Initial commit.

Author: lgedgar

.gitignore

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+sqlalchemy_pervasive.egg-info

CHANGES.rst

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+
+0.1.0
+-----
+
+* Initial version.

COPYING.txt

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+
+sqlalchemy-pervasive
+====================
+
+A SQLAlchemy dialect for the `Pervasive PSQL`_ database engine.
+
+.. _Pervasive PSQL: http://www.pervasive.com/database/

README.txt

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+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  sqlalchemy-pervasive -- SQLAlchemy Dialect for Pervasive PSQL
+#  Copyright © 2013 Lance Edgar
+#
+#  This file is part of sqlalchemy-pervasive.
+#
+#  sqlalchemy-pervasive is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by the
+#  Free Software Foundation, either version 3 of the License, or (at your
+#  option) any later version.
+#
+#  sqlalchemy-pervasive is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+#  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  sqlalchemy-pervasive.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+
+import os.path
+from setuptools import setup, find_packages
+
+
+here = os.path.abspath(os.path.dirname(__file__))
+execfile(os.path.join(here, 'sqlalchemy_pervasive', '_version.py'))
+
+README = open(os.path.join(here, 'README.txt')).read()
+CHANGES = open(os.path.join(here, 'CHANGES.rst')).read()
+
+
+requires = [
+    #
+    # Version numbers within comments below have specific meanings.
+    # Basically the 'low' value is a "soft low," and 'high' a "soft high."
+    # In other words:
+    #
+    # If either a 'low' or 'high' value exists, the primary point to be
+    # made about the value is that it represents the most current (stable)
+    # version available for the package (assuming typical public access
+    # methods) whenever this project was started and/or documented.
+    # Therefore:
+    #
+    # If a 'low' version is present, you should know that attempts to use
+    # versions of the package significantly older than the 'low' version
+    # may not yield happy results.  (A "hard" high limit may or may not be
+    # indicated by a true version requirement.)
+    #
+    # Similarly, if a 'high' version is present, and especially if this
+    # project has laid dormant for a while, you may need to refactor a bit
+    # when attempting to support a more recent version of the package.  (A
+    # "hard" low limit should be indicated by a true version requirement
+    # when a 'high' version is present.)
+    #
+    # In any case, developers and other users are encouraged to play
+    # outside the lines with regard to these soft limits.  If bugs are
+    # encountered then they should be filed as such.
+    #
+    # package                           # low                   high
+
+    'pyodbc',                           # 2.1.11
+    'SQLAlchemy',                       # 0.8.2
+    ]
+
+
+setup(
+    name = "sqlalchemy-pervasive",
+    version = __version__,
+    author = "Lance Edgar",
+    author_email = "lance@edbob.org",
+    license = "GNU GPL v3",
+    description = "SQLAlchemy Dialect for Pervasive PSQL",
+    long_description = README + '\n\n' +  CHANGES,
+
+    classifiers = [
+        'Development Status :: 3 - Alpha',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)',
+        'Natural Language :: English',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 2.6',
+        'Programming Language :: Python :: 2.7',
+        'Topic :: Software Development :: Libraries :: Python Modules',
+        ],
+
+    install_requires = requires,
+    packages = find_packages(),
+    include_package_data = True,
+
+    entry_points = """
+
+[sqlalchemy.dialects]
+pervasive = sqlalchemy_pervasive.pyodbc:PervasiveDialect_pyodbc
+
+""",
+    )

setup.py

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+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  sqlalchemy-pervasive -- SQLAlchemy Dialect for Pervasive PSQL
+#  Copyright © 2013 Lance Edgar
+#
+#  This file is part of sqlalchemy-pervasive.
+#
+#  sqlalchemy-pervasive is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by the
+#  Free Software Foundation, either version 3 of the License, or (at your
+#  option) any later version.
+#
+#  sqlalchemy-pervasive is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+#  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  sqlalchemy-pervasive.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+
+from ._version import __version__
+
+from sqlalchemy.dialects import registry
+
+
+registry.register('pervasive', 'sqlalchemy_pervasive.pyodbc', 'PervasiveDialect_pyodbc')

sqlalchemy_pervasive/__init__.py

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+__version__ = '0.1.0'

sqlalchemy_pervasive/_version.py

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+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  sqlalchemy-pervasive -- SQLAlchemy Dialect for Pervasive PSQL
+#  Copyright © 2013 Lance Edgar
+#
+#  This file is part of sqlalchemy-pervasive.
+#
+#  sqlalchemy-pervasive is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by the
+#  Free Software Foundation, either version 3 of the License, or (at your
+#  option) any later version.
+#
+#  sqlalchemy-pervasive is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+#  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  sqlalchemy-pervasive.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+"""
+Support for the Pervasive PSQL database engine.
+"""
+
+from sqlalchemy.sql.compiler import SQLCompiler
+from sqlalchemy.engine.default import DefaultDialect
+from sqlalchemy.exc import InvalidRequestError
+
+
+class PervasiveCompiler(SQLCompiler):
+    """
+    Custom SQL statement compiler for Pervasive PSQL.
+    """
+
+    # This logic was basically copied from the ``sqlalchemy-access`` dialect.
+
+    def get_select_precolumns(self, select):
+        s = 'DISTINCT ' if select._distinct else ''
+        if select._limit:
+            s += 'TOP {0} '.format(select._limit)
+        if select._offset:
+            raise InvalidRequestError(
+                "Pervasive PSQL does not support TOP (limit) with an offset")
+        return s
+
+    def limit_clause(self, select):
+        return ""
+
+
+class PervasiveDialect(DefaultDialect):
+
+    name = 'pervasive'
+
+    statement_compiler = PervasiveCompiler

sqlalchemy_pervasive/base.py

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+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  sqlalchemy-pervasive -- SQLAlchemy Dialect for Pervasive PSQL
+#  Copyright © 2013 Lance Edgar
+#
+#  This file is part of sqlalchemy-pervasive.
+#
+#  sqlalchemy-pervasive is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by the
+#  Free Software Foundation, either version 3 of the License, or (at your
+#  option) any later version.
+#
+#  sqlalchemy-pervasive is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+#  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  sqlalchemy-pervasive.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+"""
+Support for Pervasive PSQL via ``pyodbc``.
+"""
+
+from sqlalchemy.connectors.pyodbc import PyODBCConnector
+
+from .base import PervasiveDialect
+
+
+class PervasiveDialect_pyodbc(PyODBCConnector, PervasiveDialect):
+
+    pass