Abort previous LoadableDataModel.loadPage calls

[kalebwalton]

When making multiple calls to loadPage (i.e. a user clicks twic) the previous call should be aborted before the next one is made to avoid a race condition where the second call returns before the first and when the first call returns it overwrites the second call's data.

[kalebwalton]

Looks like it was one of those things that just didn't make it in as it only takes a few small changes to get it to work (copied the methods from another yui-ext object that already had them). I didn't capture it below but I also had to add "this.abort();" to the second line of the load method so it would abort the previous on every load.

YAHOO.ext.grid.LoadableDataModel.prototype.isLoading = function(){
  return this.transId ? true : false;
};

YAHOO.ext.grid.LoadableDataModel.prototype.abort = function(){
  if(this.isLoading()){
    YAHOO.util.Connect.abort(this.transId);
  }
};

[jack.slocum]

Thanks, I added it.