Class: ActiveRecord::Associations::HasManyAssociation

Inherits:
Object
  • Object
show all
Defined in:
lib/composite_primary_keys/associations/has_many_association.rb

Instance Method Summary collapse

Instance Method Details

#delete_count(method, scope) ⇒ Object 



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# File 'lib/composite_primary_keys/associations/has_many_association.rb', line 19

def delete_count(method, scope)
  if method == :delete_all
    scope.delete_all
  else
    # CPK
    # scope.update_all(nullified_owner_attributes)
    conds = Array(reflection.foreign_key).inject(Hash.new) do |mem, key|
      mem[key] = nil
      mem
    end
    conds[reflection.type] = nil if reflection.type.present?
    scope.update_all(conds)
  end
end

#delete_records(records, method) ⇒ Object 



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# File 'lib/composite_primary_keys/associations/has_many_association.rb', line 4

def delete_records(records, method)
  if method == :destroy
    records.each(&:destroy!)
    update_counter(-records.length) unless reflection.inverse_updates_counter_cache?
  # CPK
  elsif self.reflection.klass.composite?
    predicate = cpk_in_predicate(self.scope.table, self.reflection.klass.primary_keys, records.map(&:id))
    scope = self.scope.where(predicate)
    update_counter(-delete_count(method, scope))
  else
    scope = self.scope.where(reflection.klass.primary_key => records)
    update_counter(-delete_count(method, scope))
  end
end