如何通过ajax将数据发送到控制器ruby

Question

In application.js :

function get_cell_id(select_id)
{
  $.ajax({
      url: "/assign_variable",

      type: "GET",
       data:{channel:"abc"},
      error: function(){     
      alert('fail')
      }
  });
}

in static_pages_controller

def assign_variable
  @Four_Season_Set_Channel= params[:channel]
  end

in routes.rb

 match '/assign_variable', to:'static_pages#assign_variable', via: 'Get'

but i got alert fail, please help me fix it.

Answer 1

You might need to be rendering something, be it HTML/plain-text. That should solve the problem. Else you would be getting a 204 error (NO CONTENT). Also, in the javascript-error-function, try alert/log the error-code. That will help too.