[Rails] Re: Getting the associated model in a join table

[Jaryl Sim]

I don't think a delegate would work. Okay, just to recap on the
database structure:

products
| id | name | price |
|  1 | a   |  2.50 |
|  2 | b   |  1.50 |

suppliers
| id | name |
|  1 |  s_a  |
|  2 |  s_b  |

products_suppliers
| id | supplier_id | product_id | supplier_type |
| 1  |   1 | 1  |   vendor  |
| 2  |   1 |  2 | manufacturer|

Firstly, I don't think that 'products_suppliers' is a good name since
this form is only a requirement for HABTM to work. It should be more
descriptive of the relationship, but your call.

Okay, so I believe that you want to do something like this:

p = Product.first

p.vendors # = [# Supplier id: 1, name: s_a, #Supplier id: 2,
name: s_b]
p.manufacturer # = # Supplier id: 1, name: s_a

You might want to try this:

class Product  ActiveRecord::Base
  has_many :products_suppliers
  has_many suppliers, :through = products_suppliers

  named_scope :vendors, :conditions = [supplier_type = ?, vendor]
  named_scope :manufacturer, :conditions = [supplier_type = ?,
manufacturer]
end

This does not restrict the manufacturer to a one-to-many relationship,
so you will have to ensure that each product will have only one
manufacturer (you can do this pretty easily with some validations).

On Apr 8, 11:14 am, Matt Jones al2o...@gmail.com wrote:
 On Apr 7, 1:28 pm, Marcelo de Moraes Serpa celose...@gmail.com
 wrote:





  So let's take this code

  p = Product.find(1)

  What I need is a specific products_suppliers related to specific combo of
  (supplier_id,product_id) keys, so I can get the supplier_type data related
  to this product+supplier. However, I the has_many relationship in Supplier
  reaturns all the products_suppliers that has supplier_id == the id of this
  supplier -- To get the specific products_supplier I would also need the id
  of the product that owns this supplier, but I can't get it. So, the first
  thing I though was something like has_one :through. That's why I said, a
  has_one relationship through a link table. The thing is, I need the
  product_id that owns this supplier from the supplier model. I might as well
  just leave AR and do some raw SQL, or maybe use sql :select statemente in
  the association to fetch the type from the link table into the association.

  Does that make sense?

 Maybe this is too obvious, but given the example above, couldn't you
 just use:

 p.products_suppliers.find_by_supplier_id(some_supplier_id)

 That will give you the supplier that you're looking for.

 BTW, I'd recommend a different name for the supplier_type column -
 that pattern (same as the foreign key, with _type instead of _id) is
 the Rails convention for single table inheritance, which is NOT what
 you're looking for here. It shouldn't cause a problem, but the AR
 association code is known to sometimes get really weird indigestion
 from that situation...

 Hope this helps,

 --Matt Jones
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[Rails] Validate file format: not by extension

[Brijesh Shah]

Hi All,

I want to validate a file format before uploaded on server.

I know it can be validate by content-type or using regex.
But I wonder if someone change the extension of file and then uploaded
it

I have to validate only two format: 1) wav 2) gsm

Thanks
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[Rails] Re: How to use Net::SSH

[Conrad Taylor]

On Tue, Apr 7, 2009 at 10:27 PM, Shripad shripad.josh...@gmail.com wrote:


 Hi all,

 I am having following code in ruby

 require 'net/ssh'
  require 'net/sftp'
  begin
Net::SSH.start
 ('132.147.161.159',:password='k',:port=1234,:username='k') do |ssh|
  ssh.sftp.connect do |sftp|
Dir.foreach('.') do |file|
puts file
end
end
 end
 rescue Exception= Ex
 puts Ex.message
 end

 After executing the above code it is giving me following error

 Bad file descriptor - connect(2)

 username, password, and ipaddress are fine

 What I want is to take data from remote machine to server.

 Please Help me out.


 Thanks and Regards,
 Shri


What are you wanting to do?  SFTP or SSH?  From the code,
it appears that you're trying to move a file from point A to B.
Thus, here's a brief outline of the things that you can do with
SFTP:

require 'net/sftp'

  Net::SFTP.start('host', 'username', :password = 'password') do |sftp|
# upload a file or directory to the remote host
sftp.upload!(/path/to/local, /path/to/remote)

# download a file or directory from the remote host
sftp.download!(/path/to/remote, /path/to/local)

# grab data off the remote host directly to a buffer
data = sftp.download!(/path/to/remote)

# open and write to a pseudo-IO for a remote file
sftp.file.open(/path/to/remote, w) do |f|
  f.puts Hello, world!\n
end

# open and read from a pseudo-IO for a remote file
sftp.file.open(/path/to/remote, r) do |f|
  puts f.gets
end

# create a directory
sftp.mkdir! /path/to/directory

# list the entries in a directory
sftp.dir.foreach(/path/to/directory) do |entry|
  puts entry.longname
end
  end

Good luck,


-Conrad




 


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[Rails] Re: How to pass data to Javascript variable from Ruby on Rails

[Chris Kottom]

The most straightforward way of doing what you want is: %= my_var %

On Wed, Apr 8, 2009 at 7:31 AM, SpringFlowers AutumnMoon 
rails-mailing-l...@andreas-s.net wrote:


 I wonder on RoR, will there be a need sometimes to pass some data from
 Ruby to Javascript?

 1)   var title = __ ;

 What is the proper way to do it (fill in the code for  __ )
 if title can have newline character, or single / double quote or any
 weird character.  and what's more, what if the title from database can
 have script tags, so the code need to do cross-site scripting (xss)
 prevention, say, if the title needs to be set into a div's innerHTML
 later.

 2) further more, what if we do

 a href=# onclick=changeIt(__); return false;Click
 me/a

 This case is more complicated, since I think there is a rule that says,
 anything inside the attribute's value will first be parsed by the
 browser as HTML first, so this is a little trickier than case (1).

 Any standard way in Rails to do it?   Thanks.
 --
 Posted via http://www.ruby-forum.com/.

 


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[Rails] Adding files in git

[Pål Bergström]

Do I need to add each new file in git that is created after init?

Or does it happen when I do git commit -a -v -m 'test'?

If so, can I just use git . and it will take new files and skip old
ones?
-- 
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[Rails] Rails 2.3 memcache performance drop

[Clinton]

After much effort I upgraded our fairly large Rails app from 2.1 to
2.3.  After deployment yesterday I noticed an across the board
increase in response times.  It seems that every call to memcache now
takes 10x longer than before.  Here are some example numbers from my
development log (below), with memcache running locally.  We see
similar scale of performance drop in production as well -  average
memcache call before 2ms, now 20ms.  It adds up to a significant hit.

Before Rails 2.3 upgrade:

Cached fragment hit: views/homepage_recent_blog_posts (0.00043)
Cached fragment hit: views/homepage_active_threads (0.00033)
Cached fragment hit: views/homepage_weekly_feature (0.00029)
Cached fragment hit: views/homepage_recent_approved_items (0.00036)
Cached fragment hit: views/homepage_popular_items (0.00037)
Cached fragment hit: views/number_of_members (0.00032)

After Rails 2.3 upgrade:

Cached fragment hit: views/homepage_recent_blog_posts (3.2ms)
Cached fragment hit: views/homepage_active_threads (3.5ms)
Cached fragment hit: views/homepage_weekly_feature (2.9ms)
Cached fragment hit: views/homepage_recent_approved_items (2.8ms)
Cached fragment hit: views/homepage_popular_items (3.1ms)
Cached fragment hit: views/number_of_members (6.7ms)

Before I start delving into the memcache internals in Rails 2.3, has
anyone else experienced this degradation on their apps?  Is there a
magic 'make it fast again' switch that I can flick?

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[Rails] Re: How to use Net::SSH

[Shripad]

Hi,
Thanks Conrad for ur urgent reply

What I want to do is just pickup the images from machine A to machine
B.

I did what you say but I am getting error as follows

E:/InstantRails/ruby/lib/ruby/gems/1.8/gems/net-sftp-2.0.2/lib/net/
sftp.rb:43:in
 `start': undefined method `shutdown!' for nil:NilClass
(NoMethodError)
from SSHTransfer.rb:8

what I write is this
sftp=Net::SFTP.start('132.147.161.159', 'k',:password = 'k')

Thanks and Regards

On Apr 8, 11:24 am, Conrad Taylor conra...@gmail.com wrote:
 On Tue, Apr 7, 2009 at 10:27 PM, Shripad shripad.josh...@gmail.com wrote:

  Hi all,

  I am having following code in ruby

  require 'net/ssh'
   require 'net/sftp'
   begin
     Net::SSH.start
  ('132.147.161.159',:password='k',:port=1234,:username='k') do |ssh|
       ssh.sftp.connect do |sftp|
         Dir.foreach('.') do |file|
             puts file
         end
     end
  end
  rescue Exception= Ex
  puts Ex.message
  end

  After executing the above code it is giving me following error

  Bad file descriptor - connect(2)

  username, password, and ipaddress are fine

  What I want is to take data from remote machine to server.

  Please Help me out.

  Thanks and Regards,
  Shri

 What are you wanting to do?  SFTP or SSH?  From the code,
 it appears that you're trying to move a file from point A to B.
 Thus, here's a brief outline of the things that you can do with
 SFTP:

 require 'net/sftp'

   Net::SFTP.start('host', 'username', :password = 'password') do |sftp|
     # upload a file or directory to the remote host
     sftp.upload!(/path/to/local, /path/to/remote)

     # download a file or directory from the remote host
     sftp.download!(/path/to/remote, /path/to/local)

     # grab data off the remote host directly to a buffer
     data = sftp.download!(/path/to/remote)

     # open and write to a pseudo-IO for a remote file
     sftp.file.open(/path/to/remote, w) do |f|
       f.puts Hello, world!\n
     end

     # open and read from a pseudo-IO for a remote file
     sftp.file.open(/path/to/remote, r) do |f|
       puts f.gets
     end

     # create a directory
     sftp.mkdir! /path/to/directory

     # list the entries in a directory
     sftp.dir.foreach(/path/to/directory) do |entry|
       puts entry.longname
     end
   end

 Good luck,

 -Conrad


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[Rails] Re: Initializers not available in controllers...

[Frederick Cheung]

On Apr 7, 10:05 pm, Neal L neal.lo...@gmail.com wrote:

 In my account signup controller, I call:

   @plan_cost = app_plan...@plan_name][Price]

 but I get an error:

   uninitialized constant ClientsController::APP_PLANS

 So what am I doing wrong here? Why can't I get to the variable I
 initialized???

Did you restart the server after adding/changing this initializer ?

Fred
 Thanks!
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[Rails] Re: Problem with MYSQL after re-installing rails

[Frederick Cheung]

On Apr 8, 12:25 am, Gavin ga...@thinkersplayground.com wrote:
 Hmmm - have downloaded and re-installed MYSQL 5.1.33

but did you get the 32bit version ? (and have you tried using --with-
mysql-config=/path/to/mysql_config ?)

Fred
 Still getting the same issue.
 In pref pane it shows that mysql is running.

 Can anybody think of anything else I can check/do?

 Really need to get my database back up and running soon :S

 Thanks

 On Apr 7, 8:31 pm, Frederick Cheung frederick.che...@gmail.com
 wrote:

  On Apr 7, 7:36 pm, Dean Richardson rails-mailing-l...@andreas-s.net
  wrote:

   Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/mysql-2.7
   for inspection.
   Results logged to /Library/Ruby/Gems/1.8/gems/mysql-2.7/gem_make.out

   Any suggestions for diagnosing my mistake here?

  That sounds like a different issue  ( in Gavin's case it just the
  headers/libs for mysql it can't locate) - maybe you don't have all of
  the stuff from the Dev tools you need ?

  Fred

   Thanks!

   Dean Richardson
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[Rails] Re: Anyone know a way to create html comments with the names of the views?

[Frederick Cheung]

On Apr 8, 1:54 am, Emanuele Tozzato etozz...@gmail.com wrote:
 I'm using it and it's cool, but it should probably check if any layout
 statement is present on the controller: if layout is nil then I
 probably don't need/want any comment in the template :)


More precisely if what it's rendering isn't html it probably shouldn't
be putting html comments in!

Fred
 (found this with the :tex view of instiki clone)

 thanks 4 the plugin!

 On Fri, Apr 3, 2009 at 10:50 AM, Frederick Cheung

 frederick.che...@gmail.com wrote:
  For what it's worth i've pluginised 
  this:http://github.com/fcheung/tattler/tree/master

 --
 Emanuele Tozzato
 +1 (619) 549 3230
 1985 Sherington Place, #E302
 Newport Beach, CA 92663http://mekdigital.com
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[Rails] Re: AR.find :include is adding stuff I don't want

[Frederick Cheung]

On Apr 8, 5:35 am, Greg Willits rails-mailing-l...@andreas-s.net
wrote:

 When I use the code above, I get data from Article (good), Extras
 (good), and Assets (bad), and nothing from Pages (curious).

 I don't understand why Assets is being included, and I don't know how to
 keep that data out of the results.


Odd. Maybe you could show the sql it is executing ?

Fred
 What am I missing? Thx.

 -- gw
 --
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[Rails] Re: Conditionally respond with HTTP redirect for xml_http_request

[Frederick Cheung]

On Apr 8, 6:51 am, Ram yourstruly.vi...@gmail.com wrote:
 Hi all,

 I have select box in one of my views which lists a few contacts.
 I also have an option in this select box to add a new contact.
 There is also an observe_field hook to this select box that Ajax
 requests further info about the selected contact from the controller
 and displays it in an adjacent info div.

