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I need to write an uninstall use-case for my custom entity. I just want to know what operations I should take care of, in order to completely uninstall my entity/module and all attached fields (including custom fields created by Field API).
Should I use hook_uninstall and how should I implement this hook?
The tables declared by the hook_schema() will be automatically remove when you uninstall your module.
If you need to remove other tables or variables use the hook_uninstall()
I think the use of function field_attach_delete_bundle would be a better approache here.
