Callback is called when pagination is created

[iurisilvio]

Documentation says: "A callback function that is called when a user clicks on a pagination link".

This statement is not true, it is called when pagination is created too. This is an awful behaviour to integrate pagination with AJAX calls. I know I can do it pre-loading data, but to my use case it is not necessary.

Also, this behaviour is not expected by documentation.

[gbirke]

Ok, the documentation is missing this piece of information. But I found the behavior quite useful - the callback renders the paginated items, so with this behavior you don't need to render the first page, the pagination plugin does that for you.

Can you show me your specific use case where the behavior gets in the way?

[iurisilvio]

I have a service to make fulltext search with Solr. It is a expensive call, and it returns to me the entries to one page and the maxentries value. My callback is a function like the first one, so if I just set it like my callback, I do one useless call when pagination is created.

I solved this problem with some workaround to avoid this first call, but to me this behaviour is completely unexpected.

[iurisilvio]

I'll try to write this like a test in jsFiddle with QUnit.

[gbirke]

No need, I understand your problem. It's a typical case of wanting my own source code to be s short as possible ;)
I'll remove the call in the next release, but I'll have to rework the demos. For now you could use a modified version where the the following lines are removed:

// call callback function
opts.callback(current_page, containers); 

[gabecorrea]

The default behavior also makes it easy to get into an infinite loop. I have several filter methods that each trigger a search request.

"Click a letter, set filter parameter, run search, draw result set and pagination links."
"Click a cetegory, set filter parameter, run search, draw result set and pagination links."

In my case, I was just treating page number as another filter. The click callback fires off a chain of events that eventually redraws the pagination links, which fires off a chain of events that eventually redraws the pagination links, etc.