Re: T5: Best practice for rendering a dynamic component
Hi,
I need to translate a WebObjects WOSwitchComponent to something equivalent
in T5.
I've looked at the BeanEditForm source, but I'm afraid I don't understand
how this is working. The relevant bit seems to be:
t:beaneditor t:id=editor object=object model=model overrides=this/
... but maybe the key is actually somewhere in PropertyEditor?
When you say put the components on another page, do you mean that I would
need to list every type of component explicitly? Also, I'm not clear on
what you mean by, choose the component from that page.
Ideally, I'd like to have something really simple, like this:
t:DynamicComponent name=prop:componentName
param1=prop:someInformalParam ... /
I appreciate that templates are supposed to be statically typed, but what
can I do if I don't have the name of the component until runtime?
Thanks,
Marc
Howard Lewis Ship wrote:
This is very easy in Tapestry; just put the components on another page,
inject the page, and choose the component from that page.
This same approach is what drives BeanEditForm and Grid: the ability to
choose components or blocks to render at any particular time.
On 5/23/07, Daniel Tabuenca [EMAIL PROTECTED] wrote:
What I'm trying to do is related to this. It would be very useful to
be able to get components from some pool (just like pages). Then I
could dynamiclally render any component dynamically on any page using
the Delegator. This is useful in dynamic pages where the page
structure itself is highly dynamic. Each delegator can then
dynamically ask for the component it should render. I know you could
do this by by listing all the possible @Components in each page class,
but this gets very ugly if you have lots of possible components to
choose from but you only use one. Is there anyway to do this or
simulate this?
On 5/23/07, Howard Lewis Ship [EMAIL PROTECTED] wrote:
Absolutely. You can put it inside a t:block to keep it from
rendering
normally.
On 5/23/07, Joel Wiegman [EMAIL PROTECTED] wrote:
Hrm...
I have the code setup as listed below, but I'm getting:
org.apache.tapestry.ioc.internal.util.TapestryException: Component
org.foo.pages.Start does not contain an embedded component with id
'apple'.
Does it expect me to have a t:apple/ tag in the page even though
I'm
delegating the rendering of it?
-Original Message-
From: Howard Lewis Ship [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 23, 2007 1:41 PM
To: Tapestry users
Subject: Re: T5: Best practice for rendering a dynamic component
The Delegate component is what you need:
t:delegate to=fruit/
@Component
private Apple apple;
@Component
private Banana banana;
public Object getFruit() {
if ( ... ) return apple;
return banana;
}
With Tapestry, the construction of pages is static, fixed,
unchanging,
much like the construction of your classes. However, Tapestry is
quite
dynamic when it comes to rendering, you can choose which objects
render
at what time in the rendering process, which ends up being about the
same thing.
On 5/23/07, Joel Wiegman [EMAIL PROTECTED] wrote:
Hello all,
I'm interested in rendering a component template that I can
selectively declare. For example, I'd like to do something like
the
following:
MyPage.java
public class MyPage {
@Component
private Fruit myFruit;
Object onAction(String switchValue) {
if(switchValue.equals(apple) {
myFruit = new Apple();
} else {
myFruit = new Banana();
}
}
}
MyPage.html
t:fruit/
Make me an Apple!
I'll save you from having to read the Apple.html and
Banana.html
component templates. :-)
Anyway, I'm pretty sure it's not this easy, and I was wondering
what's
the best practice for accomplishing what I'm after.
Thanks!
Joel
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Professional Tapestry training, mentoring, support and project work.
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Creator, Apache HiveMind
Professional Tapestry training, mentoring, support
PageRenderSupport deprecated?
Hi again,
I recently upgraded an app from 5.0.11 to 5.0.17, and now it can no longer
find PageRenderSupport, which I was using to inject some javascript, like
this:
@Inject
@Path(scripts/injected.js)
private Asset injectedJsAsset;
@Inject
private PageRenderSupport pageRenderSupport;
void setupRender() {
pageRenderSupport.addScriptLink(injectedJsAsset);
}
This no longer compiles in 5.0.17, due to the fact that PageRenderSupport
seems to have disappeared.
What is the proper way to do this now?
Thanks in advance,
Marc
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Ajax polling using zone
Hi!
