модуль ActiveRecord::ConnectionAdapters::PostgreSQL::ColumnMethods
Публичные методы экземпляров
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 38
def bigserial(*args, **options)
args.each { |name| column(name, :bigserial, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 42
def bit(*args, **options)
args.each { |name| column(name, :bit, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 46
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 114
def box(*args, **options)
args.each { |name| column(name, :box, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 50
def cidr(*args, **options)
args.each { |name| column(name, :cidr, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 126
def circle(*args, **options)
args.each { |name| column(name, :circle, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 54
def citext(*args, **options)
args.each { |name| column(name, :citext, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 58
def daterange(*args, **options)
args.each { |name| column(name, :daterange, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 62
def hstore(*args, **options)
args.each { |name| column(name, :hstore, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 66
def inet(*args, **options)
args.each { |name| column(name, :inet, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 70
def int4range(*args, **options)
args.each { |name| column(name, :int4range, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 74
def int8range(*args, **options)
args.each { |name| column(name, :int8range, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 78
def json(*args, **options)
args.each { |name| column(name, :json, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 82
def jsonb(*args, **options)
args.each { |name| column(name, :jsonb, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 106
def line(*args, **options)
args.each { |name| column(name, :line, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 110
def lseg(*args, **options)
args.each { |name| column(name, :lseg, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 86
def ltree(*args, **options)
args.each { |name| column(name, :ltree, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 90
def macaddr(*args, **options)
args.each { |name| column(name, :macaddr, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 94
def money(*args, **options)
args.each { |name| column(name, :money, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 98
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 path(*args, **options)
args.each { |name| column(name, :path, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 102
def point(*args, **options)
args.each { |name| column(name, :point, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 122
def polygon(*args, **options)
args.each { |name| column(name, :polygon, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 33 def primary_key(name, type = :primary_key, **options) options[:default] = options.fetch(:default, 'uuid_generate_v4()') if type == :uuid super end
Определяет поле первичного ключа. Поддерживается использование родного типа PostgreSQL UUID, и его можно использовать, определив таблицы таким образом:
create_table :stuffs, id: :uuid do |t| t.string :content t.timestamps end
По умолчанию используется функция +uuid_generate_v4()+ из расширения uuid-ossp, которое ОБЯЗАТЕЛЬНО должно быть включено в вашей базе данных. Чтобы включить расширение uuid-ossp, можно использовать метод enable_extension в миграциях. Чтобы использовать первичный ключ UUID без включённого uuid-ossp, можно установить параметр :default в nil:
create_table :stuffs, id: false do |t| t.primary_key :id, :uuid, default: nil t.uuid :foo_id t.timestamps end
Также можно передать другую функцию генерации UUID из uuid-ossp или другой библиотеки.
Обратите внимание, что установка значения по умолчанию для первичного ключа UUID в nil потребует от вас обеспечить, что вы всегда предоставляете значение UUID перед сохранением записи (так как первичные ключи не могут быть nil). Это можно сделать, например, с помощью метода SecureRandom.uuid и обратного вызова before_save.
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 130
def serial(*args, **options)
args.each { |name| column(name, :serial, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 134
def tsrange(*args, **options)
args.each { |name| column(name, :tsrange, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 138
def tstzrange(*args, **options)
args.each { |name| column(name, :tstzrange, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 142
def tsvector(*args, **options)
args.each { |name| column(name, :tsvector, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 146
def uuid(*args, **options)
args.each { |name| column(name, :uuid, options) }
end # File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 150
def xml(*args, **options)
args.each { |name| column(name, :xml, options) }
end
© 2004–2018 David Heinemeier Hansson
Licensed under the MIT License.