Re: [Lift] Ajax forms and (multiple) submit buttons

[Adam Warski]

I would of course be very +1 to include the ajaxSubmit :). Thanks for the work.

This looks a bit different to the button I tried before, maybe you have a patch 
so that I can try it out on the test app?

Adam

On Jan 12, 2010, at 8:39 PM, Marius wrote:

> Dear all,
> 
> Recently (and not only) there have been discussions about ajax forms
> and their submit Scala functions not being called and that's because
> JQuery's form serialization doesn't serialize  the input submits (for
> pertinent reasons). The workaround is as you know to use hidden
> fields.
> 
> Adam also wanted an ajax form with multiple submit buttons taking
> different actions depending on which button is being called. This is
> also *doable* using hidden fields  but not quite from elegant.
> 
> I've experimented a way to allow ajax form submission but after all
> form field functions are being called your own ajax Scala function is
> being called (with no hidden fields).  the idea is this:
> 
> 1. I added an SHtml.ajaxSubmit which has the same signature with
> SHtml.submit
> 2. At js level I added a liftAjax.lift_uriSuffix
> 3. When clicking the ajaxSubmit button we set the
> liftAjax.lift_uriSuffix with the function name value. This is the
> function name of your scala function. Hence your scala function for
> ajaxSubmit will be called after form field functions are called.
> 
> In short we "piggy back" the Scala function info on top of the
> serialized form info.
> 
> I tested it and it works just fine for me:
> 
> Using it looks something like like:
> 
>  ajaxForm(bind("hello", xhtml,
>   "field1" -> text("", (s) => {println("field1 = " + s)}),
>   "field2" -> text("", (s) => {println("field2 = " + s)}),
>   "field3" -> text("", (s) => {println("field3 = " + s)}),
>   "submit" -> ajaxSubmit("Press me", () => {
>  println("my ajax func called.")
>  Noop
>}))
> 
> ... you got the idea.
> 
> This of course allows putting virtually any number of ajax submit
> buttons and the right function will be called on server side.
> 
> I'm thinking to add this to Lift but first I'd like to know your
> thoughts.
> 
> Br's,
> Marius
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[Lift] Re: Two database are broken in 1.1-M8, works fine in 1.1-M7 .

[Neil.Lv]

  David, Thank you very much!

  It works now, I'm so sorry about that I didn't see the yak demo
yesterday .

  :)

Cheers,
  Neil

On Jan 14, 12:43 pm, David Pollak 
wrote:
> On Wed, Jan 13, 2010 at 6:18 AM, Neil.Lv  wrote:
> > Hi David,
>
> >   I'm sorry about it that i write it wrong.
>
> >   But I change the second DBVendor name to DBVendor_2, and it create
> > a db file named "lift_proto2.db.h2.db".
> > And it doesn't work, I add this method to the User model to specify
> > the default db connection.
>
> > ###
> > override def dbDefaultConnectionIdentifier = bootstrap.liftweb.OneDB
> > ###
>
> >   I use this code in M7 and it's fine.
>
> >   How can i define a vendor for the DefaultConnectionIdentifier in
> > M8?
>
> The same way you define it in every version of Lift:
> DB.defineConnectionManager(DefaultConnectionIdentifier, DBVendor)
>
>
>
>
>
> >   Thank you very much!
>
> > Cheers,
> >  Neil
>
> > On Jan 13, 1:35 pm, David Pollak 
> > wrote:
> > > The problem with this code is you are using the same connection vendor
> > > for both connection identifiers *and* you're not defining a vendor for
> > > the DefaultConnectionIdentifier
>
> > > On Jan 11, 7:05 am, "Neil.Lv"  wrote:
>
> > > > Hi all,
>
> > > >There is a problem when i upgrading the 1.1-M7 to 1.1-M8, the db
> > > > connection is broken.
>
> > > >I use two database connection in my app, it's broken in 1.1-M8.
> > > > ###
> > > > object OneDB extends ConnectionIdentifier {
> > > >  override def jndiName = "lift_proto"}
>
> > > > object TwoDB extends ConnectionIdentifier {
> > > >  override def jndiName = "lift_proto2"}
>
> > > > ###
>
> > > >The error message is:
> > > > ###
> > > > HTTP ERROR 500
>
> > > > Problem accessing /. Reason:
>
> > > > Looking for Connection Identifier ConnectionIdentifier(lift) but
> > > > failed to find either a JNDI data source with the name lift or a lift
> > > > connection manager with the correct name
> > > > ###
>
> > > >   Maybe I missing something else configure in M8 that it's different
> > > > from M7.
>
> > > >   The test demo address is :http://github.com/anim510/two_db_demo
>
> > > >   Thanks for any help very much!
>
> > > > Cheers,
> > > >   Neil
>
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[Lift] CouchDB module status and tests

[Ross Mellgren]

Pushed to rmm_wip_couch, in case anyone wants to take a look.

I made the tests skip if couchdb is not (apparently) running at 
http://127.0.0.1:5984, as suggested by Alex Boisvert, but didn't have time to 
make the record integration test yet.

-Ross

On Jan 13, 2010, at 8:29 PM, Ross Mellgren wrote:

> Hey all,
> 
> I've completed adding a record integration to the CouchDB module I mentioned 
> a couple weeks ago (though I have not yet written unit tests, so I don't know 
> it works) as well as field classes in lift-record for optional (nullable) 
> field values. I'm in the process of writing the tests for the record 
> integration and then I'm going to add multi-document fetch maybe.
> 
> However, I've run up against something I have a question about -- the unit 
> tests. Since the tests require CouchDB to be running, and I don't think the 
> Hudson machine nor many dev machines have that, I think the tests might have 
> to be disabled by default. Is that okay?
> 
> Also, I haven't looked yet, but if anyone knows some maven-fu off the top of 
> their heads to make that happen, where the tests have to be specifically 
> enabled with a property or something, let me know.
> 
> I'm going to push a version to a rmm_wip_ branch sometime tonight with 
> however far I get in, so people can take a look if they like.
> 
> -Ross

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[Lift] Re: Lift app memory cost

[XiaomingZheng]

got it, thanks David

On Jan 14, 6:00 am, David Pollak 
wrote:
> On Wed, Jan 13, 2010 at 9:52 PM, XiaomingZheng 
> wrote:
>
> > my colleagues and i develop portals and other web apps for lots of
> > small companies. One portal is low-traffic, so we put many small
> > portals in one jetty server. we hope each portal cost as lower memory
> > as better, because there are many portals in only single one server.
> > In Lift framework, each web app must have its stuffs like LiftRules
> > obj and S obj, can we shall them in different apps for saving memory?
> > could you give me some advice?
>
> If memory size is your prime concern, PHP is probably your best bet.  Lift
> is not going to give you the memory efficiencies you sound like you're
> looking for.  Sorry.
>
>
>
>
>
> > On Jan 14, 5:01 am, David Pollak 
> > wrote:
> > > On Wed, Jan 13, 2010 at 8:00 PM, XiaomingZheng <
> > xiaomingzhen...@gmail.com>wrote:
>
> > > > Hello everyone:
> > > > I have a questions confused me right now. today i try to publish my
> > > > lift website by using mvn package, and got a war package sized more
> > > > than 10M, the lib folder is the largest. i put this package in a jetty
> > > > server found out it takes considerable memory cost. if there are lots
> > > > lift web application in one jetty server, the cost maybe a disaster...
>
> > > > any idea for lower down the lift app memory cost? I thought a idea
> > > > that put these lib files to the jetty lib folder, but only suitable
> > > > for the libs like scala-library and H2 library. When put lift-webkit
> > > > lib in jetty lib folder, there must be logic errors i think, because
> > > > different apps shared one LiftRules obj...
>
> > > > so any good idea ? thanks guys
>
> > > I routinely run low-traffic Lift-based web sites in Jetty with a 32MB
> > heap
> > > size on the JVM.  I doubt you're going to get it smaller than that.  What
> > > are your constraints?
>
> > > > --
> > > > You received this message because you are subscribed to the Google
> > Groups
> > > > "Lift" group.
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> > > > To unsubscribe from this group, send email to
> > > > liftweb+unsubscr...@googlegroups.com
> > 
>
> > > > .
> > > > For more options, visit this group at
> > > >http://groups.google.com/group/liftweb?hl=en.
>
> > > --
> > > Lift, the simply functional web frameworkhttp://liftweb.net
> > > Beginning Scalahttp://www.apress.com/book/view/1430219890
> > > Follow me:http://twitter.com/dpp
> > > Surf the harmonics
>
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>
> --
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> Beginning Scalahttp://www.apress.com/book/view/1430219890
> Follow me:http://twitter.com/dpp
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Re: [Lift] Re: Lift app memory cost

[David Pollak]

On Wed, Jan 13, 2010 at 9:52 PM, XiaomingZheng wrote:

> my colleagues and i develop portals and other web apps for lots of
> small companies. One portal is low-traffic, so we put many small
> portals in one jetty server. we hope each portal cost as lower memory
> as better, because there are many portals in only single one server.
> In Lift framework, each web app must have its stuffs like LiftRules
> obj and S obj, can we shall them in different apps for saving memory?
> could you give me some advice?
>

If memory size is your prime concern, PHP is probably your best bet.  Lift
is not going to give you the memory efficiencies you sound like you're
looking for.  Sorry.


>
> On Jan 14, 5:01 am, David Pollak 
> wrote:
> > On Wed, Jan 13, 2010 at 8:00 PM, XiaomingZheng <
> xiaomingzhen...@gmail.com>wrote:
> >
> > > Hello everyone:
> > > I have a questions confused me right now. today i try to publish my
> > > lift website by using mvn package, and got a war package sized more
> > > than 10M, the lib folder is the largest. i put this package in a jetty
> > > server found out it takes considerable memory cost. if there are lots
> > > lift web application in one jetty server, the cost maybe a disaster...
> >
> > > any idea for lower down the lift app memory cost? I thought a idea
> > > that put these lib files to the jetty lib folder, but only suitable
> > > for the libs like scala-library and H2 library. When put lift-webkit
> > > lib in jetty lib folder, there must be logic errors i think, because
> > > different apps shared one LiftRules obj...
> >
> > > so any good idea ? thanks guys
> >
> > I routinely run low-traffic Lift-based web sites in Jetty with a 32MB
> heap
> > size on the JVM.  I doubt you're going to get it smaller than that.  What
> > are your constraints?
> >
> >
> >
> > > --
> > > You received this message because you are subscribed to the Google
> Groups
> > > "Lift" group.
> > > To post to this group, send email to lift...@googlegroups.com.
> > > To unsubscribe from this group, send email to
> > > liftweb+unsubscr...@googlegroups.com
> 
> >
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/liftweb?hl=en.
> >
> > --
> > Lift, the simply functional web frameworkhttp://liftweb.net
> > Beginning Scalahttp://www.apress.com/book/view/1430219890
> > Follow me:http://twitter.com/dpp
> > Surf the harmonics
>
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>
>
>
>


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Follow me: http://twitter.com/dpp
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[Lift] Re: Lift app memory cost

[XiaomingZheng]

my colleagues and i develop portals and other web apps for lots of
small companies. One portal is low-traffic, so we put many small
portals in one jetty server. we hope each portal cost as lower memory
as better, because there are many portals in only single one server.
In Lift framework, each web app must have its stuffs like LiftRules
obj and S obj, can we shall them in different apps for saving memory?
could you give me some advice?

On Jan 14, 5:01 am, David Pollak 
wrote:
> On Wed, Jan 13, 2010 at 8:00 PM, XiaomingZheng 
> wrote:
>
> > Hello everyone:
> > I have a questions confused me right now. today i try to publish my
> > lift website by using mvn package, and got a war package sized more
> > than 10M, the lib folder is the largest. i put this package in a jetty
> > server found out it takes considerable memory cost. if there are lots
> > lift web application in one jetty server, the cost maybe a disaster...
>
> > any idea for lower down the lift app memory cost? I thought a idea
> > that put these lib files to the jetty lib folder, but only suitable
> > for the libs like scala-library and H2 library. When put lift-webkit
> > lib in jetty lib folder, there must be logic errors i think, because
> > different apps shared one LiftRules obj...
>
> > so any good idea ? thanks guys
>
> I routinely run low-traffic Lift-based web sites in Jetty with a 32MB heap
> size on the JVM.  I doubt you're going to get it smaller than that.  What
> are your constraints?
>
>
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Lift" group.
> > To post to this group, send email to lift...@googlegroups.com.
> > To unsubscribe from this group, send email to
> > liftweb+unsubscr...@googlegroups.com
> > .
> > For more options, visit this group at
> >http://groups.google.com/group/liftweb?hl=en.
>
> --
> Lift, the simply functional web frameworkhttp://liftweb.net
> Beginning Scalahttp://www.apress.com/book/view/1430219890
> Follow me:http://twitter.com/dpp
> Surf the harmonics
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Re: [Lift] [netbeans] getting lift-archetype-blank to work inside netbeans

[Naftoli Gugenheim]

Either use an older version of Netbeans or another IDE, or checkout the 
unsupported 280_port branch from git and mvn clean install.


-
carlosayam wrote:

Hi,

I followed the instructions here
http://wiki.netbeans.org/Scala68v1
to install the 6.8 plugin for Scala.

Problem is that the lift-archetype-blank says scala-version 2.7.7.

And the netbeans plugin comes with its own version (scala-compiler.jar/
compiler.properties > version.number=2.8.0.r19918-b20091128085106)

Whereas the latest  - which I installed as per instructions - is
2.8.0.r20436-b20100111020117

Well, I modified the pom.xml generated by the archetype and put the
latest available version of scala according to mavensearch.net
2.8.0.r18462-b20090811081019.

But when using netbeans to download the Lift classes I'm getting:
[ERROR]error: error while loading Loc, Scala signature Loc has wrong
version
 expected: 5.0
 found: 4.1 in C:\Documents and Settings\carlos\.m2\repository\net
\liftweb\lift-webkit\0.8\lift-webkit-0.8.jar(net/liftweb/sitemap/
Loc.class)

<.. among others ..>

<.. Hum, the modern nightmare of open source is versioning between
IDE, compilers and frameworks ...>

I am guessing it's because the Lift framework was compiled against 2.7
and the scala 2.8 compiler doesn't like them.

Any ideas on how to move forward? I know some people prefer not to use
IDEs, but I want to give it a good try.

regards
Carlos
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[Lift] [netbeans] getting lift-archetype-blank to work inside netbeans

[carlosayam]

Hi,

I followed the instructions here
http://wiki.netbeans.org/Scala68v1
to install the 6.8 plugin for Scala.

