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Updated SqlAlchemy + the new files

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This commit is contained in:
Christoffer Viken
2017-04-15 16:33:29 +00:00
parent e3267d4bda
commit 4669737fe3
134 changed files with 66374 additions and 4528 deletions
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156
sqlalchemy/dialects/firebird/kinterbasdb.py
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@@ -1,69 +1,119 @@
# kinterbasdb.py
# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Michael Bayer mike_mp@zzzcomputing.com
# firebird/kinterbasdb.py
# Copyright (C) 2005-2017 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
"""
The most common way to connect to a Firebird engine is implemented by
kinterbasdb__, currently maintained__ directly by the Firebird people.
.. 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
The connection URL is of the form
``firebird[+kinterbasdb]://user:password@host:port/path/to/db[?key=value&key=value...]``.
Arguments
----------
Kinterbasedb backend specific keyword arguments are:
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 details__).
* ``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 details__).
* ``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
__ http://sourceforge.net/projects/kinterbasdb
__ http://firebirdsql.org/index.php?op=devel&sub=python
__ 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
"""
from sqlalchemy.dialects.firebird.base import FBDialect, FBCompiler
from sqlalchemy import util, types as sqltypes
from .base import FBDialect, FBExecutionContext
from ... import util, types as sqltypes
from re import match
import decimal
class _FBNumeric_kinterbasdb(sqltypes.Numeric):
class _kinterbasdb_numeric(object):
def bind_processor(self, dialect):
def process(value):
if value is not None:
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.Numeric: _FBNumeric_kinterbasdb,
sqltypes.Float: _FBFloat_kinterbasdb,
}
)
def __init__(self, type_conv=200, concurrency_level=1, **kwargs):
super(FBDialect_kinterbasdb, self).__init__(**kwargs)
)
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):
k = __import__('kinterbasdb')
return k
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')
@@ -72,17 +122,22 @@ class FBDialect_kinterbasdb(FBDialect):
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)
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
# 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)
self.dbapi.init(type_conv=type_conv,
concurrency_level=concurrency_level)
return ([], opts)
def _get_server_version_info(self, connection):
@@ -96,24 +151,33 @@ class FBDialect_kinterbasdb(FBDialect):
# that for backward compatibility reasons returns a string like
# LI-V6.3.3.12981 Firebird 2.0
# where the first version is a fake one resembling the old
# Interbase signature. This is more than enough for our purposes,
# as this is mainly (only?) used by the testsuite.
from re import match
# Interbase signature.
fbconn = connection.connection
version = fbconn.server_version
m = match('\w+-V(\d+)\.(\d+)\.(\d+)\.(\d+) \w+ (\d+)\.(\d+)', version)
if not m:
raise AssertionError("Could not determine version from string '%s'" % version)
return tuple([int(x) for x in m.group(5, 6, 4)])
def is_disconnect(self, e):
if isinstance(e, (self.dbapi.OperationalError, self.dbapi.ProgrammingError)):
return self._parse_version_info(version)
def _parse_version_info(self, version):
m = match(
r'\w+-V(\d+)\.(\d+)\.(\d+)\.(\d+)( \w+ (\d+)\.(\d+))?', version)
if not m:
raise AssertionError(
"Could not determine version from string '%s'" % version)
if m.group(5) != None:
return tuple([int(x) for x in m.group(6, 7, 4)] + ['firebird'])
else:
return tuple([int(x) for x in m.group(1, 2, 3)] + ['interbase'])
def is_disconnect(self, e, connection, cursor):
if isinstance(e, (self.dbapi.OperationalError,
self.dbapi.ProgrammingError)):
msg = str(e)
return ('Unable to complete network request to host' in msg or
'Invalid connection state' in msg or
'Invalid cursor state' in msg)
'Invalid cursor state' in msg or
'connection shutdown' in msg)
else:
return False