Performance improvement on workflow setup screen.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@957 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/roles_controller.rb

@@ -94,7 +94,7 @@ class RolesController < ApplicationController
     end
     @roles = Role.find(:all, :order => 'builtin, position')
     @trackers = Tracker.find(:all, :order => 'position')
-    @statuses = IssueStatus.find(:all, :include => :workflows, :order => 'position')
+    @statuses = IssueStatus.find(:all, :order => 'position')
   end
   
   def report    

app/views/roles/workflow.rhtml

@@ -36,17 +36,15 @@
 	<% for old_status in @statuses %>
 		<tr>
 		<td><%= old_status.name %></td>
-		<% for new_status in @statuses %>
+		<% new_status_ids_allowed = old_status.find_new_statuses_allowed_to(@role, @tracker).collect(&:id) -%>
+		<% for new_status in @statuses -%>
 			<td align="center">
-      
-     <input type="checkbox"
+      <input type="checkbox"
       name="issue_status[<%= old_status.id %>][]"
       value="<%= new_status.id %>"
-      <%if old_status.new_statuses_allowed_to(@role, @tracker).include? new_status%>checked="checked"<%end%>
-      >			
+      <%= 'checked="checked"' if new_status_ids_allowed.include? new_status.id %>>			
 			</td>
-		<% end %>		
-		
+		<% end -%>
 		</tr>
 	<% end %>
 	</table>

db/migrate/085_add_role_tracker_old_status_index_to_workflows.rb

@@ -0,0 +1,9 @@
+class AddRoleTrackerOldStatusIndexToWorkflows < ActiveRecord::Migration
+  def self.up
+    add_index :workflows, [:role_id, :tracker_id, :old_status_id], :name => :workflows_role_tracker_old_status
+  end
+
+  def self.down
+    remove_index :workflows, :name => :workflows_role_tracker_old_status
+  end
+end