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36 lines
1.1 KiB
36 lines
1.1 KiB
3 years ago
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from peewee import *
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try:
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import psycopg
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#from psycopg.types.json import Jsonb
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except ImportError:
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psycopg = None
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class Psycopg3Database(PostgresqlDatabase):
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def _connect(self):
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if psycopg is None:
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raise ImproperlyConfigured('psycopg3 is not installed!')
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conn = psycopg.connect(dbname=self.database, **self.connect_params)
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if self._isolation_level is not None:
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conn.isolation_level = self._isolation_level
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return conn
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def get_binary_type(self):
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return psycopg.Binary
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def _set_server_version(self, conn):
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self.server_version = conn.pgconn.server_version
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if self.server_version >= 90600:
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self.safe_create_index = True
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def is_connection_usable(self):
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if self._state.closed:
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return False
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# Returns True if we are idle, running a command, or in an active
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# connection. If the connection is in an error state or the connection
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# is otherwise unusable, return False.
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conn = self._state.conn
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return conn.pgconn.transaction_status < conn.TransactionStatus.INERROR
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