Znow/_tasks_body.html.erb

## _tasks_body.html.erb
<% content_for :modal_partials do %>
  <%= render :partial => "/admin/tasks/edit_task_modal", :locals => {:task => t} %>
  <%= render :partial => "/admin/tasks/delete_task_modal", :locals => {:task => t} %>
<% end %>

<%# content_for :pre_body_close do
  <script>
    alert('hej')
    $(".completed").live("change", function(el) {
      $.ajax({
        url: "/admin/tasks/completed",
        beforeSend: function() { alert("Hi"+el) },
        data: "id="+el,
        success: function() { alert('Bye') }
      });
    });
  </script>
end %>

<tr>
  <td>
    <%= check_box_tag "completed", t.id, t.completed, :class => "completed" %>
  </td>
  <td><%= t.task_type %></td>
  <td><%= link_to "#{truncate(t.subject, :length => 20)}", admin_task_path(t) %></td>
  <td><%= t.responsible(&:name) %></td>
  <td><%= link_to t.client, admin_client_path(t.client) unless t.client.nil? %></td>
  <td><%= t.deadline.strftime("%d/%m/%y %H:%M") %></td>
  <td><%= t.author(&:name) %></td>
  <td>
    <a data-toggle="modal" href="#editTask<%= t.id %>"><%= image_tag "edit.png" %></a>
    <a data-toggle="modal" href="#deleteTask<%= t.id %>"><%= image_tag "delete.png" %></a>
  </td>
</tr>

## custom.js
$(".completed").live("change", function(e) {
      var data = "id=" + this.value;
      var url = '/admin/tasks/completed' // + (this.checked ? 'completed' : 'uncompleted');
      $.ajax({
        type: 'POST',
        url: url,
        data: data,
        beforeSend: function() { console.log(this,e) },
        success: function() { alert('All done.') }
      });
    });

## routes.erb
resources "tasks" do
      collection do
        post 'completed'
      end
    end

## tasks_controller.rb
def completed
    @task = Task.find(params[:id])
    @task.toggle! :complete

    render :nothing => true
      #if @task.completed != true
        #@task.completed = true
        #@task.update_attributes :completed, true
      #else
        #@task.completed = false
        #@task.update_attributes :completed, false
      #end
      #@task.save

  end
	<% content_for :modal_partials do %>
	<%= render :partial => "/admin/tasks/edit_task_modal", :locals => {:task => t} %>
	<%= render :partial => "/admin/tasks/delete_task_modal", :locals => {:task => t} %>
	<% end %>

	<%# content_for :pre_body_close do
	<script>
	alert('hej')
	$(".completed").live("change", function(el) {
	$.ajax({
	url: "/admin/tasks/completed",
	beforeSend: function() { alert("Hi"+el) },
	data: "id="+el,
	success: function() { alert('Bye') }
	});
	});
	</script>
	end %>

	<tr>
	<td>
	<%= check_box_tag "completed", t.id, t.completed, :class => "completed" %>
	</td>
	<td><%= t.task_type %></td>
	<td><%= link_to "#{truncate(t.subject, :length => 20)}", admin_task_path(t) %></td>
	<td><%= t.responsible(&:name) %></td>
	<td><%= link_to t.client, admin_client_path(t.client) unless t.client.nil? %></td>
	<td><%= t.deadline.strftime("%d/%m/%y %H:%M") %></td>
	<td><%= t.author(&:name) %></td>
	<td>
	<a data-toggle="modal" href="#editTask<%= t.id %>"><%= image_tag "edit.png" %></a>
	<a data-toggle="modal" href="#deleteTask<%= t.id %>"><%= image_tag "delete.png" %></a>
	</td>
	</tr>
	$(".completed").live("change", function(e) {
	var data = "id=" + this.value;
	var url = '/admin/tasks/completed' // + (this.checked ? 'completed' : 'uncompleted');
	$.ajax({
	type: 'POST',
	url: url,
	data: data,
	beforeSend: function() { console.log(this,e) },
	success: function() { alert('All done.') }
	});
	});
	def completed
	@task = Task.find(params[:id])
	@task.toggle! :complete

	render :nothing => true
	#if @task.completed != true
	#@task.completed = true
	#@task.update_attributes :completed, true
	#else
	#@task.completed = false
	#@task.update_attributes :completed, false
	#end
	#@task.save

	end