Module: Restorm::Model::NestedAttributes::ClassMethods

Defined in:
lib/restorm/model/nested_attributes.rb

Instance Method Summary collapse

Instance Method Details

#accepts_nested_attributes_for(*associations) ⇒ Object

Allow nested attributes for an association

Examples:

class User
  include Restorm::Model

  has_one :role
  accepts_nested_attributes_for :role
end

class Role
  include Restorm::Model
end

user = User.new(name: "Tobias", role_attributes: { title: "moderator" })
user.role # => #<Role title="moderator">



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# File 'lib/restorm/model/nested_attributes.rb', line 23

def accepts_nested_attributes_for(*associations)
  allowed_association_names = association_names

  associations.each do |association_name|
    unless allowed_association_names.include?(association_name)
      raise Restorm::Errors::AssociationUnknownError, "Unknown association name :#{association_name}"
    end

    class_eval "      if method_defined?(:\#{association_name}_attributes=)\n        remove_method(:\#{association_name}_attributes=)\n      end\n\n      def \#{association_name}_attributes=(attributes)\n        self.\#{association_name}.assign_nested_attributes(attributes)\n      end\n    RUBY\n  end\nend\n", __FILE__, __LINE__ + 1