Exception: ActiveRecord::AssociationTypeMismatch

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain: self, `ActiveRecordError`, StandardError
Instance Chain: self, `ActiveRecordError`, StandardError
Inherits:	ActiveRecord::ActiveRecordError `::Object` StandardError ActiveRecord::ActiveRecordError ActiveRecord::AssociationTypeMismatch
Defined in:	activerecord/lib/active_record/errors.rb

Overview

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.