Namespace
Methods
I
T
Instance Public methods
id()

Returns the primary key value

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 13
def id
  read_attribute(self.class.primary_key)
end
id=(value)

Sets the primary key value

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 18
def id=(value)
  write_attribute(self.class.primary_key, value)
end
id?()

Queries the primary key value

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 23
def id?
  query_attribute(self.class.primary_key)
end
to_key()

Returns this record’s primary key value wrapped in an Array if one is available

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 7
def to_key
  key = self.id
  [key] if key
end