Problem is that the lift-archetype-blank says scala-version 2.7.7.

And the netbeans plugin comes with its own version (scala-compiler.jar/
compiler.properties > version.number=2.8.0.r19918-b20091128085106)

Whereas the latest  - which I installed as per instructions - is
2.8.0.r20436-b20100111020117

Well, I modified the pom.xml generated by the archetype and put the
latest available version of scala according to mavensearch.net
2.8.0.r18462-b20090811081019.

But when using netbeans to download the Lift classes I'm getting:
[ERROR]error: error while loading Loc, Scala signature Loc has wrong
version
 expected: 5.0
 found: 4.1 in C:\Documents and Settings\carlos\.m2\repository\net
\liftweb\lift-webkit\0.8\lift-webkit-0.8.jar(net/liftweb/sitemap/
Loc.class)

<.. among others ..>

<.. Hum, the modern nightmare of open source is versioning between
IDE, compilers and frameworks ...>

I am guessing it's because the Lift framework was compiled against 2.7
and the scala 2.8 compiler doesn't like them.

Any ideas on how to move forward? I know some people prefer not to use
IDEs, but I want to give it a good try.

regards
Carlos
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Re: [Lift] Lift app memory cost

[Naftoli Gugenheim]

I think he means disk space.
Although for some reason 256m didn't seem to be enough for my super-low-traffic 
webapp... but I don't want to derail this thread.

-
David Pollak wrote:

On Wed, Jan 13, 2010 at 8:00 PM, XiaomingZheng wrote:

> Hello everyone:
> I have a questions confused me right now. today i try to publish my
> lift website by using mvn package, and got a war package sized more
> than 10M, the lib folder is the largest. i put this package in a jetty
> server found out it takes considerable memory cost. if there are lots
> lift web application in one jetty server, the cost maybe a disaster...
>
> any idea for lower down the lift app memory cost? I thought a idea
> that put these lib files to the jetty lib folder, but only suitable
> for the libs like scala-library and H2 library. When put lift-webkit
> lib in jetty lib folder, there must be logic errors i think, because
> different apps shared one LiftRules obj...
>
> so any good idea ? thanks guys
>

I routinely run low-traffic Lift-based web sites in Jetty with a 32MB heap
size on the JVM.  I doubt you're going to get it smaller than that.  What
are your constraints?


>
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>
>
>
>


-- 
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Re: [Lift] Re: Code generation plugin for SBT

[David Pollak]

Oh I just started using SBT as well and love it.

Looking forward to serious Lift support in SBT!

On Mon, Jan 11, 2010 at 8:43 PM, Brian Hsu  wrote:

> Hello, I'm interested in this project.
>
> Just in case that there are someone eles is working on this too.
>
> Currently I have started working on the part of generate Lift website
> skeleton corresponding to lift-archetype-blank / lift-archetype-basic
> in mvn repo.
>
> I've not finished it yet, but as soon as I finished and tested it
> works, I will send a pull request on GitHub.
>
> On 1月11日, 上午2時22分, Timothy Perrett  wrote:
> > Hi all,
> >
> > I've started a little project to add code-generation to SBT and I
> > would like to hear from anyone who wants to collaborate (and has time
> > to).
> >
> > This could be very important for the lift community, and my aim is to
> > make something like thus:
> >
> > > generate lift snippet WhateverName
> >
> > where generate is the sbt plugin command, lift is the "library"
> > defined in the plugin/project def, snippet is the "action/template"
> > and WhateverName is the args* that the action or template takes.
> >
> > Im thinking of producing template "libraries" as JARs and then they
> > could just be distributed via the maven repository system.
> >
> > So, if you want to help out on this, id love to hear from you. If
> > would be an extra bonus if you are an SBT master or have written other
> > plugins as that is where my knowledge is weakest.
> >
> > Cheers, Tim
>
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>
>
>


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Re: [Lift] Lift app memory cost

[David Pollak]

On Wed, Jan 13, 2010 at 8:00 PM, XiaomingZheng wrote:

> Hello everyone:
> I have a questions confused me right now. today i try to publish my
> lift website by using mvn package, and got a war package sized more
> than 10M, the lib folder is the largest. i put this package in a jetty
> server found out it takes considerable memory cost. if there are lots
> lift web application in one jetty server, the cost maybe a disaster...
>
> any idea for lower down the lift app memory cost? I thought a idea
> that put these lib files to the jetty lib folder, but only suitable
> for the libs like scala-library and H2 library. When put lift-webkit
> lib in jetty lib folder, there must be logic errors i think, because
> different apps shared one LiftRules obj...
>
> so any good idea ? thanks guys
>

I routinely run low-traffic Lift-based web sites in Jetty with a 32MB heap
size on the JVM.  I doubt you're going to get it smaller than that.  What
are your constraints?


>
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Re: [Lift] Submenu disappeared

[David Pollak]

On Wed, Jan 13, 2010 at 8:53 PM, Naftoli Gugenheim wrote:

> 1.1-SNAPSHOT, and I don't think it's very up to date.
> This bug would hide even active submenus?
>

Yes.


>
> -
> David Pollak wrote:
>
> On Wed, Jan 13, 2010 at 5:28 PM, Naftoli Gugenheim  >wrote:
>
> > For some reason all of a sudden all the menus under Home do not display.
> > Any idea where to look?
> >
>
> What version of Lift?  Do you have a repro case?  There was a bug
> introduced
> 3 weeks ago and fixed last week related to this, but it should be fine in
> 2.0-SNAPSHOT and 2.0 M1 (did M1 happen today?)
>
>
> > Thanks.
> >
> > --
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> >
> >
> >
> >
>
>
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Re: [Lift] Submenu disappeared

[Naftoli Gugenheim]

1.1-SNAPSHOT, and I don't think it's very up to date.
This bug would hide even active submenus?

-
David Pollak wrote:

On Wed, Jan 13, 2010 at 5:28 PM, Naftoli Gugenheim wrote:

> For some reason all of a sudden all the menus under Home do not display.
> Any idea where to look?
>

What version of Lift?  Do you have a repro case?  There was a bug introduced
3 weeks ago and fixed last week related to this, but it should be fine in
2.0-SNAPSHOT and 2.0 M1 (did M1 happen today?)


> Thanks.
>
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Re: [Lift] Re: Two database are broken in 1.1-M8, works fine in 1.1-M7 .

[David Pollak]

On Wed, Jan 13, 2010 at 6:18 AM, Neil.Lv  wrote:

> Hi David,
>
>   I'm sorry about it that i write it wrong.
>
>   But I change the second DBVendor name to DBVendor_2, and it create
> a db file named "lift_proto2.db.h2.db".
> And it doesn't work, I add this method to the User model to specify
> the default db connection.
>
> ###
> override def dbDefaultConnectionIdentifier = bootstrap.liftweb.OneDB
> ###
>
>   I use this code in M7 and it's fine.
>
>   How can i define a vendor for the DefaultConnectionIdentifier in
> M8?
>

The same way you define it in every version of Lift:
DB.defineConnectionManager(DefaultConnectionIdentifier, DBVendor)





>
>   Thank you very much!
>
> Cheers,
>  Neil
>
> On Jan 13, 1:35 pm, David Pollak 
> wrote:
> > The problem with this code is you are using the same connection vendor
> > for both connection identifiers *and* you're not defining a vendor for
> > the DefaultConnectionIdentifier
> >
> > On Jan 11, 7:05 am, "Neil.Lv"  wrote:
> >
> > > Hi all,
> >
> > >There is a problem when i upgrading the 1.1-M7 to 1.1-M8, the db
> > > connection is broken.
> >
> > >I use two database connection in my app, it's broken in 1.1-M8.
> > > ###
> > > object OneDB extends ConnectionIdentifier {
> > >  override def jndiName = "lift_proto"}
> >
> > > object TwoDB extends ConnectionIdentifier {
> > >  override def jndiName = "lift_proto2"}
> >
> > > ###
> >
> > >The error message is:
> > > ###
> > > HTTP ERROR 500
> >
> > > Problem accessing /. Reason:
> >
> > > Looking for Connection Identifier ConnectionIdentifier(lift) but
> > > failed to find either a JNDI data source with the name lift or a lift
> > > connection manager with the correct name
> > > ###
> >
> > >   Maybe I missing something else configure in M8 that it's different
> > > from M7.
> >
> > >   The test demo address is :http://github.com/anim510/two_db_demo
> >
> > >   Thanks for any help very much!
> >
> > > Cheers,
> > >   Neil
>
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Re: [Lift] Schemifier broken for Oracle

[David Pollak]

Please try with Lift 2.0-SNAPSHOT.  We made a number of significant fixes to
Schemifier over the course of the year including improving support for
case-sensitive RDBMS.

On Wed, Jan 13, 2010 at 6:54 PM, aw  wrote:

> I'm pretty sure that I discovered that a bug was introduced that
> breaks Schemifier with Oracle...
>
> First of all, Oracle's JDBC driver has the odd behavior of being case
> sensitive when it comes to acquiring metadata.  For example:
> DatabaseMetaData.getColumns(null, "MYSCHEMA", "MYTABLE", null) is not
> the same as DatabaseMetaData.getColumns(null, "MYSCHEMA", "myTable",
> null)...  In fact, the latter option yields no results...
>
> Well, looking at 1.0 Schemifier source, see line 189:
>
> http://scala-tools.org/scaladocs/liftweb/1.0/net/liftweb/mapper/Schemifier.scala.htm
> You can see that it used:  table.dbTableName
>
> If you look at the latest source, see line 193:
>
> http://github.com/dpp/liftweb/blob/master/framework/lift-persistence/lift-mapper/src/main/scala/net/liftweb/mapper/Schemifier.scala#L193
> You can see that it uses:  table._dbTableNameLC
>
> This change broke ensureColumns for Oracle.
>
> As a side note -- there was no useful error message explaining that no
> column metadata was found for table X.  This took a while to trace.
>
> I must admit that I am surprised by Oracle's behavior.  Since the
> database isn't case sensitive, the table name parameter should not be
> case sensitive -- but it certainly is by my testing (and I am using
> 11g).
>
> Why was the code changed to specify a lower case value?
>
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Re: [Lift] Re: Lift - GAE Version

[David Pollak]

On Wed, Jan 13, 2010 at 3:13 PM, __kaveh__ wrote:

> Agreed; things like Comet Style request processing; yet Lift model for
> separating concerns and it's powerful template system can really makes
> a complete web application ecosystem on GAE.
>

The all of the "standard" parts of Lift work on GAE except Comet and Mapper.
 Comet doesn't work because of the ban in GAE of creating threads (Actors)
and Mapper doesn't work because there's no JDBC source on GAE.

With that being said, I personally think GAE is the worst of all possible
worlds.  GAE has a severely limited run-time (the idea of not being able to
have asynchronous messages is a huge limitation).  BigTable is good for a
limited number of things, but even the most trivial apps (e.g., yet another
Twitter Clone) is going to require a relational database or some other model
beyond what BigTable offers.

GAE nominally scales well, but if you're moving to Twitter-like traffic,
you're not going to want to be tied to Google's infrastructure... it's just
too scaring from a business perspective.

For $10/mo, you can rent a slice at SliceHost or prgmr.com that will run a
nice app and allow it to scale to hundreds or maybe thousands of users.

So, if you have an actual need for Lift on GAE for an actual production site
and Lift is not offering a particular something you need, please tell us
about it and we'll see about scheduling a fix.

Thanks,

David


>
> On Jan 14, 1:51 am, Randinn  wrote:
> > The problem as far as I know is the GAE sandboxing inhibits most of
> > what makes lift, lift.
> >
> > On Jan 14, 8:56 am, __kaveh__  wrote:
> >
> > > Introduction: I apologize in advanced for I am naive about Scala, Lift
> > > and elegant design decisions in Lift. I am a C#/ASP.NET/Windows
> > > Application developer. I played with Scala and it was the C# I was
> > > looking for! My job is on .NET platform. But for enjoying something
> > > (and maybe put into real use later) Scala and Lift are really nice
> > > choices (IMHO).
> >
> > > Could there be an official GAE (Google App Engine) version of Lift?
> >
> > > It appears that - for some reason I can not figure out; one of them
> > > for sure is elegance - Lift and Scala are attracting to those who want
> > > to use GAE/J. This can be a winning/dominated playground for both of
> > > them (even if we put aside concurrency features in GRE) for those who
> > > want to use GRE/J.
> >
> > > Regards
>
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Re: [Lift] Submenu disappeared

[David Pollak]

On Wed, Jan 13, 2010 at 5:28 PM, Naftoli Gugenheim wrote:

> For some reason all of a sudden all the menus under Home do not display.
> Any idea where to look?
>

What version of Lift?  Do you have a repro case?  There was a bug introduced
3 weeks ago and fixed last week related to this, but it should be fine in
2.0-SNAPSHOT and 2.0 M1 (did M1 happen today?)


> Thanks.
>
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>
>
>


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[Lift] Re: Developing with IntelliJ IDEA 9.0?

[Steve Swing]

I use IntelliJ IDEA IU-93.13 with Lift. I don't typically run and
debug in the IDE too much yet. I know what's the point? I actually
like the editor. For build and run I use mvn clean install to build
non-web modules and mvn jetty:run for web modules. I'm hoping as the
Scala plugin improves code insight & completion will as well. I expect
that will help me learn Scala and features of Lift too.

Steve
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[Lift] Lift app memory cost

[XiaomingZheng]

Hello everyone:
I have a questions confused me right now. today i try to publish my
lift website by using mvn package, and got a war package sized more
than 10M, the lib folder is the largest. i put this package in a jetty
server found out it takes considerable memory cost. if there are lots
lift web application in one jetty server, the cost maybe a disaster...

any idea for lower down the lift app memory cost? I thought a idea
that put these lib files to the jetty lib folder, but only suitable
for the libs like scala-library and H2 library. When put lift-webkit
lib in jetty lib folder, there must be logic errors i think, because
different apps shared one LiftRules obj...

so any good idea ? thanks guys
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[Lift] Re: Scheduling the San Francisco Scala Lift Off

[Steven]

Everyone,

Hello from NYC.  I wish I would have attended the Reston, VA Lift Off,
but it was a bit before I looked seriously at Scala/Lift.

