page_elements.rb in alchemy_cms-3.5.0.rc1

- old
+ new

@@ -22,17 +22,10 @@
         join_table: ElementToPage.table_name
 
       after_create :autogenerate_elements, unless: -> { systempage? || do_not_autogenerate }
       after_update :trash_not_allowed_elements!, if: :page_layout_changed?
       after_update :autogenerate_elements, if: :page_layout_changed?
-
-      after_destroy do
-        elements.each do |element|
-          next if element.trashed?
-          element.destroy
-        end
-      end
     end
 
     module ClassMethods
       # Copy page elements
       #
@@ -146,9 +139,19 @@
     # Warning: Since elements can be unique or limited in number,
     # it is more safe to ask for +available_element_definitions+
     #
     def element_definitions
       @_element_definitions ||= element_definitions_by_name(element_definition_names)
+    end
+
+    # All element definitions defined for page's page layout including nestable element definitions
+    #
+    def descendent_element_definitions
+      definitions = element_definitions_by_name(element_definition_names)
+      definitions.select { |d| d.key?('nestable_elements') }.each do |d|
+        definitions += element_definitions_by_name(d['nestable_elements'])
+      end
+      definitions.uniq { |d| d['name'] }
     end
 
     # All names of elements that are defined in the corresponding
     # page and cell definition.
     #