Re: T5: Can I redirect to another page in setupRender()?

[dtrebbien]

Thank you very much, Nick. This was what I was looking for.


Nick Westgate wrote:
 
 Access validation should be done in onActivate():
 http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html
 
 Cheers,
 Nick.
 
 
 dtrebbien wrote:
 I have two pages: ListRepositories and ViewRepository. ListRepositories
 is
 supposed to give ViewRepository an id number by calling ViewRepository's
 init() method. ViewRepository tracks whether it has been inited via a
 boolean value. The problem is, I want to redirect back to
 ListRepositories
 if a devious user just types in the URL for ViewRepository which would
 bypass ListRepositories's call to ViewRepository's init().
 
 Currently I just return false, but this causes Tapestry to complain with
 something like root component not defined.
 
 Does anyone know how to redirect to another page in the setupRender()
 method?
 
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Re: T5: Can I redirect to another page in setupRender()?

[Nick Westgate]

No, I'm pretty sure you can't.

Read the documentation again, and look at:
ComponentPageElementImpl.RenderPhaseEventHandler.handleResult()

It seems to confirm that returning a component will render that
component and then _continue_ with the rendering phases for the
current component.

Render phase methods are completely separate from the event handlers
for page navigation events. All options are on the page I linked to:
http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html

Cheers,
Nick.


Korben Zhang wrote:

Yes, you can.
See T5 core components, such as 'If'.

use
Object setupRender() {...}

See page
http://tapestry.apache.org/tapestry5/tapestry-core/guide/rendering.html

remember boolean is an object too.



On 7/17/07, Nick Westgate [EMAIL PROTECTED] wrote:


Access validation should be done in onActivate():
http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html

Cheers,
Nick.


dtrebbien wrote:
 I have two pages: ListRepositories and ViewRepository. ListRepositories
is
 supposed to give ViewRepository an id number by calling 
ViewRepository's

 init() method. ViewRepository tracks whether it has been inited via a
 boolean value. The problem is, I want to redirect back to
ListRepositories
 if a devious user just types in the URL for ViewRepository which would
 bypass ListRepositories's call to ViewRepository's init().

 Currently I just return false, but this causes Tapestry to complain 
with

 something like root component not defined.

 Does anyone know how to redirect to another page in the setupRender()
 method?

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Re: T5: Can I redirect to another page in setupRender()?

[Donyee]

I do this in the beforeRenderTemplate(),and works fine!

boolean beforeRenderTemplate() throws IOException, ServletException {
if (!isLogined()) {

if (appState == null) {
appState = new AppState();
}

appState.setErrCode(00100);
appState.setPrePage(index);
global.getResponse().sendRedirect(

global.getHTTPServletRequest().getContextPath()
+ /errorMessage);
}

return true;
}


2007/7/18, Nick Westgate [EMAIL PROTECTED]:

No, I'm pretty sure you can't.

Read the documentation again, and look at:
ComponentPageElementImpl.RenderPhaseEventHandler.handleResult()

It seems to confirm that returning a component will render that
component and then _continue_ with the rendering phases for the
current component.

Render phase methods are completely separate from the event handlers
for page navigation events. All options are on the page I linked to:
http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html

Cheers,
Nick.


Korben Zhang wrote:
 Yes, you can.
 See T5 core components, such as 'If'.

 use
 Object setupRender() {...}

 See page
 http://tapestry.apache.org/tapestry5/tapestry-core/guide/rendering.html

 remember boolean is an object too.



 On 7/17/07, Nick Westgate [EMAIL PROTECTED] wrote:

 Access validation should be done in onActivate():
 http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html

 Cheers,
 Nick.


 dtrebbien wrote:
  I have two pages: ListRepositories and ViewRepository. ListRepositories
 is
  supposed to give ViewRepository an id number by calling
 ViewRepository's
  init() method. ViewRepository tracks whether it has been inited via a
  boolean value. The problem is, I want to redirect back to
 ListRepositories
  if a devious user just types in the URL for ViewRepository which would
  bypass ListRepositories's call to ViewRepository's init().
 