(Now I've got our company using it internally and for clients soon.)
In any case, I've got some PHP/ActionScript devs on my team interested
in Scala/Lift, and I'll be making my first trip to San Fran for
DrupalCon San Francisco, which is from April 19th - 21st.  If you
can't find a suitable Java event to put things around, I'd definitely
try to find a way to attend if it was within a week of DrupalCon, and
I'd also try to drag as many PHP devs as possible.

Probably not what you were looking for, but keep it in mind. :)

On Jan 12, 10:31 pm, David Pollak 
wrote:
> Folks,
>
> For the last two years, the San Francisco Scala Lift Off has happened the
> day after JavaOne.  It's looking like JavaOne might not happen this year, so
> I'm starting to think about a time in the April-June timeframe when there
> are a lot of Scala and/or Java folks in San Francisco.  If you all have any
> ideas of good dates, please post them.
>
> We will be having a Summer Scala Lift Off in London, a fall Scala Lift Off
> on the east coast of the US and a Scala Lift Off in Norway around the same
> time as JavaZone.
>
> Looking forward to 2010 being a Scala-Lift-tastic year.
>
> Thanks,
>
> David
>
> --
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[Lift] Schemifier broken for Oracle

[aw]

I'm pretty sure that I discovered that a bug was introduced that
breaks Schemifier with Oracle...

First of all, Oracle's JDBC driver has the odd behavior of being case
sensitive when it comes to acquiring metadata.  For example:
DatabaseMetaData.getColumns(null, "MYSCHEMA", "MYTABLE", null) is not
the same as DatabaseMetaData.getColumns(null, "MYSCHEMA", "myTable",
null)...  In fact, the latter option yields no results...

Well, looking at 1.0 Schemifier source, see line 189:
  
http://scala-tools.org/scaladocs/liftweb/1.0/net/liftweb/mapper/Schemifier.scala.htm
You can see that it used:  table.dbTableName

If you look at the latest source, see line 193:
  
http://github.com/dpp/liftweb/blob/master/framework/lift-persistence/lift-mapper/src/main/scala/net/liftweb/mapper/Schemifier.scala#L193
You can see that it uses:  table._dbTableNameLC

This change broke ensureColumns for Oracle.

As a side note -- there was no useful error message explaining that no
column metadata was found for table X.  This took a while to trace.

I must admit that I am surprised by Oracle's behavior.  Since the
database isn't case sensitive, the table name parameter should not be
case sensitive -- but it certainly is by my testing (and I am using
11g).

Why was the code changed to specify a lower case value?
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Re: [Lift] Re: Backbutton for Ajax

[Naftoli Gugenheim]

I haven't really used Ajax much but it seems to me there are two kinds of 
changes.
1. Modifying the view, e.g., clicking an emal in Gmail, or Expand All. One can 
make an analogy to a GET request, in that there's no permanent change.
2. Taking actions, e.g., invoking an action on the server, or deleting the 
viewed email in Gmail. The analogy would be to a POST.
It seems to me that Lift's Ajax is often used for #2. However backbutton 
support doesn't really make sense in that scenario.


-
Alex Boisvert wrote:

Just thinking out loud as to how this could work...

On modern browsers, it's possible to monitor the state change of the
browser's URL hash (aka window.location.hash /  '#' / document fragment) in
the browser with the 'onhashchange' DOM event.  It gets fired whenever the
location.hash changes.  On older browsers, it's also possible to poll for
change which is less efficient but that's life.

So the idea would be to:

1) add a snippet or utility method to set up a listener on onhashchange that
would callback Scala functions associated with given hash (e.g. #foo, #bar,
...).  Hashes could support parameters too (e.g., #foo/:param1/:param2)

2) add a method S.ajaxHash(hashPath, callback): JsCmd that would bind a hash
path/pattern to a Scala function (by registering the path/pattern with the
listener)

3) add a method S.changeHash(hashPath, params): JsCmd to programmatically
change the browser's hash as a result of some AJAX processing.

I don't have time to work on this yet but I'd be happy to hear what others
think of the idea.

alex

On Wed, Jan 13, 2010 at 2:45 PM, greekscala  wrote:

> Hello,
>
> I would really would like to have this type of support from lift.
> I looked at GWT and think this is a nice way. They use url parameters
> after a '#'. I dont understand the process because I have very little
> javascript knowledge.
>
> But I am thinking, lift is creating unique function names and is
> calling them with ajax.
> Maybe there is a way to have the functions be called over a way like
> GWT?
>
> Just creating some thoughts...
>
> best regards
>
>
> On 12 Jan., 13:23, greekscala  wrote:
> > Hello Timothy,
> >
> > there is nothing stoping me from using it.
> > But when I think of a framework it would be nice to "activate"
> > backbutton support.
> > I think this is somethink a lot of people would appreciate to have and
> > not everybody
> > should have to build this from the ground up.
> >
> > I do not have to deal with this now but in near future. I will have to
> > search
> > what ways are avalable. And if I can intergrate this im my app, maybe
> > we
> > can find a way to abstract it.
> >
> > with best regards
> >
> > On 12 Jan., 00:35, Timothy Perrett  wrote:
> >
> > > I'm not sure what is stopping you using something like this in
> > > conjunction with lift?
> >
> > > If you want something baked in, can you be specific with what and how
> > > you might want it to work?
> >
> > > Cheers, Tim
> >
> > > Sent from my iPhone
> >
> > > On 11 Jan 2010, at 23:13, greekscala  wrote:
> >
> > > > Hello Alex!
> >
> > > > I will take a look at sammy.js .
> > > > I would like to have some way for this in Lift too.
> > > > Since with Lift it is easy to do alot of ajax.
> >
> > > > with best regards
> >
> > > > On 11 Jan., 23:05, Alex Boisvert  wrote:
> > > >> I've been playing with sammy.js 
> > > >> recently
> > > >> and I like the way they update the URL fragment identifier (hash)
> > > >> when doing
> > > >> AJAX which makes apps more back-button friendly, in a manner that's
>
> > > >> similar
> > > >> to GMail.
> >
> > > >> It would be nice to have something similar in Lift.
> >
> > > >> alex
> >
> > > >> On Mon, Jan 11, 2010 at 4:55 PM, greekscala
> > > >>  wrote:
> > > >>> Hello Lift people!
> >
> > > >>> I would like to know how experienced lift devs think and what they
>
> > > >>> do
> > > >>> about
> > > >>> ajax backbutton support.
> >
> > > >>> with best regards
> >
> > > >>> --
> > > >>> You received this message because you are subscribed to the Google
>
> > > >>> Groups
> > > >>> "Lift" group.
> > > >>> To post to this group, send email to lift...@googlegroups.com.
> > > >>> To unsubscribe from this group, send email to
> > > >>> liftweb+unsubscr...@googlegroups.com
>  > > >>> %2bunsubscr...@googlegroups.com>
> > > >>> .
> > > >>> For more options, visit this group at
> > > >>>http://groups.google.com/group/liftweb?hl=en.
> > > > --
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> > > > .
>
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Re: [Lift] Re: Backbutton for Ajax

[Alex Boisvert]

Just thinking out loud as to how this could work...

On modern browsers, it's possible to monitor the state change of the
browser's URL hash (aka window.location.hash /  '#' / document fragment) in
the browser with the 'onhashchange' DOM event.  It gets fired whenever the
location.hash changes.  On older browsers, it's also possible to poll for
change which is less efficient but that's life.

So the idea would be to:

1) add a snippet or utility method to set up a listener on onhashchange that
would callback Scala functions associated with given hash (e.g. #foo, #bar,
...).  Hashes could support parameters too (e.g., #foo/:param1/:param2)

2) add a method S.ajaxHash(hashPath, callback): JsCmd that would bind a hash
path/pattern to a Scala function (by registering the path/pattern with the
listener)

3) add a method S.changeHash(hashPath, params): JsCmd to programmatically
change the browser's hash as a result of some AJAX processing.

I don't have time to work on this yet but I'd be happy to hear what others
think of the idea.

alex

On Wed, Jan 13, 2010 at 2:45 PM, greekscala  wrote:

> Hello,
>
> I would really would like to have this type of support from lift.
> I looked at GWT and think this is a nice way. They use url parameters
> after a '#'. I dont understand the process because I have very little
> javascript knowledge.
>
> But I am thinking, lift is creating unique function names and is
> calling them with ajax.
> Maybe there is a way to have the functions be called over a way like
> GWT?
>
> Just creating some thoughts...
>
> best regards
>
>
> On 12 Jan., 13:23, greekscala  wrote:
> > Hello Timothy,
> >
> > there is nothing stoping me from using it.
> > But when I think of a framework it would be nice to "activate"
> > backbutton support.
> > I think this is somethink a lot of people would appreciate to have and
> > not everybody
> > should have to build this from the ground up.
> >
> > I do not have to deal with this now but in near future. I will have to
> > search
> > what ways are avalable. And if I can intergrate this im my app, maybe
> > we
> > can find a way to abstract it.
> >
> > with best regards
> >
> > On 12 Jan., 00:35, Timothy Perrett  wrote:
> >
> > > I'm not sure what is stopping you using something like this in
> > > conjunction with lift?
> >
> > > If you want something baked in, can you be specific with what and how
> > > you might want it to work?
> >
> > > Cheers, Tim
> >
> > > Sent from my iPhone
> >
> > > On 11 Jan 2010, at 23:13, greekscala  wrote:
> >
> > > > Hello Alex!
> >
> > > > I will take a look at sammy.js .
> > > > I would like to have some way for this in Lift too.
> > > > Since with Lift it is easy to do alot of ajax.
> >
> > > > with best regards
> >
> > > > On 11 Jan., 23:05, Alex Boisvert  wrote:
> > > >> I've been playing with sammy.js 
> > > >> recently
> > > >> and I like the way they update the URL fragment identifier (hash)
> > > >> when doing
> > > >> AJAX which makes apps more back-button friendly, in a manner that's
>
> > > >> similar
> > > >> to GMail.
> >
> > > >> It would be nice to have something similar in Lift.
> >
> > > >> alex
> >
> > > >> On Mon, Jan 11, 2010 at 4:55 PM, greekscala
> > > >>  wrote:
> > > >>> Hello Lift people!
> >
> > > >>> I would like to know how experienced lift devs think and what they
>
> > > >>> do
> > > >>> about
> > > >>> ajax backbutton support.
> >
> > > >>> with best regards
> >
> > > >>> --
> > > >>> You received this message because you are subscribed to the Google
>
> > > >>> Groups
> > > >>> "Lift" group.
> > > >>> To post to this group, send email to lift...@googlegroups.com.
> > > >>> To unsubscribe from this group, send email to
> > > >>> liftweb+unsubscr...@googlegroups.com
>  > > >>> %2bunsubscr...@googlegroups.com>
> > > >>> .
> > > >>> For more options, visit this group at
> > > >>>http://groups.google.com/group/liftweb?hl=en.
> > > > --
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> > > > .
>
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Re: [Lift] Developing with IntelliJ IDEA 9.0?

[Margaret]

I am working with IDEA
Maia-IU-90.122 . it works very well


-
mawei...@gmail.com
13585201588
http://maweis.com




On Thu, Jan 14, 2010 at 9:41 AM, Sasha Ovsankin  wrote:
> Hello all --
>
> I have tried to compile the quickstart project with the latest Scala
> plugin for IntelliJ 0.3.385, not very successfully: it either
> complains about LIFT libraries compiled with the wrong version of the
> compiler (the plugin comes with 2.8)  or if I set the plugin to use
> the 2.7 compiler it doesn't work at all.
>
> Even posted the question to the plugin page (http://www.jetbrains.net/
> confluence/display/SCA/Scala+Plugin+for+IntelliJ+IDEA) but no response
> yet.
>
> Did anybody manage to make this setup work? Any insight?
>
> Thanks,
> -- Sasha
>
> --
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>
>
>
>
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[Lift] Developing with IntelliJ IDEA 9.0?

[Sasha Ovsankin]

Hello all --

I have tried to compile the quickstart project with the latest Scala
plugin for IntelliJ 0.3.385, not very successfully: it either
complains about LIFT libraries compiled with the wrong version of the
compiler (the plugin comes with 2.8)  or if I set the plugin to use
the 2.7 compiler it doesn't work at all.

Even posted the question to the plugin page (http://www.jetbrains.net/
confluence/display/SCA/Scala+Plugin+for+IntelliJ+IDEA) but no response
yet.

Did anybody manage to make this setup work? Any insight?

Thanks,
-- Sasha
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[Lift] Submenu disappeared

[Naftoli Gugenheim]

For some reason all of a sudden all the menus under Home do not display. Any 
idea where to look?
Thanks.
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[Lift] Re: Default Schema for DefaultConnectionIdentifier

[aw]

I found DB.globalDefaultSchemaName, but the Schemifier is still
breaking:

java.util.NoSuchElementException: key not found: mytablename
at scala.collection.Map$class.default(Map.scala:169) [scala-
library-2.7.7.jar:na]
at scala.collection.mutable.HashMap.default(HashMap.scala:33)
[scala-library-2.7.7.jar:na]
at scala.collection.Map$class.apply(Map.scala:80) [scala-
library-2.7.7.jar:na]
at scala.collection.mutable.HashMap.apply(HashMap.scala:33)
[scala-library-2.7.7.jar:na]
at net.liftweb.mapper.Schemifier$$anonfun$6$$anonfun$apply
$8.apply(Schemifier.scala:193) [lift-mapper-1.1-M8.jar:1.1-M8]
at net.liftweb.mapper.Schemifier$$anonfun$6$$anonfun$apply
$8.apply(Schemifier.scala:193) [lift-mapper-1.1-M8.jar:1.1-M8]
at net.liftweb.mapper.Schemifier$.net$liftweb$mapper$Schemifier
$$using(Schemifier.scala:44) [lift-mapper-1.1-M8.jar:1.1-M8]
at net.liftweb.mapper.Schemifier$$anonfun$6.apply
(Schemifier.scala:193)[lift-mapper-1.1-M8.jar:1.1-M8]
at net.liftweb.mapper.Schemifier$$anonfun$6.apply
(Schemifier.scala:187)[lift-mapper-1.1-M8.jar:1.1-M8]
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Re: [Lift] Re: Lift - GAE Version

[Naftoli Gugenheim]

Lift can be used on GAE.

-
__kaveh__ wrote:

Agreed; things like Comet Style request processing; yet Lift model for
separating concerns and it's powerful template system can really makes
a complete web application ecosystem on GAE.

