[rails] do we need database level constraints

Posted by shrimpy on Stack Overflow See other posts from Stack Overflow or by shrimpy
Published on 2010-04-07T01:46:13Z Indexed on 2010/04/07 1:53 UTC
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i have the same problem as in the following post

http://stackoverflow.com/questions/1451570/ruby-on-rails-database-migration-not-creating-foreign-keys-in-mysql-tables

so i am wondering, why rails do not support generate foreign key by default??? it is not necessary??? or we suppose to do it manually?

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