  Currently I just return false, but this causes Tapestry to complain
 with
  something like root component not defined.
 
  Does anyone know how to redirect to another page in the setupRender()
  method?

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Re: T5: Can I redirect to another page in setupRender()?

[Nick Westgate]

Previous versions of Tapestry allowed redirection exceptions to be thrown
precisely to avoid code like this. (Controversial, but better IMO.)

Anyway, access validation shouldn't require a client side redirect.
If you are working against the framework, there's probably a better way.

Cheers,
Nick.


Donyee wrote:
 I do this in the beforeRenderTemplate(),and works fine!
 
 boolean beforeRenderTemplate() throws IOException, ServletException {
 if (!isLogined()) {
 
 if (appState == null) {
 appState = new AppState();
 }
 
 appState.setErrCode(00100);
 appState.setPrePage(index);
 global.getResponse().sendRedirect(
 global.getHTTPServletRequest().getContextPath()
 + /errorMessage);
 }
 
 return true;
 }
 
 
 2007/7/18, Nick Westgate [EMAIL PROTECTED]:
 No, I'm pretty sure you can't.

 Read the documentation again, and look at:
 ComponentPageElementImpl.RenderPhaseEventHandler.handleResult()

 It seems to confirm that returning a component will render that
 component and then _continue_ with the rendering phases for the
 current component.

 Render phase methods are completely separate from the event handlers
 for page navigation events. All options are on the page I linked to:
 http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html

 Cheers,
 Nick.


 Korben Zhang wrote:
  Yes, you can.
  See T5 core components, such as 'If'.
 
  use
  Object setupRender() {...}
 
  See page
  http://tapestry.apache.org/tapestry5/tapestry-core/guide/rendering.html
 
  remember boolean is an object too.
 
 
 
  On 7/17/07, Nick Westgate [EMAIL PROTECTED] wrote:
 
  Access validation should be done in onActivate():
  http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html
 
  Cheers,
  Nick.
 
 
  dtrebbien wrote:
   I have two pages: ListRepositories and ViewRepository. 
 ListRepositories
  is
   supposed to give ViewRepository an id number by calling
  ViewRepository's
   init() method. ViewRepository tracks whether it has been inited 
 via a
   boolean value. The problem is, I want to redirect back to
  ListRepositories
   if a devious user just types in the URL for ViewRepository which 
 would
   bypass ListRepositories's call to ViewRepository's init().
  
   Currently I just return false, but this causes Tapestry to complain
  with
   something like root component not defined.
  
   Does anyone know how to redirect to another page in the 
 setupRender()
   method?
 
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T5: Can I redirect to another page in setupRender()?

[dtrebbien]

I have two pages: ListRepositories and ViewRepository. ListRepositories is
supposed to give ViewRepository an id number by calling ViewRepository's
init() method. ViewRepository tracks whether it has been inited via a
boolean value. The problem is, I want to redirect back to ListRepositories
if a devious user just types in the URL for ViewRepository which would
bypass ListRepositories's call to ViewRepository's init().

Currently I just return false, but this causes Tapestry to complain with
something like root component not defined.

Does anyone know how to redirect to another page in the setupRender()
method?
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Re: T5: Can I redirect to another page in setupRender()?

[Nick Westgate]

Access validation should be done in onActivate():
http://tapestry.apache.org/tapestry5/tapestry-core/guide/pagenav.html

Cheers,
Nick.


dtrebbien wrote:

I have two pages: ListRepositories and ViewRepository. ListRepositories is
supposed to give ViewRepository an id number by calling ViewRepository's
init() method. ViewRepository tracks whether it has been inited via a
boolean value. The problem is, I want to redirect back to ListRepositories
if a devious user just types in the URL for ViewRepository which would
bypass ListRepositories's call to ViewRepository's init().

Currently I just return false, but this causes Tapestry to complain with
something like root component not defined.

Does anyone know how to redirect to another page in the setupRender()
method?


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