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from psycopg2.extensions import adapt, new_array_type, new_type, register_adapter, register_type
from ..utils import HalfVector
class HalfvecAdapter:
def __init__(self, value):
self._value = value
def getquoted(self):
return adapt(HalfVector._to_db(self._value)).getquoted()
def cast_halfvec(value, cur):
return HalfVector._from_db(value)
def register_halfvec_info(oid, array_oid, scope):
halfvec = new_type((oid,), 'HALFVEC', cast_halfvec)
register_type(halfvec, scope)
if array_oid is not None:
halfvecarray = new_array_type((array_oid,), 'HALFVECARRAY', halfvec)
register_type(halfvecarray, scope)
register_adapter(HalfVector, HalfvecAdapter)
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