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import numpy as np
from psycopg2.extensions import adapt, new_array_type, new_type, register_adapter, register_type
from ..utils import Vector
class VectorAdapter:
def __init__(self, value):
self._value = value
def getquoted(self):
return adapt(Vector._to_db(self._value)).getquoted()
def cast_vector(value, cur):
return Vector._from_db(value)
def register_vector_info(oid, array_oid, scope):
vector = new_type((oid,), 'VECTOR', cast_vector)
register_type(vector, scope)
if array_oid is not None:
vectorarray = new_array_type((array_oid,), 'VECTORARRAY', vector)
register_type(vectorarray, scope)
register_adapter(np.ndarray, VectorAdapter)
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