 Now, I need to redirect the user to the New Contact page from the
 controller if the selected value from the select box is new contact.

 This is the controller code I have now
 
 if request.xml_http_request?
   if !...@contact.blank?
     render :partial = show, :layout = false
   elsif params[:id] == new contact
     redirect_to new_contact_path
   else
     render :text = Please select a contact
   end
 end

 This renders the New Contact page in the info div. Whereas, I want
 the user to be completely redirected to the New Contact page like a
 HTTP response would.
 Any thoughts on how I can handle this? Any ideas welcome..
 Thanks!

Two ways of doing this: either the observe_field thingy has a callback
that redirects in the right circumstances or you switch to using
render :update (and then use page.redirect_to), In the latter case you
have to use render :update for all of these 3 possibilities and you
need to change your observe_field invocation to not pass the :update
option.

Fred
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[Rails] Re: Ajax Rails

[Frederick Cheung]

On Apr 8, 5:45 am, esdevs seanpdev...@gmail.com wrote:
 ok - I am trying to do something seemingly straight forward.
 Essentially I want to list out a bunch of items and for each item
 individually, if the user clicks on it, the corresponding web link
 will appear underneath -- if the user clicks on the item again, then
 the weblink disappears.  This should work for each item in the list.
 I have tried but to no avail - below is a vid clip of what is
 happening as well as the code that I am using -- any help is greatly
 appreciated

Well by the looks of things you have multiple divs with the same id
(never a good) idea, you're using link_to_remote but not actually
making an ajax call (link_to_function might be more appropriate) and
if my memory is correct and you want to select that link, next()
selects siblings whereas it looks like you want to select children
(which is what down does)

Fred

 http://www.screentoaster.com/watch/stU0… BeQlVeXV5e

 (partial _post.html.erb)
 h2%= link_to_remote(#{post.title}, :after = $('link').next
 (1).toggle()) %/h2
 div id=link style=display: none;
   %= post.link %
 /div
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[Rails] Re: Adding files in git

[Bosko Ivanisevic]

You have to add files to git with:

git add .

This will add all new files. Command

git commit -a -m ''

with add only already tracked and changed files and commit them with
given message.

On Apr 8, 9:02 am, Pål Bergström rails-mailing-l...@andreas-s.net
wrote:
 Do I need to add each new file in git that is created after init?

 Or does it happen when I do git commit -a -v -m 'test'?

 If so, can I just use git . and it will take new files and skip old
 ones?
 --
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[Rails] Re: Conditionally respond with HTTP redirect for xml_http_request

[Ram]

Hi Fred,

Thanks for your response.

render :update
Ive got quite a few Ruby conditions and styling going in the js.erb
file im using now to display the contact information. And ive got more
possibilities than the 3 ive shown above in the controller. So this
might not be the right option for me. Right?

observe_field callback
This might work for me. Right now, the only callbacks I have on the
observe_field are showing and hiding the spinner. I have never written
custom callbacks on Rails JS helpers. Could you help me through this?

So im guessing I should be having something like this

%= observe_field 'contact_id', :frequency = 0.5, :update =
'info', :before = Element.show('spinner'),
:success = handle_contact_request(value);, :url =
show_contact_path,:method =:get,
:with = 'contact_id' %

and in application.js

function handle_contact_request(value){

 Element.hide('spinner');
 if value==new contact
 {
//how do i redirect to the New Contact page?
 }
 else
 {
   //show contact info. But how do I handle the conditions
and styling??
 }
}

Am I getting the basic idea right? If yes, how can I handle the
conditional redirecting and the rest in Javascript?
Thanks again Fred.

On Apr 8, 12:20 pm, Frederick Cheung frederick.che...@gmail.com
wrote:
 On Apr 8, 6:51 am, Ram yourstruly.vi...@gmail.com wrote:



  Hi all,

  I have select box in one of my views which lists a few contacts.
  I also have an option in this select box to add a new contact.
  There is also an observe_field hook to this select box that Ajax
  requests further info about the selected contact from the controller
  and displays it in an adjacent info div.

  Now, I need to redirect the user to the New Contact page from the
  controller if the selected value from the select box is new contact.

  This is the controller code I have now
  
  if request.xml_http_request?
    if !...@contact.blank?
      render :partial = show, :layout = false
    elsif params[:id] == new contact
      redirect_to new_contact_path
    else
      render :text = Please select a contact
    end
  end

  This renders the New Contact page in the info div. Whereas, I want
  the user to be completely redirected to the New Contact page like a
  HTTP response would.
  Any thoughts on how I can handle this? Any ideas welcome..
  Thanks!

 Two ways of doing this: either the observe_field thingy has a callback
 that redirects in the right circumstances or you switch to using
 render :update (and then use page.redirect_to), In the latter case you
 have to use render :update for all of these 3 possibilities and you
 need to change your observe_field invocation to not pass the :update
 option.

 Fred
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[Rails] Re: Adding files in git

[Pål Bergström]

Bosko Ivanisevic wrote:
 You have to add files to git with:
 
 git add .
 
 This will add all new files. Command
 
 git commit -a -m ''
 
 with add only already tracked and changed files and commit them with
 given message.
 
 On Apr 8, 9:02�am, P�l Bergstr�m rails-mailing-l...@andreas-s.net

Thanks :-)
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[Rails] problem in understanding respond_to in rails 2.0 and above

[Tushar Gandhi]

Hi,
I am using rails 2.2.

I have created a controller using ruby script/generate scaffold
person.
This created the code like this.

def index
@people = Person.find(:all)

respond_to do |format|
  format.html
  format.xml { render :xml = @people.to_xml }
end
 end

 I am new in rails 2.0 and above. I worked on rails 1.2.3. I an not able
to understand what is the use of

respond_to do |format|
  format.html
  format.xml { render :xml = @people.to_xml }
 end this code.

Can anyone focus for me?
Help appreciated.

Also there are some code like this
respond_to do |format|
  format.html
  format.js
  format.xml { render :xml = @people.to_xml }
 end

Thanks,
Tushar
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[Rails] Re: Error in Mysql Connection

[Darren Bishop]

Trejkaz Xx wrote:
 Hao Zhao wrote:
 1.  download older MySQL client library, for example one from 
 InstantRails: 
 http://instantrails.rubyforge.org/svn/trunk/InstantRails-win/InstantRails/mysql/bin/libmySQL.dll
 
 2.  copy the downloaded file to C:\Ruby\bin (or wherever you installed 
 Ruby)
 
 3. restart MySQL server
 
 I did steps 1 and 2 (I don't run the server on localhost so step 3 
 appears to be pointless for me.)
 
 I then got an error like: Access Denied: C:/Ruby/bin/.../mysql.so
 
 Turns out when the mysql gem installed, it didn't set mysql.so to be 
 executable.  I went into Explorer and manually turned it on, and it 
 started to work.  Explorer was showing the read permission but not the 
 execute permission.  Goes to show that this flag does take effect in 
 Windows after all. :rollseyes:
 
 I'm just documenting this in case someone else finds their way here and 
 has the same issue.
 
 TX

Actually, after your prompt to drop the lib in the %RUBY_HOME%\bin I 
tried the one that is in the %MYSQL_HOME%\bin i.e. not the one 
downloaded from InstantRails and it now works (well it seems to, no 
probs yet).

So this clearly indicates that Ruby really can't see libmySQL.dll on the 
path i.e. as installed with MySQL itself (5.1 for me).

So for now simply try cp %MYSQL_HOME%\bin\libmySQL.dll %RUBY_HOME%\bin.

Cheers
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[Rails] Re: Conditionally respond with HTTP redirect for xml_http_request

[Frederick Cheung]

On Apr 8, 8:38 am, Ram yourstruly.vi...@gmail.com wrote:
 Hi Fred,

 Thanks for your response.

 render :update
 Ive got quite a few Ruby conditions and styling going in the js.erb
 file im using now to display the contact information. And ive got more
 possibilities than the 3 ive shown above in the controller. So this
 might not be the right option for me. Right?

I'm not sure this would be a problem - seems like a few calls to
page.replace_html 'info', :partial = 'blah' would do it in the other
cases.


 observe_field callback
 This might work for me. Right now, the only callbacks I have on the
 observe_field are showing and hiding the spinner. I have never written
 custom callbacks on Rails JS helpers. Could you help me through this?

 So im guessing I should be having something like this

 %= observe_field 'contact_id', :frequency = 0.5, :update =
 'info', :before = Element.show('spinner'),
                 :success = handle_contact_request(value);, :url =
 show_contact_path,:method =:get,
                 :with = 'contact_id' %


Nearly. your success callback gets 2 thigns: response and
responseJSON. responseJSON contains whatever JSON you put in the X-
JSON header of your response. You callback can be as simple as

check_for_redirect(json){
  if(json  json.redirect)
page.location = json.redirect
}

and then pass :success = check_for_redirect(responseJSON). All you
need to do is to set that header appropriately if you want a redirect
to happen.

Fred



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[Rails] Ultrasphinx::UsageError (Invalid class name Place)

[Lucas]

Hi, all ..

  My application can run normally  on development environment  ,but when i
change it to production,  I got the problem below:

 Ultrasphinx::UsageError (Invalid class name Place):
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search/internals.rb:88:in `build
_request_with_options'
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search/internals.rb:85:in `map'
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search/internals.rb:85:in `build
_request_with_options'
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search.rb:333:in `run'

The Ultrasphinx configure , index and daemon:start all seem to have gone.

 Does anyone have an idea on this ?

 Thanks in advance.

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[Rails] Re: How to use Net::SSH

[Conrad Taylor]

On Wed, Apr 8, 2009 at 12:08 AM, Shripad shripad.josh...@gmail.com wrote:


 Hi,
 Thanks Conrad for ur urgent reply

 What I want to do is just pickup the images from machine A to machine
 B.

 I did what you say but I am getting error as follows

 E:/InstantRails/ruby/lib/ruby/gems/1.8/gems/net-sftp-2.0.2/lib/net/
 sftp.rb:43:in
  `start': undefined method `shutdown!' for nil:NilClass
 (NoMethodError)
from SSHTransfer.rb:8

 what I write is this
 sftp=Net::SFTP.start('132.147.161.159', 'k',:password = 'k')

 Thanks and Regards

 On Apr 8, 11:24 am, Conrad Taylor conra...@gmail.com wrote:
  On Tue, Apr 7, 2009 at 10:27 PM, Shripad shripad.josh...@gmail.com
 wrote:
 
   Hi all,
 
   I am having following code in ruby
 
   require 'net/ssh'
require 'net/sftp'
begin
  Net::SSH.start
   ('132.147.161.159',:password='k',:port=1234,:username='k') do |ssh|
ssh.sftp.connect do |sftp|
  Dir.foreach('.') do |file|
  puts file
  end
  end
   end
   rescue Exception= Ex
   puts Ex.message
   end
 
   After executing the above code it is giving me following error
 
   Bad file descriptor - connect(2)
 
   username, password, and ipaddress are fine
 
   What I want is to take data from remote machine to server.
 
   Please Help me out.
 
   Thanks and Regards,
   Shri
 
  What are you wanting to do?  SFTP or SSH?  From the code,
  it appears that you're trying to move a file from point A to B.
  Thus, here's a brief outline of the things that you can do with
  SFTP:
 
  require 'net/sftp'
 
Net::SFTP.start('host', 'username', :password = 'password') do |sftp|
  # upload a file or directory to the remote host
  sftp.upload!(/path/to/local, /path/to/remote)
 
  # download a file or directory from the remote host
  sftp.download!(/path/to/remote, /path/to/local)
 
  # grab data off the remote host directly to a buffer
  data = sftp.download!(/path/to/remote)
 
  # open and write to a pseudo-IO for a remote file
  sftp.file.open(/path/to/remote, w) do |f|
f.puts Hello, world!\n
  end
 
  # open and read from a pseudo-IO for a remote file
  sftp.file.open(/path/to/remote, r) do |f|
puts f.gets
  end
 
  # create a directory
  sftp.mkdir! /path/to/directory
 
  # list the entries in a directory
  sftp.dir.foreach(/path/to/directory) do |entry|
puts entry.longname
  end
end
 
  Good luck,
 
  -Conrad
 
 


Can you upgrade the gem and retrying what you
did before?  You can upgrade by doing the following:

sudo gem update

-Conrad

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[Rails] Ultrasphinx::UsageError (Invalid class name Place)

[Marshluca]

Hi, all ..

  My application can run normally  on development environment  ,but
when i change it to production,  I got the problem below:

 Ultrasphinx::UsageError (Invalid class name Place):
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search/internals.rb:88:in
`build _request_with_options'
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search/internals.rb:85:in
`map'
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search/internals.rb:85:in
`build _request_with_options'
/vendor/plugins/ultrasphinx/lib/ultrasphinx/search.rb:333:in `run'

The Ultrasphinx configure , index and daemon:start all seem to have
gone.

 Does anyone have an idea on this ?

 Thanks in advance.
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[Rails] Re: How to use Net::SSH

[Shripad]

Hi,

I updated the gem.
but still it is showing me the same error.
I am using windows, is that a problem for SFTP?
IS OpenSSH require for SFTP to connect to remote machine?
Is there any other way to do this?

Thanks and Regards,
Shripad

On Apr 8, 12:58 pm, Conrad Taylor conra...@gmail.com wrote:
 On Wed, Apr 8, 2009 at 12:08 AM, Shripad shripad.josh...@gmail.com wrote:

  Hi,
  Thanks Conrad for ur urgent reply

  What I want to do is just pickup the images from machine A to machine
  B.

