method
add_single_associated_save_callbacks
v2.1.0 -
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Class: ActiveRecord::Associations::ClassMethods
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add_single_associated_save_callbacks(association_name)
private
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# File activerecord/lib/active_record/associations.rb, line 1161 def add_single_associated_save_callbacks(association_name) method_name = "validate_associated_records_for_#{association_name}".to_sym define_method(method_name) do association = instance_variable_get("@#{association_name}") if !association.nil? errors.add "#{association_name}" unless association.target.nil? || association.valid? end end validate method_name end