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\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # firebird/kinterbasdb.py # Copyright (C) 2005-2021 the SQLAlchemy authors and contributors # # # This module is part of SQLAlchemy and is released under # the MIT License: http://www.opensource.org/licenses/mit-license.php """ .. dialect:: firebird+kinterbasdb :name: kinterbasdb :dbapi: kinterbasdb :connectstring: firebird+kinterbasdb://user:password@host:port/path/to/db[?key=value&key=value...] :url: http://firebirdsql.org/index.php?op=devel&sub=python Arguments ---------- The Kinterbasdb backend accepts the ``enable_rowcount`` and ``retaining`` arguments accepted by the :mod:`sqlalchemy.dialects.firebird.fdb` dialect. In addition, it also accepts the following: * ``type_conv`` - select the kind of mapping done on the types: by default SQLAlchemy uses 200 with Unicode, datetime and decimal support. See the linked documents below for further information. * ``concurrency_level`` - set the backend policy with regards to threading issues: by default SQLAlchemy uses policy 1. See the linked documents below for further information. .. seealso:: http://sourceforge.net/projects/kinterbasdb http://kinterbasdb.sourceforge.net/dist_docs/usage.html#adv_param_conv_dynamic_type_translation http://kinterbasdb.sourceforge.net/dist_docs/usage.html#special_issue_concurrency """ # noqa import decimal from re import match from .base import FBDialect from .base import FBExecutionContext from ... import types as sqltypes from ... import util class _kinterbasdb_numeric(object): def bind_processor(self, dialect): def process(value): if isinstance(value, decimal.Decimal): return str(value) else: return value return process class _FBNumeric_kinterbasdb(_kinterbasdb_numeric, sqltypes.Numeric): pass class _FBFloat_kinterbasdb(_kinterbasdb_numeric, sqltypes.Float): pass class FBExecutionContext_kinterbasdb(FBExecutionContext): @property def rowcount(self): if self.execution_options.get( "enable_rowcount", self.dialect.enable_rowcount ): return self.cursor.rowcount else: return -1 class FBDialect_kinterbasdb(FBDialect): driver = "kinterbasdb" supports_sane_rowcount = False supports_sane_multi_rowcount = False execution_ctx_cls = FBExecutionContext_kinterbasdb supports_native_decimal = True colspecs = util.update_copy( FBDialect.colspecs, { sqltypes.Numeric: _FBNumeric_kinterbasdb, sqltypes.Float: _FBFloat_kinterbasdb, }, ) def __init__( self, type_conv=200, concurrency_level=1, enable_rowcount=True, retaining=False, **kwargs ): super(FBDialect_kinterbasdb, self).__init__(**kwargs) self.enable_rowcount = enable_rowcount self.type_conv = type_conv self.concurrency_level = concurrency_level self.retaining = retaining if enable_rowcount: self.supports_sane_rowcount = True @classmethod def dbapi(cls): return __import__("kinterbasdb") def do_execute(self, cursor, statement, parameters, context=None): # kinterbase does not accept a None, but wants an empty list # when there are no arguments. cursor.execute(statement, parameters or []) def do_rollback(self, dbapi_connection): dbapi_connection.rollback(self.retaining) def do_commit(self, dbapi_connection): dbapi_connection.commit(self.retaining) def create_connect_args(self, url): opts = url.translate_connect_args(username="user") if opts.get("port"): opts["host"] = "%s/%s" % (opts["host"], opts["port"]) del opts["port"] opts.update(url.query) util.coerce_kw_type(opts, "type_conv", int) type_conv = opts.pop("type_conv", self.type_conv) concurrency_level = opts.pop( "concurrency_level", self.concurrency_level ) if self.dbapi is not None: initialized = getattr(self.dbapi, "initialized", None) if initialized is None: # CVS rev 1.96 changed the name of the attribute: # http://kinterbasdb.cvs.sourceforge.net/viewvc/kinterbasdb/ # Kinterbasdb-3.0/__init__.py?r1=1.95&r2=1.96 initialized = getattr(self.dbapi, "_initialized", False) if not initialized: self.dbapi.init( type_conv=type_conv, concurrency_level=concurrency_level ) return