module ActiveRecord::AttributeMethods::PrimaryKey

Public Instance Methods

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 18
def id
  _read_attribute(@primary_key)
end

Returns the primary key column's value.

id=(value) Show source

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 23
def id=(value)
  _write_attribute(@primary_key, value)
end

Sets the primary key column's value.

id?() Show source

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 28
def id?
  query_attribute(@primary_key)
end

Queries the primary key column's value.

id_before_type_cast() Show source

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 33
def id_before_type_cast
  read_attribute_before_type_cast(@primary_key)
end

Returns the primary key column's value before type cast.

id_in_database() Show source

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 43
def id_in_database
  attribute_in_database(@primary_key)
end

Returns the primary key column's value from the database.

id_was() Show source

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 38
def id_was
  attribute_was(@primary_key)
end

Returns the primary key column's previous value.

to_key() Show source

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 12
def to_key
  key = id
  [key] if key
end

Returns this record's primary key value wrapped in an array if one is available.