Remove Elixir library
Update SQLAlchemy
This commit is contained in:
Ruud
@@ -1,58 +1,48 @@
|
||||
# firebird/kinterbasdb.py
|
||||
# Copyright (C) 2005-2013 the SQLAlchemy authors and contributors <see AUTHORS file>
|
||||
# Copyright (C) 2005-2014 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 futher information.
|
||||
|
||||
* enable_rowcount - True by default, setting this to False disables
|
||||
the usage of "cursor.rowcount" with the
|
||||
Kinterbasdb dialect, which SQLAlchemy ordinarily calls upon automatically
|
||||
after any UPDATE or DELETE statement. When disabled, SQLAlchemy's
|
||||
ResultProxy will return -1 for result.rowcount. The rationale here is
|
||||
that Kinterbasdb requires a second round trip to the database when
|
||||
.rowcount is called - since SQLA's resultproxy automatically closes
|
||||
the cursor after a non-result-returning statement, rowcount must be
|
||||
called, if at all, before the result object is returned. Additionally,
|
||||
cursor.rowcount may not return correct results with older versions
|
||||
of Firebird, and setting this flag to False will also cause the
|
||||
SQLAlchemy ORM to ignore its usage. The behavior can also be controlled on a
|
||||
per-execution basis using the `enable_rowcount` option with
|
||||
:meth:`execution_options()`::
|
||||
.. seealso::
|
||||
|
||||
conn = engine.connect().execution_options(enable_rowcount=True)
|
||||
r = conn.execute(stmt)
|
||||
print r.rowcount
|
||||
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, FBExecutionContext
|
||||
from sqlalchemy import util, types as sqltypes
|
||||
from sqlalchemy.util.compat import decimal
|
||||
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 isinstance(value, decimal.Decimal):
|
||||
@@ -61,6 +51,13 @@ class _FBNumeric_kinterbasdb(sqltypes.Numeric):
|
||||
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):
|
||||
@@ -70,6 +67,7 @@ class FBExecutionContext_kinterbasdb(FBExecutionContext):
|
||||
else:
|
||||
return -1
|
||||
|
||||
|
||||
class FBDialect_kinterbasdb(FBDialect):
|
||||
driver = 'kinterbasdb'
|
||||
supports_sane_rowcount = False
|
||||
@@ -81,24 +79,37 @@ class FBDialect_kinterbasdb(FBDialect):
|
||||
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,
|
||||
enable_rowcount=True, **kwargs):
|
||||
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')
|
||||
@@ -117,7 +128,8 @@ class FBDialect_kinterbasdb(FBDialect):
|
||||
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,
|
||||
|
||||
Reference in New Issue
Block a user