Contents

module HungryForm
  module Elements::Base
    # The Element class is used in every form element. It contains the attrs
    # and methods used by all form elements, such as name, visible, dependency etc
    class Element
      include HungryForm::Elements::Base::Hashable
      attr_accessor :name, :placeholders, :resolver, :visible, :label, :dependency
      alias_method :visible?, :visible

      hashable :visible, :dependency, :name, :label

      def initialize(name, parent, resolver, attributes = {})
        @attributes = attributes.dup

        @placeholders ||= {}
        @resolver = resolver

        self.dependency ||= @attributes[:dependency]

        # The element is visible if no visible parameter passed or
        # visible param equals true and the dependency is resolved positively
        self.visible = @attributes.key?(:visible) ? @attributes[:visible] : true

        if dependency
          json_dependency = ::JSON.parse(dependency)
          self.visible &&= resolver.resolve_dependency(json_dependency)
        end

        # An element's name is prefixed with all parents names up to the page
        self.name = resolver.get_value(name, self)
        self.name = "#{parent.name}_#{name}" unless parent.nil?

        # Label can be created from name if there is no label given
        if @attributes[:label]
          self.label = resolver.get_value(@attributes[:label], self)
        else
          self.label = resolver.get_value(name, self).humanize
        end
      end

      def method_missing(method_name, *args, &block)
        # Check if an option exists
        if method_name.to_s[-1] == '?'
          return @attributes.key?(method_name.to_s[0..-2].to_sym)
        end

        # Return an attribute
        return @attributes[method_name] if @attributes.key?(method_name)
        super
      end

      def respond_to_missing?(method_name, include_private = false)
        @attributes.key?(method_name) || super
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
hungryform-0.0.4	lib/hungryform/elements/base/element.rb