From 9ccccb9984851dba181322f77d30be8f20e627b7 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Sun, 11 Apr 2010 17:47:29 +0000
Subject: [PATCH] Do not raise an error when destroying a Version with assigned
 issues.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3668 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 app/controllers/versions_controller.rb | 12 +++++++-----
 app/models/version.rb                  | 12 ++++--------
 2 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/app/controllers/versions_controller.rb b/app/controllers/versions_controller.rb
index dc1b7eb2b..05c9743eb 100644
--- a/app/controllers/versions_controller.rb
+++ b/app/controllers/versions_controller.rb
@@ -80,11 +80,13 @@ class VersionsController < ApplicationController
   end
 
   def destroy
-    @version.destroy
-    redirect_to :controller => 'projects', :action => 'settings', :tab => 'versions', :id => @project
-  rescue
-    flash[:error] = l(:notice_unable_delete_version)
-    redirect_to :controller => 'projects', :action => 'settings', :tab => 'versions', :id => @project
+    if @version.fixed_issues.empty?
+      @version.destroy
+      redirect_to :controller => 'projects', :action => 'settings', :tab => 'versions', :id => @project
+    else
+      flash[:error] = l(:notice_unable_delete_version)
+      redirect_to :controller => 'projects', :action => 'settings', :tab => 'versions', :id => @project
+    end
   end
   
   def status_by
diff --git a/app/models/version.rb b/app/models/version.rb
index f9b48fb11..e8a416008 100644
--- a/app/models/version.rb
+++ b/app/models/version.rb
@@ -1,5 +1,5 @@
-# redMine - project management software
-# Copyright (C) 2006  Jean-Philippe Lang
+# Redmine - project management software
+# Copyright (C) 2006-2010  Jean-Philippe Lang
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -16,10 +16,9 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 class Version < ActiveRecord::Base
-  before_destroy :check_integrity
   after_update :update_issues_from_sharing_change
   belongs_to :project
-  has_many :fixed_issues, :class_name => 'Issue', :foreign_key => 'fixed_version_id'
+  has_many :fixed_issues, :class_name => 'Issue', :foreign_key => 'fixed_version_id', :dependent => :nullify
   acts_as_customizable
   acts_as_attachable :view_permission => :view_files,
                      :delete_permission => :manage_files
@@ -156,10 +155,7 @@ class Version < ActiveRecord::Base
     end
   end
   
-private
-  def check_integrity
-    raise "Can't delete version" if self.fixed_issues.find(:first)
-  end
+  private
 
   # Update the issue's fixed versions. Used if a version's sharing changes.
   def update_issues_from_sharing_change