Let non required list/user/version custom fields to be set to blank when bulk editing (#10605).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9349 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/issues_controller.rb

@@ -420,7 +420,16 @@ private
   def parse_params_for_bulk_issue_attributes(params)
     attributes = (params[:issue] || {}).reject {|k,v| v.blank?}
     attributes.keys.each {|k| attributes[k] = '' if attributes[k] == 'none'}
-    attributes[:custom_field_values].reject! {|k,v| v.blank?} if attributes[:custom_field_values]
+    if custom = attributes[:custom_field_values]
+      custom.reject! {|k,v| v.blank?}
+      custom.keys.each do |k|
+        if custom[k].is_a?(Array)
+          custom[k] << '' if custom[k].delete('__none__')
+        else
+          custom[k] = '' if custom[k] == '__none__'
+        end
+      end
+    end
     attributes
   end
 end

app/helpers/custom_fields_helper.rb

@@ -100,6 +100,7 @@ module CustomFieldsHelper
       when "list"
         options = []
         options << [l(:label_no_change_option), ''] unless custom_field.multiple?
+        options << [l(:label_none), '__none__'] unless custom_field.is_required?
         options += custom_field.possible_values_options(projects)
         select_tag(field_name, options_for_select(options),
           :id => field_id, :multiple => custom_field.multiple?)

test/functional/issues_controller_test.rb

@@ -2665,7 +2665,7 @@ class IssuesControllerTest < ActionController::TestCase
       :attributes => {:name => "issue[custom_field_values][#{field.id}]"},
       :children => {
         :only => {:tag => 'option'},
-        :count => Project.find(1).users.count + 1
+        :count => Project.find(1).users.count + 2 # "no change" + "none" options
       }
   end
 
@@ -2681,7 +2681,7 @@ class IssuesControllerTest < ActionController::TestCase
       :attributes => {:name => "issue[custom_field_values][#{field.id}]"},
       :children => {
         :only => {:tag => 'option'},
-        :count => Project.find(1).shared_versions.count + 1
+        :count => Project.find(1).shared_versions.count + 2 # "no change" + "none" options
       }
   end
 
@@ -2698,7 +2698,7 @@ class IssuesControllerTest < ActionController::TestCase
       :attributes => {:name => "issue[custom_field_values][1][]"},
       :children => {
         :only => {:tag => 'option'},
-        :count => 3
+        :count => field.possible_values.size + 1 # "none" options
       }
   end
 
@@ -2924,6 +2924,17 @@ class IssuesControllerTest < ActionController::TestCase
     assert_equal '777', journal.details.first.value
   end
 
+  def test_bulk_update_custom_field_to_blank
+    @request.session[:user_id] = 2
+    post :bulk_update, :ids => [1, 3], :notes => 'Bulk editing custom field',
+                                     :issue => {:priority_id => '',
+                                                :assigned_to_id => '',
+                                                :custom_field_values => {'1' => '__none__'}}
+    assert_response 302
+    assert_equal '', Issue.find(1).custom_field_value(1)
+    assert_equal '', Issue.find(3).custom_field_value(1)
+  end
+
   def test_bulk_update_multi_custom_field
     field = CustomField.find(1)
     field.update_attribute :multiple, true
@@ -2942,6 +2953,20 @@ class IssuesControllerTest < ActionController::TestCase
     assert_nil Issue.find(2).custom_field_value(1)
   end
 
+  def test_bulk_update_multi_custom_field_to_blank
+    field = CustomField.find(1)
+    field.update_attribute :multiple, true
+
+    @request.session[:user_id] = 2
+    post :bulk_update, :ids => [1, 3], :notes => 'Bulk editing multi custom field',
+                                     :issue => {:priority_id => '',
+                                                :assigned_to_id => '',
+                                                :custom_field_values => {'1' => ['__none__']}}
+    assert_response 302
+    assert_equal [''], Issue.find(1).custom_field_value(1)
+    assert_equal [''], Issue.find(3).custom_field_value(1)
+  end
+
   def test_bulk_update_unassign
     assert_not_nil Issue.find(2).assigned_to
     @request.session[:user_id] = 2