Class: DynamicUniquenessValidator

Inherits:

ActiveModel::EachValidator

Object
ActiveModel::EachValidator
DynamicUniquenessValidator

show all

Defined in:: lib/dynamic_uniqueness_validator.rb

Instance Method Summary collapse

#validate_each(record, attribute, value) ⇒ Object

Instance Method Details

#validate_each(record, attribute, value) ⇒ `Object`



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# File 'lib/dynamic_uniqueness_validator.rb', line 4

def validate_each(record, attribute, value)
  record.errors.add(attribute, options[:message] || :taken) if record.public_send(options[:parent_association]).public_send(options[:child_association]).any? { |item| item != record && value == item.read_attribute(attribute) }
end