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From "Simone Gianni (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COCOON-1804) Javascript FOM_SCOPE issue when using Java as the flow engine - ReferenceError: "cocoon" is not defined
Date Wed, 22 Mar 2006 13:13:18 GMT
    [ http://issues.apache.org/jira/browse/COCOON-1804?page=comments#action_12371418 ] 

Simone Gianni commented on COCOON-1804:
---------------------------------------

Implemented a custom java validator. See COCOON-1806. It should be possible to apply this
patch also to older versions of cocoon since it's mainly file additions.

Anyway, the problem of accessing the request, session or other objectmodel objects from inside
these classes is unresolved.

IMMO, this is a cocoon flow : the fact that a user decides to use another flow interpreter
should not modify the behaviour of a definition javascript snippet.

There are two possible solutions :
- Either we decide that a definition snippet shouldn't access the cocoon object, since that's
commonly used for "control", and definition is not the right place for control. So the javascript
scope in which the definition snippets are executed should not be the same of the flowscript
interpreter but a new one, without the FOM objects inside.
- Or the behaviour must be the same, so the o.a.c.forms.utils.JavaScriptHelper, if does not
find an already prepared "FOM-enabled" javascript context creates a new one, so that also
with javaflow you have the same objects inside a javascript snippet. It should not be that
difficult, I think it's just a matter of exporting relevant methods of the flowscript interpreter
(expecially createSessionScope) in another utility class, and partially export the setupContext
method in this same utility class.


> Javascript FOM_SCOPE issue when using Java as the flow engine - ReferenceError: "cocoon"
is not defined
> -------------------------------------------------------------------------------------------------------
>
>          Key: COCOON-1804
>          URL: http://issues.apache.org/jira/browse/COCOON-1804
>      Project: Cocoon
>         Type: Bug
>   Components: Blocks: Java Flow
>     Versions: 2.1.8
>     Reporter: Andrew Madu
>     Priority: Blocker

>
> I have created a  java flow class which does the following:
> //Load in validation file
> FormInstance form = new FormInstance("forms/login.xml");
> My login map (snippet) is as follows:
> Login.xml:
>     <fd:validation>
>         <fd:javascript>
>             var success = true;
>             var newUserReg = new Packages.test.User();
>             var username = widget.lookupWidget("username");
>             var password = widget.lookupWidget("password");
>            
>             try {
>                 
>                 var checkUserTest = newUserReg.getUser(username.value, password.value);
>                 
>                 if (checkUserTest != null) {
>                     cocoon.session.setAttribute("user", checkUserTest);
>                     success = true;
>                 }else{
>                     username.setValidationError(new Packages.org.apache.cocoon.forms.validation.ValidationError(e,
false));
>                     password.setValidationError(new Packages.org.apache.cocoon.forms.validation.ValidationError("The
password, username combination does not exist. Please enter another one.", false));
>                     success = false;
>                 }
>             } catch (e) {
>                     username.setValidationError(new Packages.org.apache.cocoon.forms.validation.ValidationError(e,
false));
>                     password.setValidationError(new Packages.org.apache.cocoon.forms.validation.ValidationError("e.",
false));
>                     success = false;
>             }
>             return success;
>         </fd:javascript>
>     </fd:validation>
> I am getting an error message when the line 'cocoon.session.setAttribute("user", checkUserTest)'
is hit.:
> ReferenceError: "cocoon" is not defined
> What is the issue here, can I create a session object from within form validation/javascript
in another way?
> Andrew

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