Class _String

pattern/db/__init__.py:673–679

#### FIELD #########################################################################################

class _String(str):
    # The STRING constant can be called with a length when passed to field(),
    # for example field("language", type=STRING(2), default="en", index=True).
    def __new__(self):
        return str.__new__(self, "string")
    def __call__(self, length=100):
        return "varchar(%s)" % (length>255 and 255 or (length<1 and 1 or length))

# Field type.
# Note: SQLite string fields do not impose a string limit.