Still finding little problems upgrading from 5.0.11 to 5.0.17. Here is my
latest issue:
I was using prototype's Ajax.PeriodicalUpdater to do polling by refreshing a
zone. My code goes like this:
component tml:
t:actionlink t:id=pollLink zone=pollResultsPoll/t:actionlink
t:zone t:id=pollResults/
t:block id=pollResultsBlock ${gameId} /t:block
component java:
@Inject
private Block pollResultsBlock;
@OnEvent(component = pollLink)
Block poll() {
return pollResultsBlock;
}
public int getGameId() {
return this.gameId;
}
I inject this javascript:
var url = $(pollLink).href;
var updater = new Ajax.PeriodicalUpdater('pollResults', url, {
asynchronous:true,
frequency:2,
evalJS:true,
onLoaded: function(transport) {
$(pollResults).style.display = none;
var result = $(pollResults).innerHTML;
eval(gameId = + result + ['content']);
// do some stuff with gameId
}
});
All this used to word in 5.0.11, but in 5.0.17, although the ActionLink
works if I click it manually, the PeriodicUpdate now fails. Instead of
putting gameId in the block, I get the entire contents of the page. In
fact, the poll() method is never even invoked unless I click the link
manually.
Moreover, I'd like to know if there is some right way to do polling via
Ajax. Notwithstanding the fact that it no longer works, my method seems
like a horrible hack...
Thanks again,
Marc
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Re: creating components with Tapestry 5
Thanks, Howard, that seems to have been the issue. I moved Layout.tml to
/src/main/resources/org/apache/tapestry5/tutorial/components, and now
everything works beautifully. Is this the right place?
An annotation would be nice, but also might I suggest a less cryptic error
message for components which do not have this annotation, something like
Layout.tml not found in paths searched.
Thanks again,
Marc
Howard Lewis Ship wrote:
Tapestry couldn't find your component's template and was forced to
assume it didn't exist. I'm beginning to wonder if we need an
annotation for components that don't have a template, since this can
be a bastard for newbies to track down.
Component templates are stored on the classpath, with the associated
.class file; i..e, src/main/resources. In addition, you must match
the name of the Java class to the name of the template filed
(MyComponent.java -- MyComponent.tml).
On Thu, Nov 27, 2008 at 9:49 AM, mad [EMAIL PROTECTED] wrote:
Hi again,
I hate to ask the same question twice. I did actually have this working
with a previous version of T5, but in 5.0.15, the body tag is failing,
like this:
Render queue error in Text[ toto ]: This markup writer does not have a
current element. The current element is established with the first call
to
element() and is maintained across subsequent calls.
Here is what I have:
Layout.tml:
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
html xmlns:t=http://tapestry.apache.org/schema/tapestry_5_0_0.xsd;
...
t:body/
...
/html
Layout.java:
package org.apache.tapestry5.tutorial.components;
import net.rbcdexia_is.ds.application.Formatters;
public class Layout {
}
Page.tml:
t:Layout xmlns:t=http://tapestry.apache.org/schema/tapestry_5_0_0.xsd;
toto
/t:Layout
Page.java:
package org.apache.tapestry5.tutorial.pages;
public class Page {
}
As you can see, there really isn't much to it. What am I doing wrong? I
believe I am following the example given in
http://tapestry.apache.org/tapestry5/tapestry-core/guide/templates.html
in
the Tapestry Elements section, for the body tag, pretty much to the
letter.
As usual, thanks for all your help,
Marc
mad wrote:
Hi everyone,
First off, I am new to Tapestry, although I've been doing WebObjects for
about 8 years, so the I'm hoping the transition won't be too painful.
I've chosen to work with Tapestry 5 since it seems like quite a
signifiicant evolution from the previous version, but I'm having some
difficulty finding resoureces. I've done the excellent Tapestry 5
tutorial, but I need much more input! Can anybody point me to some
useful
places. I am especially interested in words of wisdom regarding use of
Tapestry and Cayenne together (which I am also learning).
My current issue is trying to understand how to create a page wrapper
component (or any sort of component, actually) in Tapestry 5 --
something
like the old WOComponentContent, which I know and love.
tia,
Marc
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Re: creating components with Tapestry 5
Hi again,
I hate to ask the same question twice. I did actually have this working
with a previous version of T5, but in 5.0.15, the body tag is failing,
like this:
Render queue error in Text[ toto ]: This markup writer does not have a
current element. The current element is established with the first call to
element() and is maintained across subsequent calls.
Here is what I have:
Layout.tml:
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
html xmlns:t=http://tapestry.apache.org/schema/tapestry_5_0_0.xsd;
...
t:body/
...
/html
Layout.java:
package org.apache.tapestry5.tutorial.components;
import net.rbcdexia_is.ds.application.Formatters;
public class Layout {
}
Page.tml:
t:Layout xmlns:t=http://tapestry.apache.org/schema/tapestry_5_0_0.xsd;
toto
/t:Layout
Page.java:
package org.apache.tapestry5.tutorial.pages;
public class Page {
}
As you can see, there really isn't much to it. What am I doing wrong? I
believe I am following the example given in
http://tapestry.apache.org/tapestry5/tapestry-core/guide/templates.html in
the Tapestry Elements section, for the body tag, pretty much to the
letter.
