Method: DataMapper::Property#assert_valid_options

Defined in:
lib/dm-core/property.rb

#assert_valid_options(options) ⇒ Object (protected)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dm-core/property.rb', line 773

def assert_valid_options(options)
  keys = options.keys

  if (unknown_keys = keys - self.class.accepted_options).any?
    raise ArgumentError, "options #{unknown_keys.map { |key| key.inspect }.join(' and ')} are unknown"
  end

  options.each do |key, value|
    boolean_value = value == true || value == false

    case key
      when :field
        assert_kind_of "options[:#{key}]", value, ::String

      when :default
        if value.nil?
          raise ArgumentError, "options[:#{key}] must not be nil"
        end

      when :serial, :key, :allow_nil, :allow_blank, :required, :auto_validation
        unless boolean_value
          raise ArgumentError, "options[:#{key}] must be either true or false"
        end

        if key == :required && (keys.include?(:allow_nil) || keys.include?(:allow_blank))
          raise ArgumentError, 'options[:required] cannot be mixed with :allow_nil or :allow_blank'
        end

      when :index, :unique_index, :unique, :lazy
        unless boolean_value || value.kind_of?(Symbol) || (value.kind_of?(Array) && value.any? && value.all? { |val| val.kind_of?(Symbol) })
          raise ArgumentError, "options[:#{key}] must be either true, false, a Symbol or an Array of Symbols"
        end

      when :length
        assert_kind_of "options[:#{key}]", value, Range, ::Integer

      when :size, :precision, :scale
        assert_kind_of "options[:#{key}]", value, ::Integer

      when :reader, :writer, :accessor
        assert_kind_of "options[:#{key}]", value, Symbol

        unless VISIBILITY_OPTIONS.include?(value)
          raise ArgumentError, "options[:#{key}] must be #{VISIBILITY_OPTIONS.join(' or ')}"
        end
    end
  end
end