added an integer filter to the example with detached filters

app/views/detached_filters/index.html.erb

@@ -1,22 +1,22 @@
 <%= grid(@tasks_grid, :show_filters => :always) do |g|
 
-  g.column :column_name => 'ID', :attribute_name => 'id', :no_filter => true
+  g.column :column_name => 'ID', :attribute_name => 'id', :detach_with_id => :task_id
 
   g.column :column_name => 'Title', :attribute_name => 'title', :detach_with_id => :title_filter do |task|
     link_to('Edit', edit_task_path(task.title))
   end
 
-  g.column :column_name => 'Priority', :attribute_name => 'priority_id', 
+  g.column :column_name => 'Priority', :attribute_name => 'priority_id',
            :custom_filter => Priority.to_dropdown, :detach_with_id => :priority_filter do |task|
     task.priority.name if task.priority
   end
 
-  g.column :column_name => 'Status', :attribute_name => 'status_id', :custom_filter => Status.to_dropdown, 
+  g.column :column_name => 'Status', :attribute_name => 'status_id', :custom_filter => Status.to_dropdown,
            :detach_with_id => :status_filter do |task|
     task.status.name if task.status
   end
 
-  g.column :column_name => 'Project Name', :attribute_name => 'project_id', 
+  g.column :column_name => 'Project Name', :attribute_name => 'project_id',
            :custom_filter => Project.to_dropdown, :detach_with_id => :project_filter do |task|
     link_to_if(task.project, task.project.name, project_path(task.project) )
   end
@@ -35,6 +35,10 @@
 end -%>
 
 <table class="form">
+  <tr>
+    <td>ID</td>
+    <td><%= grid_filter @tasks_grid, :task_id  %></td>
+  </tr>
   <tr>
     <td>Title</td>
     <td><%= grid_filter @tasks_grid, :title_filter  %></td>
@@ -62,7 +66,7 @@ end -%>
     <td><%= button_to_function "Reset",  reset_grid_javascript(@tasks_grid) %></td>
     <td><%= button_to_function "Submit", submit_grid_javascript(@tasks_grid) %></td>
   </tr>
-  
+
 </table>
 
 <%= grid(@tasks_grid) %>

db/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20090907214632) do
+ActiveRecord::Schema.define(:version => 20100117201812) do
 
   create_table "companies", :force => true do |t|
     t.string   "name"