provide sql_for_enabled_module

app/models/additionals_query.rb

@@ -4,6 +4,18 @@ module AdditionalsQuery
   end
 
   module InstanceMethods
+    def sql_for_enabled_module(table_field, module_names)
+      module_names = Array(module_names)
+
+      sql = []
+      module_names.each do |module_name|
+        sql << "EXISTS(SELECT 1 FROM #{EnabledModule.table_name} WHERE #{EnabledModule.table_name}.project_id=#{table_field}" \
+               " AND #{EnabledModule.table_name}.name='#{module_name}')"
+      end
+
+      sql.join(' AND ')
+    end
+
     def initialize_ids_filter(options = {})
       if options[:label]
         add_available_filter 'ids', type: :integer, label: options[:label]

docs/index.rst

@@ -149,7 +149,6 @@ Features
 * configurable issue rules
 
   * freeze closed issue
-  * closing issue with open sub issues
   * change assigned_to automatically, if issue status changes
   * assigned_to has changed, but status change is required, too