  I did what you say but I am getting error as follows

  E:/InstantRails/ruby/lib/ruby/gems/1.8/gems/net-sftp-2.0.2/lib/net/
  sftp.rb:43:in
   `start': undefined method `shutdown!' for nil:NilClass
  (NoMethodError)
         from SSHTransfer.rb:8

  what I write is this
  sftp=Net::SFTP.start('132.147.161.159', 'k',:password = 'k')

  Thanks and Regards

  On Apr 8, 11:24 am, Conrad Taylor conra...@gmail.com wrote:
   On Tue, Apr 7, 2009 at 10:27 PM, Shripad shripad.josh...@gmail.com
  wrote:

Hi all,

I am having following code in ruby

require 'net/ssh'
 require 'net/sftp'
 begin
   Net::SSH.start
('132.147.161.159',:password='k',:port=1234,:username='k') do |ssh|
     ssh.sftp.connect do |sftp|
       Dir.foreach('.') do |file|
           puts file
       end
   end
end
rescue Exception= Ex
puts Ex.message
end

After executing the above code it is giving me following error

Bad file descriptor - connect(2)

username, password, and ipaddress are fine

What I want is to take data from remote machine to server.

Please Help me out.

Thanks and Regards,
Shri

   What are you wanting to do?  SFTP or SSH?  From the code,
   it appears that you're trying to move a file from point A to B.
   Thus, here's a brief outline of the things that you can do with
   SFTP:

   require 'net/sftp'

     Net::SFTP.start('host', 'username', :password = 'password') do |sftp|
       # upload a file or directory to the remote host
       sftp.upload!(/path/to/local, /path/to/remote)

       # download a file or directory from the remote host
       sftp.download!(/path/to/remote, /path/to/local)

       # grab data off the remote host directly to a buffer
       data = sftp.download!(/path/to/remote)

       # open and write to a pseudo-IO for a remote file
       sftp.file.open(/path/to/remote, w) do |f|
         f.puts Hello, world!\n
       end

       # open and read from a pseudo-IO for a remote file
       sftp.file.open(/path/to/remote, r) do |f|
         puts f.gets
       end

       # create a directory
       sftp.mkdir! /path/to/directory

       # list the entries in a directory
       sftp.dir.foreach(/path/to/directory) do |entry|
         puts entry.longname
       end
     end

   Good luck,

   -Conrad

 Can you upgrade the gem and retrying what you
 did before?  You can upgrade by doing the following:

 sudo gem update

 -Conrad
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[Rails] Re: Conditionally respond with HTTP redirect for xml_http_request

[Ram]

:) You were right. It was easy enough to use render :update and
replace_html with :partial to accomplish it.

I am however curious as to how we can do this using JSON. I started
reading about JSON for another feature I needed but I realised I dint
need JSON for it. I feel it would be a good exercise for me to
implement it in tackling this problem. Could you explain a little bit
more about the code you have shown me above or point me to where I can
find the documentation explaining this? From what I remember, JSON is
a format (Object Notation) to represent ActiveRecord objects (in
Rails) for JS to handle. But setting the header, responseJSON et all
is new to me.

Thanks Fred!


On Apr 8, 12:57 pm, Frederick Cheung frederick.che...@gmail.com
wrote:
 On Apr 8, 8:38 am, Ram yourstruly.vi...@gmail.com wrote:

  Hi Fred,

  Thanks for your response.

  render :update
  Ive got quite a few Ruby conditions and styling going in the js.erb
  file im using now to display the contact information. And ive got more
  possibilities than the 3 ive shown above in the controller. So this
  might not be the right option for me. Right?

 I'm not sure this would be a problem - seems like a few calls to
 page.replace_html 'info', :partial = 'blah' would do it in the other
 cases.



  observe_field callback
  This might work for me. Right now, the only callbacks I have on the
  observe_field are showing and hiding the spinner. I have never written
  custom callbacks on Rails JS helpers. Could you help me through this?

  So im guessing I should be having something like this

  %= observe_field 'contact_id', :frequency = 0.5, :update =
  'info', :before = Element.show('spinner'),
                  :success = handle_contact_request(value);, :url =
  show_contact_path,:method =:get,
                  :with = 'contact_id' %

 Nearly. your success callback gets 2 thigns: response and
 responseJSON. responseJSON contains whatever JSON you put in the X-
 JSON header of your response. You callback can be as simple as

 check_for_redirect(json){
   if(json  json.redirect)
     page.location = json.redirect

 }

 and then pass :success = check_for_redirect(responseJSON). All you
 need to do is to set that header appropriately if you want a redirect
 to happen.

 Fred
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[Rails] Re: Conditionally respond with HTTP redirect for xml_http_request

[Ram]

I am trying to implement Craig Ambrose's Redbox for some form
submissions.
Ideally for me, when the user selects Add contact a redbox modal
window should open with the New Contact form and on submission, the
contacts select box on the main page should get updated with the newly
added contact.
I was looking into invoking Redbox from the controller for this
(http://ahref.in/8dc58) but I couldnt quite grasp the discussion
there.
Can Redbox be brought in here without too much trouble?
thanks again for you inputs!

On Apr 8, 1:46 pm, Ram yourstruly.vi...@gmail.com wrote:
 :) You were right. It was easy enough to use render :update and
 replace_html with :partial to accomplish it.

 I am however curious as to how we can do this using JSON. I started
 reading about JSON for another feature I needed but I realised I dint
 need JSON for it. I feel it would be a good exercise for me to
 implement it in tackling this problem. Could you explain a little bit
 more about the code you have shown me above or point me to where I can
 find the documentation explaining this? From what I remember, JSON is
 a format (Object Notation) to represent ActiveRecord objects (in
 Rails) for JS to handle. But setting the header, responseJSON et all
 is new to me.

 Thanks Fred!

 On Apr 8, 12:57 pm, Frederick Cheung frederick.che...@gmail.com
 wrote:

  On Apr 8, 8:38 am, Ram yourstruly.vi...@gmail.com wrote:

   Hi Fred,

   Thanks for your response.

   render :update
   Ive got quite a few Ruby conditions and styling going in the js.erb
   file im using now to display the contact information. And ive got more
   possibilities than the 3 ive shown above in the controller. So this
   might not be the right option for me. Right?

  I'm not sure this would be a problem - seems like a few calls to
  page.replace_html 'info', :partial = 'blah' would do it in the other
  cases.

   observe_field callback
   This might work for me. Right now, the only callbacks I have on the
   observe_field are showing and hiding the spinner. I have never written
   custom callbacks on Rails JS helpers. Could you help me through this?

   So im guessing I should be having something like this

   %= observe_field 'contact_id', :frequency = 0.5, :update =
   'info', :before = Element.show('spinner'),
                   :success = handle_contact_request(value);, :url =
   show_contact_path,:method =:get,
                   :with = 'contact_id' %

  Nearly. your success callback gets 2 thigns: response and
  responseJSON. responseJSON contains whatever JSON you put in the X-
  JSON header of your response. You callback can be as simple as

  check_for_redirect(json){
    if(json  json.redirect)
      page.location = json.redirect

  }

  and then pass :success = check_for_redirect(responseJSON). All you
  need to do is to set that header appropriately if you want a redirect
  to happen.

  Fred
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[Rails] Re: AR.find :include is adding stuff I don't want

[Frederick Cheung]

On Apr 8, 9:52 am, Greg Willits rails-mailing-l...@andreas-s.net
wrote:
 Frederick Cheung wrote:
  On Apr 8, 5:35 am, Greg Willits rails-mailing-l...@andreas-s.net
  wrote:

 So, I dunno. But shouldn't that second finder case (without :include)
 not be returning :assets nor :extras? I end up using debug() to output
 the results to confirm what is actually being loaded, and I get those
 two associations, but no :pages data. Seems weird.

Random question: are you doing this from the console or is this output
from an app. Are you sure the load is coming from the find and not
from the association been accessed subsequently (eg put a log
statement after the find(..., :include) ? )

Fred
 -- gw

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[Rails] Restful design is a headache?

[Steve Dogers]

Hi,

So i really, really want to do restful rails. I've got the Peepcode
screencast, read the tutorials, etc.

BUT  - I still don't get it. The problem is, tutorials only cover the
basic stuff, and none of the application design elements.

For example, I have a shop. The shop has products. The products can only
be edited by an admin. So I scaffold products, and password protect the
lot, that's my admin area done. Now I create a shop and I want to 'view'
products. Oh wait, that's in products already, and that's not one of the
'restful 7'.

I'm completely confused. What about resetting a password? Do I have to
create a new reset_password resource?

Any pointer would be much, much appreciated.

Thank you!
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[Rails] Re: AR.find :include is adding stuff I don't want

[Greg Willits]

Frederick Cheung wrote:
 On Apr 8, 9:52�am, Greg Willits rails-mailing-l...@andreas-s.net
 wrote:
 Frederick Cheung wrote:
  On Apr 8, 5:35 am, Greg Willits rails-mailing-l...@andreas-s.net
  wrote:
 
 So, I dunno. But shouldn't that second finder case (without :include)
 not be returning :assets nor :extras? I end up using debug() to output
 the results to confirm what is actually being loaded, and I get those
 two associations, but no :pages data. Seems weird.

 Random question: are you doing this from the console or is this output
 from an app. Are you sure the load is coming from the find and not
 from the association been accessed subsequently (eg put a log
 statement after the find(..., :include) ? )


@#$#! After writing a big long thing to prove there was no other action 
taking place, and taking one more wider look before sending it to be 
sure I wasn't making an idiot of myself, I just scrolled down a little 
further in the model to re-discover an after_find I wrote which would in 
fact touch assets  extras.

I had just so compartmentalized the :include thing in my mind, I wasn't 
remembering after_find.

Egads. So sorry to waste your time Fred. But proving there was no log 
statement question pushed me to at least solve the (not so puzzling) 
puzzle. Thanks.

-- gw




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[Rails] Re: export to excel

[Sijo Kg]

Hi thanks for the reply . I saw

http://spreadsheet.rubyforge.org/

   What about this? Have you used it?

Sijo
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[Rails] Re: Export to PDF

[Devi Rv]

Hi Alain

I tried prawn for pdf creation.

1. gem install prawn
2. script/plugin install git://github.com/thorny-sun/prawnto.git
2. In environment.rb file add the line config.gem 'prawn'
3. i wrote in the following code in show.pdf.prawn it's located 
in(/app/view/orders/show.pdf.prawn) pdf.text Hello, World!
4. In my controller is
   def show

   end
5. http://localhost:3001/orders/show
6. In this aspect where to give the file name?

How to create simple pdf file using prawn library i followed this url
but can create the simple file this format
def show
Prawn::Document.generate hello-ttf.pdf do
  fill_color ff

  text Hello World, :at = [200,720], :size = 32
  text This is chalkboard wrapping  * 20
end
end

Regards
R.Devi





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[Rails] Re: AR.find :include is adding stuff I don't want

[Greg Willits]

Frederick Cheung wrote:
 On Apr 8, 5:35�am, Greg Willits rails-mailing-l...@andreas-s.net
 wrote:
 
 When I use the code above, I get data from Article (good), Extras
 (good), and Assets (bad), and nothing from Pages (curious).

 I don't understand why Assets is being included, and I don't know how to
 keep that data out of the results.

 
 Odd. Maybe you could show the sql it is executing ?

Hmm. now I am seeing something different.

With this code (more verbatim this time)...

class Article  ActiveRecord::Base

  self.primary_key = 'rcrd_id'

  has_many  :extras,
:dependent = :destroy

  has_many  :pages,
:order = 'sortOrder',
:dependent = :destroy

  has_many  :assets,
:dependent = :destroy

  def self.get_list
list = self.find(:all,
  :include = [:extras],
  :conditions = [
#{self.table_name}.rcrd_status='Y' AND ready='Y' AND 
publishDate = :today,
{:today = Date.today.to_s} ])
  end
end

Or with this code..

def self.get_list
  list = self.find(:all,
:conditions = [
  #{self.table_name}.rcrd_status='Y' AND ready='Y' AND publishDate 
= :today,
  {:today = Date.today.to_s} ])
end

I now see these same queries in the log.
(and this is restarting Rails after each time I change the code, just to 
be sure)

   [4;36;1mArticle Load (1.6ms) [0m[0;1mSELECT * FROM `articles` 
WHERE (articles.rcrd_status='Y' AND ready='Y' AND publishDate = 
'2009-04-08')  [0m
   [4;35;1mAsset Load (0.8ms) [0m[0mSELECT * FROM `assets` WHERE 
(`assets`.article_id = 'abc123')  [0m
   [4;36;1mExtra Load (1.1ms) [0m[0;1mSELECT * FROM `extras` WHERE 
(`extras`.article_id = 'abc123')  [0m

I know it was different before, I even showed someone to confirm it.

I don't see anything odd about the other models, they both have a simple 
belongs_to articles statement, and nothing else. Pages has a belongs_to 
articles, and a has_many to another model. Maybe that keeps pages from 
being loaded?

So, I dunno. But shouldn't that second finder case (without :include) 
not be returning :assets nor :extras? I end up using debug() to output 
the results to confirm what is actually being loaded, and I get those 
two associations, but no :pages data. Seems weird.

-- gw


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[Rails] Re: How to use Net::SSH

[Conrad Taylor]

On Wed, Apr 8, 2009 at 1:09 AM, Shripad shripad.josh...@gmail.com wrote:


 Hi,

 I updated the gem.
 but still it is showing me the same error.
 I am using windows, is that a problem for SFTP?
 IS OpenSSH require for SFTP to connect to remote machine?
 Is there any other way to do this?