As usual, thanks for all your help,
Marc
mad wrote:
Hi everyone,
First off, I am new to Tapestry, although I've been doing WebObjects for
about 8 years, so the I'm hoping the transition won't be too painful.
I've chosen to work with Tapestry 5 since it seems like quite a
signifiicant evolution from the previous version, but I'm having some
difficulty finding resoureces. I've done the excellent Tapestry 5
tutorial, but I need much more input! Can anybody point me to some useful
places. I am especially interested in words of wisdom regarding use of
Tapestry and Cayenne together (which I am also learning).
My current issue is trying to understand how to create a page wrapper
component (or any sort of component, actually) in Tapestry 5 -- something
like the old WOComponentContent, which I know and love.
tia,
Marc
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Re: creating components with Tapestry 5
The Layout component contains the tag:
t:body/
as shown below. (Maybe my ellipsis was confusing... sorry about that.)
Sven Homburg wrote:
is there no body tag in your layout ?
2008/11/27 mad [EMAIL PROTECTED]
Hi again,
I hate to ask the same question twice. I did actually have this working
with a previous version of T5, but in 5.0.15, the body tag is failing,
like this:
Render queue error in Text[ toto ]: This markup writer does not have a
current element. The current element is established with the first call
to
element() and is maintained across subsequent calls.
Here is what I have:
Layout.tml:
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
html xmlns:t=http://tapestry.apache.org/schema/tapestry_5_0_0.xsd;
...
t:body/
...
/html
Layout.java:
package org.apache.tapestry5.tutorial.components;
import net.rbcdexia_is.ds.application.Formatters;
public class Layout {
}
Page.tml:
t:Layout xmlns:t=http://tapestry.apache.org/schema/tapestry_5_0_0.xsd;
toto
/t:Layout
Page.java:
package org.apache.tapestry5.tutorial.pages;
public class Page {
}
As you can see, there really isn't much to it. What am I doing wrong? I
believe I am following the example given in
http://tapestry.apache.org/tapestry5/tapestry-core/guide/templates.html
in
the Tapestry Elements section, for the body tag, pretty much to the
letter.
As usual, thanks for all your help,
Marc
mad wrote:
Hi everyone,
First off, I am new to Tapestry, although I've been doing WebObjects
for
about 8 years, so the I'm hoping the transition won't be too painful.
I've chosen to work with Tapestry 5 since it seems like quite a
signifiicant evolution from the previous version, but I'm having some
difficulty finding resoureces. I've done the excellent Tapestry 5
tutorial, but I need much more input! Can anybody point me to some
useful
places. I am especially interested in words of wisdom regarding use of
Tapestry and Cayenne together (which I am also learning).
My current issue is trying to understand how to create a page wrapper
component (or any sort of component, actually) in Tapestry 5 --
something
like the old WOComponentContent, which I know and love.
tia,
Marc
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with regards
Sven Homburg
http://www.chenillekit.org
http://tapestry5-components.googlecode.com
-
best regards
Sven
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T5: Ajax periodic update
Hi list,
I'd like to know if there is a simple way to perform a periodic Ajax update
request.
I've invented hacked a solution using the Ajax.PeriodicalUpdater from
prototype.js. It involves putting an ActionLink on the page, giving it a
client id, making it invisible to the user (with display: none), and then
making a new Ajax.PeriodicalUpdater using the a.href from the ActionLink.
The result of this call is a string containing the content generated by the
Block element, which I must then parse. If I do not manipulate the
response, the Zone will contain something like { content : blah blah blah
}.
I'm not crazy about my solution, and, moreover, it results in a mysterious
403 Forbidden reply on some platforms.
Otherwise, having great fun with T5. Keep up the excellent work!
