Returns the value of the attribute identified by attr_name after it has been typecast (for example, “2004-12-12” in a data column is cast to a date object, like Date.new(2004, 12, 12)).
# File lib/active_record/attribute_methods/read.rb, line 75 75: def read_attribute(attr_name) 76: attr_name = attr_name.to_s 77: attr_name = self.class.primary_key if attr_name == 'id' 78: if !(value = @attributes[attr_name]).nil? 79: if column = column_for_attribute(attr_name) 80: if unserializable_attribute?(attr_name, column) 81: unserialize_attribute(attr_name) 82: else 83: column.type_cast(value) 84: end 85: else 86: value 87: end 88: else 89: nil 90: end 91: end
Returns true if the attribute is of a text column and marked for serialization.
# File lib/active_record/attribute_methods/read.rb, line 94 94: def unserializable_attribute?(attr_name, column) 95: column.text? && self.class.serialized_attributes[attr_name] 96: end
Returns the unserialized object of the attribute.
# File lib/active_record/attribute_methods/read.rb, line 99 99: def unserialize_attribute(attr_name) 100: unserialized_object = object_from_yaml(@attributes[attr_name]) 101: 102: if unserialized_object.is_a?(self.class.serialized_attributes[attr_name]) || unserialized_object.nil? 103: @attributes.frozen? ? unserialized_object : @attributes[attr_name] = unserialized_object 104: else 105: raise SerializationTypeMismatch, 106: "#{attr_name} was supposed to be a #{self.class.serialized_attributes[attr_name]}, but was a #{unserialized_object.class.to_s}" 107: end 108: end
Disabled; run with --debug to generate this.
Generated with the Darkfish Rdoc Generator 1.1.6.