def register_composite()

in functions/source/create-db/psycopg2/extras.py [0:0]

• 9 lines of code
• 7 McCabe index (conditional complexity)

def register_composite(name, conn_or_curs, globally=False, factory=None):
    """Register a typecaster to convert a composite type into a tuple.

    :param name: the name of a PostgreSQL composite type, e.g. created using
        the |CREATE TYPE|_ command
    :param conn_or_curs: a connection or cursor used to find the type oid and
        components; the typecaster is registered in a scope limited to this
        object, unless *globally* is set to `!True`
    :param globally: if `!False` (default) register the typecaster only on
        *conn_or_curs*, otherwise register it globally
    :param factory: if specified it should be a `CompositeCaster` subclass: use
        it to :ref:`customize how to cast composite types <custom-composite>`
    :return: the registered `CompositeCaster` or *factory* instance
        responsible for the conversion
    """
    if factory is None:
        factory = CompositeCaster

    caster = factory._from_db(name, conn_or_curs)
    _ext.register_type(caster.typecaster, not globally and conn_or_curs or None)

    if caster.array_typecaster is not None:
        _ext.register_type(
            caster.array_typecaster, not globally and conn_or_curs or None)

    return caster