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# File 'lib/attribute_normalizer/model_inclusions.rb', line 9
def normalize_attributes(*attributes, &block)
options = attributes.last.is_a?(::Hash) ? attributes.pop : {}
normalizers = [ options[:with] ].flatten.compact
normalizers = [ options[:before] ].flatten.compact if block_given? && normalizers.empty?
post_normalizers = [ options[:after] ].flatten.compact if block_given?
if normalizers.empty? && !block_given?
normalizers = AttributeNormalizer.configuration.default_normalizers end
attributes.each do |attribute|
define_method "normalize_#{attribute}" do |value|
normalized = value
normalizers.each do |normalizer_name|
unless normalizer_name.kind_of?(Symbol)
normalizer_name, options = normalizer_name.keys[0], normalizer_name[ normalizer_name.keys[0] ]
end
normalizer = AttributeNormalizer.configuration.normalizers[normalizer_name]
raise AttributeNormalizer::MissingNormalizer.new("No normalizer was found for #{normalizer_name}") unless normalizer
normalized = normalizer.respond_to?(:normalize) ? normalizer.normalize( normalized , options) : normalizer.call(normalized, options)
end
normalized = block_given? ? yield(normalized) : normalized
if block_given?
post_normalizers.each do |normalizer_name|
unless normalizer_name.kind_of?(Symbol)
normalizer_name, options = normalizer_name.keys[0], normalizer_name[ normalizer_name.keys[0] ]
end
normalizer = AttributeNormalizer.configuration.normalizers[normalizer_name]
raise AttributeNormalizer::MissingNormalizer.new("No normalizer was found for #{normalizer_name}") unless normalizer
normalized = normalizer.respond_to?(:normalize) ? normalizer.normalize( normalized , options) : normalizer.call(normalized, options)
end
end
normalized
end
self.send :private, "normalize_#{attribute}"
if method_defined?(:"#{attribute}=")
alias_method "old_#{attribute}=", "#{attribute}="
define_method "#{attribute}=" do |value|
normalized_value = self.send(:"normalize_#{attribute}", value)
self.send("old_#{attribute}=", normalized_value)
end
else
define_method "#{attribute}=" do |value|
super(self.send(:"normalize_#{attribute}", value))
end
end
end
end
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