sqlalchemy_utils.types.choice.ChoiceType(choices, impl=None)[source]¶ChoiceType offers way of having fixed set of choices for given column. It
│ │ │ could work with a list of tuple (a collection of key-value pairs), or
│ │ │ -integrate with enum in the standard library of Python 3.4+ (the
│ │ │ +integrate with enum in the standard library of Python 3.4+ (the
│ │ │ enum34 backported package on PyPI is compatible too for < 3.4).
Columns with ChoiceTypes are automatically coerced to Choice objects while
│ │ │ a list of tuple been passed to the constructor. If a subclass of
│ │ │ -enum.Enum is passed, columns will be coerced to enum.Enum
│ │ │ +enum.Enum is passed, columns will be coerced to enum.Enum
│ │ │ objects instead.
class User(Base):
│ │ │ TYPES = [
│ │ │ (u'admin', u'Admin'),
│ │ │ (u'regular-user', u'Regular user')
│ │ │ ]
│ │ ├── ./usr/share/doc/python-sqlalchemy-utils-doc/html/database_helpers.html
│ │ │ @@ -278,15 +278,15 @@
│ │ │ constraint = list(table.foreign_keys)[0].constraint
│ │ │
│ │ │ has_unique_index(constraint) # True
│ │ │