topic Re: Basic dashlet setup error (superclass undefined) in Alfresco Archive

Basic dashlet setup error (superclass undefined)

cybertoast — Thu, 19 Nov 2009 15:32:20 GMT

I've got a situation I don't understand with dashlets. I've created dashlets that work, and now I have new dashlets that don't and can't figure out why some don't work.I'm creating a custom My Sites dashlet, and putting it into web-extension/site-webscripts/com/myco/components/dashlets/myco-sites.ge

Re: Basic dashlet setup error (superclass undefined)

mikeh — Thu, 19 Nov 2009 15:48:51 GMT

Two things stand out:

1 - You don't need the YUI includes, as the Share code has already included them for you.
2 - Is that the whole client-side code? If so, you're not closing the (function(){… part at the end.

Thanks,
Mike

Re: Basic dashlet setup error (superclass undefined)

cybertoast — Thu, 19 Nov 2009 16:08:01 GMT

1 - You don't need the YUI includes, as the Share code has already included them for you.

Ok, that's good to know, but I figured what the heck - can't hurt to have these included multiple times. But I made the change anyway and still have the same problem.

2 - Is that the whole client-side code? If so, you're not closing the (function(){… part at the end.

Sorry, that was a cut and paste error on my part - just missed the last line. The full function is:


(function()
{
   /**
    * YUI Library aliases
    */
   var Dom = YAHOO.util.Dom,
      Event = YAHOO.util.Event;

   /**
    * Alfresco Share aliases
    */
   var $html = Alfresco.util.encodeHTML;

   /**
    * Alfresco.SampleComponent constructor.
    * @return {Alfresco.SampleComponent} the new component instance
    * @constructor
    */
   MycoSites = function MycoSites_constructor(htmlId)
   {
      MycoSites.superclass.constructor.call(this, "MycoSites", htmlId, ["button", "container"]);
      this.preferencesService = new Alfresco.service.Preferences();
      return this;
   };
   YAHOO.extend(MycoSites, Alfresco.component.base,
   {}
   );
})();
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Re: Basic dashlet setup error (superclass undefined)

cybertoast — Thu, 19 Nov 2009 16:15:14 GMT

One other thing, which may be useful. Firebug console tells me that I have 2 errors:
The first from yuiloader-debug.js line 581:


extend failed, please check that all dependencies are included.
‍‍‍

I was assuming this is from the YAHOO.extend() call, and that it was actually thanks to the superclass failure, but maybe I'm misunderstanding.

The second I put in the earlier message, from myco-sites.js:


MycoSites.superclass is undefined
‍‍‍

Re: Basic dashlet setup error (superclass undefined)

mikeh — Thu, 19 Nov 2009 18:15:04 GMT

Ah ok, try

var MycoSites = function MycoSites_constructor(htmlId)
   …‍‍

Ideally you want to create a new top-level JavaScript namespace (like the Alfresco one). You can do this with code like:

// Ensure Myco root object exists
if (typeof Myco == "undefined" || !Myco)
{
   var Myco = {};
}

(function()
{
   …
   Myco.Sites = function… etc.
‍‍‍‍‍‍‍‍‍‍‍

Mike

Re: Basic dashlet setup error (superclass undefined)

cybertoast — Thu, 19 Nov 2009 18:36:37 GMT

Didn't help. I still get exactly the same error. The error happens at the superclass.constructor.call(), so the object (MycoSites) is definitely defined, but it does not seem to inherit from whatever the parent object is (i.e., no superclass). Is there some explicit inheritance that I need to specify somewhere?

Re: Basic dashlet setup error (superclass undefined)

cybertoast — Thu, 19 Nov 2009 18:55:53 GMT

And also, the same error occurs even if I name the object Alfresco.dashlet.MycoSites, in keeping with Alfresco.dashlet.MySites. So it seems there's something else amiss.

Re: Basic dashlet setup error (superclass undefined)

mikeh — Thu, 19 Nov 2009 20:16:38 GMT

Ok, got it (I hope!)

It's Alfresco.component.Base, not Alfresco.component.base.

Try that…

Thanks,
Mike

Re: Basic dashlet setup error (superclass undefined)

cybertoast — Thu, 19 Nov 2009 20:24:42 GMT

Doh! It's really irritating when it's little things like this that you just can't see after staring at the code for several hours. Thanks a lot Mike!

Re: Basic dashlet setup error (superclass undefined)

mikeh — Thu, 19 Nov 2009 20:26:08 GMT

Phew!