 Thanks and Regards,
 Shripad


Shripad, I'm not sure of the state of Capistrano on Windows.  I'm sure that
you'll need the OpenSSH library installed on your system.  Thus, it may be
easier to install Cygwin and install OpenSSH from there.  Otherwise, you can
switch to Linux or Mac OS X or other Unix variant.

Good luck,

-Conrad



 On Apr 8, 12:58 pm, Conrad Taylor conra...@gmail.com wrote:
  On Wed, Apr 8, 2009 at 12:08 AM, Shripad shripad.josh...@gmail.com
 wrote:
 
   Hi,
   Thanks Conrad for ur urgent reply
 
   What I want to do is just pickup the images from machine A to machine
   B.
 
   I did what you say but I am getting error as follows
 
   E:/InstantRails/ruby/lib/ruby/gems/1.8/gems/net-sftp-2.0.2/lib/net/
   sftp.rb:43:in
`start': undefined method `shutdown!' for nil:NilClass
   (NoMethodError)
  from SSHTransfer.rb:8
 
   what I write is this
   sftp=Net::SFTP.start('132.147.161.159', 'k',:password = 'k')
 
   Thanks and Regards
 
   On Apr 8, 11:24 am, Conrad Taylor conra...@gmail.com wrote:
On Tue, Apr 7, 2009 at 10:27 PM, Shripad shripad.josh...@gmail.com
   wrote:
 
 Hi all,
 
 I am having following code in ruby
 
 require 'net/ssh'
  require 'net/sftp'
  begin
Net::SSH.start
 ('132.147.161.159',:password='k',:port=1234,:username='k') do
 |ssh|
  ssh.sftp.connect do |sftp|
Dir.foreach('.') do |file|
puts file
end
end
 end
 rescue Exception= Ex
 puts Ex.message
 end
 
 After executing the above code it is giving me following error
 
 Bad file descriptor - connect(2)
 
 username, password, and ipaddress are fine
 
 What I want is to take data from remote machine to server.
 
 Please Help me out.
 
 Thanks and Regards,
 Shri
 
What are you wanting to do?  SFTP or SSH?  From the code,
it appears that you're trying to move a file from point A to B.
Thus, here's a brief outline of the things that you can do with
SFTP:
 
require 'net/sftp'
 
  Net::SFTP.start('host', 'username', :password = 'password') do
 |sftp|
# upload a file or directory to the remote host
sftp.upload!(/path/to/local, /path/to/remote)
 
# download a file or directory from the remote host
sftp.download!(/path/to/remote, /path/to/local)
 
# grab data off the remote host directly to a buffer
data = sftp.download!(/path/to/remote)
 
# open and write to a pseudo-IO for a remote file
sftp.file.open(/path/to/remote, w) do |f|
  f.puts Hello, world!\n
end
 
# open and read from a pseudo-IO for a remote file
sftp.file.open(/path/to/remote, r) do |f|
  puts f.gets
end
 
# create a directory
sftp.mkdir! /path/to/directory
 
# list the entries in a directory
sftp.dir.foreach(/path/to/directory) do |entry|
  puts entry.longname
end
  end
 
Good luck,
 
-Conrad
 
  Can you upgrade the gem and retrying what you
  did before?  You can upgrade by doing the following:
 
  sudo gem update
 
  -Conrad
 


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[Rails] Re: export to excel

[KARTHIKEYAN RANGASWAMY]

try for the spreadsheet-excel gem .you can google for spreadsheet-excel
gem.You will get the sample code for it.if you dont get it just mail me i
will provide you the sample code

On Wed, Apr 8, 2009 at 2:57 PM, Daniel Bush dlb.id...@gmail.com wrote:



 2009/4/8 Sijo Kg rails-mailing-l...@andreas-s.net


 Hi
 I have some data to be exported as well as imported to/from my
 rails application to Excel.Could anybody please point me some good
 advise on how to do this..Also expect some good links on the same

 Thanks in advance
 Sijo
 --
 Posted via http://www.ruby-forum.com/.


 The exporting bit came up on the roro list recently. See the last post in
 the thread.  I've just been using csv format  and fastercsv myself with some
 visual basic to help the end user.  Often wondered about the xml format of
 excel as well...


 http://groups.google.com/group/rails-oceania/browse_thread/thread/9de19f779a944d2a/50438843fd8d4993?hl=en


 --
 Daniel Bush

 http://blog.web17.com.au
 http://github.com/danielbush/sifs/tree/master
 http://github.com/danielbush

 


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[Rails] Ruby Developer role - upto £60k - web 2.0 gr eenfield - London, UK

[simono...@googlemail.com]

Our exciting new Web 2.0 venture requires 2 strong Ruby-on-Rails gurus
who can bring their expertise to our growing team.

Main skills required:

. Ruby on Rails

. MYSQL (or equivalent)

. JavaScript using Prototype/Scriptaculous

. HTML/CSS

. Linux/Unix

. Subversion

. Pref TDD and/or BDD, Agile, Web 2.0 experience, Coldfusion or PHP

We will provide you with an excellent financial package, free quality
coffee, state of the art chairs(!), XBox360, Wii, LCD TV's, Rock Band
Guitar Hero, Mario Kart, football table, and so on!

Salary is upto £60k depending on how great you are at Ruby. Interviews
will take place ASAP, so what are you waiting for? Send your CV in the
first instance to simo...@psr-rec.com or call me on 0789 170 8160.

Thanks!




Simon Johnston
Director



PSR Ltd - A leading provider of IT Professionals  Talent Management
Solutions
a 30 St Georges Road I Wimbledon I London I SW19 4BD
t 0870 013 6380 f 0870 013 6381 m +44 (0)789 170 8160 e simo...@psr-
rec.com



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[Rails] Re: Multi Model Forms and Validations

[sshefer]

Just wanted to say that someone helped me with the solution here:
http://railsforum.com/viewtopic.php?id=29103

Apparently, it's as simple as:

def valid_or_nil?( model )
  model.nil? ? true : model.valid?
end

if @person.valid?  valid_or_nil?(@cat)  valid_or_nil?(@dog)
  Person.transaction do
@person.save!
@cat.save! unless @cat.nil?
@dog.save! unless @dog.nil?
  end
else
  FAIL
end

On Apr 8, 1:17 am, sshefer shai.she...@gmail.com wrote:
 Sure.

 My scenario is a bit different.

 I have an application form that needs to be filled in by a user.  If
 the user is not registered on my site I have a few fields that allow
 the user to quickly enter name and email and their account will be
 created when the application is submitted.  At the same time, the
 application allows a user to pick from a list of documents they've
 uploaded.  However, I also have fields incase a user would like to
 upload a document that is not on the list (to save them the hassle of
 going back, uploading and returning to the application).

 Therefore, my application will always have a new @application and
 sometimes a new @user or @document.  The document model is
 polymorphic.  The application belongs_to the user and has a field for
 document_id but I did not create an explicit relationship in the
 model.

 Thanks for any help.

 On Apr 8, 1:03 am, Ram yourstruly.vi...@gmail.com wrote:

  Hmmm.. Are Cat and Dog associated to the Person model?

   there may not always be a @cat or @dog

  Meaning the parameters for these models will be passed in from the
  form but they will be empty? In which case you can have a
  before_validation callback and check if all the params for these
  models are blank. If they are, then return false. This will still
  throw a Cat/Dog is invalid validation error. That can be handled by
  hacking into error_messages_for. Its all quite ugly but it works.
  I can tell you more if you can explain the context better.

  On Apr 7, 2:26 pm, sshefer shai.she...@gmail.com wrote:

   Jim Neath's walkthru (http://jimneath.org/2008/09/06/multi-model-forms-
   validations-in-ruby-on-rails/) talks about validating multiple objects
   before saving.  His example is below:

   if @person.valid?  @cat.valid?  @dog.valid?
     Person.transaction do
       @person.save!
       @cat.save!
       @dog.save!
     end
   else
     FAIL
   end

   I am trying to do something similar but in my situation there may not
   always be a @cat or @dog (there will always be a @person though).
   Does anyone know of a way that I can run the same validation but allow
   for the conditional presence of the 2 objects?

   Thanks.


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[Rails] Re: Problem with MYSQL after re-installing rails

[Gavin]

VICTORY!

Installed an earlier version of MYSQL (5.0.37) and it all seems to be
working fine now

Thanks for your help fred

On Apr 8, 9:59 am, Gavin ga...@thinkersplayground.com wrote:
 Yea - 32 bit version

 I tried installing the mysql gem with

 sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/
 mysql_config

 and it worked! - kind of

 Now when I run gem list it appears..

 actionmailer (2.3.2, 2.1.0)
 actionpack (2.3.2, 2.1.0)
 activerecord (2.3.2, 2.1.0)
 activerecord-jdbc-adapter (0.9.1)
 activerecord-jdbcmysql-adapter (0.9.1)
 activeresource (2.3.2, 2.1.0)
 activesupport (2.3.2, 2.1.0)
 arrayfields (4.7.2)
 builder (2.1.2)
 capistrano (2.5.5)
 cgi_multipart_eof_fix (2.5.0)
 chronic (0.2.3)
 cucumber (0.2.3)
 daemons (1.0.10)
 diff-lcs (1.1.2)
 fastthread (1.0.6)
 fattr (1.0.3)
 fixrbconfig (1.2)
 gem_plugin (0.2.3)
 highline (1.5.0)
 hoe (1.12.1)
 hpricot (0.8.1)
 jdbc-mysql (5.0.4)
 main (2.8.3)
 mocha (0.9.5)
 mongrel (1.1.5)

 mysql (2.7)

 net-scp (1.0.2)
 net-sftp (2.0.2)
 net-ssh (2.0.11)
 net-ssh-gateway (1.0.1)
 nifty-generators (0.2.3)
 nokogiri (1.2.3)
 orderedhash (0.0.6)
 packet (0.1.15)
 polyglot (0.2.5)
 rack (0.9.1)
 rails (2.3.2, 2.1.0)
 rake (0.8.4)
 redgreen (1.2.2)
 rspec (1.2.2)
 rspec-rails (1.2.2)
 rubyforge (1.0.3)
 rubygems-update (1.3.1)
 sources (0.0.1)
 sqlite3-ruby (1.2.4)
 systemu (1.2.0)
 term-ansicolor (1.0.3)
 treetop (1.2.5)
 webrat (0.4.3)
 ZenTest (4.0.0)

 However, when I try to run rake db:migrate or make a db query I get
 this error:

 !!! The bundled mysql.rb driver has been removed from Rails 2.2.
 Please install the mysql gem and try again: gem install mysql.
 rake aborted!
 dlsym(0x103290, Init_mysql): symbol not found - /usr/local/lib/ruby/
 gems/1.8/gems/mysql-2.7/lib/mysql.bundle

 Any ideas guys?

 On Apr 8, 8:13 am, Frederick Cheung frederick.che...@gmail.com
 wrote:

  On Apr 8, 12:25 am, Gavin ga...@thinkersplayground.com wrote: Hmmm - 
  have downloaded and re-installed MYSQL 5.1.33

  but did you get the 32bit version ? (and have you tried using --with-
  mysql-config=/path/to/mysql_config ?)

  Fred

   Still getting the same issue.
   In pref pane it shows that mysql is running.

   Can anybody think of anything else I can check/do?

   Really need to get my database back up and running soon :S

   Thanks

   On Apr 7, 8:31 pm, Frederick Cheung frederick.che...@gmail.com
   wrote:

On Apr 7, 7:36 pm, Dean Richardson rails-mailing-l...@andreas-s.net
wrote:

 Gem files will remain installed in 
 /Library/Ruby/Gems/1.8/gems/mysql-2.7
 for inspection.
 Results logged to /Library/Ruby/Gems/1.8/gems/mysql-2.7/gem_make.out

 Any suggestions for diagnosing my mistake here?

That sounds like a different issue  ( in Gavin's case it just the
headers/libs for mysql it can't locate) - maybe you don't have all of
the stuff from the Dev tools you need ?

Fred

 Thanks!

 Dean Richardson
 --
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[Rails] Re: export to excel

[Daniel Bush]

2009/4/8 Sijo Kg rails-mailing-l...@andreas-s.net


 Hi
 I have some data to be exported as well as imported to/from my
 rails application to Excel.Could anybody please point me some good
 advise on how to do this..Also expect some good links on the same

 Thanks in advance
 Sijo
 --
 Posted via http://www.ruby-forum.com/.


The exporting bit came up on the roro list recently. See the last post in
the thread.  I've just been using csv format  and fastercsv myself with some
visual basic to help the end user.  Often wondered about the xml format of
excel as well...

http://groups.google.com/group/rails-oceania/browse_thread/thread/9de19f779a944d2a/50438843fd8d4993?hl=en


-- 
Daniel Bush

http://blog.web17.com.au
http://github.com/danielbush/sifs/tree/master
http://github.com/danielbush

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[Rails] Re: How to pass data to Javascript variable from Ruby on Ra

[SpringFlowers AutumnMoon]

Chris Kottom wrote:
 The most straightforward way of doing what you want is: %= my_var %
 
 On Wed, Apr 8, 2009 at 7:31 AM, SpringFlowers AutumnMoon 

are you sure?  if  my_var contains a newline character, then the 
Javascript code becomes

var title = hello
world;

and it will break?  sorry i haven't used RoR for a long time so don't 
know if any quote is given for %= my_var %


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[Rails] Re: AR.find :include is adding stuff I don't want

[Frederick Cheung]

On 8 Apr 2009, at 10:44, Greg Willits wrote:

 @#$#! After writing a big long thing to prove there was no other  
 action
 taking place, and taking one more wider look before sending it to be
 sure I wasn't making an idiot of myself, I just scrolled down a little
 further in the model to re-discover an after_find I wrote which  
 would in
 fact touch assets  extras.

