rails caching + ajax

I have a rails app that shows users posts. Users开发者_开发百科 posts can be sorted in many ways, paginated, categorized, etc. I am doing all of these clicks over ajax.

However, everytime I click a category or a sortby param or a new page, it loads the ENTIRE request again and then returns it in the way specified. Is there any way to cache my first results and THEN sort, paginate, categorize quickly?

In order to enhance the performance, a better way is to use memcache. If you have memcache installed and implemented in your rails app, you can cache that query for a certain period of time without actually querying the database again instead it will fetch directly from memory again, thus it improved performance greatly. You may want to check out https://github.com/nkallen/cache-money.

This is a question of using AJAX vs a non-AJAX javascript implementation.

When using Ajax, the question you should ask yourself is, does this action require more information or logic from the server? If the answer is no and you can do it using only the information you have already loaded on the client browser, you should try and implement it using Javascript.

In this case, there are plenty of solutions for javascript sorting out there. For example, if you want a simple table-like sorting (your table could be invisible) you could use something like this plugin: http://yoast.com/articles/sortable-table/

If you're looking for a more custom solution, you could write the javascript by hand, this post: Sort <div> elements using jQuery gives a good starting point.

Hope that helps!