ClassMethods¶
Constants¶
Methods¶
- #attribute
Defines an attribute
For each attribute that is defined, a getter and setter will be added as an instance method to the model. An {AttributeDefinition} instance will be added to result of the attributes class method.
def attribute(name) if dangerous_attribute?(name) fail Neo4j::DangerousAttributeError, %(an attribute method named "#{name}" would conflict with an existing method) else attribute!(name) end end
- #attribute_names
Returns an Array of attribute names as Strings
def attribute_names attributes.keys end
- #attributes
Returns a Hash of AttributeDefinition instances
def attributes @attributes ||= ActiveSupport::HashWithIndifferentAccess.new end
- #dangerous_attribute?
Determine if a given attribute name is dangerous
Some attribute names can cause conflicts with existing methods on an object. For example, an attribute named “timeout” would conflict with the timeout method that Ruby’s Timeout library mixes into Object.
def dangerous_attribute?(name) attribute_methods(name).detect do |method_name| !DEPRECATED_OBJECT_METHODS.include?(method_name.to_s) && allocate.respond_to?(method_name, true) end unless attribute_names.include? name.to_s end
- #inspect
Returns the class name plus its attribute names
def inspect inspected_attributes = attribute_names.sort attributes_list = "(#{inspected_attributes.join(', ')})" unless inspected_attributes.empty? "#{name}#{attributes_list}" end