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#855 ✓wontfix
Thijs de Vries

HABTM creates duplicate row on push

Reported by Thijs de Vries | August 18th, 2008 @ 10:11 PM | in 2.x

Say I have two classes, foo and bar which have and belong to many of each other.

foo < ActiveRecord::Base has_and_belongs_to_many :bars end

bar < ActiveRecord::Base has_and_belongs_to_many :foos end

I use the appropriate join table bars_foos. If I do

foo = Foo.find(1); foo.bars.push(Bar.find(1)); foo.bars.push(Bar.find(1));

two rows will be added into the bars_foos database with foo_id = 1 and bar_id = 1

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