Merge r23678 from trunk to 5.1-stable (#41935).

git-svn-id: https://svn.redmine.org/redmine/branches/5.1-stable@23680 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/custom_fields/index.api.rsb

@@ -15,6 +15,7 @@ api.array :custom_fields do
       api.multiple          field.multiple?
       api.default_value     field.default_value
       api.visible           field.visible?
+      api.editable          field.editable?
 
       values = field.possible_values_options
       if values.present?

test/integration/api_test/custom_fields_test.rb

@@ -37,6 +37,8 @@ class Redmine::ApiTest::CustomFieldsTest < Redmine::ApiTest::Base
         end
         assert_select 'trackers[type=array]'
         assert_select 'roles[type=array]'
+        assert_select 'visible', :text => 'true'
+        assert_select 'editable', :text => 'true'
       end
     end
   end