Class: ActiveRecord::AssociationTypeMismatch

Class | ActiveRecord::AssociationTypeMismatch
In: | lib/active_record/base.rb
Parent: | ActiveRecordError

Raised when an object assigned to an association has an incorrect type.

      class Ticket < ActiveRecord::Base
        has_many :patches
      end

      class Patch < ActiveRecord::Base
        belongs_to :ticket
      end

      # Comments are not patches, this assignment raises AssociationTypeMismatch.
      @ticket.patches << Comment.new(:content => "Please attach tests to your patch.")

[Validate]