 I had just so compartmentalized the :include thing in my mind, I  
 wasn't
 remembering after_find.

 Egads. So sorry to waste your time Fred. But proving there was no log
 statement question pushed me to at least solve the (not so puzzling)
 puzzle. Thanks.

D'oh! Happens to all of us :-)

Fred


 -- gw




 -- 
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[Rails] [ActiveRecord] strange issue, would like to understand before I wake up...

[Erwin]

running 2.3.2

simple case   (db table created :  'emails'  with a :type field)

I have the following Email model

class Email  ActiveRecord::Base

end

class RequestEmail  Email

end

TESTING in the console :
script/console
Loading development environment (Rails 2.3.2)
 Email.new
= #Email id: nil, sender_email: nil, subject: nil, content: nil,
user_id: nil, created_at: nil, updated_at: nil, title: mr,
firstname: , lastname: Anonymous, type: nil(Note : type is
nil, not Email ... ?)
 RequestEmail.new
= #RequestEmail id: nil, sender_email: nil, subject: nil, content:
nil, user_id: nil, created_at: nil, updated_at: nil, title: mr,
firstname: , lastname: Anonymous, type: RequestEmail
 exit

now TESTING again..
script/console
Loading development environment (Rails 2.3.2)
 RequestEmail.new
NameError: uninitialized constant RequestEmail
...const_missing

I'll appreciate some feedback , should I buy a 2nd glass ?  LOL

thanks

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[Rails] Re: Testing RJS

[Phlip]

David wrote:

 I have some questions about testing RJS. First of all, just
 generally, how important is testing RJS?  It seems, that for effects
 at least, if I can see that the effect is working, then that is good
 enough for me? 

In View testing in general, there are some overlapping rules of thumb:

  - do test what you don't want to break
  - don't test glitz (colors, shiny things, animated GIFs, etc.)
  - do test that your business-side variables got embedded correctly
  - do test navigation (such as links and redirect_to)

The goal is if you add new features and make a mistake the code will break as 
early as possible. But if you break glitz, you can easily see it's broke, and 
you can easily fix it without affecting your new features.

  I would like to test certain RJS redirect_to's
 however.  I came across the ARTS plugin.  Has anyone had any
 experience using this with rails 2.2 or 2.3? 

Yes; just install the plugin.

After you start using assert_rjs, look up my assert_rjs_. It's nearly a drop-in 
replacement for the most common RJS situations, but it's much more powerful and 
accurate.

http://groups.google.com/group/rubyonrails-talk/msg/c2fba12dd5e2735a

It does not test redirect_to, but if it did then it would not be much more 
powerful than assert_rjs Classic, so use that for now.

  I saw somewhere that it
 was included in 2.2, but when I try:
 
 assert_rjs :redirect_to, :action = 'show'
 
 I get an unknown method error.

The documentation for the ARTS will tell you how to install a plugin. Something 
to do with script/plugin install...

assert_rjs_ is a gem, not a plugin, because test-side things don't need to 
deploy to your server. Use assert_rjs_ when you start working with replace_html.

-- 
   Phlip


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[Rails] Re: Restful design is a headache?

[Ar Chron]

view one = show, view many = index, whether its the admin viewing 
products, or a user viewing products, there's just one HTTP verb and url 
pattern in use...
/products/ as a GET request.

If it were /products/ as a POST request, it better be accompanied by 
sufficient parameters to define the new product resource, since that's a 
RESTful create request pattern.

The basis of REST is the four HTTP 'verbs' GET, PUT, POST, DELETE.

Rails scaffolding builds REST out with 'standard' methods of:

index, show, new, edit, create, update, destroy

which pair a url pattern with one of the four HTTP request types

index:
/plural_resource_name/ + GET - return a collection of the desired 
resource

create:
/plural_resource_name/ + POST - create a new instance of the resource

new:
/plural_resource_name/new + GET - return a new instance of the resource

show:
/plural_resource_name/id + GET - return a single instance of the 
resource

update:
/plural_resource_name/id + PUT - update a single instance of the 
resource

destroy:
/plural_resource_name/id + DELETE - destroy a single instance of the 
resource

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[Rails] Finding record between 2 dates

[Vaibhav Deshpande]

I am very new to ruby on rails programming,
I am using the oracle as my database,

In my project there r 2 text box fields and in first and second text
boxes i want the date field to be enter by the client and want to
display the record between those 2 dates how can i do the same, plz be
more specific

Thanks in advance,
Vaibhavi...

Not so good not so bad
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[Rails] Re: update page with results as they are scraped

[Frederick Cheung]

On Apr 8, 12:10 pm, Adam Akhtar rails-mailing-l...@andreas-s.net
wrote:
 ive found that this pattern is called multi stage download. Its used by
 kayak.com which is famous for its user interface. That site makes
 finding cheap flights actually enjoyable.

 Here are some general background links i found

 this discusses the pattern in general

 http://ajaxpatterns.org/Multi-Stage_Download#Code_Example

 and this is a review of the user interface for kayak

 http://konigi.com/podcast/kayak-com

 But i still dont know where to start looking for a rails implementation
 how to.

 Where should i start looking (ive googled for ages, cant find anything
 appropriate)

Given that this is all client side, what would a rails implementation
be (maybe the odd helper function but the lack of them certainly
shouldn't stop you getting started).

As far as your particular case goes all you need is something on the
page that every however often pings your controller to say 'do you
have any more data for me'. It would be wise to push the actual
scraping into a separate process

Fred

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[Rails] Re: update page with results as they are scraped

[Adam Akhtar]

ive found that this pattern is called multi stage download. Its used by 
kayak.com which is famous for its user interface. That site makes 
finding cheap flights actually enjoyable.

Here are some general background links i found

this discusses the pattern in general

http://ajaxpatterns.org/Multi-Stage_Download#Code_Example

and this is a review of the user interface for kayak

http://konigi.com/podcast/kayak-com

But i still dont know where to start looking for a rails implementation 
how to.

Where should i start looking (ive googled for ages, cant find anything 
appropriate)

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[Rails] Re: Rails 2.3 Upgrade Issue with MemCache

[tomrossi7]

Steve,

Try throwing require 'memcache' in your environment.rb?  I think that
is how I finally got around it...

Thanks,
Tom

On Apr 7, 11:19 pm, Steve Odom steve.o...@gmail.com wrote:
 I'm having the same issue as Tom, but I'm not using Starling. I'm
 using spawn. I don't have anything in an initializer to wrap in a
 after_initialize.

 Any ideas how to get workling to work in 2.3?

 Steve

 On Apr 7, 7:14 pm, Freddy Andersen fre...@cfandersen.com wrote:

  I'm not sure why this happens, BUT in rails 2.3.2 you have to wrap
  your Workling loader a after_init like so:

  config.after_initialize do
    Workling::Remote.dispatcher =
  Workling::Remote::Runners::StarlingRunner.new
  end

  On Mar 20, 6:42 am, TomRossi7 t...@themolehill.com wrote:

   One of the plugins I use is Workling.  It throws the following error
   when I try to run it under 2.3:

   /Library/Ruby/Gems/1.8/gems/activesupport-2.3.2/lib/active_support/
   dependencies.rb:443:in `load_missing_constant': uninitialized 
   constantMemCache(NameError)

   The offending line is:

         @@memcache_client_class ||= ::MemCache

   I don't know a lot aboutmemcache, so I'm not sure what changed with
   2.3 that could cause the error.  Anyone have some ideas?

   Thanks!
   Tom
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[Rails] Re: Problem with MYSQL after re-installing rails

[Gavin]

Yea - 32 bit version

I tried installing the mysql gem with

sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/
mysql_config

and it worked! - kind of

Now when I run gem list it appears..


actionmailer (2.3.2, 2.1.0)
actionpack (2.3.2, 2.1.0)
activerecord (2.3.2, 2.1.0)
activerecord-jdbc-adapter (0.9.1)
activerecord-jdbcmysql-adapter (0.9.1)
activeresource (2.3.2, 2.1.0)
activesupport (2.3.2, 2.1.0)
arrayfields (4.7.2)
builder (2.1.2)
capistrano (2.5.5)
cgi_multipart_eof_fix (2.5.0)
chronic (0.2.3)
cucumber (0.2.3)
daemons (1.0.10)
diff-lcs (1.1.2)
fastthread (1.0.6)
fattr (1.0.3)
fixrbconfig (1.2)
gem_plugin (0.2.3)
highline (1.5.0)
hoe (1.12.1)
hpricot (0.8.1)
jdbc-mysql (5.0.4)
main (2.8.3)
mocha (0.9.5)
mongrel (1.1.5)

mysql (2.7)

net-scp (1.0.2)
net-sftp (2.0.2)
net-ssh (2.0.11)
net-ssh-gateway (1.0.1)
nifty-generators (0.2.3)
nokogiri (1.2.3)
orderedhash (0.0.6)
packet (0.1.15)
polyglot (0.2.5)
rack (0.9.1)
rails (2.3.2, 2.1.0)
rake (0.8.4)
redgreen (1.2.2)
rspec (1.2.2)
rspec-rails (1.2.2)
rubyforge (1.0.3)
rubygems-update (1.3.1)
sources (0.0.1)
sqlite3-ruby (1.2.4)
systemu (1.2.0)
term-ansicolor (1.0.3)
treetop (1.2.5)
webrat (0.4.3)
ZenTest (4.0.0)

However, when I try to run rake db:migrate or make a db query I get
this error:


!!! The bundled mysql.rb driver has been removed from Rails 2.2.
Please install the mysql gem and try again: gem install mysql.
rake aborted!
dlsym(0x103290, Init_mysql): symbol not found - /usr/local/lib/ruby/
gems/1.8/gems/mysql-2.7/lib/mysql.bundle


Any ideas guys?




On Apr 8, 8:13 am, Frederick Cheung frederick.che...@gmail.com
wrote:
 On Apr 8, 12:25 am, Gavin ga...@thinkersplayground.com wrote: Hmmm - have 
 downloaded and re-installed MYSQL 5.1.33

 but did you get the 32bit version ? (and have you tried using --with-
 mysql-config=/path/to/mysql_config ?)

 Fred

  Still getting the same issue.
  In pref pane it shows that mysql is running.

  Can anybody think of anything else I can check/do?

  Really need to get my database back up and running soon :S

  Thanks

  On Apr 7, 8:31 pm, Frederick Cheung frederick.che...@gmail.com
  wrote:

   On Apr 7, 7:36 pm, Dean Richardson rails-mailing-l...@andreas-s.net
   wrote:

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/mysql-2.7
for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/mysql-2.7/gem_make.out

Any suggestions for diagnosing my mistake here?

   That sounds like a different issue  ( in Gavin's case it just the
   headers/libs for mysql it can't locate) - maybe you don't have all of
   the stuff from the Dev tools you need ?

   Fred

Thanks!

Dean Richardson
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[Rails] job oppurtunity for Ruby on Rails developers

[leapfrogcaree...@googlemail.com]

Hi there,

I have job oppurtunities for ruby on rails developers, with one of my
client based in London. if you are interested then Email your resume
to:

t...@leapfrogcareers.com

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[Rails] Rename file name with file_column plugin

[Brijesh Shah]

Hi All

Is there any way to rename file name during uploaded by file_column
plugin
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[Rails] Re: strange issue, would like to understand before I wake up...

[Erwin]

found a trcik , but I don't understand why 

In my ApplicationController
require_dependency 'email'

On 8 avr, 14:11, Erwin yves_duf...@mac.com wrote:
 running 2.3.2

 simple case   (db table created :  'emails'  with a :type field)

 I have the following Email model

 class Email  ActiveRecord::Base
 
 end

 class RequestEmail  Email
 
 end

 TESTING in the console :
 script/console
 Loading development environment (Rails 2.3.2) Email.new

 = #Email id: nil, sender_email: nil, subject: nil, content: nil,
 user_id: nil, created_at: nil, updated_at: nil, title: mr,
 firstname: , lastname: Anonymous, type: nil    (Note : type is
 nil, not Email ... ?) RequestEmail.new

 = #RequestEmail id: nil, sender_email: nil, subject: nil, content:
 nil, user_id: nil, created_at: nil, updated_at: nil, title: mr,
 firstname: , lastname: Anonymous, type: RequestEmail

  exit

 now TESTING again..
 script/console
 Loading development environment (Rails 2.3.2) RequestEmail.new

 NameError: uninitialized constant RequestEmail
 ...const_missing

 I'll appreciate some feedback , should I buy a 2nd glass ?  LOL

 thanks
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[Rails] Testing RJS

[David]

I have some questions about testing RJS.  First of all, just
generally, how important is testing RJS?  It seems, that for effects
at least, if I can see that the effect is working, then that is good
enough for me?  I would like to test certain RJS redirect_to's
however.  I came across the ARTS plugin.  Has anyone had any
experience using this with rails 2.2 or 2.3?  I saw somewhere that it
was included in 2.2, but when I try:

assert_rjs :redirect_to, :action = 'show'

I get an unknown method error.
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[Rails] Re: Testing RJS

[Frederick Cheung]

On Apr 8, 10:31 am, David dly...@gmail.com wrote:
 I have some questions about testing RJS.  First of all, just
 generally, how important is testing RJS?  It seems, that for effects
 at least, if I can see that the effect is working, then that is good
 enough for me?  I would like to test certain RJS redirect_to's
 however.  I came across the ARTS plugin.  Has anyone had any
 experience using this with rails 2.2 or 2.3?  I saw somewhere that it
 was included in 2.2, but when I try:

I still use arts. I don't think it is quite true to say that 2.2/2.3
(and I think 2.1)  replaces arts, although it does have similar
functionality via assert_select_rjs (don't remember if that covers
redirect_to though)

I'd say testing is as important as it is elsewhere (although I would
probably worry less about pure eye candy than about stuff that would
impact usage (ie this div should be shown and this button enabled)).

