module ApiResource::Associations::ClassMethods

Public Instance Methods

association?(assoc) click to toggle source
# File lib/api_resource/associations.rb, line 79
def association?(assoc)
  self.related_objects.any? do |key, value|
    next if key.to_s == "scope"
    value.detect { |k,v| k.to_sym == assoc.to_sym }
  end
end
association_class_name(assoc) click to toggle source
# File lib/api_resource/associations.rb, line 86
def association_class_name(assoc)
  raise ArgumentError, "#{assoc} is not a valid association of #{self}" unless self.association?(assoc)
  result = self.related_objects.detect do |key,value|
    ret = value.detect{|k,v| k.to_sym == assoc.to_sym }
    return ret[1] if ret
  end
end
clear_associations() click to toggle source
# File lib/api_resource/associations.rb, line 94
def clear_associations
  self.related_objects.each do |_, val|
    val.clear
  end
end
scope(name, hsh) click to toggle source
# File lib/api_resource/associations.rb, line 59
      def scope(name, hsh)
        raise ArgumentError, "Expecting an attributes hash given #{hsh.inspect}" unless hsh.is_a?(Hash)
        self.related_objects[:scope][name.to_sym] = hsh
        # we also need to define a class method for each scope
        self.instance_eval <<-EOE, __FILE__, __LINE__ + 1
          def #{name}(opts = {})
            return ApiResource::Associations::ResourceScope.new(self, :#{name}, opts)
          end
        EOE
      end
scope?(name) click to toggle source
# File lib/api_resource/associations.rb, line 70
def scope?(name)
  self.related_objects[:scope][name.to_sym].present?
end
scope_attributes(name) click to toggle source
# File lib/api_resource/associations.rb, line 74
def scope_attributes(name)
  raise "No such scope #{name}" unless self.scope?(name)
  self.related_objects[:scope][name.to_sym]
end
scopes() click to toggle source
# File lib/api_resource/associations.rb, line 55
def scopes
  return self.related_objects[:scope]
end

Protected Instance Methods

define_association_as_attribute(assoc_type, assoc_name) click to toggle source
# File lib/api_resource/associations.rb, line 101
      def define_association_as_attribute(assoc_type, assoc_name)
        define_attributes assoc_name
        case assoc_type.to_sym
          when :has_many
            self.class_eval <<-EOE, __FILE__, __LINE__ + 1
              def #{assoc_name}
                self.attributes[:#{assoc_name}] ||= MultiObjectProxy.new(self.class.to_s, nil)
              end
            EOE
          else
            self.class_eval <<-EOE, __FILE__, __LINE__ + 1
              def #{assoc_name}
                self.attributes[:#{assoc_name}] ||= SingleObjectProxy.new(self.class.to_s, nil)
              end
            EOE
        end
        # Always define the setter the same
        self.class_eval <<-EOE, __FILE__, __LINE__ + 1
          def #{assoc_name}=(val)
            #{assoc_name}_will_change! unless self.#{assoc_name}.internal_object == val
            self.#{assoc_name}.internal_object = val
          end
        EOE
      end