Regards,
Marc
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Re: How to Intergrate GWT into Tapestry pages Article by Geoff Longman
Hi, I'd just like to revive this thread. Has anybody had any good/bad experiences integrating Tapestry and GWT? I am especially interested in T5, as we are considering using this mix for an enterprise application. Thanks for your input, Marc Jessek wrote: Awesome! Thanks for the link. I was worried/wondering how hard this was for tap users and now I remember Geoff's work. Maybe we should add a link to the home page referencing gwt support via this article. On 12/13/06, Emmanuel Sowah [EMAIL PROTECTED] wrote: Hi all, Geoff Longman, our Spindle man and former Tapestry commiter has written an article on how to integrate Google Web Toolkit into a generated Tapestry page. http://www.cleancode.com/blog/2006/12/13/glongman/gwt-article/ Enjoy. Emmanuel -- Jesse Kuhnert Tapestry/Dojo team member/developer Open source based consulting work centered around dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/How-to-Intergrate-GWT-into-Tapestry-pages-Article-by-Geoff-Longman-tf2816691.html#a13839868 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
T5 tutorial not working out... Javassist, Maven problems
Hi, I am trying to do the T5 tutorial, but I am having many problems. First of all, I couldn't get the maven install to work at all. The mvn archetype:create -DarchetypeGroupId=org.apache.tapestry -DarchetypeArtifactId=quickstart -DarchetypeVersion=5.0.4 -DgroupId=org.example -DartifactId=hilo -DpackageName=org.example.hilo line works (now), but on doing mvn jetty:run, I get fatal compilation errors: [INFO] Scanning for projects... [INFO] Searching repository for plugin with prefix: 'jetty'. [INFO] [INFO] Building hilo Tapestry 5 Application [INFO]task-segment: [jetty:run] [INFO] [INFO] Preparing jetty:run [INFO] [resources:resources] [INFO] Using default encoding to copy filtered resources. Downloading: http://people.apache.org/~hlship/tapestry-snapshot-repository//org/apache/tapestry/tapestry-core/5.0.4-SNAPSHOT/tapestry-core-5.0.4-SNAPSHOT.pom Downloading: http://snapshots.repository.codehaus.org/org/apache/tapestry/tapestry-core/5.0.4-SNAPSHOT/tapestry-core-5.0.4-SNAPSHOT.pom Downloading: http://maven.openqa.org//org/apache/tapestry/tapestry-core/5.0.4-SNAPSHOT/tapestry-core-5.0.4-SNAPSHOT.pom [INFO] [compiler:compile] [INFO] Compiling 2 source files to C:\Projects\tapestry_tutorial\hilo\target\classes [INFO] [ERROR] BUILD FAILURE [INFO] [INFO] Compilation failure C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[5,33] package org.apache.commons.logging does not exist C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[6,30] package org.apache.tapestry.ioc does not exist C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[7,30] package org.apache.tapestry.ioc does not exist C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[8,42] package org.apache.tapestry.ioc.annotations does not exist C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[21,12] cannot find symbol symbol : class MappedConfiguration location: class org.example.hilo.services.AppModule C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[40,49] cannot find symbol symbol : class Log location: class org.example.hilo.services.AppModule C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[72,41] cannot find symbol symbol : class OrderedConfiguration location: class org.example.hilo.services.AppModule C:\Projects\tapestry_tutorial\hilo\src\main\java\org\example\hilo\services\AppModule.java:[73,13] cannot find symbol symbol : class InjectService location: class org.example.hilo.services.AppModule So, I retreated to more familiar territory: Ant. Sadly, I can't even make this work. I have a war file, which I built from the example source that was downloaded by Maven. When I deploy this file in my Jetty server, it seems that some javassist classes are missing. Now, having installed javassist.jar, I am getting this in Jetty's console when I try to access the hilo application: 13860 [btpool0-7] ERROR org.example.hilo.pages.Start - Render queue error in BeginRender[org.example.hilo.pages.Start:pagelink]: org.apache.tapestry.PageRenderSupport java.lang.RuntimeException: org.apache.tapestry.PageRenderSupport at javassist.runtime.Desc.getClassType(Desc.java:153) at javassist.runtime.Desc.getType(Desc.java:119) at javassist.runtime.Desc.getType(Desc.java:75) at org.apache.tapestry.corelib.components.PageLink._$environment_read_support(PageLink.java) at org.apache.tapestry.corelib.components.PageLink.beginRender(PageLink.java:63) at org.apache.tapestry.corelib.components.PageLink.beginRender(PageLink.java) at org.apache.tapestry.internal.structure.ComponentPageElementImpl$10$1.run(ComponentPageElementImpl.java:345) at org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:932) at org.apache.tapestry.internal.structure.ComponentPageElementImpl.access$100(ComponentPageElementImpl.java:69) .. and so on Perhpas I have the wrong version of javassist.jar? Is something installed improperly somehow? I'm at a bit of a loss. Thanks for any help, Marc -- View this message in context: http://www.nabble.com/T5-tutorial-not-working-out...-Javassist%2C-Maven-problems-tf3953119.html#a11215935 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: T5 tutorial not working out... Javassist, Maven problems
Marcus, wow, i can't believe that just worked! i've been fighting this thing for a whole day. thanks so much. cheers, Marc Marcus-11 wrote: Hi Marc, Try 5.0.5-SNAPSHOT in POM.xml instead 5.0.4-SNAPSHOT Marcus -- View this message in context: http://www.nabble.com/T5-tutorial-not-working-out...-Javassist%2C-Maven-problems-tf3953119.html#a11220332 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
