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Exception: ActiveRecord::HasOneThroughCantAssociateThroughCollection

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ActiveRecordError, StandardError
Instance Chain:
self, ActiveRecordError, StandardError
Inherits: ActiveRecord::ActiveRecordError
Defined in: activerecord/lib/active_record/associations.rb

Class Method Summary

Constructor Details

.new(owner_class_name = nil, reflection = nil, through_reflection = nil) ⇒ HasOneThroughCantAssociateThroughCollection

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# File 'activerecord/lib/active_record/associations.rb', line 135



def initialize(owner_class_name = nil, reflection = nil, through_reflection = nil)
  if owner_class_name && reflection && through_reflection
    super("Cannot have a has_one :through association '#{owner_class_name}##{reflection.name}' where the :through association '#{owner_class_name}##{through_reflection.name}' is a collection. Specify a has_one or belongs_to association in the :through option instead.")
  else
    super("Cannot have a has_one :through association.")
  end
end