Fred

 assert_rjs :redirect_to, :action = 'show'

 I get an unknown method error.
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[Rails] Localization problem in nested-attributes validation

[benjamin.meichs...@googlemail.com]

Hey,

I recently run into a problem with the new feature for activerecord:
nested attributes. When the nested object (Activist) is invalid, the
error messages are shown, but the object name is noch translated. (My
project is in german)
So I get int the error box:

Bitte überprüfen Sie die folgenden Felder:

* Activist surename muss ausgefüllt werden
* Activist city muss ausgefüllt werden

In my appropriate localization file (de.yml) I defined the object/
attributes names correctly.

de:
  activerecord:
models:
  protest_mail: Protestmail
  activist: Aktivistin
attributes:
  protest_mail:
subject: Betreff
body: Inhalt
  activist:
surename: Nachname
city: Stadt

The error messages for protest_mail are transalated correctly, so I
guess, the problems applies to the new nested-attributes feature.

Any idea how to fix this?

best regards,
benni
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[Rails] Help with Redbox Styling and auto-resizing like Lightbox?

[Ram]

Hi all,

Redbox I think is by far the easiest to implement in Rails as a light-
box/modal pop-up solution. Even more so if you want to avoid using
JQuery.

It would however be sweeter if it has better styling and that cool
auto-resizing thing that lightbox does.
I couldnt find anything online that addressed this problem (although I
HAVE seen the feature in many sites). So I thought ill start a
discussion here..
Some notes..

-Lightbox accomplishes auto-resizing by using the image's size
attributes. This however, is not available in the case of forms (which
is probably the biggest use-case for something like Redbox in Rails
apps).

-How can the resizing visual effect be accomplished using Prototype
+Scriptaculous?

-RB_window is the css id in redbox.css which ive been playing with for
repositioning. Thats probably where most of the styling for this
should go (?)

-Using the original code, the redbox always appears at the top of the
viewport/window and widthwise center of it regardless of the scroll
position (dont know about others). How does one make it appear at the
center of the viewport (heightwise as well as widthwise) no matter the
scroll position.

Hope this generates enough interest to answer some of these questions.




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[Rails] Re: Help with acts_as_audited

[Peter Fitzgibbons]

Sounds like you may need to create a model over the associationlike
cats_dogs.rb:

class CatDog  ActiveRecord::Base
...
end

You'll probably need to extend your habtm table with an auto-increment
surrogate key so that acts_as_audited can play well with the primary key

Peter Fitzgibbons
(847) 687-7646
Email: peter.fitzgibb...@gmail.com
IM GTalk: peter.fitzgibbons
IM Yahoo: pjfitzgibbons
IM MSN: pjfitzgibb...@hotmail.com
IM AOL: peter.fitzgibb...@gmail.com


On Sun, Feb 22, 2009 at 3:10 PM, Diego Bernardes 
rails-mailing-l...@andreas-s.net wrote:


 Hi everyone,


 Im using the plugin acts_as_audited to audit my whole program, but i
 have a problem, when the change is in a association table (has and
 belongs to many)  the change isnt captured by the plugin, anyone know
 any fast hot fix to this?

 Thanks!
 --
 Posted via http://www.ruby-forum.com/.

 


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[Rails] Re: Ajax Rails

[esdevs]

ok - so I changed the code to the below and getting similar results.
What I think is happening is that because it is a partial that is
being called (in this example 3 times) but the div is static, it is
only updating the first one (i.e. div 1).  Is there a way to make a
dynamic div?  New code below...

%= link_to_function post.title, Element.toggle('div 1') %
div id=div 1 style=display: none;
  %= post.link %
/div

On Apr 8, 3:23 am, Frederick Cheung frederick.che...@gmail.com
wrote:
 On Apr 8, 5:45 am, esdevs seanpdev...@gmail.com wrote: ok - I am trying to 
 do something seemingly straight forward.
  Essentially I want to list out a bunch of items and for each item
  individually, if the user clicks on it, the corresponding web link
  will appear underneath -- if the user clicks on the item again, then
  the weblink disappears.  This should work for each item in the list.
  I have tried but to no avail - below is a vid clip of what is
  happening as well as the code that I am using -- any help is greatly
  appreciated

 Well by the looks of things you have multiple divs with the same id
 (never a good) idea, you're using link_to_remote but not actually
 making an ajax call (link_to_function might be more appropriate) and
 if my memory is correct and you want to select that link, next()
 selects siblings whereas it looks like you want to select children
 (which is what down does)

 Fred



 http://www.screentoaster.com/watch/stU0…BeQlVeXV5e

  (partial _post.html.erb)
  h2%= link_to_remote(#{post.title}, :after = $('link').next
  (1).toggle()) %/h2
  div id=link style=display: none;
    %= post.link %
  /div
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[Rails] Re: Ajax Rails

[esdevs]

never mind - figured it out - the issue was in the div (and made them
dynamic through below)...works -- thanks!

h3%= link_to_function post.title, Element.toggle('#{post.title}')
%/h3
div id=%= post.title % style=display: none;
  %= post.link %
/div


On Apr 8, 9:01 am, esdevs seanpdev...@gmail.com wrote:
 ok - so I changed the code to the below and getting similar results.
 What I think is happening is that because it is a partial that is
 being called (in this example 3 times) but the div is static, it is
 only updating the first one (i.e. div 1).  Is there a way to make a
 dynamic div?  New code below...

 %= link_to_function post.title, Element.toggle('div 1') %
 div id=div 1 style=display: none;
   %= post.link %
 /div

 On Apr 8, 3:23 am, Frederick Cheung frederick.che...@gmail.com
 wrote:



  On Apr 8, 5:45 am, esdevs seanpdev...@gmail.com wrote: ok - I am trying 
  to do something seemingly straight forward.
   Essentially I want to list out a bunch of items and for each item
   individually, if the user clicks on it, the corresponding web link
   will appear underneath -- if the user clicks on the item again, then
   the weblink disappears.  This should work for each item in the list.
   I have tried but to no avail - below is a vid clip of what is
   happening as well as the code that I am using -- any help is greatly
   appreciated

  Well by the looks of things you have multiple divs with the same id
  (never a good) idea, you're using link_to_remote but not actually
  making an ajax call (link_to_function might be more appropriate) and
  if my memory is correct and you want to select that link, next()
  selects siblings whereas it looks like you want to select children
  (which is what down does)

  Fred

  http://www.screentoaster.com/watch/stU0…BeQlVeXV5e

   (partial _post.html.erb)
   h2%= link_to_remote(#{post.title}, :after = $('link').next
   (1).toggle()) %/h2
   div id=link style=display: none;
     %= post.link %
   /div
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[Rails] Re: Alternative to render :update

[Robert Walker]

Jaryl Sim wrote:
 If that's the case, then you should split it up into multiple
 requests. I believe that you can only send back one response per
 request, so that is an inherent problem.

Sure that's the case, that's how HTTP protocol works. One response for 
one request. I think of it as similar to an event loop, where each cycle 
through the loop processes one event.

The difference is that an event loop is continuous, where a 
request-response cycle sleeps between each cycle. In other words the 
event loop runs continuously checking an event queue, where as HTTP 
sleeps until it is sent a request, which causes it to awake and 
process the request and generate a response. After the response is 
processes it sleeps again until awoken by another request.

 Perhaps you may try sending a request once the a valid file is
 selected in the file upload field.

As far as I know, the behavior you're after is going to require some 
client-side code. I know there are a number of solutions floating 
around, some taking advantage of Flash (as I assume the swfupload does). 
Some others I've heard of make use of a Java applet. But, I would 
imagine this behavior could be built with JavaScript/AJAX.

In any case I think the brains of this feature will need to be 
implemented client-side. The AJAX should be able to send requests to a 
server-side action responsible to accepting one file, and the 
client-side code would make one request per file, plus additional 
request to manipulate the DOM.

Please note this is all speculation. I have no proof-of-concept code to 
offer.
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[Rails] Re: update page with results as they are scraped

[Adam Akhtar]

 Given that this is all client side, what would a rails implementation
 be (maybe the odd helper function but the lack of them certainly
 shouldn't stop you getting started).
 
 As far as your particular case goes all you need is something on the
 page that every however often pings your controller to say 'do you
 have any more data for me'. It would be wise to push the actual
 scraping into a separate process
 

Thanks Frederick,

cna you (or anybody reading this) provide me with some helper names or 
subject names that i should be investigating re: pining the controller?

is this a common rails thing?

thanks so far for your help





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[Rails] Re: update page with results as they are scraped

[Adam Akhtar]

pining the controller?

should have read

PINGING the controller.

sorry
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[Rails] Re: Ajax Rails

[Robert Walker]

esdevs wrote:
 never mind - figured it out - the issue was in the div (and made them
 dynamic through below)...works -- thanks!
 
 h3%= link_to_function post.title, Element.toggle('#{post.title}')
 %/h3
 div id=%= post.title % style=display: none;
   %= post.link %
 /div

Just make sure that %= post.title % is unique for the page.

Also note that a cleaner solution (assuming post is an ActiveRecord 
subclass) is to use div_for since it will automatically generate a 
unique id for your div representing your post:

http://www.railsbrain.com/api/rails-2.3.2/doc/index.html?a=M002465name=div_for
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[Rails] Re: Rails 2.3 Upgrade Issue with MemCache

[Steve Odom]

Thanks Tom. The crappy part is I'm not using memcache for anything at
the moment.

Steve

On Apr 8, 7:31 am, tomrossi7 t...@themolehill.com wrote:
 Steve,

 Try throwing require 'memcache' in your environment.rb?  I think that
 is how I finally got around it...

 Thanks,
 Tom

 On Apr 7, 11:19 pm, Steve Odom steve.o...@gmail.com wrote:

  I'm having the same issue as Tom, but I'm not using Starling. I'm
  using spawn. I don't have anything in an initializer to wrap in a
  after_initialize.

  Any ideas how to get workling to work in 2.3?

  Steve

  On Apr 7, 7:14 pm, Freddy Andersen fre...@cfandersen.com wrote:

   I'm not sure why this happens, BUT in rails 2.3.2 you have to wrap
   your Workling loader a after_init like so:

   config.after_initialize do
     Workling::Remote.dispatcher =
   Workling::Remote::Runners::StarlingRunner.new
   end

   On Mar 20, 6:42 am, TomRossi7 t...@themolehill.com wrote:

One of the plugins I use is Workling.  It throws the following error
when I try to run it under 2.3:

/Library/Ruby/Gems/1.8/gems/activesupport-2.3.2/lib/active_support/
dependencies.rb:443:in `load_missing_constant': uninitialized 
constantMemCache(NameError)

The offending line is:

      @@memcache_client_class ||= ::MemCache

I don't know a lot aboutmemcache, so I'm not sure what changed with
2.3 that could cause the error.  Anyone have some ideas?

Thanks!
Tom
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[Rails] Re: Alternative to render :update

[Jack Bauer]

Thanks everyone for the replies.

For now I'm just going with good 'ol standard HTML response until I 
figure out what I'm going to do.
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[Rails] Re: update page with results as they are scraped

[Frederick Cheung]

On 8 Apr 2009, at 14:28, Adam Akhtar wrote:



 Given that this is all client side, what would a rails implementation
 be (maybe the odd helper function but the lack of them certainly
 shouldn't stop you getting started).

 As far as your particular case goes all you need is something on the
 page that every however often pings your controller to say 'do you
 have any more data for me'. It would be wise to push the actual
 scraping into a separate process


 Thanks Frederick,

 cna you (or anybody reading this) provide me with some helper names or
 subject names that i should be investigating re: pining the  
 controller?

 is this a common rails thing?

 thanks so far for your help


To make things clear, pinging just means (in this context) make a  
request every so often. If you're using prototype PeriodicalExecuter  
is a good way to go (periodically_call_remote is a helper for that)


Fred




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[Rails] What does the ' %s ' mean ?

[Tom Ha]

Hi there,

can anyone explain to me how I have to understand the:

  %s

in the following code line:

  yield :error, There was a problem resending your activation code,
please try again or %s., resend_activation_path

Whant does it stand for, what does it mean, what does it do?

Thanks!
Tom
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[Rails] Re: Rails 2.3 Upgrade Issue with MemCache

[tomrossi7]

Ugh.  But did it solve the problem?

On Apr 8, 9:59 am, Steve Odom steve.o...@gmail.com wrote:
 Thanks Tom. The crappy part is I'm not using memcache for anything at
 the moment.

 Steve

 On Apr 8, 7:31 am, tomrossi7 t...@themolehill.com wrote:

  Steve,

  Try throwing require 'memcache' in your environment.rb?  I think that
  is how I finally got around it...

  Thanks,
  Tom

  On Apr 7, 11:19 pm, Steve Odom steve.o...@gmail.com wrote:

   I'm having the same issue as Tom, but I'm not using Starling. I'm
   using spawn. I don't have anything in an initializer to wrap in a
   after_initialize.