On Jan 14, 1:51 am, Randinn  wrote:
> The problem as far as I know is the GAE sandboxing inhibits most of
> what makes lift, lift.
>
> On Jan 14, 8:56 am, __kaveh__  wrote:
>
> > Introduction: I apologize in advanced for I am naive about Scala, Lift
> > and elegant design decisions in Lift. I am a C#/ASP.NET/Windows
> > Application developer. I played with Scala and it was the C# I was
> > looking for! My job is on .NET platform. But for enjoying something
> > (and maybe put into real use later) Scala and Lift are really nice
> > choices (IMHO).
>
> > Could there be an official GAE (Google App Engine) version of Lift?
>
> > It appears that - for some reason I can not figure out; one of them
> > for sure is elegance - Lift and Scala are attracting to those who want
> > to use GAE/J. This can be a winning/dominated playground for both of
> > them (even if we put aside concurrency features in GRE) for those who
> > want to use GRE/J.
>
> > Regards
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[Lift] Re: Lift - GAE Version

[__kaveh__]

Agreed; things like Comet Style request processing; yet Lift model for
separating concerns and it's powerful template system can really makes
a complete web application ecosystem on GAE.

On Jan 14, 1:51 am, Randinn  wrote:
> The problem as far as I know is the GAE sandboxing inhibits most of
> what makes lift, lift.
>
> On Jan 14, 8:56 am, __kaveh__  wrote:
>
> > Introduction: I apologize in advanced for I am naive about Scala, Lift
> > and elegant design decisions in Lift. I am a C#/ASP.NET/Windows
> > Application developer. I played with Scala and it was the C# I was
> > looking for! My job is on .NET platform. But for enjoying something
> > (and maybe put into real use later) Scala and Lift are really nice
> > choices (IMHO).
>
> > Could there be an official GAE (Google App Engine) version of Lift?
>
> > It appears that - for some reason I can not figure out; one of them
> > for sure is elegance - Lift and Scala are attracting to those who want
> > to use GAE/J. This can be a winning/dominated playground for both of
> > them (even if we put aside concurrency features in GRE) for those who
> > want to use GRE/J.
>
> > Regards
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Re: [Lift] Re: Lift - GAE Version

[Timothy Perrett]

This is correct - many part of lift don't work on GAe... So far, we've  
seen little need for it as the vast majority of users simply want more  
than GAE can offer.


Cheers, Tim

Sent from my iPhone

On 13 Jan 2010, at 22:51, Randinn  wrote:


The problem as far as I know is the GAE sandboxing inhibits most of
what makes lift, lift.

On Jan 14, 8:56 am, __kaveh__  wrote:
Introduction: I apologize in advanced for I am naive about Scala,  
Lift

and elegant design decisions in Lift. I am a C#/ASP.NET/Windows
Application developer. I played with Scala and it was the C# I was
looking for! My job is on .NET platform. But for enjoying something
(and maybe put into real use later) Scala and Lift are really nice
choices (IMHO).

Could there be an official GAE (Google App Engine) version of Lift?

It appears that - for some reason I can not figure out; one of them
for sure is elegance - Lift and Scala are attracting to those who  
want

to use GAE/J. This can be a winning/dominated playground for both of
them (even if we put aside concurrency features in GRE) for those who
want to use GRE/J.

Regards

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.
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.



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[Lift] Re: Scheduling the San Francisco Scala Lift Off

[Randinn]

A couple of the members of the Scala user group seem to be interested
in Lift but as far as I know I'm the 'expert' in Melbourne(sorry guys!
It would only take them a week or so to catch up).

On Jan 14, 4:57 am, Timothy Perrett  wrote:
> There is an EU meet-up at EPFL in April... thats as good as we are going to 
> get (until there is more UK lift following)!
>
> Cheers, Tim
>
> On 13 Jan 2010, at 17:35, Stuart Roebuck wrote:
>
> > Or Edinburgh? :-)
>
> > On Jan 13, 12:22 pm, Mads Hartmann  wrote:
> >> Was is 'Scala Lift Off' ?
> >> I live in Denmark so i might be able to make it in either London or
> >> Norway :)
>
> >> On Jan 13, 12:32 pm, Miles Sabin  wrote:
>
> >>> On Wed, Jan 13, 2010 at 3:31 AM, David Pollak
>
> >>>  wrote:
>  For the last two years, the San Francisco Scala Lift Off has happened the
>  day after JavaOne.  It's looking like JavaOne might not happen this 
>  year, so
>  I'm starting to think about a time in the April-June timeframe when there
>  are a lot of Scala and/or Java folks in San Francisco.  If you all have 
>  any
>  ideas of good dates, please post them.
>
> >>> A bit early maybe, but EclipseCon 2010 is 22nd - 25th of March.
>
> >>> Cheers,
>
> >>> Miles
>
> >>> --
> >>> Miles Sabin
> >>> tel: +44 (0)7813 944 528
> >>> skype:  milessabinhttp://www.chuusai.com/http://twitter.com/milessabin
> > --
> > You received this message because you are subscribed to the Google Groups 
> > "Lift" group.
> > To post to this group, send email to lift...@googlegroups.com.
> > To unsubscribe from this group, send email to 
> > liftweb+unsubscr...@googlegroups.com.
> > For more options, visit this group 
> > athttp://groups.google.com/group/liftweb?hl=en.
>
>
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[Lift] Re: Lift - GAE Version

[Randinn]

The problem as far as I know is the GAE sandboxing inhibits most of
what makes lift, lift.

On Jan 14, 8:56 am, __kaveh__  wrote:
> Introduction: I apologize in advanced for I am naive about Scala, Lift
> and elegant design decisions in Lift. I am a C#/ASP.NET/Windows
> Application developer. I played with Scala and it was the C# I was
> looking for! My job is on .NET platform. But for enjoying something
> (and maybe put into real use later) Scala and Lift are really nice
> choices (IMHO).
>
> Could there be an official GAE (Google App Engine) version of Lift?
>
> It appears that - for some reason I can not figure out; one of them
> for sure is elegance - Lift and Scala are attracting to those who want
> to use GAE/J. This can be a winning/dominated playground for both of
> them (even if we put aside concurrency features in GRE) for those who
> want to use GRE/J.
>
> Regards
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[Lift] Re: Backbutton for Ajax

[greekscala]

Hello,

I would really would like to have this type of support from lift.
I looked at GWT and think this is a nice way. They use url parameters
after a '#'. I dont understand the process because I have very little
javascript knowledge.

But I am thinking, lift is creating unique function names and is
calling them with ajax.
Maybe there is a way to have the functions be called over a way like
GWT?

Just creating some thoughts...

best regards


On 12 Jan., 13:23, greekscala  wrote:
> Hello Timothy,
>
> there is nothing stoping me from using it.
> But when I think of a framework it would be nice to "activate"
> backbutton support.
> I think this is somethink a lot of people would appreciate to have and
> not everybody
> should have to build this from the ground up.
>
> I do not have to deal with this now but in near future. I will have to
> search
> what ways are avalable. And if I can intergrate this im my app, maybe
> we
> can find a way to abstract it.
>
> with best regards
>
> On 12 Jan., 00:35, Timothy Perrett  wrote:
>
> > I'm not sure what is stopping you using something like this in  
> > conjunction with lift?
>
> > If you want something baked in, can you be specific with what and how  
> > you might want it to work?
>
> > Cheers, Tim
>
> > Sent from my iPhone
>
> > On 11 Jan 2010, at 23:13, greekscala  wrote:
>
> > > Hello Alex!
>
> > > I will take a look at sammy.js .
> > > I would like to have some way for this in Lift too.
> > > Since with Lift it is easy to do alot of ajax.
>
> > > with best regards
>
> > > On 11 Jan., 23:05, Alex Boisvert  wrote:
> > >> I've been playing with sammy.js   
> > >> recently
> > >> and I like the way they update the URL fragment identifier (hash)  
> > >> when doing
> > >> AJAX which makes apps more back-button friendly, in a manner that's  
> > >> similar
> > >> to GMail.
>
> > >> It would be nice to have something similar in Lift.
>
> > >> alex
>
> > >> On Mon, Jan 11, 2010 at 4:55 PM, greekscala  
> > >>  wrote:
> > >>> Hello Lift people!
>
> > >>> I would like to know how experienced lift devs think and what they  
> > >>> do
> > >>> about
> > >>> ajax backbutton support.
>
> > >>> with best regards
>
> > >>> --
> > >>> You received this message because you are subscribed to the Google  
> > >>> Groups
> > >>> "Lift" group.
> > >>> To post to this group, send email to lift...@googlegroups.com.
> > >>> To unsubscribe from this group, send email to
> > >>> liftweb+unsubscr...@googlegroups.com > >>> %2bunsubscr...@googlegroups.com>
> > >>> .
> > >>> For more options, visit this group at
> > >>>http://groups.google.com/group/liftweb?hl=en.
> > > --
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> > > liftweb+unsubscr...@googlegroups.com
> > > .
> > > For more options, visit this group 
> > > athttp://groups.google.com/group/liftweb?hl=en
> > > .
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[Lift] Lift - GAE Version

[__kaveh__]

Introduction: I apologize in advanced for I am naive about Scala, Lift
and elegant design decisions in Lift. I am a C#/ASP.NET/Windows
Application developer. I played with Scala and it was the C# I was
looking for! My job is on .NET platform. But for enjoying something
(and maybe put into real use later) Scala and Lift are really nice
choices (IMHO).

Could there be an official GAE (Google App Engine) version of Lift?

It appears that - for some reason I can not figure out; one of them
for sure is elegance - Lift and Scala are attracting to those who want
to use GAE/J. This can be a winning/dominated playground for both of
them (even if we put aside concurrency features in GRE) for those who
want to use GRE/J.

Regards
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[Lift] Re: Parcing Json

[Randinn]

I assume I use the save method but am stumbling on implementing it...

On Jan 11, 5:49 pm, Joni Freeman  wrote:
> Hi,
>
> I'm sorry but I'm not totally sure what you are trying to accomplish.
> What would be the key in that map and what would be its values?
>
> Cheers Joni
>
> On 11 tammi, 03:14, Randinn  wrote:
>
> > I should explain what we are planning, the idea is to get the json
> > file into a string, parse it and save the caught information into a
> > Observation map.
>
> > On Jan 11, 11:23 am, Randinn  wrote:
>
> > > Forgive my ignorance but I was wondering why (json \
> > > "observations").extract[Observation], is it to save as a flat file?
>
> > > On Jan 4, 7:13 am, Randinn  wrote:
>
> > > > I tried some of the changes you made but not all of them, and (json\
> > > > "observations").extract[Observation], I had no idea about that one.
> > > > Thank you very much for your help, it is appreciated.
>
> > > > On Jan 4, 1:00 am, Joni Freeman  wrote:
>
> > > > > Google Groups does not shine in formatting code snippets. Here's nicer
> > > > > version:
>
> > > > >http://paste.pocoo.org/show/161578/
>
> > > > > Cheers Joni
>
> > > > > On 3 tammi, 12:20, Joni Freeman  wrote:
>
> > > > > > Hi,
>
> > > > > > That's almost correct. I did following changes after looking 
> > > > > > intoJSON
> > > > > > content.
>
> > > > > > 1. 'notice' and 'header' areJSONarrays just like 'data'. Therefore:
> > > > > > case class Observation(notice: List[Notice], header: List[Header],
> > > > > > data: List[Data])
>
> > > > > > 2. There's optional data inJSON(some datapoints are nulls and Scala
> > > > > > Int or Double can't take null values). This can be fixed by 
> > > > > > extracting
> > > > > > into Option.
>
> > > > > > 3. The extracted Observation is inJSONfield 'observations'.
> > > > > > Therefore:
> > > > > > (json\ "observations").extract[Observation]
>
> > > > > > Your error stack trace suggests that you have an old version of 
> > > > > > lift-
> > > > > >json. Please upgrade to M8, there was a critical bug in case class
> > > > > > extraction in older versions.
>
> > > > > > Full example which works for me:
>
> > > > > >   implicit val formats = net.liftweb.json.DefaultFormats
> > > > > >   case class Notice(copyright: String, copyright_url: String,
> > > > > > disclaimer_url: String)
> > > > > >   case class Header(refresh_message: String, ID: String, main_ID:
> > > > > > String, name: String, state_time_zone: String, time_zone: String,
> > > > > > product_name: String, state: String)
> > > > > >   case class Data(sort_order: Int, wmo: Int, history_product: 
> > > > > > String,
> > > > > > local_date_time: String,
> > > > > >                   local_date_time_full: String, air_temp: Option
> > > > > > [Double], dewpt: Option[Double], apparent_t: Option[Double],
> > > > > >                   rel_hum: Option[Int], delta_t: Option[Double],
> > > > > > wind_dir: String, wind_spd_kt: Option[Double], gust_kt: Option
> > > > > > [Double],
> > > > > >                   wind_spd_kmh: Option[Double], press: 
> > > > > > Option[Double],
> > > > > > rain_trace: String)
>
> > > > > >   case class Observation(notice: List[Notice], header: List[Header],
> > > > > > data: List[Data])
>
> > > > > >   (json\ "observations").extract[Observation]
>
> > > > > > Cheers Joni
>
> > > > > > On 3 tammi, 09:17, Randinn  wrote:
>
> > > > > > > I'm having a bit of trouble with LiftJsonparcing, I know I'm not
> > > > > > > doing it correctly but looking at the examples I cannot figure out
> > > > > > > what, anyway, here is the code in question. If someone could 
> > > > > > > point
> > > > > > > me in the right direction that would be great, thanks in advance.
>
> > > > > > > class HelloWorld {
> > > > > > >   def howdy = Welcome to hello-lift at {new
> > > > > > > _root_.java.util.Date}
> > > > > > > val http = new Http
> > > > > > > val bos = new ByteArrayOutputStream
> > > > > > > val myRequest = new Request("http://www.bom.gov.au/fwo/IDV60901/
> > > > > > > IDV60901.94868.json")
> > > > > > > val rawdata = http(myRequest >>> bos)
> > > > > > > val bs = bos.toString
> > > > > > > val db = :/("www.bom.gov.au")
>
> > > > > > > valjson= parse(bs)
>
> > > > > > > implicit val formats = net.liftweb.json.DefaultFormats
> > > > > > >   case class Notice(copyright: String, copyright_url: String,
> > > > > > > disclaimer_url: String)
> > > > > > >   case class Header(refresh_message: String, ID: String, main_ID:
> > > > > > > String, name: String, state_time_zone: String,
> > > > > > >                     time_zone: String, product_name: String, 
> > > > > > > state:
> > > > > > > String)
> > > > > > >   case class Data(sort_order: Int, wmo: Int, history_product: 
> > > > > > > String,
> > > > > > > local_date_time: String,
> > > > > > >                   local_date_time_full: Int, air_temp: Double, 
> > > > > > > dewpt:
> > > > > > > Double, apparent_t: Double,
> > > > > > >                   rel_hum: Double, delta_t: Double, wind_dir: 
> 

[Lift] Re: Recommendations for a Web Designer familiar with Lift?

