Question

Trying to do a simple datatables implementation with my rails 3.2 app. I have this exact app working in PHP and wanted to port it to ruby. I am not a Ruby expert just learning it.

I am basically following this example but with my Code and DB

http://asciicasts.com/episodes/340-datatables

• I created my table and gave it a class and ID

• I added this file -> /app/assets/javascripts/products.js.coffee which contains

  jQuery ->
  $(‘#run-table’).dataTable

    sPaginationType: "full_numbers"
    bServerSide: true
    iDisplayLength: 4
    aaSorting:[]
  

What I see on my web page is a properly formatted table with columns, sort icons, search filter text box, pagination numbers all correct. But it does not work.

If I do “bServerSide: true” Then any time I interact with the table I get

"NetworkError: 404 Not Found  - http://localhost:3000/null?sEcho=1&iColumns=11&sColumns=&iDisplayStart=0&iDisplayLength=4&...

So if I sort or add a search filter I get that error.

If I change it to “bServerSide: false” Then I get a correct looking table that load with my initial data but does nothing. No sorting, no filter, no pagination.

The part from that sample code I did not do was -> /app/datatables/products_datatable.rb because I did not see a need for it. With PHP I dont use server side and its about 4 lines of code to get this working.

Any help would be great I can provide more code snippets if needed

Answer 1

this was a bug in my code in the view. I had tbody defined inside my loop I needed to move it above my loop. Stupid bug that I spent hours staring at and did not see it.

This works fine now

     <tbody>


<% @run.each do |c| %>

    <tr>

    <td><%= link_to c.idRun, step_url(c.idRun) -%>  </td>

    <td> <%= c.run_name %></td>