lib/dm/matchers/validate_uniqueness_of.rb
module DataMapper
module Matchers
def validate_uniqueness_of(property)
ValidateUniquenessOf.new(property)
end
class ValidateUniquenessOf < ValidationMatcher
set_validation_subject "uniqueness"
def matches?(model)
model_class = model.is_a?(Class) ? model : model.class
validators = model_class.validators.contexts[:default]
uniqueness_of = validators.find do |validator|
validator.is_a? DataMapper::Validations::UniquenessValidator and validator.field_name == @property
end
return false unless uniqueness_of
return false if @msg and @msg != uniqueness_of.options[:message]
true
end
end
end
end