[Timothy Perrett]

Provided they know (and care) about XHTML, any designer can "learn"
lift templates... its one of its major selling points IMHO.
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Re: [Lift] Choose template in a custom Loc

[Naftoli Gugenheim]

Didn't David answer your question the first time you asked it?

-
Mads Hartmann Jensen wrote:

I believe you might be able to solve your problem with a snippet :) Like so;







and in you snippet

Class MySnippet {

def dynamicTemplatePicking(xhtml :NodeSeq) :NodeSeq = {
bind("dynamic", xhtml, AttrBindParam("template", Text("t1 or t2 
would go here"), "with"))
}
}

Disclaimer: This code was written in mail.app and is pretty likely to contain 
errors ;) 


On 13/01/2010, at 20.37, Misha Korablin wrote:

> I'm writing a custom Loc for a page and want to choose a different
> template in  if a certain URL parameter is present.
> 
> Basically, I have a template like this:
> 
> 
> ...
> 
> 
> And at runtime I want to substitute t1 for t2 if necessary and leave
> everything inside  intact.
> 
> How can I do this?
> 
> 
> Misha
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> 

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Re: [Lift] Choose template in a custom Loc

[Mads Hartmann Jensen]

I believe you might be able to solve your problem with a snippet :) Like so;







and in you snippet

Class MySnippet {

def dynamicTemplatePicking(xhtml :NodeSeq) :NodeSeq = {
bind("dynamic", xhtml, AttrBindParam("template", Text("t1 or t2 
would go here"), "with"))
}
}

Disclaimer: This code was written in mail.app and is pretty likely to contain 
errors ;) 


On 13/01/2010, at 20.37, Misha Korablin wrote:

> I'm writing a custom Loc for a page and want to choose a different
> template in  if a certain URL parameter is present.
> 
> Basically, I have a template like this:
> 
> 
> ...
> 
> 
> And at runtime I want to substitute t1 for t2 if necessary and leave
> everything inside  intact.
> 
> How can I do this?
> 
> 
> Misha
> -- 
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> 
> 

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[Lift] Choose template in a custom Loc

[Misha Korablin]

I'm writing a custom Loc for a page and want to choose a different
template in  if a certain URL parameter is present.

Basically, I have a template like this:


...


And at runtime I want to substitute t1 for t2 if necessary and leave
everything inside  intact.

How can I do this?


Misha
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Re: [Lift] Recommendations for a Web Designer familiar with Lift?

[David Pollak]

Joy Reyes: http://www.joyreyes.com/ver5/ is very good and has done a number
of Lift-base sites.

On Wed, Jan 13, 2010 at 6:07 AM, Matyjas  wrote:

>
> Can anyone in the group recommend someone from the creative side (Web
> Design, User Experience, etc.) who is comfortable working with Lift?
>
> I understand that the Lift philosophy allows designers to work their
> magic in the webapps directory, but I would appreciate working with
> someone on the design side who already knows the lay of the land.
>
> Alternatively, what materials would you recommend that a designer
> review before embarking on a Lift project?
>
> Thanks,
>
> Maciej
>
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>
>
>


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Re: [Lift] Recommendations for a Web Designer familiar with Lift?

[Ransford Segu-Baffoe]

As far as materials to review you can try this Exploring Lift at 
http://the-lift-book.googlegroups.com/web/master.pdf?gda=-mLbBTwAAACbVhWZrDVxSOOuy5kZIfXd2VaDqLm8NPJJpAcwXMSJpphQBWRFAWHsPl_3piZ--U79Wm-ajmzVoAFUlE7c_fAt

or you can also buy the book.
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<>

Re: [Lift] Re: Scheduling the San Francisco Scala Lift Off

[Timothy Perrett]

There is an EU meet-up at EPFL in April... thats as good as we are going to get 
(until there is more UK lift following)!

Cheers, Tim

On 13 Jan 2010, at 17:35, Stuart Roebuck wrote:

> Or Edinburgh? :-)
> 
> On Jan 13, 12:22 pm, Mads Hartmann  wrote:
>> Was is 'Scala Lift Off' ?
>> I live in Denmark so i might be able to make it in either London or
>> Norway :)
>> 
>> On Jan 13, 12:32 pm, Miles Sabin  wrote:
>> 
>> 
>> 
>>> On Wed, Jan 13, 2010 at 3:31 AM, David Pollak
>> 
>>>  wrote:
 For the last two years, the San Francisco Scala Lift Off has happened the
 day after JavaOne.  It's looking like JavaOne might not happen this year, 
 so
 I'm starting to think about a time in the April-June timeframe when there
 are a lot of Scala and/or Java folks in San Francisco.  If you all have any
 ideas of good dates, please post them.
>> 
>>> A bit early maybe, but EclipseCon 2010 is 22nd - 25th of March.
>> 
>>> Cheers,
>> 
>>> Miles
>> 
>>> --
>>> Miles Sabin
>>> tel: +44 (0)7813 944 528
>>> skype:  milessabinhttp://www.chuusai.com/http://twitter.com/milessabin
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[Lift] Re: Scheduling the San Francisco Scala Lift Off

[Stuart Roebuck]

Or Edinburgh? :-)

On Jan 13, 12:22 pm, Mads Hartmann  wrote:
> Was is 'Scala Lift Off' ?
> I live in Denmark so i might be able to make it in either London or
> Norway :)
>
> On Jan 13, 12:32 pm, Miles Sabin  wrote:
>
>
>
> > On Wed, Jan 13, 2010 at 3:31 AM, David Pollak
>
> >  wrote:
> > > For the last two years, the San Francisco Scala Lift Off has happened the
> > > day after JavaOne.  It's looking like JavaOne might not happen this year, 
> > > so
> > > I'm starting to think about a time in the April-June timeframe when there
> > > are a lot of Scala and/or Java folks in San Francisco.  If you all have 
> > > any
> > > ideas of good dates, please post them.
>
> > A bit early maybe, but EclipseCon 2010 is 22nd - 25th of March.
>
> > Cheers,
>
> > Miles
>
> > --
> > Miles Sabin
> > tel: +44 (0)7813 944 528
> > skype:  milessabinhttp://www.chuusai.com/http://twitter.com/milessabin
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Re: [Lift] MappedForeignKey compared to Hibernate relationships

[Naftoli Gugenheim]

Is LongMappedMapper now superfluous?

-
David Pollak wrote:

On Wed, Jan 13, 2010 at 8:06 AM, Guy  wrote:

> hi all,
>
> stupid question about MappedForeignKey - it seems that it must be
> interacted with by setting the value with the actual key (as opposed
> to the 'object' that the key belongs to).  is there an equivalent so
> that the value can be set with the actual object (a la Hibernate)?
>
> i arrived at this in a roundabout way - i'm trying to validate a form
> field against another form field that maps to an object - both fields
> are being updated.  during the validation phase, the key value in the
> MappedForeignKey has been updated (x.is) but x.obj is still caching
> the 'old' value.  is there a way around this (apart from just doing a
> lookup against the new key)?
>

Sounds like you're using Lift 1.0  This behavior was changed around Lift 1.1
M6.


>
> cheers
>
> --
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>
>
>
>


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Re: [Lift] MappedForeignKey compared to Hibernate relationships

[David Pollak]

On Wed, Jan 13, 2010 at 8:06 AM, Guy  wrote:

> hi all,
>
> stupid question about MappedForeignKey - it seems that it must be
> interacted with by setting the value with the actual key (as opposed
> to the 'object' that the key belongs to).  is there an equivalent so
> that the value can be set with the actual object (a la Hibernate)?
>
> i arrived at this in a roundabout way - i'm trying to validate a form
> field against another form field that maps to an object - both fields
> are being updated.  during the validation phase, the key value in the
> MappedForeignKey has been updated (x.is) but x.obj is still caching
> the 'old' value.  is there a way around this (apart from just doing a
> lookup against the new key)?
>

Sounds like you're using Lift 1.0  This behavior was changed around Lift 1.1
M6.


>
> cheers
>
> --
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> .
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> http://groups.google.com/group/liftweb?hl=en.
>
>
>
>


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[Lift] MappedForeignKey compared to Hibernate relationships

[Guy]

hi all,

stupid question about MappedForeignKey - it seems that it must be
interacted with by setting the value with the actual key (as opposed
to the 'object' that the key belongs to).  is there an equivalent so
that the value can be set with the actual object (a la Hibernate)?

i arrived at this in a roundabout way - i'm trying to validate a form
field against another form field that maps to an object - both fields
are being updated.  during the validation phase, the key value in the
MappedForeignKey has been updated (x.is) but x.obj is still caching
the 'old' value.  is there a way around this (apart from just doing a
lookup against the new key)?

cheers
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[Lift] Re: binding form fields while using jquery plugin

[Madhav]

Thanks Naftoli and Marius .
I got it working using both of your suggestions.
Madhav

On Jan 13, 2:00 pm, Madhav  wrote:
> hi marius,
>
> I tried using -%> but it says value -%> is not a member of
> java.lang.String.
> Actually what i am trying to achieve is to make a web page in which
> there are some text fields as Text1,Text2,Result
> so that when user types some number in Text1 and Text2 their addition
> appears dynamically  in Result textfield(without submitting the form).
> I am using jquery plugin for doing this and it was working fine in
> simple html format but when i try to run the template using lift the
> calculation does'nt occurs (demo of this plugin working  can be seen
> under interactive example heading on 
> pagehttp://www.pengoworks.com/workshop/jquery/calculation/calculation.plu...)
> so Naftoli has helped me out in this and i am working on solution he
> suggested .If you have any suggestion or ideas they are also welcomed.
>
> madhav
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Re: [Lift] Re: Binding a snippet in a comet actor?

[Felipe Rodrigues]

The problem was using Google Chrome to see this page. On firefox it
shows up normally.


Alex Boisvert wrote:
Yes.  
  
The issue is here: http://github.com/dpp/liftweb/issues/closed/#issue/93
  
It was fixed in 1.1M7 and later.
  
alex
  
  
  On Tue, Jan 12, 2010 at 1:47 PM, Felipe
Rodrigues 
wrote:
  

I have a similar problem here. I didn't
find
this issue on github.
Is this issue solved?

Thanks,

Felipe


On Oct 9 2009, 5:17 pm, David Pollak 
  
wrote:
  > This is a defect.  I've opened a ticket:http://github.com/dpp/liftweb/issues#issue/93
> I'll have a fix checked in later today
>
> On Fri, Oct 9, 2009 at 1:02 AM, Somindra Bhattacharya
  
  
> wrote:
>
>
>
>
>
>
>
> > David,
>
> > Thanks for responding.
>
> > I have hosted the example athttp://174.129.214.150:8080/
>
> > The code is athttp://174.129.214.150:8080/dynamicForm.tar.gz
  
  >
> > Here are the steps to reproduce the issue:
>
  
  
> > 1. Openhttp://174.129.214.150:8080/in
a browser window. This
starts
  
  > > a comet actor which listens for messages.
There is no form present on
> > this page.
>
  
  
> > 2. Openhttp://174.129.214.150:8080/testdriverin
another browser
  
  
  
  > > window. Juxtapose these two windows.
>
> > 3. Click on the "Click here" button in the window opened in
(2).
> > Submitting this form results into a 
block being sent to
> > the actor on the index page. This makes the index page show a
form
> > that was not previously present.
>
> > 4. Click on the button that has appeared on the index page.
This does
> > not result into calling the handler at the server end.
>
> > Please let me know if you need more information.
>
> > Thanks again...
>
> > Regards,
> > Som
>
> > On Oct 8, 9:40 pm, David Pollak 
wrote:
> > > The chat example in demo.liftweb.net
(source in examples/example) has a
> > form
> > > that is presented after the initial form is rendered.
 It works just
> > fine.
> > > Please put together a small example of the failure so I
can see the
> > running
> > > code.
>
> > > On Wed, Oct 7, 2009 at 9:13 PM, Somindra Bhattacharya
> > > wrote:
>
> > > > Apologies for bumping this.
>
> > > > Is there a way to get the submit button (or an
ajaxButton) to work if
> > > > the snippet which was not originally part of the
page is bound by a
> > > > comet actor?
>
> > > > Thanks,
> > > > Som
>
> > > > On Oct 7, 12:32 pm, Somindra  Bhattacharya 
> > > > wrote:
> > > > > Thanks for responding, Naftoli.
>
> > > > > I tried changing the code to:
>
> > > > >     def handleSubmit() =
> > > > >     {
> > > > >       Log.info("GOT A SUBMIT IN INVITE")
> > > > >      
net.liftweb.http.js.JsCmds.Run("alert('Hey')")
> > > > >     }
>
> > > > >     ajaxForm(
> > > > >       bind("elem", xhtml,
> > > > >            "submit" -> submit("Click", ()
=> handleSubmit() ),
> > > > >          ) ++ hidden(() => handleSubmit())
> > > > >     )
>
> > > > > The handleSubmit method is still not called. I
tried using ajaxButton
> > > > > instead of submit but that did not help either.
>
> > > > > What am I doing wrong?
>
> > > > > On Oct 7, 5:06 am, Naftoli Gugenheim  wrote:
>
> > > > > > What about an Ajax form?
>
> > > > > > On Tue, Oct 6, 2009 at 9:52 AM, Somindra
 Bhattacharya
>
> > > > > > 
wrote:
>
> > > > > > > Hi Everyone,
>
> > > > > > > I have a comet actor that binds
XHTML. The XHTML corresponds to a
> > > > > > > snippet:
>
> > > > > > > XHTML for comet actor ->
>
> > > > > > >  
> > > > > > >    
> > > > > > >  
>
> > > > > > > When the comet actor receives a
certain message, the render
> > method of
> > > > > > > the comet actor binds the following
XHTML ->
>
> > > > > > >    
> > > > > > >       
> > > > > > >    
>
> > > > > > > The Discuss snippet's "invite"
method definition is:
>
> > > > > > >  def invite(xhtml: NodeSeq): NodeSeq
=
> > > > > > >  {
>
> > > > > > >     def handleSubmit() =
> > > > > > >     {
> > > > > > >        Log.info("GOT A SUBMIT IN
INVITE")
> > > > > > >     }
>
> > > > > > >     bind("elem", xhtml,
> > > > > > >         "submit" ->
submit("Click", () => handleSubmit()))
> > > > > > >  }
>
> > > > > > > The page does not contain this form
when it is first loaded. When
> > the
> > > > > > > actor receives a certain message, it
binds the XHTML
> > (Discuss.invite)
> > > > > > > to the page and the form and the
"submit" button are rendered
> > > > > > > properly.
>
> > > > > > > However, when I click on the submit
button, the "handleSubmit"
> > method
> > > > > > > is not called. Instead, the browser
displays a page with the text
> > > > > > > "window.location=/".
> > > > > > > If I use the browser back button and
re-visit the page with the
> > comet
> > > > > > > actor, the submit button works
(i.e., handleSubmit() is called

[Lift] Re: Externalizing log4j configuration

[Mark Feeney]

(Apologies for the very late reply.)

