W3cubDocs

module ActiveRecord::AttributeMethods::Read

Public Instance Methods

_read_attribute(attr_name, &block) Show source

# File activerecord/lib/active_record/attribute_methods/read.rb, line 38
def _read_attribute(attr_name, &block) # :nodoc
  sync_with_transaction_state if @transaction_state&.finalized?
  @attributes.fetch_value(attr_name.to_s, &block)
end

This method exists to avoid the expensive primary_key check internally, without breaking compatibility with the #read_attribute API

Also aliased as: attribute

read_attribute(attr_name, &block) Show source

# File activerecord/lib/active_record/attribute_methods/read.rb, line 28
def read_attribute(attr_name, &block)
  name = attr_name.to_s
  name = self.class.attribute_aliases[name] || name

  name = @primary_key if name == "id" && @primary_key
  _read_attribute(name, &block)
end

Returns the value of the attribute identified by attr_name after it has been typecast (for example, “2004-12-12” in a date column is cast to a date object, like Date.new(2004, 12, 12)).