tags:

views:

26

answers:

1
Q: 

Rails references...

Let's say that you have a foreign key called COMPANY_ID in the table PERSON. In the model PERSON, can you write?

validates_presence_of :company_id

or 

validates_presence_of :company

or

both?

Which is the preferred and why?

A: 

Prefere validates the foreign_key. It's better because there are no association made so 1 SQL request less.

shingara  2010-10-09 18:24:45

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