Namespace
Methods
Constants
ATTRIBUTE_TYPES_CACHED_BY_DEFAULT | = | [:datetime, :timestamp, :time, :date] |
Instance Public methods
Source: show
# File activerecord/lib/active_record/attribute_methods/read.rb, line 110 def _read_attribute(attr_name) attr_name = attr_name.to_s attr_name = self.class.primary_key if attr_name == 'id' value = @attributes[attr_name] unless value.nil? if column = column_for_attribute(attr_name) if unserializable_attribute?(attr_name, column) unserialize_attribute(attr_name) else column.type_cast(value) end else value end end end
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)).
Source: show
# File activerecord/lib/active_record/attribute_methods/read.rb, line 101 def read_attribute(attr_name) method = "_#{attr_name}" if respond_to? method send method if @attributes.has_key?(attr_name.to_s) else _read_attribute attr_name end end
Returns true if the attribute is of a text column and marked for serialization.
Source: show
# File activerecord/lib/active_record/attribute_methods/read.rb, line 128 def unserializable_attribute?(attr_name, column) column.text? && self.class.serialized_attributes.include?(attr_name) end
Returns the unserialized object of the attribute.
Source: show
# File activerecord/lib/active_record/attribute_methods/read.rb, line 133 def unserialize_attribute(attr_name) coder = self.class.serialized_attributes[attr_name] unserialized_object = coder.load(@attributes[attr_name]) @attributes.frozen? ? unserialized_object : @attributes[attr_name] = unserialized_object end