Exception: PaperTrailAssociationTracking::Reifiers::HasOne::FoundMoreThanOne Private

Inherits:
RuntimeError
  • Object
show all
Defined in:
lib/paper_trail_association_tracking/reifiers/has_one.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

A more helpful error message, instead of the AssociationTypeMismatch you would get if, eg. we were to try to assign a Bicycle to the :car association (before, if there were multiple records we would just take the first and hope for the best).

Constant Summary collapse

MESSAGE_FMT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

<<~STR
  Unable to reify has_one association. Expected to find one %s,
  but found %d.

  This is a known issue, and a good example of why association tracking
  is an experimental feature that should not be used in production.

  That said, this is a rare error. In spec/models/person_spec.rb we
  reproduce it by having two STI models with the same foreign_key (Car
  and Bicycle are both Vehicles and the FK for both is owner_id)

  If you'd like to help fix this error, please read
  https://github.com/airblade/paper_trail/issues/594
  and see spec/models/person_spec.rb
STR

Instance Method Summary collapse

Constructor Details

#initialize(base_class_name, num_records_found) ⇒ FoundMoreThanOne

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of FoundMoreThanOne.



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# File 'lib/paper_trail_association_tracking/reifiers/has_one.rb', line 30

def initialize(base_class_name, num_records_found)
  @base_class_name = base_class_name.to_s
  @num_records_found = num_records_found.to_i
end

Instance Method Details

#message ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/paper_trail_association_tracking/reifiers/has_one.rb', line 35

def message
  format(MESSAGE_FMT, @base_class_name, @num_records_found)
end