From fb3b904b8ffbe65ba11ed68252cdb441421b9a2b Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Sat, 4 Feb 2012 17:36:15 +0000
Subject: Better handling of issue update conflicts (#8691).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8774 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 app/controllers/issues_controller.rb | 37 ++++++++++++++++++++++++++++++++----
 1 file changed, 33 insertions(+), 4 deletions(-)

(limited to 'app/controllers/issues_controller.rb')

diff --git a/app/controllers/issues_controller.rb b/app/controllers/issues_controller.rb
index 9976a93cc..df130f9d5 100644
--- a/app/controllers/issues_controller.rb
+++ b/app/controllers/issues_controller.rb
@@ -171,7 +171,7 @@ class IssuesController < ApplicationController
   end
 
   def edit
-    update_issue_from_params
+    return unless update_issue_from_params
 
     respond_to do |format|
       format.html { }
@@ -180,9 +180,23 @@ class IssuesController < ApplicationController
   end
 
   def update
-    update_issue_from_params
+    return unless update_issue_from_params
+    saved = false
+    begin
+      saved = @issue.save_issue_with_child_records(params, @time_entry)
+    rescue ActiveRecord::StaleObjectError
+      @conflict = true
+      if params[:last_journal_id]
+        if params[:last_journal_id].present?
+          last_journal_id = params[:last_journal_id].to_i
+          @conflict_journals = @issue.journals.all(:conditions => ["#{Journal.table_name}.id > ?", last_journal_id])
+        else
+          @conflict_journals = @issue.journals.all
+        end
+      end
+    end
 
-    if @issue.save_issue_with_child_records(params, @time_entry)
+    if saved
       render_attachment_warning_if_needed(@issue)
       flash[:notice] = l(:notice_successful_update) unless @issue.current_journal.new_record?
 
@@ -345,7 +359,22 @@ private
 
     @notes = params[:notes] || (params[:issue].present? ? params[:issue][:notes] : nil)
     @issue.init_journal(User.current, @notes)
-    @issue.safe_attributes = params[:issue]
+
+    issue_attributes = params[:issue]
+    if issue_attributes && params[:conflict_resolution]
+      case params[:conflict_resolution]
+      when 'overwrite'
+        issue_attributes = issue_attributes.dup
+        issue_attributes.delete(:lock_version)
+      when 'add_notes'
+        issue_attributes = {}
+      when 'cancel'
+        redirect_to issue_path(@issue)
+        return false
+      end
+    end
+    @issue.safe_attributes = issue_attributes
+    true
   end
 
   # TODO: Refactor, lots of extra code in here
-- 
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