Fixed: error when bulk editing with Postgresql

git-svn-id: http://redmine.rubyforge.org/svn/trunk@866 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/projects_controller.rb

@@ -339,11 +339,11 @@ class ProjectsController < ApplicationController
   # Bulk edit issues
   def bulk_edit_issues
     if request.post?
-      status = IssueStatus.find_by_id(params[:status_id])
-      priority = Enumeration.find_by_id(params[:priority_id])
-      assigned_to = User.find_by_id(params[:assigned_to_id])
-      category = @project.issue_categories.find_by_id(params[:category_id])
-      fixed_version = @project.versions.find_by_id(params[:fixed_version_id])
+      status = params[:status_id].blank? ? nil : IssueStatus.find_by_id(params[:status_id])
+      priority = params[:priority_id].blank? ? nil : Enumeration.find_by_id(params[:priority_id])
+      assigned_to = params[:assigned_to_id].blank? ? nil : User.find_by_id(params[:assigned_to_id])
+      category = params[:category_id].blank? ? nil : @project.issue_categories.find_by_id(params[:category_id])
+      fixed_version = params[:fixed_version_id].blank? ? nil : @project.versions.find_by_id(params[:fixed_version_id])
       issues = @project.issues.find_all_by_id(params[:issue_ids])
       unsaved_issue_ids = []      
       issues.each do |issue|

app/views/issues/_bulk_edit_form.rhtml

@@ -13,7 +13,7 @@
 </p>
 <p>
 <label><%= l(:field_assigned_to) %>: 
-<%= select_tag('assigned_to_id', content_tag('option', l(:label_no_change_option)) +
+<%= select_tag('assigned_to_id', content_tag('option', l(:label_no_change_option), :value => '') +
                                  content_tag('option', l(:label_nobody), :value => 'none') +
                                  options_from_collection_for_select(@project.assignable_users, :id, :name)) %></label>
 <label><%= l(:field_fixed_version) %>: