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from psycopg2.extensions import adapt, new_array_type, new_type, register_adapter, register_type
from ..utils import SparseVector
class SparsevecAdapter:
def __init__(self, value):
self._value = value
def getquoted(self):
return adapt(SparseVector._to_db(self._value)).getquoted()
def cast_sparsevec(value, cur):
return SparseVector._from_db(value)
def register_sparsevec_info(oid, array_oid, scope):
sparsevec = new_type((oid,), 'SPARSEVEC', cast_sparsevec)
register_type(sparsevec, scope)
if array_oid is not None:
sparsevecarray = new_array_type((array_oid,), 'SPARSEVECARRAY', sparsevec)
register_type(sparsevecarray, scope)
register_adapter(SparseVector, SparsevecAdapter)
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