JQuery Datatables Errors

gistfile1.txt

Seen on: Datatables 1.8.x

1.  c[b[0]] is undefined

Check aoColumns prop.  E.g. if obj.name below not defined will cause error.  If are using

  "aoColumns": [
    { "sWidth": '200px', "mDataProp": "obj.name" },

If are setting col val in "fnRowCallback" prop, set mDataProp to null to avoid this problem.


2. Uncaught TypeError: Cannot read property 'length' of undefined

Happens for server-side processing when no aaData prop in the server response.

Correct should be something like:

  def datatable_data
    @objs = #some finder method
    data = DataTableWrapper.new #this is just some obj encapsulating resp
    data.sEcho = params[:sEcho].to_i
    data.iTotalRecords = #tot recs in this set
    data.iTotalDisplayRecords = #recs to display
    data.aaData = @objs
    render :json=>data.to_json
  end

Ref: http://datatables.net/forums/discussion/6101/cannot-read-property-length-of-undefined-with-ajax-source/p1