Various code cleaning, mainly on User, Permission and IssueStatus models.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@414 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue_status.rb

@@ -36,12 +36,19 @@ class IssueStatus < ActiveRecord::Base
   end
 
   # Returns an array of all statuses the given role can switch to
+  # Uses association cache when called more than one time
   def new_statuses_allowed_to(role, tracker)
-    statuses = []
-    for workflow in self.workflows
-      statuses << workflow.new_status if workflow.role_id == role.id and workflow.tracker_id == tracker.id
-    end unless role.nil? or tracker.nil?
-    statuses
+    new_statuses = [self] + workflows.select {|w| w.role_id == role.id && w.tracker_id == tracker.id}.collect{|w| w.new_status}
+    new_statuses.sort{|x, y| x.position <=> y.position }
+  end
+  
+  # Same thing as above but uses a database query
+  # More efficient than the previous method if called just once
+  def find_new_statuses_allowed_to(role, tracker)  
+    new_statuses = [self] + workflows.find(:all, 
+                                           :include => :new_status,
+                                           :conditions => ["role_id=? and tracker_id=?", role.id, tracker.id]).collect{ |w| w.new_status }
+    new_statuses.sort{|x, y| x.position <=> y.position }
   end
   
 private

app/models/permission.rb

@@ -57,7 +57,7 @@ class Permission < ActiveRecord::Base
         find(:all, :include => :roles).each {|p| perms.store "#{p.controller}/#{p.action}", p.roles.collect {|r| r.id } }
         perms
       end
-    allowed_to_public(action) or (@@cached_perms_for_roles[action] and @@cached_perms_for_roles[action].include? role)
+    allowed_to_public(action) or (role && @@cached_perms_for_roles[action] && @@cached_perms_for_roles[action].include?(role.id))
   end
   
   def self.allowed_to_role_expired

app/models/user.rb

@@ -124,14 +124,8 @@ class User < ActiveRecord::Base
     User.hash_password(clear_password) == self.hashed_password
   end
   
-  def role_for_project(project_id)
-    @role_for_projects ||=
-      begin
-        roles = {}
-        self.memberships.each { |m| roles.store m.project_id, m.role_id }
-        roles
-      end
-    @role_for_projects[project_id]
+  def role_for_project(project)
+    memberships.detect {|m| m.project_id == project.id}
   end
   
   def pref