Added support for SA 0.5 (previously only 0.6 was supported).

sqlbase7_sa/sqlbase7_sa05.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  SQLBase7-SA -- SQLAlchemy driver/dialect for Centura SQLBase v7
+#  Copyright © 2010 Lance Edgar
+#
+#  This file is part of SQLBase7-SA.
+#
+#  SQLBase7-SA 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.
+#
+#  SQLBase7-SA 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 SQLBase7-SA.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+
+from sqlalchemy import types, Column, PrimaryKeyConstraint
+from sqlalchemy.sql.compiler import OPERATORS
+from sqlalchemy.sql import operators
+
+from sqlbase7_sa.sqlbase7 import SQLBase7Dialect
+
+
+OPERATORS[operators.ilike_op] = lambda x, y, escape=None: "@lower(%s) LIKE @lower(%s)" % (x, y) + (escape and ' ESCAPE \'%s\'' % escape or '')
+
+
+class SQLBase7Dialect_SA05(SQLBase7Dialect):
+
+    @classmethod
+    def dbapi(cls):
+        import pyodbc
+        return pyodbc
+
+    def table_names(self, connection, schema):
+        cursor = connection.connection.cursor()
+        table_names = [row.NAME for row in cursor.execute(
+                "SELECT NAME FROM %s.SYSTABLES WHERE REMARKS IS NOT NULL" % schema
+                )]
+        cursor.close()
+        return table_names
+
+    def reflecttable(self, connection, table, include_columns=None):
+        if table.schema is None:
+            table.schema = connection.default_schema_name()
+
+        sql = "SELECT NAME,COLTYPE,NULLS FROM %s.SYSCOLUMNS WHERE TBNAME = '%s'" % (table.schema, table.name)
+        if include_columns:
+            sql += " AND NAME NOT IN (%s)" % ','.join(include_columns)
+        cursor = connection.connection.cursor()
+        for row in cursor.execute(sql):
+            table.append_column(Column(row.NAME, self._type_map[row.COLTYPE]))
+        cursor.close()
+
+        cursor = connection.connection.cursor()
+        for row in cursor.execute("SELECT COLNAME FROM %s.SYSPKCONSTRAINTS WHERE NAME = '%s' ORDER BY PKCOLSEQNUM" % (table.schema, table.name)):
+            table.append_constraint(PrimaryKeyConstraint(row.COLNAME))
+        cursor.close()