Recently I came in a situation where I wanted to extend all entities of a specific type (payment) to reliably provide (and store) an additional property. At first glance this seems like a no brainer: simply use hook_entity_* to save/update/load the property to or from the database and that should do it. Turns out it isn't … and there is a lot to learn about how entities work in D7.

Lets take a look at a specific example.

Tags:

• drupal7
• Drupal Planet
• entity