Adds a workflow overview screen.

Workflow setup moved to a dedicated controller.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1914 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/workflow.rb

@@ -21,4 +21,23 @@ class Workflow < ActiveRecord::Base
   belongs_to :new_status, :class_name => 'IssueStatus', :foreign_key => 'new_status_id'
 
   validates_presence_of :role, :old_status, :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 #{Workflow.table_name} GROUP BY role_id, tracker_id")
+    roles = Role.find(:all, :order => 'builtin, position')
+    trackers = Tracker.find(:all, :order => 'position')
+    
+    result = []
+    trackers.each do |tracker|
+      t = []
+      roles.each do |role|
+        row = counts.detect {|c| c['role_id'] == role.id.to_s && c['tracker_id'] = tracker.id.to_s}
+        t << [role, (row.nil? ? 0 : row['c'].to_i)]
+      end
+      result << [tracker, t]
+    end
+    
+    result
+  end
 end