Alternate way to get current User Oid in layout template groovy script?

30 May '13, 06:05 AM
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Forum Forum Starter - Level 2

Hi, Just wondering if there is a way to get the current user from the session context using groovy (within the layout.template of a custom unit)?

I know that you can specify a sub-unit UserCtxParam, or have the input.template provide the property explicitly but just wondering if it's available otherwise.

If the Java Service class's execute method you can get it like:

UserId = BeanHelper.asString(sessionContext.get(RTXConstants.CURRENT_USER_CTX_PARAM_KEY));

Outside the groovy script in the layout template you can get it like:

${UserCtxParam}

So it's there without having to declare it as an input property and having to explicitly pass it, but not sure how to access it in a groovy script (if it can be done).

 
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Hi,

the Context Parameters store the information in the session context. For example, the "UserCtxParam" Context Parameter identifies the currently logged user.

Within a template, you can use a Context Parameter by writing JSTL code. Examples:

${UserCtxParam}    // prints the value in the page

<c:if test="${UserCtxParam==1}">    // checks the value of the UserCtxParam
 .....
</c:if>

The JSTL code is executed at runtime, while the Groovy code is executed during the generation phase. The information about the currently logged user is known only at runtime, so inside the template you have to use JSTL code to manage the UserCtxParam.

   
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Forum Starter - Level 2

Thank you for your answer, and agrees with my observation. I think below is the rules of how I understand them now:

  • The Custom Unit sub-properties are available at generation time and run time (via the Service class constructor's "Element descr" parameter).
  • The input.template parameters are ONLY available at run time (via the Service class .execute() method's "Map sessionContext" parameter).

Therefore:

  • There is no way to get the UserCtxParam within a groovy script at generation time (because generation time occurs in WebRatio, not in the browser like Javascript or a JIT compiler).
  • The knowledge base page on "Context Parameters" explains why the UserCtxParam (and other Web Model level defined properties) don't need explicit links to make them accessible within Custom Units.

 
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