Use a simple count query.

git-svn-id: http://svn.redmine.org/redmine/trunk@13750 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/workflows_controller.rb

@@ -21,7 +21,9 @@ class WorkflowsController < ApplicationController
   before_filter :require_admin
 
   def index
-    @workflow_counts = WorkflowTransition.count_by_tracker_and_role
+    @roles = Role.sorted.select(&:consider_workflow?)
+    @trackers = Tracker.sorted
+    @workflow_counts = WorkflowTransition.group(:tracker_id, :role_id).count
   end
 
   def edit

app/models/workflow_transition.rb

@@ -18,23 +18,6 @@
 class WorkflowTransition < WorkflowRule
   validates_presence_of :new_status
 
-  # Returns workflow transitions count by tracker and role
-  def self.count_by_tracker_and_role
-    counts = connection.select_all("SELECT role_id, tracker_id, count(id) AS c FROM #{table_name} WHERE type = 'WorkflowTransition' GROUP BY role_id, tracker_id")
-    roles    = Role.sorted.to_a.select(&:consider_workflow?)
-    trackers = Tracker.sorted
-    result = []
-    trackers.each do |tracker|
-      t = []
-      roles.each do |role|
-        row = counts.detect {|c| c['role_id'].to_s == role.id.to_s && c['tracker_id'].to_s == tracker.id.to_s}
-        t << [role, (row.nil? ? 0 : row['c'].to_i)]
-      end
-      result << [tracker, t]
-    end
-    result
-  end
-
   def self.replace_transitions(trackers, roles, transitions)
     trackers = Array.wrap trackers
     roles = Array.wrap roles

app/views/workflows/index.html.erb

@@ -1,6 +1,6 @@
 <%= title [l(:label_workflow), workflows_edit_path], l(:field_summary) %>
 
-<% if @workflow_counts.empty? %>
+<% if @roles.empty? || @trackers.empty? %>
 <p class="nodata"><%= l(:label_no_data) %></p>
 <% else %>
 <div class="autoscroll">
@@ -8,19 +8,19 @@
 <thead>
     <tr>
     <th></th>
-    <% @workflow_counts.first.last.each do |role, count| %>
+    <% @roles.each do |role| %>
     <th>
-        <%= content_tag(role.builtin? ? 'em' : 'span', h(role.name)) %>
+        <%= content_tag(role.builtin? ? 'em' : 'span', role.name) %>
     </th>
-
     <% end %>
     </tr>
 </thead>
 <tbody>
-<% @workflow_counts.each do |tracker, roles| -%>
+<% @trackers.each do |tracker| -%>
 <tr class="<%= cycle('odd', 'even') %>">
-  <td class="name"><%= h tracker %></td>
-  <% roles.each do |role, count| -%>
+  <td class="name"><%= tracker.name %></td>
+  <% @roles.each do |role| -%>
+  <% count = @workflow_counts[[tracker.id, role.id]] || 0 %>
     <td>
       <%= link_to((count > 0 ? count : image_tag('false.png')), {:action => 'edit', :role_id => role, :tracker_id => tracker}, :title => l(:button_edit)) %>
     </td>