Class: Redundancy::UpdateMethodWithPrev

Inherits:
UpdateBase
  • Object
show all
Defined in:
lib/redundancy/update_method_with_prev.rb

Instance Attribute Summary

Attributes inherited from UpdateBase

#change_if, #dest, #klass, #options, #source

Instance Method Summary collapse

Methods inherited from UpdateBase

#force_update!, #initialize

Constructor Details

This class inherits a constructor from Redundancy::UpdateBase

Instance Method Details

#after_save(record) ⇒ Object 



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# File 'lib/redundancy/update_method_with_prev.rb', line 15

def after_save record
  return unless need_update? record
  set_context :update_method, :update_column

  get_target_from_association record
  get_value_from_target record

  update_target record

  return unless context(:"target_prev")

  get_value_from_target record, :prev
  update_target record, :prev
ensure
  cleanup_context
end

#before_save(record) ⇒ Object 



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# File 'lib/redundancy/update_method_with_prev.rb', line 7

def before_save record
  raise_if_class_mismatch record
  return unless foreign_key_changed? record

  get_target_from_foreign_key record, :prev
  get_target_from_relation_first_record :prev
end