can't delete object due to foreign key constraint

Question

I\'m trying to do a simple user.destroy but running into the following error:

ERROR: update or delete on table \"users\" violates foreig

Answer 1

An easy solution is to simply cascade-delete the records in the associated table, which can be done through active record, like so:

user.rb

class User < ActiveRecord::Base
  has_many :identities, dependent: :destroy

  # rest of user class
end

Check out the documentation pertaining to has_many for more info.