> -Dlog4j.configuration={file URL} ?

Thanks!  This seems to do pretty much exactly what I need (that is:
full control over logging).


Mark.
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[Lift] Re: Recommendations for a Web Designer familiar with Lift?

[Mads Hartmann]

Sorry I got your name wrong, wasn't my intention :)

On Jan 13, 4:00 pm, Mads Hartmann Jensen  wrote:
> Hello Maceij
>
> As I see it desgining and creating the acctual template is two completely 
> different tasks which rarely are done by the same person.
>
> When i work on projects the designer usally works his/her magic and creates a 
> stunning Photoshop file which is then handed to a front-end developer who in 
> turn slices the photoshop file into appropiate sprites and creates the xhtml 
> templates.
>
> So you find a designer who is able to design a site to your satisfaction and 
> find a front-end developer to implement it after.
>
> Any think that any front-end developer would do acctualy so just do a google 
> search 
> (http://www.google.dk/search?hl=da&rlz=1G1GGLQ_DADK251&ei=899NS5uiC9S_...) - 
> I recommend that the front-end developer reads 
> thishttp://wiki.github.com/dpp/liftweb/how-to-binding-view-content-to-codeand 
> probably a few other articles on the wiki to get a grasp of what is expected 
> of him/her :)
>
> Hope this is to some help
>
> On 13/01/2010, at 15.07, Matyjas wrote:
>
>
>
>
>
> > Can anyone in the group recommend someone from the creative side (Web
> > Design, User Experience, etc.) who is comfortable working with Lift?
>
> > I understand that the Lift philosophy allows designers to work their
> > magic in the webapps directory, but I would appreciate working with
> > someone on the design side who already knows the lay of the land.
>
> > Alternatively, what materials would you recommend that a designer
> > review before embarking on a Lift project?
>
> > Thanks,
>
> > Maciej
> > --
> > You received this message because you are subscribed to the Google Groups 
> > "Lift" group.
> > To post to this group, send email to lift...@googlegroups.com.
> > To unsubscribe from this group, send email to 
> > liftweb+unsubscr...@googlegroups.com.
> > For more options, visit this group 
> > athttp://groups.google.com/group/liftweb?hl=en.
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[Lift] Re: NGinx and sticky sessions

[Marius]

No I'm not using JSESSIONID because in my app (non lift) I'm not using
container's session management.

But thanks for the HA proxy tip.

Br's,
Marius

On Jan 13, 4:54 pm, Alex Boisvert  wrote:
> I'm not sure if you discussed this but based on my experience, the
> JSESSIONID cookie is used most often in Jetty/Tomcat/J2EE environments for
> load balancing (over using client IP).
>
> I haven't used nginx for load balancing yet but I've used both HAProxy and
> Varnish in the past.
>
> http://haproxy.1wt.eu/download/1.2/doc/architecture.txt
>
> alex
>
> On Wed, Jan 13, 2010 at 4:22 AM, Timothy Perrett 
> wrote:
>
> > To follow up this thread for completeness, I communicated to Marius that he
> > needs to use:
>
> >http://wiki.nginx.org/NginxHttpUpstreamRequestHashModule
>
> > Which should do what he wants.
>
> > Cheers, Tim
>
> > On 13 Jan 2010, at 12:02, Marius wrote:
>
> > > On Jan 13, 1:42 pm, Timothy Perrett  wrote:
> > >> Nginx offers weighted round robin requests if memory serves... what does
> > your config look like? The upstream module should be cool for what you want.
>
> > >>http://wiki.nginx.org/NginxHttpUpstreamModule
>
> > >> See that it uses class-c ip hashing to always distribute requests to the
> > same backend node... making the query string redundant :-)
>
> > > I'm not sure about that. The flow I have is this:
>
> > > 1. client sends a login request with not server_id info.
> > > 2. LB needs to dispatch to any node
> > > 3. The node that responds back is setting the server_id information in
> > > the HTTP response header (based on config files info from each node)
> > > 4. The next subsequent requests for this session will also include the
> > > server_id information received and here is the balancing rules I
> > > need.
>
> > > I'm not sure I should use client's IP address because clients may be
> > > behind NATs etc. and this may unbalance the cluster.
>
> > > Currently I have no config, so I'm still not sure how to config my
> > > case described here.
>
> > >> Cheers, Tim
>
> > >> On 13 Jan 2010, at 11:29, Marius wrote:
>
> > >>> Hi all,
>
> > >>> Did anyone here used nginx with sticky sessions? What I'm looking for
> > >>> is:
>
> > >>> if a request comes in with e certain HTTP header or query string
> > >>> paramers the request should be dispatched to a given node. So I have a
> > >>> header like server_id=1 -> dispatch the request to node1, if
> > >>> server_id=2 dispatch the request to node2 and so on.
>
> > >>> Is it possible to configure nginx like this?
>
> > >>> Br's,
> > >>> Marius
> > >>> --
> > >>> You received this message because you are subscribed to the Google
> > Groups "Lift" group.
> > >>> To post to this group, send email to lift...@googlegroups.com.
> > >>> To unsubscribe from this group, send email to
> > liftweb+unsubscr...@googlegroups.com
> > .
> > >>> For more options, visit this group athttp://
> > groups.google.com/group/liftweb?hl=en.
> > > --
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>
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Re: [Lift] Recommendations for a Web Designer familiar with Lift?

[Mads Hartmann Jensen]

Hello Maceij 

As I see it desgining and creating the acctual template is two completely 
different tasks which rarely are done by the same person. 

When i work on projects the designer usally works his/her magic and creates a 
stunning Photoshop file which is then handed to a front-end developer who in 
turn slices the photoshop file into appropiate sprites and creates the xhtml 
templates. 

So you find a designer who is able to design a site to your satisfaction and 
find a front-end developer to implement it after. 

Any think that any front-end developer would do acctualy so just do a google 
search 
(http://www.google.dk/search?hl=da&rlz=1G1GGLQ_DADK251&ei=899NS5uiC9S_-Qb9paGBDQ&sa=X&oi=spell&resnum=0&ct=result&cd=1&ved=0CAYQBSgA&q=freelance+frontend+developer&spell=1)
 - I recommend that the front-end developer reads this 
http://wiki.github.com/dpp/liftweb/how-to-binding-view-content-to-code and 
probably a few other articles on the wiki to get a grasp of what is expected of 
him/her :) 

Hope this is to some help

On 13/01/2010, at 15.07, Matyjas wrote:

> 
> Can anyone in the group recommend someone from the creative side (Web
> Design, User Experience, etc.) who is comfortable working with Lift?
> 
> I understand that the Lift philosophy allows designers to work their
> magic in the webapps directory, but I would appreciate working with
> someone on the design side who already knows the lay of the land.
> 
> Alternatively, what materials would you recommend that a designer
> review before embarking on a Lift project?
> 
> Thanks,
> 
> Maciej
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Lift" group.
> To post to this group, send email to lift...@googlegroups.com.
> To unsubscribe from this group, send email to 
> liftweb+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/liftweb?hl=en.
> 
> 

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Re: [Lift] Re: NGinx and sticky sessions

[Alex Boisvert]

I'm not sure if you discussed this but based on my experience, the
JSESSIONID cookie is used most often in Jetty/Tomcat/J2EE environments for
load balancing (over using client IP).

I haven't used nginx for load balancing yet but I've used both HAProxy and
Varnish in the past.

http://haproxy.1wt.eu/download/1.2/doc/architecture.txt

alex


On Wed, Jan 13, 2010 at 4:22 AM, Timothy Perrett wrote:

> To follow up this thread for completeness, I communicated to Marius that he
> needs to use:
>
> http://wiki.nginx.org/NginxHttpUpstreamRequestHashModule
>
> Which should do what he wants.
>
> Cheers, Tim
>
> On 13 Jan 2010, at 12:02, Marius wrote:
>
> >
> >
> > On Jan 13, 1:42 pm, Timothy Perrett  wrote:
> >> Nginx offers weighted round robin requests if memory serves... what does
> your config look like? The upstream module should be cool for what you want.
> >>
> >> http://wiki.nginx.org/NginxHttpUpstreamModule
> >>
> >> See that it uses class-c ip hashing to always distribute requests to the
> same backend node... making the query string redundant :-)
> >
> > I'm not sure about that. The flow I have is this:
> >
> > 1. client sends a login request with not server_id info.
> > 2. LB needs to dispatch to any node
> > 3. The node that responds back is setting the server_id information in
> > the HTTP response header (based on config files info from each node)
> > 4. The next subsequent requests for this session will also include the
> > server_id information received and here is the balancing rules I
> > need.
> >
> > I'm not sure I should use client's IP address because clients may be
> > behind NATs etc. and this may unbalance the cluster.
> >
> > Currently I have no config, so I'm still not sure how to config my
> > case described here.
> >
> >>
> >> Cheers, Tim
> >>
> >> On 13 Jan 2010, at 11:29, Marius wrote:
> >>
> >>> Hi all,
> >>
> >>> Did anyone here used nginx with sticky sessions? What I'm looking for
> >>> is:
> >>
> >>> if a request comes in with e certain HTTP header or query string
> >>> paramers the request should be dispatched to a given node. So I have a
> >>> header like server_id=1 -> dispatch the request to node1, if
> >>> server_id=2 dispatch the request to node2 and so on.
> >>
> >>> Is it possible to configure nginx like this?
> >>
> >>> Br's,
> >>> Marius
> >>> --
> >>> You received this message because you are subscribed to the Google
> Groups "Lift" group.
> >>> To post to this group, send email to lift...@googlegroups.com.
> >>> To unsubscribe from this group, send email to
> liftweb+unsubscr...@googlegroups.com
> .
> >>> For more options, visit this group athttp://
> groups.google.com/group/liftweb?hl=en.
> > --
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> "Lift" group.
> > To post to this group, send email to lift...@googlegroups.com.
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> >
> >
>
>
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>
>
>
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[Lift] Recommendations for a Web Designer familiar with Lift?

[Matyjas]

Can anyone in the group recommend someone from the creative side (Web
Design, User Experience, etc.) who is comfortable working with Lift?

I understand that the Lift philosophy allows designers to work their
magic in the webapps directory, but I would appreciate working with
someone on the design side who already knows the lay of the land.

Alternatively, what materials would you recommend that a designer
review before embarking on a Lift project?

Thanks,

Maciej
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[Lift] Re: Two database are broken in 1.1-M8, works fine in 1.1-M7 .

[Neil.Lv]

Hi David,

   I'm sorry about it that i write it wrong.

   But I change the second DBVendor name to DBVendor_2, and it create
a db file named "lift_proto2.db.h2.db".
And it doesn't work, I add this method to the User model to specify
the default db connection.

###
override def dbDefaultConnectionIdentifier = bootstrap.liftweb.OneDB
###

   I use this code in M7 and it's fine.

   How can i define a vendor for the DefaultConnectionIdentifier in
M8?

   Thank you very much!

Cheers,
  Neil

On Jan 13, 1:35 pm, David Pollak 
wrote:
> The problem with this code is you are using the same connection vendor
> for both connection identifiers *and* you're not defining a vendor for
> the DefaultConnectionIdentifier
>
> On Jan 11, 7:05 am, "Neil.Lv"  wrote:
>
> > Hi all,
>
> >    There is a problem when i upgrading the 1.1-M7 to 1.1-M8, the db
> > connection is broken.
>
> >    I use two database connection in my app, it's broken in 1.1-M8.
> > ###
> > object OneDB extends ConnectionIdentifier {
> >  override def jndiName = "lift_proto"}
>
> > object TwoDB extends ConnectionIdentifier {
> >  override def jndiName = "lift_proto2"}
>
> > ###
>
> >    The error message is:
> > ###
> > HTTP ERROR 500
>
> > Problem accessing /. Reason:
>
> >     Looking for Connection Identifier ConnectionIdentifier(lift) but
> > failed to find either a JNDI data source with the name lift or a lift
> > connection manager with the correct name
> > ###
>
> >   Maybe I missing something else configure in M8 that it's different
> > from M7.
>
> >   The test demo address is :http://github.com/anim510/two_db_demo
>
> >   Thanks for any help very much!
>
> > Cheers,
> >   Neil
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Re: [Lift] Re: NGinx and sticky sessions

[Timothy Perrett]

To follow up this thread for completeness, I communicated to Marius that he 
needs to use:

http://wiki.nginx.org/NginxHttpUpstreamRequestHashModule

Which should do what he wants. 

