AJS.$.ajax call producing ParseErrorException Edited

[MuhammadU]

I am using following code in velocity template for Project Tab Panel plugin module.

<script>
AJS.$(document).ready(function() 
{
	alert(getCurrentUserName());
   
});


function getCurrentUserName()
{
	var user;
     AJS.$.ajax({
        url: "/rest/gadget/1.0/currentUser",
        type: 'get',
        dataType: 'json',
        async: false,
        success: function(data) {
            user = data.username;
        } 
     });
     return user;
}

</script>

When I visit my tab panel I get this error message.....

An error occurred whilst rendering this message. Please contact the administrators, and inform them of this bug. Details: ------- org.apache.velocity.exception.ParseErrorException: Encountered "{" at com.elixir.jira.CustomerIssuesProjectTabPanel:cs-customers-only/templates/tabpanels/cs-customers-only.vm[line 17, column 17] Was expecting one of: <EOF> "(" ... <RPAREN> ... <ESCAPE_DIRECTIVE> ... <SET_DIRECTIVE> ... "##" ... "\\\\" ... "\\" ... <TEXT> ... "*#" ... "*#" ... <STRING_LITERAL> ... <IF_DIRECTIVE> ... <STOP_DIRECTIVE> ... <INTEGER_LITERAL> ... <FLOATING_POINT_LITERAL> ... <WORD> ... <BRACKETED_WORD> ... <IDENTIFIER> ... <DOT> ... "{" ... "}" ... at org.apache.velocity.Template.process(Template.java:141) at

Please note that all AJS functions are working .. it produces error on ajax calls only .. what is the solution .. I have been stuck in it like forever...

[Florin Manaila · Accepted solution]

The problem is that the velocity engine is interpreting the "$." from "AJS.$.ajax" as a valid directive. You should include all the javascript in a web-resource and then include it in the velocity file (or require it from your panel class) so it won't be parsed.

See this for more info: https://developer.atlassian.com/display/JIRADEV/Web+Resource+Plugin+Module#WebResourcePluginModule-ReferringtoWebResources

[Paul Pasler]

So just try it with jQuery.ajax instead of AJS.$.ajax?!

Am I wrong or should work, when velocity is ignoring the block?

#[[<script>...</script>]]#

[Florin Manaila]

I've had some trouble using jQuery directly and that's why I usually try to avoid that syntax, but yes, that should work as well.

I've never used #[[ ]]#, but if it does what you say, it should work. Maybe the velocity engine in JIRA is outdated (?).

[Paul Pasler]

I dont think any engines in JIRA are outdated...

[Florin Manaila]

Looking into the sources for JIRA 6.0.5, they use a custom version of the velocity engine 1.6.4-atlassian-4, which I guess is based on velocity 1.6.4. The #[[ ]]# syntax was added in version 1.7 according to their changelogs ( http://velocity.apache.org/engine/releases/velocity-1.7/changes-report.html ) and this https://issues.apache.org/jira/browse/VELOCITY-661 , so that's probably why it doesn't work.

[Paul Pasler]

The Script works as expected, when I excecute it in firebug.

You can try to avoid velocity parse the scriptblock by writing:

#[[<script>...</script>]]#

As described here: http://stackoverflow.com/questions/6828342/velocity-how-to-avoid-parseerrorexception-when-using-jquery

[MuhammadU]

Nope .. not working ..

[Paul Pasler]

But you can excecute it in firebug?

[RambanamP]

try with this script

<script type="text/javascript">
jQuery(document).ready(	function($) {
//you can get current user like this
alert("User :: "+AJS.params.loggedInUser );	
alert(" RemoteUser :: "+AJS.params.remoteUser);	

//or like this
 alert(getCurrentUserName());
function getCurrentUserName()
{
    var user;
     AJS.$.ajax({
        url: "/rest/gadget/1.0/currentUser",
        type: 'get',
        dataType: 'json',
        async: false,
        success: function(data) {
            user = data.username;
        } 
     });
     return user;
}

});
</script>