cakephp Database Design -


my data structure follows:

company hasmany regions region hasmany markets market hasmany stores store hasmany employees

i have appropriate belongsto necessary.

i used foreign keys associations. example, each store has market_id.

when delete company record, correct region deleted. however, occurred me need associated markets, stores, , employees deleted. or if deleted market, need stores , employees deleted.

what appropriate manner of accomplishing this?

  1. would add additional foreign keys tables? example, stores need region_id , company_id in addition market_id?

use dependent association:

http://book.cakephp.org/2.0/en/models/associations-linking-models-together.html#hasmany

dependent: when dependent set true, recursive model deletion possible. in example, comment records deleted when associated user record has been deleted.

you don't need add additional foreign keys.


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