Cheers, Tim

On 13 Jan 2010, at 12:02, Marius wrote:

> 
> 
> On Jan 13, 1:42 pm, Timothy Perrett  wrote:
>> Nginx offers weighted round robin requests if memory serves... what does 
>> your config look like? The upstream module should be cool for what you want.
>> 
>> http://wiki.nginx.org/NginxHttpUpstreamModule
>> 
>> See that it uses class-c ip hashing to always distribute requests to the 
>> same backend node... making the query string redundant :-)
> 
> I'm not sure about that. The flow I have is this:
> 
> 1. client sends a login request with not server_id info.
> 2. LB needs to dispatch to any node
> 3. The node that responds back is setting the server_id information in
> the HTTP response header (based on config files info from each node)
> 4. The next subsequent requests for this session will also include the
> server_id information received and here is the balancing rules I
> need.
> 
> I'm not sure I should use client's IP address because clients may be
> behind NATs etc. and this may unbalance the cluster.
> 
> Currently I have no config, so I'm still not sure how to config my
> case described here.
> 
>> 
>> Cheers, Tim
>> 
>> On 13 Jan 2010, at 11:29, Marius wrote:
>> 
>>> Hi all,
>> 
>>> Did anyone here used nginx with sticky sessions? What I'm looking for
>>> is:
>> 
>>> if a request comes in with e certain HTTP header or query string
>>> paramers the request should be dispatched to a given node. So I have a
>>> header like server_id=1 -> dispatch the request to node1, if
>>> server_id=2 dispatch the request to node2 and so on.
>> 
>>> Is it possible to configure nginx like this?
>> 
>>> Br's,
>>> Marius
>>> --
>>> You received this message because you are subscribed to the Google Groups 
>>> "Lift" group.
>>> To post to this group, send email to lift...@googlegroups.com.
>>> To unsubscribe from this group, send email to 
>>> liftweb+unsubscr...@googlegroups.com.
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[Lift] Re: NGinx and sticky sessions

[Marius]

Tim,

Thanks SO MUCH about the info from the offline talk we've had. If
other are interested, this may be helpful: 
http://wiki.nginx.org/NginxHttpUpstreamRequestHashModule

Br's,
Marius

On Jan 13, 2:02 pm, Marius  wrote:
> On Jan 13, 1:42 pm, Timothy Perrett  wrote:
>
> > Nginx offers weighted round robin requests if memory serves... what does 
> > your config look like? The upstream module should be cool for what you want.
>
> >http://wiki.nginx.org/NginxHttpUpstreamModule
>
> > See that it uses class-c ip hashing to always distribute requests to the 
> > same backend node... making the query string redundant :-)
>
> I'm not sure about that. The flow I have is this:
>
> 1. client sends a login request with not server_id info.
> 2. LB needs to dispatch to any node
> 3. The node that responds back is setting the server_id information in
> the HTTP response header (based on config files info from each node)
> 4. The next subsequent requests for this session will also include the
> server_id information received and here is the balancing rules I
> need.
>
> I'm not sure I should use client's IP address because clients may be
> behind NATs etc. and this may unbalance the cluster.
>
> Currently I have no config, so I'm still not sure how to config my
> case described here.
>
>
>
> > Cheers, Tim
>
> > On 13 Jan 2010, at 11:29, Marius wrote:
>
> > > Hi all,
>
> > > Did anyone here used nginx with sticky sessions? What I'm looking for
> > > is:
>
> > > if a request comes in with e certain HTTP header or query string
> > > paramers the request should be dispatched to a given node. So I have a
> > > header like server_id=1 -> dispatch the request to node1, if
> > > server_id=2 dispatch the request to node2 and so on.
>
> > > Is it possible to configure nginx like this?
>
> > > Br's,
> > > Marius
> > > --
> > > You received this message because you are subscribed to the Google Groups 
> > > "Lift" group.
> > > To post to this group, send email to lift...@googlegroups.com.
> > > To unsubscribe from this group, send email to 
> > > liftweb+unsubscr...@googlegroups.com.
> > > For more options, visit this group 
> > > athttp://groups.google.com/group/liftweb?hl=en.
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[Lift] Re: Scheduling the San Francisco Scala Lift Off

[Mads Hartmann]

Was is 'Scala Lift Off' ?
I live in Denmark so i might be able to make it in either London or
Norway :)

On Jan 13, 12:32 pm, Miles Sabin  wrote:
> On Wed, Jan 13, 2010 at 3:31 AM, David Pollak
>
>  wrote:
> > For the last two years, the San Francisco Scala Lift Off has happened the
> > day after JavaOne.  It's looking like JavaOne might not happen this year, so
> > I'm starting to think about a time in the April-June timeframe when there
> > are a lot of Scala and/or Java folks in San Francisco.  If you all have any
> > ideas of good dates, please post them.
>
> A bit early maybe, but EclipseCon 2010 is 22nd - 25th of March.
>
> Cheers,
>
> Miles
>
> --
> Miles Sabin
> tel: +44 (0)7813 944 528
> skype:  milessabinhttp://www.chuusai.com/http://twitter.com/milessabin
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Re: [Lift] Re: Show the deprecated messages

[GA]

It worked! 
Thanks,

GA


On Jan 13, 2010, at 11:37 AM, Timothy Perrett wrote:

> Something like:
> 
> 
>  
>org.scala-tools
>maven-scala-plugin
>2.12.2
>
>  
>-Xmx1024m
>  
>  
>-unchecked
>-deprecation
>-Xno-varargs-conversion
>  
>
>
>  
> 
> On Jan 13, 10:01 am, GA  wrote:
>> Hello guys,
>> 
>> I have a very silly question.
>> 
>> when I run the mvn command to compile the classes, I receive the following 
>> message:
>> 
>> warning: there were deprecation warnings; re-run with -deprecation for 
>> details
>> one warning found
>> 
>> How can I do to see the messages? I tried to add -deprecation to the mvn 
>> command but it does not recognize it.
>> 
>> Thanks in advance,
>> 
>> GA
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> 

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[Lift] Re: NGinx and sticky sessions

[Marius]

On Jan 13, 1:42 pm, Timothy Perrett  wrote:
> Nginx offers weighted round robin requests if memory serves... what does your 
> config look like? The upstream module should be cool for what you want.
>
> http://wiki.nginx.org/NginxHttpUpstreamModule
>
> See that it uses class-c ip hashing to always distribute requests to the same 
> backend node... making the query string redundant :-)

I'm not sure about that. The flow I have is this:

1. client sends a login request with not server_id info.
2. LB needs to dispatch to any node
3. The node that responds back is setting the server_id information in
the HTTP response header (based on config files info from each node)
4. The next subsequent requests for this session will also include the
server_id information received and here is the balancing rules I
need.

I'm not sure I should use client's IP address because clients may be
behind NATs etc. and this may unbalance the cluster.

Currently I have no config, so I'm still not sure how to config my
case described here.

>
> Cheers, Tim
>
> On 13 Jan 2010, at 11:29, Marius wrote:
>
> > Hi all,
>
> > Did anyone here used nginx with sticky sessions? What I'm looking for
> > is:
>
> > if a request comes in with e certain HTTP header or query string
> > paramers the request should be dispatched to a given node. So I have a
> > header like server_id=1 -> dispatch the request to node1, if
> > server_id=2 dispatch the request to node2 and so on.
>
> > Is it possible to configure nginx like this?
>
> > Br's,
> > Marius
> > --
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Re: [Lift] NGinx and sticky sessions

[Timothy Perrett]

Nginx offers weighted round robin requests if memory serves... what does your 
config look like? The upstream module should be cool for what you want.

http://wiki.nginx.org/NginxHttpUpstreamModule

See that it uses class-c ip hashing to always distribute requests to the same 
backend node... making the query string redundant :-)

Cheers, Tim

On 13 Jan 2010, at 11:29, Marius wrote:

> Hi all,
> 
> Did anyone here used nginx with sticky sessions? What I'm looking for
> is:
> 
> if a request comes in with e certain HTTP header or query string
> paramers the request should be dispatched to a given node. So I have a
> header like server_id=1 -> dispatch the request to node1, if
> server_id=2 dispatch the request to node2 and so on.
> 
> Is it possible to configure nginx like this?
> 
> Br's,
> Marius
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> 
> 

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Re: [Lift] Squid with lift?

[Timothy Perrett]

Only if you want a caching proxy im not sure what your driving at really as 
the nginx wiki does a pretty good job of explaining what it is used for. 

We only really recommend NGINX because its what we use, however, you are free 
to use whatever you want... jetty standalone, some other proxy upfront like 
helicon or whatever. Your setup can be anything - its what works for you.

Cheers, Tim

On 13 Jan 2010, at 02:14, Naftoli Gugenheim wrote:

> Does that at all imply that it could be beneficial to use Squid instead of 
> Nginx with Lift?
> 

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Re: [Lift] Scheduling the San Francisco Scala Lift Off

[Miles Sabin]

On Wed, Jan 13, 2010 at 3:31 AM, David Pollak
 wrote:
> For the last two years, the San Francisco Scala Lift Off has happened the
> day after JavaOne.  It's looking like JavaOne might not happen this year, so
> I'm starting to think about a time in the April-June timeframe when there
> are a lot of Scala and/or Java folks in San Francisco.  If you all have any
> ideas of good dates, please post them.

A bit early maybe, but EclipseCon 2010 is 22nd - 25th of March.

Cheers,


Miles

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[Lift] NGinx and sticky sessions

[Marius]

Hi all,

Did anyone here used nginx with sticky sessions? What I'm looking for
is:

if a request comes in with e certain HTTP header or query string
paramers the request should be dispatched to a given node. So I have a
header like server_id=1 -> dispatch the request to node1, if
server_id=2 dispatch the request to node2 and so on.

Is it possible to configure nginx like this?

Br's,
Marius
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[Lift] Re: Show the deprecated messages

[Timothy Perrett]

Something like:


  
org.scala-tools
maven-scala-plugin
2.12.2

  
-Xmx1024m
  
  
-unchecked
-deprecation
-Xno-varargs-conversion
  


  

On Jan 13, 10:01 am, GA  wrote:
> Hello guys,
>
> I have a very silly question.
>
> when I run the mvn command to compile the classes, I receive the following 
> message:
>
> warning: there were deprecation warnings; re-run with -deprecation for details
> one warning found
>
> How can I do to see the messages? I tried to add -deprecation to the mvn 
> command but it does not recognize it.
>
> Thanks in advance,
>
> GA
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[Lift] Show the deprecated messages

[GA]

Hello guys,

I have a very silly question.

when I run the mvn command to compile the classes, I receive the following 
message:

warning: there were deprecation warnings; re-run with -deprecation for details
one warning found

How can I do to see the messages? I tried to add -deprecation to the mvn 
command but it does not recognize it.

Thanks in advance,

GA

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Re: [Lift] Re: Ajax button + submitting a form

[Adam Warski]

Also, interestingly, if you change the order of binding from:

bind("cont", containerTemplate,
  "name" -> { println("bind container name " + cont.name); 
SHtml.text(cont.name,
  (s: String) => {println("set container name " + s); cont.name = 
s; }) },
  "rooms" -> editRoom _,
  "addRoom" -> ajaxButton(Text("Add"), "cont_edit",
() => { println("executing funtion"); cont.rooms += new Room; reDraw })
  )

to:

bind("cont", containerTemplate,
  "rooms" -> editRoom _,
  "addRoom" -> ajaxButton(Text("Add"), "cont_edit",
() => { println("executing funtion"); cont.rooms += new Room; reDraw }),
  "name" -> { println("bind container name " + cont.name); 
SHtml.text(cont.name,
  (s: String) => {println("set container name " + s); cont.name = 
s; }) }
  )

then the container name is also lost on submit. The log output is then:

executing funtion
bind container name 
bind room name 
bind room name 
set container name container
set room name room

Adam

On Jan 13, 2010, at 10:13 AM, Adam Warski wrote:

> Hello,
> 
>> Yes please a small app would be best. Please use 2.0-SNAPSHOT.
> 
> Here it is:
> http://github.com/adamw/lift-ajax-submit-test/
> 
> Steps to reproduce:
> 1. checkout from git :)
> 2. run mvn jetty:run
> 3. go to http://localhost:8080
> 4. click "add" once
> 5. fill in the two fields with some values e.g. "container", "room"
> 6. click add again
> 7. the "container" value will stay, while the "room" value will disappear. In 
> the logs, you can see:
> 
> set container name cont
> executing funtion
> bind container name cont
> bind room name 
> bind room name 
> set room name room
> 
>> Also please see this thread: 
>> http://groups.google.com/group/liftweb/browse_thread/thread/75750c42ec3a2d7d?hl=en#
> Yeah, I saw it, as far as I understand the ajaxSubmit is more or less the 
> same as the ajaxButton you did (and I corrected)?
> 
> Thanks,
> Adam-- 
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Re: [Lift] Re: Ajax button + submitting a form

[Adam Warski]

Hello,

> Yes please a small app would be best. Please use 2.0-SNAPSHOT.

Here it is:
http://github.com/adamw/lift-ajax-submit-test/

Steps to reproduce:
1. checkout from git :)
2. run mvn jetty:run
3. go to http://localhost:8080
4. click "add" once
5. fill in the two fields with some values e.g. "container", "room"
6. click add again
7. the "container" value will stay, while the "room" value will disappear. In 
the logs, you can see:

set container name cont
executing funtion
bind container name cont
bind room name 
bind room name 
set room name room

> Also please see this thread: 
> http://groups.google.com/group/liftweb/browse_thread/thread/75750c42ec3a2d7d?hl=en#
Yeah, I saw it, as far as I understand the ajaxSubmit is more or less the same 
as the ajaxButton you did (and I corrected)?

Thanks,
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[Lift] Re: binding form fields while using jquery plugin

[Madhav]

hi marius,

I tried using -%> but it says value -%> is not a member of
java.lang.String.
Actually what i am trying to achieve is to make a web page in which
there are some text fields as Text1,Text2,Result
so that when user types some number in Text1 and Text2 their addition
appears dynamically  in Result textfield(without submitting the form).
I am using jquery plugin for doing this and it was working fine in
simple html format but when i try to run the template using lift the
calculation does'nt occurs (demo of this plugin working  can be seen
under interactive example heading on page
http://www.pengoworks.com/workshop/jquery/calculation/calculation.plu...)
so Naftoli has helped me out in this and i am working on solution he
suggested .If you have any suggestion or ideas they are also welcomed.

madhav
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[Lift] Re: binding form fields while using jquery plugin

[Madhav]

hi marius,

I tried using -%> but it says value %-> is not a member of
java.lang.String.
Actually what i am trying to achieve is to make a web page in which
there are some text fields as Text1,Text2,Result
so that when user types some number in Text1 and Text2 their addition
appears dynamically  in Result textfield(without submitting the form).
I am using jquery plugin for doing this and it was working fine in
simple html format but when i try to run the template using lift the
calculation does'nt occurs (demo of this plugin working  can be seen
under interactive example heading on page
http://www.pengoworks.com/workshop/jquery/calculation/calculation.plugin.htm)
so Naftoli has helped me out in this and i am working on solution he
suggested .If you have any suggestion or ideas they are also welcomed.

madhav
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Re: [Lift] Loc id

[Jeppe Nejsum Madsen]

Naftoli Gugenheim  writes:

> The first argument to Loc is a unique id for the menu. Is it used anywhere?



/Jeppe
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[Lift] Re: SessionVar that loses it contents

[Marius]

I think you can override:

override protected def setFunc(name: String, value: T): Unit

put a trace there and then call super.

