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2006 Jul 07
1
Multiple table SQL query in rails?
Table A has many table B''s. So the foreign key in table B is a_id. I want to select a single record from table A that does not have any table B''s. The problem is that the foreign key is in table B. Is there a simple way to do this with the find method in active record? Or do I need to select all and loop through them all and check until I find one? Thanks for your