module ActiveRecord::ConnectionAdapters::PostgreSQL::ColumnMethods
Public instance methods
bigserial(*names, **options)
bit(*names, **options)
bit_varying(*names, **options)
box(*names, **options)
cidr(*names, **options)
circle(*names, **options)
citext(*names, **options)
daterange(*names, **options)
enum(*names, **options)
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 173
define_column_methods :bigserial, :bit, :bit_varying, :cidr, :citext, :daterange,
:hstore, :inet, :interval, :int4range, :int8range, :jsonb, :ltree, :macaddr,
:money, :numrange, :oid, :point, :line, :lseg, :box, :path, :polygon, :circle,
:serial, :tsrange, :tstzrange, :tsvector, :uuid, :xml, :timestamptz, :enum
hstore(*names, **options)
inet(*names, **options)
int4range(*names, **options)
int8range(*names, **options)
interval(*names, **options)
jsonb(*names, **options)
line(*names, **options)
lseg(*names, **options)
ltree(*names, **options)
macaddr(*names, **options)
money(*names, **options)
numrange(*names, **options)
oid(*names, **options)
path(*names, **options)
point(*names, **options)
polygon(*names, **options)
primary_key(name, type = :primary_key, **options)
Defines the primary key field. Use of the native PostgreSQL UUID type is supported, and can be used by defining your tables as such:
create_table :stuffs, id: :uuid do |t|
t.string :content
t.timestamps
end
By default, this will use the gen_random_uuid() function.
To use a UUID primary key without any defaults, set the :default option to nil:
create_table :stuffs, id: false do |t|
t.primary_key :id, :uuid, default: nil
t.uuid :foo_id
t.timestamps
end
You may also pass a custom stored procedure that returns a UUID or use a different UUID generation function from another library.
Note that setting the UUID primary key default value to nil will require you to assure that you always provide a UUID value before saving a record (as primary keys cannot be nil). This might be done via the SecureRandom.uuid method and a before_save callback, for instance.
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 37
def primary_key(name, type = :primary_key, **options)
if type == :uuid
options[:default] = options.fetch(:default, "gen_random_uuid()")
end
super
endserial(*names, **options)
timestamptz(*names, **options)
tsrange(*names, **options)
tstzrange(*names, **options)
tsvector(*names, **options)
uuid(*names, **options)
xml(*names, **options)