Br's,
Marius

On Jan 13, 10:06 am, Juha Syrjälä  wrote:
> I am using only one tab.  The app itself is rather simple, it just
> contains forms where fields are submitted to objects stored in
> SessionVar.
>
> I'll try the thing you suggested later today.
>
> Is there a some way I could add some logging to sessionVar when it's
> value is changed?
>
> On Jan 13, 9:40 am, Marius  wrote:
>
> > Hmmm  ... I never saw this behavior. Do you happen to use multiple
> > browser tabs using different sessions of your app?
>
> > Can you trace the sessionID in your app with (S.session.map
> > (_.uniqueId) openOr '") or trace the HTTP session Id by S.request.map
> > (_.request.session.sessionId) ?
>
> > Br's,
> > Marius
>
> > On Jan 13, 9:01 am, Juha Syrjälä  wrote:
>
> > > Hello all,
>
> > > I am having a problem with SessionVar that keeps losing its contents.
>
> > > I have defined the SessionVar like this:
>
> > > object MyObject {
> > >    object myVar extends SessionVar[Box[MyObject]](Empty)
>
> > > }
>
> > > Then I set value once for myVar:
>
> > > MyObject.myVar(Full(value))
>
> > > My problem is that after some time (0-5 mins) myVar will lose its
> > > value, that is, it will have value Empty again. This seems not to be
> > > due inactivity since I am clicking pages constantly. My code is not
> > > setting value to Empty. During this 0-5 mins the myVar will work
> > > correctly. The logs contain no related messages.
>
> > > I am requesting pages that all reference the session var. Sometimes
> > > session var becomes empty in the first request, sometimes after
> > > several dozen requests.
>
> > > I tried to add shutdown method to myVar, but it is not getting called.
>
> > > override protected def onShutdown(session: CleanUpParam): Unit = {
> > >    Log.error("shutdown executed" + session)
>
> > > }
>
> > > I am running Lift in jetty via mvn jetty:run command. I am using 1.1-
> > > SNAPSHOT of Lift. I am not creating explicitly any kind of cookie or
> > > session.
>
> > > Any ideas what is happening? It could be that session expires or
> > > invalidates somehow, but why and by whom? How can I found out when
> > > session invalidates?
>
> > > I even tried to disable liftGC with (LiftRules.enableLiftGC = false)
> > > but that does not affect the problem.
>
> > > --
> > > Juha Syrjälä
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[Lift] Re: SessionVar that loses it contents

[Juha Syrjälä]

I am using only one tab.  The app itself is rather simple, it just
contains forms where fields are submitted to objects stored in
SessionVar.

I'll try the thing you suggested later today.

Is there a some way I could add some logging to sessionVar when it's
value is changed?

On Jan 13, 9:40 am, Marius  wrote:
> Hmmm  ... I never saw this behavior. Do you happen to use multiple
> browser tabs using different sessions of your app?
>
> Can you trace the sessionID in your app with (S.session.map
> (_.uniqueId) openOr '") or trace the HTTP session Id by S.request.map
> (_.request.session.sessionId) ?
>
> Br's,
> Marius
>
> On Jan 13, 9:01 am, Juha Syrjälä  wrote:
>
> > Hello all,
>
> > I am having a problem with SessionVar that keeps losing its contents.
>
> > I have defined the SessionVar like this:
>
> > object MyObject {
> >    object myVar extends SessionVar[Box[MyObject]](Empty)
>
> > }
>
> > Then I set value once for myVar:
>
> > MyObject.myVar(Full(value))
>
> > My problem is that after some time (0-5 mins) myVar will lose its
> > value, that is, it will have value Empty again. This seems not to be
> > due inactivity since I am clicking pages constantly. My code is not
> > setting value to Empty. During this 0-5 mins the myVar will work
> > correctly. The logs contain no related messages.
>
> > I am requesting pages that all reference the session var. Sometimes
> > session var becomes empty in the first request, sometimes after
> > several dozen requests.
>
> > I tried to add shutdown method to myVar, but it is not getting called.
>
> > override protected def onShutdown(session: CleanUpParam): Unit = {
> >    Log.error("shutdown executed" + session)
>
> > }
>
> > I am running Lift in jetty via mvn jetty:run command. I am using 1.1-
> > SNAPSHOT of Lift. I am not creating explicitly any kind of cookie or
> > session.
>
> > Any ideas what is happening? It could be that session expires or
> > invalidates somehow, but why and by whom? How can I found out when
> > session invalidates?
>
> > I even tried to disable liftGC with (LiftRules.enableLiftGC = false)
> > but that does not affect the problem.
>
> > --
> > Juha Syrjälä
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[Lift] Re: Ajax button + submitting a form

[Marius]

Yes please a small app would be best. Please use 2.0-SNAPSHOT.

Also please see this thread: 
http://groups.google.com/group/liftweb/browse_thread/thread/75750c42ec3a2d7d?hl=en#

Br's,
Marius

On Jan 13, 10:07 am, Adam Warski  wrote:
> Hello,
>
> the problem is that some form elements are updated, then the function is 
> called, and then the rest of the form elements are updated.
> My code is more or less something like this:
>
>     def editElement(elementTemplate: NodeSeq): NodeSeq = {
>       container.elements.flatMap { element: Element =>
>           bind("element", elementTemplate,
>             "name" -> { println("bind element name " + element.name); 
> SHtml.text(element.name.is,
>               (s: String) => {println("set element name " + s); 
> element.name(s); }) }
>             )
>       }
>     }
>
>     bind("cont", containerTemplate,
>       "name" -> { println("bind container name " + conf.name); 
> SHtml.text(cont.name.is,
>               (s: String) => {println("set container name " + s); 
> cont.name(s); }) },
>       "elements" -> editElement _,
>       "addElement" -> ajaxButton(Text("Add"), "edit_form"id, () => { 
> println("executing function"); cont.addElement; reDraw })
>       )
>
> And the output, when I submit a form where 1 element is already added is:
>
> 09:04:23,450 INFO  [STDOUT] set container name a
> 09:04:23,474 INFO  [STDOUT] executing function
> 09:04:23,474 INFO  [STDOUT] bind container name a
> 09:04:23,475 INFO  [STDOUT] bind element name 0
> 09:04:23,476 INFO  [STDOUT] bind element name 1
> 09:04:23,478 INFO  [STDOUT] set element name 0a
>
> So as you can see first cont.name is set, then the button function is 
> executed, and later the element.names are set.
>
> I can try creating a small lift app which would demo this if you'd like.
> Also, I'm using 1.1-M8. Maybe I should try some newer version? (2.0-SNAPSHOT? 
> 1.1-SNAPSHOT?)
>
> Adam
>
> On Jan 12, 2010, at 6:03 PM, Marius wrote:
>
> > I must have misread your post. I did test the ajaxButton above (with
> > your corrections) and the behaviour is correct. Form field functions
> > are invoked first and then your ajax function provided to ajaxButton.
> > Thus this is a good way for adding submit functions for ajax form
> > without the need of using hidden fields and I'll promote this for
> > addition in Shtml (probably with slight modifications). I think the
> > method name should be "ajaxSubmit"
>
> > I don't quite get why you're saying this is a problem. What does step
> > 3 needs to accomplish? . all form fields functions are called (except
> > if you have a Shtml.submit because form serialization does not include
> > submits). Then you function is invoked and the response is sent to
> > client.
>
> > You mentioned that you just need to add multiple buttons for a ajax
> > form ... this version of ajaxButton does just that. Can you please
> > clarify your used case for for for those 3 steps? ...
>
> > Br's,
> > Marius
>
> > On Jan 12, 4:20 pm, Adam Warski  wrote:
> >> Hello,
>
> >> this *almost* works :).
>
> >> I modified your code a bit and now I have:
>
> >> def ajaxButton(text: NodeSeq, formId: String, func: () => JsCmd, attrs: 
> >> (String, String)*): Elem = {
> >>     attrs.foldLeft(fmapFunc(contextFuncBuilder(func))(name =>
> >>              >>               LiftRules.jsArtifacts.serialize(formId).toJsCmd + " + " + 
> >> Str("&" + name + "=true").toJsCmd)).toJsCmd +
> >>                     "; return false;"}>{text}))(_ % _)
> >>   }
>
> >> Now the form submits and the right function is executed on the server, and 
> >> the form is redrawn in the browser.
>
> >> However, the problem is in the ordering of operations.
> >> The sequence basically is:
> >> (1) update some elements of the form
> >> (2) execute the function
> >> (3) update the rest of the elements of the form
>
> >> The problem of course is that (2) returns the new content of the form (a 
> >> SetHtml JsCmd), generated basing on state without all fields updated.
> >> I don't quite yet get the rule deciding which fields get updated before 
> >> calling the function, and which after.
> >> One thing I noticed is that if I move the field that is bound first (in 
> >> bind(...)) to be the last field, it gets moved from group (1) to (3).
>
> >> Also, I thought that maybe the ordering of POST values matters, but 
> >> swapping Str("&" + name + "=true").toJsCmd and 
> >> LiftRules.jsArtifacts.serialize(formId).toJsCmd doesn't have any effect.
>
> >> I tried the form many times and always get the same behaviour, so the (1) 
> >> vs. (3) division seems to be deterministic :)
>
> >> Adam
>
> >> On Jan 11, 2010, at 10:58 PM, Marius wrote:
>
> >>> Adam I was thinking of a slightly different approach that does not
> >>> involve hidden fields:
>
> >>> Say you have your current form with SHtml.text, checkboxes or whatever
> >>> have you:
>
> >>> then your ajax buttons (outside the form) like:
>
> >>>  def ajaxButton(text: NodeSeq, formId: String, func: ()

Re: [Lift] Re: Ajax button + submitting a form

[Adam Warski]

Hello,

the problem is that some form elements are updated, then the function is 
called, and then the rest of the form elements are updated.
My code is more or less something like this:

def editElement(elementTemplate: NodeSeq): NodeSeq = {
  container.elements.flatMap { element: Element =>
  bind("element", elementTemplate,
"name" -> { println("bind element name " + element.name); 
SHtml.text(element.name.is,
  (s: String) => {println("set element name " + s); 
element.name(s); }) }
)
  }
}

bind("cont", containerTemplate,
  "name" -> { println("bind container name " + conf.name); 
SHtml.text(cont.name.is,
  (s: String) => {println("set container name " + s); cont.name(s); 
}) },
  "elements" -> editElement _,
  "addElement" -> ajaxButton(Text("Add"), "edit_form"id, () => { 
println("executing function"); cont.addElement; reDraw })
  )

And the output, when I submit a form where 1 element is already added is:

09:04:23,450 INFO  [STDOUT] set container name a
09:04:23,474 INFO  [STDOUT] executing function
09:04:23,474 INFO  [STDOUT] bind container name a
09:04:23,475 INFO  [STDOUT] bind element name 0
09:04:23,476 INFO  [STDOUT] bind element name 1
09:04:23,478 INFO  [STDOUT] set element name 0a

So as you can see first cont.name is set, then the button function is executed, 
and later the element.names are set.

I can try creating a small lift app which would demo this if you'd like.
Also, I'm using 1.1-M8. Maybe I should try some newer version? (2.0-SNAPSHOT? 
1.1-SNAPSHOT?)

Adam

On Jan 12, 2010, at 6:03 PM, Marius wrote:

> I must have misread your post. I did test the ajaxButton above (with
> your corrections) and the behaviour is correct. Form field functions
> are invoked first and then your ajax function provided to ajaxButton.
> Thus this is a good way for adding submit functions for ajax form
> without the need of using hidden fields and I'll promote this for
> addition in Shtml (probably with slight modifications). I think the
> method name should be "ajaxSubmit"
> 
> I don't quite get why you're saying this is a problem. What does step
> 3 needs to accomplish? . all form fields functions are called (except
> if you have a Shtml.submit because form serialization does not include
> submits). Then you function is invoked and the response is sent to
> client.
> 
> You mentioned that you just need to add multiple buttons for a ajax
> form ... this version of ajaxButton does just that. Can you please
> clarify your used case for for for those 3 steps? ...
> 
> Br's,
> Marius
> 
> On Jan 12, 4:20 pm, Adam Warski  wrote:
>> Hello,
>> 
>> this *almost* works :).
>> 
>> I modified your code a bit and now I have:
>> 
>> def ajaxButton(text: NodeSeq, formId: String, func: () => JsCmd, attrs: 
>> (String, String)*): Elem = {
>> attrs.foldLeft(fmapFunc(contextFuncBuilder(func))(name =>
>> >   LiftRules.jsArtifacts.serialize(formId).toJsCmd + " + " + 
>> Str("&" + name + "=true").toJsCmd)).toJsCmd +
>> "; return false;"}>{text}))(_ % _)
>>   }
>> 
>> Now the form submits and the right function is executed on the server, and 
>> the form is redrawn in the browser.
>> 
>> However, the problem is in the ordering of operations.
>> The sequence basically is:
>> (1) update some elements of the form
>> (2) execute the function
>> (3) update the rest of the elements of the form
>> 
>> The problem of course is that (2) returns the new content of the form (a 
>> SetHtml JsCmd), generated basing on state without all fields updated.
>> I don't quite yet get the rule deciding which fields get updated before 
>> calling the function, and which after.
>> One thing I noticed is that if I move the field that is bound first (in 
>> bind(...)) to be the last field, it gets moved from group (1) to (3).
>> 
>> Also, I thought that maybe the ordering of POST values matters, but swapping 
>> Str("&" + name + "=true").toJsCmd and 
>> LiftRules.jsArtifacts.serialize(formId).toJsCmd doesn't have any effect.
>> 
>> I tried the form many times and always get the same behaviour, so the (1) 
>> vs. (3) division seems to be deterministic :)
>> 
>> Adam
>> 
>> On Jan 11, 2010, at 10:58 PM, Marius wrote:
>> 
>>> Adam I was thinking of a slightly different approach that does not
>>> involve hidden fields:
>> 
>>> Say you have your current form with SHtml.text, checkboxes or whatever
>>> have you:
>> 
>>> then your ajax buttons (outside the form) like:
>> 
>>>  def ajaxButton(text: NodeSeq, formId: String, func: () => JsCmd,
>>> attrs: (String, String)*): Elem = {
>>>attrs.foldLeft(fmapFunc(contextFuncBuilder(SFuncHolder(func)))
>>> (name =>
>>>>> (LiftRules.jsArtifacts.serialize(formId) + "&" + name.encJs +
>>> "=_")).toJsCmd +
>>>"; return false;"}>{text}))(_ % _)
>>>  }
>> 
>>> I haven't tested though but you get the idea ... When we do the ajax
>>> call, we serial