   Any ideas how to get workling to work in 2.3?

   Steve

   On Apr 7, 7:14 pm, Freddy Andersen fre...@cfandersen.com wrote:

I'm not sure why this happens, BUT in rails 2.3.2 you have to wrap
your Workling loader a after_init like so:

config.after_initialize do
  Workling::Remote.dispatcher =
Workling::Remote::Runners::StarlingRunner.new
end

On Mar 20, 6:42 am, TomRossi7 t...@themolehill.com wrote:

 One of the plugins I use is Workling.  It throws the following error
 when I try to run it under 2.3:

 /Library/Ruby/Gems/1.8/gems/activesupport-2.3.2/lib/active_support/
 dependencies.rb:443:in `load_missing_constant': uninitialized 
 constantMemCache(NameError)

 The offending line is:

       @@memcache_client_class ||= ::MemCache

 I don't know a lot aboutmemcache, so I'm not sure what changed with
 2.3 that could cause the error.  Anyone have some ideas?

 Thanks!
 Tom
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[Rails] Re: Read remote zip

[RobR]

Those are good points.

For now, I whipped up something simple which basically:
begin
`wget #{url}`
`unzip #{localfilename}`
# do stuff with file (FasterCSV)
rescue
ensure
# delete local files
end

I don't like relying on `` but sometimes it's just too easy to pass
up.
My original message was trying to avoid `wget url`

Thanks!


On Apr 7, 9:53 pm, Phlip phlip2...@gmail.com wrote:
 RobRwrote:
  I'd like to decompress the contents of:
 http://host.com/file.zip

  in memory without having to download the file (e.g. `wget`) first.
  Suggestions?

 Without having to download the file first is an example of premature
 optimization. It is the root of all evil.

 On any OS configured to be a server (as opposed to a wrist watch, for example)
 all memory and files map each other virtually. If you Net::HTTP read() that 
 file
 to a file location, the OS will generally reserve a slot on the hard drive, 
 then
 put the file into its matching memory location.

 In the next split microsecond, your code reads that file and unzips it, using
 only the memory image. If you then delete the file, it may never reach the 
 hard
 drive.

 By that analysis, if you write simple code that downloads the file and hits it
 with common tools, you can finish your feature faster. However, there are also
 situations where you _don't_ know which option is faster.

 Write the simpler code anyway, and then profile it to identify the real
 bottlenecks. They are invariably _not_ the places you would have guessed.
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[Rails] Re: Ajax Rails

[Phlip]

 div id=%= post.title % style=display: none;

 Just make sure that %= post.title % is unique for the page.

An id must conform to roughly the same rules as a JavaScript identifier. No 
leading numbers, no spaces, no funny business. Of course no browser bothers to 
enforce that, but such rules exist to help us Rails programmers write rigorous 
code that goes far beyond browser forgiveness.

div id=post_%= post.id % style=display: none;


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[Rails] Re: What does the ' %s ' mean ?

[Phlip]

Tom Ha wrote:

   yield :error, There was a problem resending your activation code,
 please try again or %s., resend_activation_path
 
 Whant does it stand for, what does it mean, what does it do?

Google for printf, alone.


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[Rails] Re: What does the ' %s ' mean ?

[Daniel Bush]

2009/4/9 Tom Ha rails-mailing-l...@andreas-s.net


 Hi there,

 can anyone explain to me how I have to understand the:

  %s

 in the following code line:

  yield :error, There was a problem resending your activation code,
 please try again or %s., resend_activation_path

 Whant does it stand for, what does it mean, what does it do?


I'm not familiar with that particular bit of code, but I think this relates
to the % method for String classes in ruby.  See
http://www.ruby-doc.org/core/classes/String.html#M000785 .

This is ruby's way of doing format control letters and modifiers.  If you've
programmed in C etc or something like awk, you often use these in print
statements (eg printf) to format strings and numbers etc.
Whenever I have to look these up I check out the gawk reference - here's one
online:
http://www.gnu.org/software/gawk/manual/gawk.html#Control-Letters

Simple example in ruby:

foo%s % bar
= foobar

foo%05d % 1
= foo1

-- 
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http://blog.web17.com.au
http://github.com/danielbush/sifs/tree/master
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[Rails] Calendar control

[Sushrut Sathe]

what is sedu gem?
how to get that  use calendar control
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[Rails] Using builder templates outside of controller

[Adriano]

Hi,

I'm using a builder template to generate atom feeds.

So far so good, but I'd like to use the template inside a rake task to
generate static files every 10 minutes or so.

Would anyone care to suggest a Rails idiomatic way to do it?

Thanks!

--
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[Rails] Errors not logged to the screen in dev mode in 2.3.2

[Davide Benini]

I've just upgraded a Rails 2.0.2 app to Rails 2.3.2 to take advantage of
the I18n framework.
I had to change application.rb  application_controller.rb, after that
Mongrel launches.
Still, I have a problem. Even if I launch in development mode, I don't
see errors logged to the screen, I get the Something went wrong page.
Any suggestion?
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[Rails] Re: Ajax Rails

[Daniel Bush]

2009/4/9 Phlip phlip2...@gmail.com


  div id=%= post.title % style=display: none;

  Just make sure that %= post.title % is unique for the page.

 An id must conform to roughly the same rules as a JavaScript identifier. No
 leading numbers, no spaces, no funny business. Of course no browser bothers
 to
 enforce that, but such rules exist to help us Rails programmers write
 rigorous
 code that goes far beyond browser forgiveness.

 div id=post_%= post.id % style=display: none;

 Just to complicate things, it was recommended in the past not to use
underscores for id and class names because of the css specs.
http://devedge-temp.mozilla.org/viewsource/2001/css-underscores/
I don't think it's a problem these days but I started to hyphenate in place
of underscoring because I noticed my syntax highlighter didn't like
underscores which led me to this whole weird issue.

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[Rails] Re: Finding record between 2 dates

[Jaryl Sim]

You can do this very easily with a named scope in your model:

named_scope :between, lambda {|start_date, end_date| {:conditions =
[created_at BETWEEN :start AND :end, {:start = start_date, :end =
end_date}]}}

On Apr 8, 5:51 pm, Vaibhav Deshpande rails-mailing-l...@andreas-
s.net wrote:
 I am very new to ruby on rails programming,
 I am using the oracle as my database,

 In my project there r 2 text box fields and in first and second text
 boxes i want the date field to be enter by the client and want to
 display the record between those 2 dates how can i do the same, plz be
 more specific

 Thanks in advance,
 Vaibhavi...

 Not so good not so bad
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[Rails] Re: Ajax Rails

[Frederick Cheung]

On 8 Apr 2009, at 15:31, Phlip wrote:


 div id=%= post.title % style=display: none;

 Just make sure that %= post.title % is unique for the page.

 An id must conform to roughly the same rules as a JavaScript  
 identifier. No
 leading numbers, no spaces, no funny business. Of course no browser  
 bothers to
 enforce that, but such rules exist to help us Rails programmers  
 write rigorous
 code that goes far beyond browser forgiveness.

 div id=post_%= post.id % style=display: none;

Or use the div_for helper

Fred


 


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[Rails] Re: [ActiveRecord] strange issue, would like to understand before I wake up...

[Frederick Cheung]

On 8 Apr 2009, at 13:11, Erwin wrote:

 TESTING in the console :
 script/console
 Loading development environment (Rails 2.3.2)
 Email.new
 = #Email id: nil, sender_email: nil, subject: nil, content: nil,
 user_id: nil, created_at: nil, updated_at: nil, title: mr,
 firstname: , lastname: Anonymous, type: nil(Note : type is
 nil, not Email ... ?)
 RequestEmail.new
 = #RequestEmail id: nil, sender_email: nil, subject: nil, content:
 nil, user_id: nil, created_at: nil, updated_at: nil, title: mr,
 firstname: , lastname: Anonymous, type: RequestEmail
 exit

 now TESTING again..
 script/console
 Loading development environment (Rails 2.3.2)
 RequestEmail.new
 NameError: uninitialized constant RequestEmail
 ...const_missing

 I'll appreciate some feedback , should I buy a 2nd glass ?  LOL


If you try an eval a constant that does not exist const_missing is  
called (which by default raises NameError)
Rails implements a const_missing that tries to load the file  
containing the constant for you. Rails can't guess where you've put  
your models, so this only works if you stick to the conventions:  
email.rb contains Email, FooController is in foo_controller.rb etc.

If you use Email before RequestEmail then email.rb is loaded (which  
defines both those classes) because Rails knows to load email.rb is  
const_missing triggers on Email. WHen you do things the other way  
round rails does not know what to do with RequestEmail since there is  
no request_email.rb. require_dependency works because it loads email.rb

Fred

 thanks

 


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[Rails] Re: What does the ' %s ' mean ?

[Tom Ha]

Thanks a lot!
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[Rails] Re: update page with results as they are scraped

[Jack Bauer]

I do something similar in one of my apps. The way I handle it is using 
periodically_call_remote every 6 seconds and check it against a 
controller action which looks at the DB to see if any new records were 
added for that user since the last time it checked. If there are, do a 
render :update |page| and add an insert_html with the new record on top.

Naturally you can increase or decrease the time between checks, but I 
figure 5-10 seconds should be good for anyone.

For my specific app, if I was scraping 5 items specifically, the 
periodically_call_remote function would turn itself off after I returned 
5 records.
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[Rails] Re: Finding record between 2 dates

[Robert Walker]

Vaibhav Deshpande wrote:
 I am very new to ruby on rails programming,
 I am using the oracle as my database,
 
 In my project there r 2 text box fields and in first and second text
 boxes i want the date field to be enter by the client and want to
 display the record between those 2 dates how can i do the same, plz be
 more specific

I'm not sure if this is an issue or not, but note that Oracle's DATE 
field is also used for storing DATETIME. Maybe the Rails Oracle adaptor 
handles this properly, but I just wanted to mention it in case you see 
weird behavior.

 I am using the oracle as my database,

P. S. I wish my application could use The Oracle as its database. It 
would always get the correct response even if it doesn't know what to 
ask. ;-)

http://www.imdb.com/character/ch765/
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[Rails] Re: Calendar control

[Robert Walker]

Sushrut Sathe wrote:
 what is sedu gem?

I've never heard of a sedu gem and Google search turns up nothing 
interesting.

 how to get that  use calendar control

jQuery UI appears to have a nice calendar control. 
http://jqueryui.com/demos/datepicker/
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[Rails] Re: initializing collection_select

[LukeG]

Thanks for the replies. The code, as y'all noted, was incorrect. This
fixed it:

collection_select(:observation,
:observation_category_id,
ObservationCategory.find(:all),
:id,
:name)

I read somewhere that if the :method parameter returns a value in
the :value parameter, that value will default to the selected item in
the list, and this turned out to be true, thus eliminating the need
for :selected.

 If I understand your points, the f.collection_select syntax is
preferred over what I have. I'll make that update, and thanks for the
advice.

-Luke

On Apr 7, 11:56 pm, Ram yourstruly.vi...@gmail.com wrote:
 ive come across this problem and as far as my searching took me,
 collection_select does not support the :selected option.
 you can handle this by initializing the selected value in the
 controller for the appropriate attribute before rendering the partial.

 The code you have shown above is slightly flawed in the syntax of
 collection_select as Fred has already pointed out. I think you want

 %= f.collection_select :observation_category_id,
 ObservationCategory.find(:all), :id, :name %

 So in your case, the problem really was the syntax. The above should
 work for your edit form ie. the correct option will be selected based
 on the existing value (built into collection_select).

 The lack of support for the :selected option in collection_select
 however, is a side issue. Anyone know if there's a fix for it? Besides
 initializing the value for it in the controller before rendering the
 partial?

 On Apr 7, 12:43 pm, Frederick Cheung frederick.che...@gmail.com
 wrote:

  On Apr 7, 5:21 am,LukeGlgill...@gmail.com wrote:

   I'm a noob. I've trolled the web and groups for help, but I just don't
   know enough Rails to apply the solutions to my particular problem. I
   even got the screencast from Pragmatic Programmers, but still no dice.

   I'm having a problem getting my collection_select to initialize with a
   previously stored value. I have items and categories, with many items
   to one category. When I edit an item, the category list populates
   correctly, but I cannot figure out how to set the default to whatever
   category was already stored for that item.

  collection_select is like the various model helpers in that you do
  collection_select 'instance_variable_name', 'method_name', ...
  ie in this instance collection_select 'observation',
  'category_id', ...

  Seeing as how you've already got a form_for setup, you should be able
  to do f.collection_select 'category_id', ...
  Calling it on the form builder means you don't need to tell rails
  which object you are working with.

