[MYFACES-1692] CommandLink does not execute action if no javascript is allowed

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.2.0
• Component/s: General
• Environment: Tomcat 6.0, javax.faces.STATE_SAVING_METHOD=server, org.apache.myfaces.ALLOW_JAVASCRIPT=false
• Assignee: Unassigned
• Reporter: Thomas Fox
• Created: 30/Jul/07 17:02
• Updated: 28/Aug/15 16:35
• Resolved: 28/Aug/15 16:35

Description

Situation:
The tag <h:commandLink action="#

{someBean.someAction}

" value="submit"></h:commandLink> is used in a jsp page, which is visited by the user. The user clicks on the link.

Expected behaviour:
The method someBean.someAction() should be called, and the navigation rule which matches the outcome should determine the page to be displayed.

Wrong behaviour:
The method defined in action is not called and the same jsp page is rendered again.

I did some debugging to find the reason of this problem. It seems to me that the server does not recognize that the click on the link is a postback. In line 172 in org.apache.myfaces.renderkit.html.HtmlResponseStateManager, the HTTP Parameter ResponseStateManager.VIEW_STATE_PARAM is checked for existence. If it is there, the request is a callback, and if it is not there, the request is not treated as postback. This parameter is not encoded in the link rendered by h:commandLink, thus the request is not treated as a postback, and the page is just rendered again.

If javaScript rendering is allowed, this works fine because the HTTP parameter ResponseStateManager.VIEW_STATE_PARAM is rendered as a hidden input field, and the javascript code does a form submit.

It seems to me that the problem could be solved by adding the parameter ResponseStateManager.VIEW_STATE_PARAM to the generated link (but I did not check it).

Issue Links

• is duplicated by: MYFACES-1808 h:commandLink doesn't execute action when Javascript is disabled