Site structure

Approach had been replaced at Entity level: please see Extended Content Entity module

This module is for developpers only.
It is under active developpment.

It simplifies the definition of custom field types, with their respective default widget and formatter.

abandoned module for :
https://www.drupal.org/project/custom_field_base

Improves performance "Simple hierarchical select" widgets — disable load all entities in list.

Entity reference field that comes with Drupal core allows creating a linear list of entity references. This module allows creating hierarchical entity references where each entity reference is in a parent/child relationship with another entity reference. It also supports revisions if used together with Entity reference revisions module.

This module adds "Save and Add Another" button to entities, that permits you to create an entity content and then continue to create another entity content.