  Fred

   Running Rails 2.3.2, here is the code:

   *controller:*
     def edit
       @observation = Observation.find(params[:id])
     end

   *view:*
           %= f.label Category %br /
           %=
                   collection_select(:observation_category_id,
                                                   @category_id,
                                                   
   ObservationCategory.find(:all),
                                                   :id,
                                                   :name,
                                                   {:selected = 
   @observation.observation_category_id})
           %

   *models:*
   class Observation  ActiveRecord::Base
     attr_accessible :name, :icon_url, :observation_catategory_id
     belongs_to :observation_category
   end

   class ObservationCategory  ActiveRecord::Base
     has_many :observations
   end

   *html:*
           label for=observation_CategoryCategory/labelbr /
           select id=observation_category_id_ 
   name=observation_category_id
   []option value=1exercise/option
   option value=2finance/option
   option value=3nutrition/option
   option value=4mood/option
   option value=5energy/option

   option value=6focus/option
   option value=7sleep/option
   option value=8junk_cat/option
   option value=9satiation/option/select
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[Rails] Re: Calendar control

[Eric]

On Apr 8, 7:43 am, Sushrut Sathe rails-mailing-l...@andreas-s.net
wrote:
 what is sedu gem?
 how to get that  use calendar control

For calendars, I use either of the following two, depending on the
purpose:

http://code.google.com/p/calendardateselect/
http://github.com/topfunky/calendar_helper/tree/master
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[Rails] Re: installing ruby-postgres gem

[Jorge Queiruga]

change /usr/include/libpq-fe.h (extern const char 
*pg_encoding_to_char(int encoding); to extern char 
*pg_encoding_to_char(int encoding);) # remove const

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[Rails] Find and order

[Shandy Nantz]

I have a find that look likes this:

@values = UdidValue.find(:all,
  :conditions = ['udid_id = ?', x.id], :order = 'value ASC')

The problem is that 'value' could be a street address, for example,
numbers. So, when I do the :order if they are strings the get order
wonderfully, but in one case I have values that are numbers, for
example, 234, 233, 219, 25, 199, which get order as 199, 25, 219, 233,
234. Which is not what I want. I would like to order as 25, 199, 219,
233, 234.

Is there a way to get the order to order properly regardless if it is a
number of string? Thanks,

-S
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[Rails] Error during migrations using Community Engine

[Vikas Gholap]

Hello all,

I use community engine in my web application.
when I create a new application and integrate CE it works perfect.
But when i integrate CE in my application it is not working.

please give suggestions.

My problem is that 

my application has database aflatune_development . I setup CE in my
application as per instruction given at http://communityengine.org/
documentation.html.
It create migration file in my db/migrate/
20090408130952_community_engine_to_version_61.rb

Before this my database contains two tables roles and users which
are also present in CE
so i renamed my these two tables first and then tried.

when I execute migration using rake db:migrate,
It executes some migration and then throws error that

rake aborted!
An error has occurred, all later migrations canceled:

following is some executed migration and error

==  CreateFavoritables: migrating
=
-- create_table(:favorites)
  - 0.0620s
-- add_column(:clippings, :favorited_count, :integer, {:default=0})
  - 0.1250s
-- add_column(:posts, :favorited_count, :integer, {:default=0})
  - 0.1090s
-- add_index(:favorites, [:user_id], {:name=fk_favorites_user})
  - 0.1090s
==  CreateFavoritables: migrated (0.7810s)


==  AddPublishedAsToPosts: migrating
==
-- add_column(:posts, :published_as, :string,
{:default=draft, :limit=16})
  - 0.1090s
==  AddPublishedAsToPosts: migrated (0.3440s)
=

==  AddPublishedAtToPosts: migrating
==
-- add_column(:posts, :published_at, :datetime)
  - 0.1410s
==  AddPublishedAtToPosts: migrated (0.2350s)
=

==  CreateRoles: migrating

-- create_table(:roles)
  - 0.0630s
rake aborted!
An error has occurred, all later migrations canceled:

An error has occurred, all later migrations canceled:

undefined method `enumeration_model_updates_permitted=' for Role(id:
integer, na
me: string):Class


Where i'm doing wrong?

Thanks,
Vikas
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[Rails] Re: How to pass data to Javascript variable from Ruby on Rai

[Robert Walker]

SpringFlowers AutumnMoon wrote:
 I wonder on RoR, will there be a need sometimes to pass some data from
 Ruby to Javascript?
 
 1)   var title = __ ;

script type=text/javascript charset=utf-8
  var title = '%= h @my_var -%'
/script

 
 What is the proper way to do it (fill in the code for  __ )
 if title can have newline character, or single / double quote or any
 weird character.  and what's more, what if the title from database can
 have script tags, so the code need to do cross-site scripting (xss)
 prevention, say, if the title needs to be set into a div's innerHTML
 later.
 
 2) further more, what if we do
 
 a href=# onclick=changeIt(__); return false;Click
 me/a
 
 This case is more complicated, since I think there is a rule that says,
 anything inside the attribute's value will first be parsed by the
 browser as HTML first, so this is a little trickier than case (1).

a href=# onclick=changeIt('%= h @my_var -%'); return false;Click 
me/a

However, I think you're right about the format of the string object. 
HTML escape won't provide what you want so you probably need to write 
your own sanitizing helper and use that in place of html_escape (h) 
helper. A quick-and-dirty one I came up with was 
my_var.gsub(/[\n\'\]/, ). I'm sure that's probably not 
comprehensive, but does seem to take care of the issues mentioned here.
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[Rails] Re: Adding files in git

[Robert Walker]

Pål Bergström wrote:
 Bosko Ivanisevic wrote:
 You have to add files to git with:
 
 git add .
 
 This will add all new files. Command
 
 git commit -a -m ''
 
 with add only already tracked and changed files and commit them with
 given message.
 
 On Apr 8, 9:02�am, P�l Bergstr�m rails-mailing-l...@andreas-s.net
 
 Thanks :-)

Also note that git add --all does what git add . does, but this form 
might only attempt to add modified and untracked files, rather than 
attempting to add every file in the project. I don't know if it actually 
matters though in practice.
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[Rails] Re: Ajax Rails

[esdevs]

Brilliant on all accounts - thanks guys!!

sean

On Apr 8, 11:04 am, Frederick Cheung frederick.che...@gmail.com
wrote:
 On 8 Apr 2009, at 15:31, Phlip wrote:



  div id=%= post.title % style=display: none;

  Just make sure that %= post.title % is unique for the page.

  An id must conform to roughly the same rules as a JavaScript  
  identifier. No
  leading numbers, no spaces, no funny business. Of course no browser  
  bothers to
  enforce that, but such rules exist to help us Rails programmers  
  write rigorous
  code that goes far beyond browser forgiveness.

  div id=post_%= post.id % style=display: none;

 Or use the div_for helper

 Fred




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[Rails] Re: Best practice for passing vars etc...

[elliottg]

Thanks Fredrick.

The tip on nested routes was just what I needed.

On Apr 7, 4:32 pm, Frederick Cheung frederick.che...@gmail.com
wrote:
 On Apr 7, 8:24 pm,elliottgx...@simplecircle.net wrote: In order for the 
 products_controller actions to operate they all need
  access to params[:category]. Currently I am passing that attribute
  around thru a combination of hidden for_for fields and stuff like
  this:
  link_to 'Edit', edit_product_path(product, :category =params
  [:category])

  I am running into a lot of issues keeping track of passing this info
  around through the various views and actions that are in play. It
  feels sloppy and prone to problems. It's like I'm working in PHP
  again.

 You might want to read up on nested resources

  Should I use global varibles or sessions to solve these kinds of
  problems?

 I really wouldn't - that's definitely grungy (both server side and
 from the point of view of the user)

 Fred
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[Rails] Re: Find and order

[Philip Hallstrom]

 I have a find that look likes this:

 @values = UdidValue.find(:all,
  :conditions = ['udid_id = ?', x.id], :order = 'value ASC')

 The problem is that 'value' could be a street address, for example,
 numbers. So, when I do the :order if they are strings the get order
 wonderfully, but in one case I have values that are numbers, for
 example, 234, 233, 219, 25, 199, which get order as 199, 25, 219, 233,
 234. Which is not what I want. I would like to order as 25, 199, 219,
 233, 234.

 Is there a way to get the order to order properly regardless if it  
 is a
 number of string? Thanks,

Google for natural sort for your particular database.

If mysql, maybe... 
http://blog.feedmarker.com/2006/02/01/how-to-do-natural-alpha-numeric-sort-in-mysql/

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[Rails] Re: Application Release Tracking Version Numbers

[Kevin Elliott]

With a day to let this sit, I thought more about it (and did more  
searches), and did not find anything compartmentalized to handle this.  
I'll probably move forward with making this into a gem. Is anyone  
interested? Are there particular features you'd like to see this handle?

-Kevin

On Apr 7, 2009, at 12:50 PM, Kevin Elliott wrote:


 Forgive me if this has been solved in its entirety, although I've only
 seen bits and pieces of this solved in various ways. I'm hoping a few
 of you have figured out an elegant solution to this problem.

 Over time I've noticed that it would be immensely helpful if we were
 able to easily correlate which git commit version was running in all
 of our environments of our application. Capistrano is kind and stores
 this deployment version value in REVISION, and the deployment time in
 the timestamp of the deployment directory.

 Seth Ladd wrote about a couple of helper methods he wrote to acquire
 these values at 
 http://blog.semergence.com/2008/11/03/displaying-deployment-date-and-time-and-git-revision-number-in-rails-views

 I'd like to take this up a notch and mark known good commits with
 releases (i.e. 1.0, 1.1, 1.2, 1.2.1, etc). At the footer of all pages,
 it would be excellent to be able to see something like PROD - 1.0
 (3425) (ENVIRONMENT - VERSION (BUILD)) where BUILD corresponds to a
 git commit hash (somehow). I'd like to be able to catalog which commit
 hash maps to which version (and do this semi-automatically, through a
 rake/cap task, aka: cap deploy:version:increment only when a major/
 minor release occurs).

 Then, I'd also like to extract all dependency version numbers, and
 combine all of this into exception reporting. So when an exception is
 thrown (gracefully to the end user with an error page), email is
 generated with:

   environment (production, staging, development, etc)
   particular app server hostname/ip/port
   app version (1.0, 1.0.1, 1.2, 1.3, etc)
   build version (3425)
   git commit hash
   dependent gems and plugins
   versions of each gem and plugin REQUIRED for the release
   versions of each gem and plugin installed

 Is anyone aware of a single tool that has combined all of this
 together? There are certainly some solutions, such as
 exception_notifier, hoptoad, etc, which do the exception
 notifications, but do not handle release management or release
 correlation.

 If not, I think this might be worthy of a plugin or gem that I'd
 consider building.

 -Kevin

 


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[Rails] Re: Adding files in git

[Pål Bergström]

Robert Walker wrote:
 Pål Bergström wrote:

 
 Also note that git add --all does what git add . does, but this form 
 might only attempt to add modified and untracked files, rather than 
 attempting to add every file in the project. I don't know if it actually 
 matters though in practice.

I see. Good to know.
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[Rails] Re: How to change the response charset

[xabriel]

Well, I fixed this issue following Charset conversion rules from this
blog post: 
http://blog.grayproductions.net/articles/encoding_conversion_with_iconv

James (the blog author) actually has the most comprehensive treatment
on Ruby Strings (both for 1.8  1.9).

Hope this helps somebody someday! :)



On Apr 8, 12:45 am, xabriel xabri...@gmail.com wrote:
 Hi all,

 I have the following on a controller method:

   render :text = A string message

 I want that response body to be converted to US-ASCII. (BTW, Ruby
 seems to default to UTF-8)

 Any ideas? I know theres a 'response.charset', but that seems to only
 change the response's charset header. I need the actual body string to
 be changed to US-ASCII.
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[Rails] Re: How to change the response charset

[xabriel]

Well, I fixed this issue following Charset conversion rules from this
blog post: 
http://blog.grayproductions.net/articles/encoding_conversion_with_iconv

James (the blog author) actually has the most comprehensive treatment
on Ruby Strings (both for 1.8  1.9).

Hope this helps somebody someday! :)



On Apr 8, 12:45 am, xabriel xabri...@gmail.com wrote:
 Hi all,

 I have the following on a controller method:

   render :text = A string message

 I want that response body to be converted to US-ASCII. (BTW, Ruby
 seems to default to UTF-8)

 Any ideas? I know theres a 'response.charset', but that seems to only
 change the response's charset header. I need the actual body string to
 be changed to US-ASCII.
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[Rails] Re: How to pass data to Javascript variable from Ruby on Rai

[Frederick Cheung]

On Apr 8, 6:00 pm, Robert Walker rails-mailing-l...@andreas-s.net
wrote:
 SpringFlowers AutumnMoon wrote:
 me/a

 However, I think you're right about the format of the string object.
 HTML escape won't provide what you want so you probably need to write
 your own sanitizing helper and use that in place of html_escape (h)
 helper. A quick-and-dirty one I came up with was
 my_var.gsub(/[\n\'\]/, ). I'm sure that's probably not
 comprehensive, but does seem to take care of the issues mentioned here.

I normally use to_json

Fred

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[Rails] Re: Ajax Rails

[Phlip]

Frederick Cheung wrote:

 div id=post_%= post.id % style=display: none;

 Or use the div_for helper

(Didn't know that! But..) sometimes it ain't a div. you can twiddle the innards 
of a span or table or li. Not to say you _should_...


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[Rails] Clearing string attribute

[Deepak]

I am missing something very basic. I have a string attribute which I
need to clear before saving the record.

model.attribute = nil is not working. It works fine for another
attribute which is a number

The string attribute is nullable and was created via migration

Thanks,
Deepak

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[Rails] ADVANCED Rails Mailing List?

[Kevin Elliott]

Is there an advanced rails mailing list? I've noticed that much of the  
issues on this list are for beginner to intermediate issues, and  
posters asking more advanced issues are rarely answered. I still find  
this list to be very useful, but I would love to find a community of  
more advanced RoR folks to discuss expert level implementations.

-Kevin

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[Rails] Method to remove html escape characters from strings

[Karl]

Is there a convenient way of removing html escape characters from
Strings? I could do using reg exp as in:

= hello amp; goodbye
 hello amp; goodbye.gsub(/amp;/, )
= hello  goodbye

but I figured there might be a better way.

thx.
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