Add warning when loosing data from custom fields when bulk editing issues (#22600).

git-svn-id: http://svn.redmine.org/redmine/trunk@16224 e93f8b46-1217-0410-a6f0-8f06a7374b81

1 files changed, 19 insertions, 0 deletions

diff --git a/app/controllers/issues_controller.rb b/app/controllers/issues_controller.rb
index 1b6a82aa4..0f66f27fb 100644
--- a/app/controllers/issues_controller.rb
+++ b/app/controllers/issues_controller.rb
@@ -213,6 +213,16 @@ class IssuesController < ApplicationController
 
     edited_issues = Issue.where(:id => @issues.map(&:id)).to_a
 
+    @values_by_custom_field = {}
+    edited_issues.each do |issue|
+      issue.custom_field_values.each do |c|
+        if c.value_present?
+          @values_by_custom_field[c.custom_field] ||= []
+          @values_by_custom_field[c.custom_field] << issue.id
+        end
+      end
+    end
+
     @allowed_projects = Issue.allowed_target_projects
     if params[:issue]
       @target_project = @allowed_projects.detect {|p| p.id.to_s == params[:issue][:project_id].to_s}
@@ -244,6 +254,15 @@ class IssuesController < ApplicationController
       end
     end
 
+    edited_issues.each do |issue|
+      issue.custom_field_values.each do |c|
+        if c.value_present? && @values_by_custom_field[c.custom_field]
+          @values_by_custom_field[c.custom_field].delete(issue.id)
+        end
+      end
+    end
+    @values_by_custom_field.delete_if {|k,v| v.blank?}
+
     @custom_fields = edited_issues.map{|i|i.editable_custom_fields}.reduce(:&).select {|field| field.format.bulk_edit_supported}
     @assignables = target_projects.map(&:assignable_users).reduce(:&)
     @versions = target_projects.map {|p| p.shared_versions.open}.reduce(:&)