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Lance Edgar
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33
sqlbase7/__init__.py
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33
sqlbase7/__init__.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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################################################################################
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#
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# PySQLBase7 -- SQLAlchemy driver/dialect for Centura SQLBase v7
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# Copyright © 2010 Lance Edgar
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#
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# This file is part of PySQLBase7.
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#
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# PySQLBase7 is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# PySQLBase7 is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with PySQLBase7. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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from sqlbase7 import base
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from sqlbase7 import pyodbc
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from sqlbase7._version import __version__
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# default dialect
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base.dialect = pyodbc.dialect
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26
sqlbase7/_version.py
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26
sqlbase7/_version.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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################################################################################
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#
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# PySQLBase7 -- SQLAlchemy driver/dialect for Centura SQLBase v7
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# Copyright © 2010 Lance Edgar
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#
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# This file is part of PySQLBase7.
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#
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# PySQLBase7 is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# PySQLBase7 is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with PySQLBase7. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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__version__ = '0.1a1'
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85
sqlbase7/base.py
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85
sqlbase7/base.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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################################################################################
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#
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# PySQLBase7 -- SQLAlchemy driver/dialect for Centura SQLBase v7
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# Copyright © 2010 Lance Edgar
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#
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# This file is part of PySQLBase7.
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#
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# PySQLBase7 is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# PySQLBase7 is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with PySQLBase7. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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from sqlalchemy.engine import default
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from sqlalchemy import types
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class SQLBase7Dialect(default.DefaultDialect):
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name = 'sqlbase7'
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type_map = {
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'CHAR' : types.CHAR,
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'DATE' : types.DATE,
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'DECIMAL' : types.DECIMAL,
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'FLOAT' : types.FLOAT,
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'SMALLINT' : types.SMALLINT,
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'TIME' : types.TIME,
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'TIMESTMP' : types.TIMESTAMP,
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'VARCHAR' : types.VARCHAR,
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}
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def _check_unicode_returns(self, connection):
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return False
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def get_table_names(self, schema=None, connection=None):
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cursor = schema.connection.cursor()
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table_names = [row.NAME for row in cursor.execute(
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"SELECT NAME FROM SYSADM.SYSTABLES WHERE REMARKS IS NOT NULL"
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)]
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cursor.close()
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return table_names
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def get_columns(self, connection, table_name, schema=None, **kw):
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cursor = connection.connection.cursor()
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columns = []
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for row in cursor.execute("SELECT NAME,COLTYPE,NULLS FROM SYSADM.SYSCOLUMNS WHERE TBNAME = '%s'" % table_name):
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columns.append({
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'name' : row.NAME,
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'type' : self.type_map[row.COLTYPE],
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'nullable' : row.NULLS == 'Y',
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'default' : None,
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'autoincrement' : False,
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})
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cursor.close()
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return columns
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def get_primary_keys(self, connection, table_name, schema=None, **kw):
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cursor = connection.connection.cursor()
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primary_keys = [row.NAME for row in cursor.execute(
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"SELECT NAME FROM SYSADM.SYSPKCONSTRAINTS WHERE NAME = '%s' ORDER BY PKCOLSEQNUM" % table_name
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)]
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cursor.close()
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return primary_keys
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def get_foreign_keys(self, connection, table_name, schema=None, **kw):
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return []
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def get_indexes(self, connection, table_name, schema=None, **kw):
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return []
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43
sqlbase7/pyodbc.py
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43
sqlbase7/pyodbc.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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################################################################################
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#
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# PySQLBase7 -- SQLAlchemy driver/dialect for Centura SQLBase v7
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# Copyright © 2010 Lance Edgar
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#
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# This file is part of PySQLBase7.
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#
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# PySQLBase7 is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# PySQLBase7 is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with PySQLBase7. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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from sqlalchemy.connectors.pyodbc import PyODBCConnector
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from sqlbase7.base import SQLBase7Dialect
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class SQLBase7_pyodbc(PyODBCConnector, SQLBase7Dialect):
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def create_connect_args(self, url):
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connection_string = "DRIVER={Centura SQLBase 3.5 32-bit Driver -NT & Win95};SERVER=%s;DATABASE=%s;UID=%s;PWD=%s" % (
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url.host,
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url.database,
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url.username,
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url.password,
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)
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return [connection_string], {}
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dialect = SQLBase7_pyodbc
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55
sqlbase7/tests/__init__.py
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55
sqlbase7/tests/__init__.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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################################################################################
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#
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# PySQLBase7 -- SQLAlchemy driver/dialect for Centura SQLBase v7
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# Copyright © 2010 Lance Edgar
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#
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# This file is part of PySQLBase7.
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#
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# PySQLBase7 is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# PySQLBase7 is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with PySQLBase7. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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import unittest
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from sqlalchemy import create_engine, MetaData
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# NOTE: This whole project exists for the sake of accessing legacy CAM32 databases,
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# so it should come as no surprise that these tests are only expected to leverage
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# such a specific database. If you do not have a CAM32 database, or if yours
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# happens to be set up in a non-standard way, etc., then you'll need to change the
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# TestCase.setUp() method to reflect your environment.
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class TestCase(unittest.TestCase):
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def setUp(self):
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self.engine = create_engine("sqlbase7://odbc:readonly@server1/cam32")
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class ConnectionTestCase(TestCase):
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def runTest(self):
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connection = self.engine.connect()
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connection.close()
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class ReflectionTestCase(TestCase):
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def runTest(self):
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metadata = MetaData(bind=self.engine, reflect=True)
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self.assert_(metadata.tables)
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