module ActiveRecord::ConnectionAdapters::PostgreSQL::ColumnMethods
Public Instance Methods
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 54 def bigserial(*args, **options) args.each { |name| column(name, :bigserial, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 58 def bit(*args, **options) args.each { |name| column(name, :bit, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 62 def bit_varying(*args, **options) args.each { |name| column(name, :bit_varying, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 134 def box(*args, **options) args.each { |name| column(name, :box, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 66 def cidr(*args, **options) args.each { |name| column(name, :cidr, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 146 def circle(*args, **options) args.each { |name| column(name, :circle, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 70 def citext(*args, **options) args.each { |name| column(name, :citext, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 74 def daterange(*args, **options) args.each { |name| column(name, :daterange, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 78 def hstore(*args, **options) args.each { |name| column(name, :hstore, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 82 def inet(*args, **options) args.each { |name| column(name, :inet, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 90 def int4range(*args, **options) args.each { |name| column(name, :int4range, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 94 def int8range(*args, **options) args.each { |name| column(name, :int8range, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 86 def interval(*args, **options) args.each { |name| column(name, :interval, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 98 def jsonb(*args, **options) args.each { |name| column(name, :jsonb, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 126 def line(*args, **options) args.each { |name| column(name, :line, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 130 def lseg(*args, **options) args.each { |name| column(name, :lseg, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 102 def ltree(*args, **options) args.each { |name| column(name, :ltree, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 106 def macaddr(*args, **options) args.each { |name| column(name, :macaddr, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 110 def money(*args, **options) args.each { |name| column(name, :money, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 114 def numrange(*args, **options) args.each { |name| column(name, :numrange, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 118 def oid(*args, **options) args.each { |name| column(name, :oid, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 138 def path(*args, **options) args.each { |name| column(name, :path, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 122 def point(*args, **options) args.each { |name| column(name, :point, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 142 def polygon(*args, **options) args.each { |name| column(name, :polygon, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 46 def primary_key(name, type = :primary_key, **options) if type == :uuid options[:default] = options.fetch(:default, "gen_random_uuid()") end super end
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 from the pgcrypto
extension. As that extension is only available in PostgreSQL 9.4+, for earlier versions an explicit default can be set to use +uuid_generate_v4()+ from the uuid-ossp
extension instead:
create_table :stuffs, id: false do |t| t.primary_key :id, :uuid, default: "uuid_generate_v4()" t.uuid :foo_id t.timestamps end
To enable the appropriate extension, which is a requirement, use the enable_extension
method in your migrations.
To use a UUID primary key without any of the extensions, 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.
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 150 def serial(*args, **options) args.each { |name| column(name, :serial, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 154 def tsrange(*args, **options) args.each { |name| column(name, :tsrange, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 158 def tstzrange(*args, **options) args.each { |name| column(name, :tstzrange, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 162 def tsvector(*args, **options) args.each { |name| column(name, :tsvector, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 166 def uuid(*args, **options) args.each { |name| column(name, :uuid, options) } end
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 170 def xml(*args, **options) args.each { |name| column(name, :xml, options) } end
© 2004–2018 David Heinemeier Hansson
Licensed under the MIT License.