[SESPRINGPYTHONPY-159] Added check to execute method to trap invalid …

…variable bindings.

src/springpython/database/core.py

@@ -54,6 +54,10 @@ def __setattr__(self, name, value):
 
     def execute(self, sql_statement, args = None):
         """Issue a single SQL execute, typically a DDL statement."""
+
+        if args and type(args) not in self.connection_factory.acceptable_types:
+            raise InvalidArgumentType(type(args), self.connection_factory.acceptable_types)
+
         sql_statement = self.connection_factory.convert_sql_binding(sql_statement)
 
         cursor = self.__db.cursor()

test/springpythontest/databaseCoreTestCases.py

@@ -123,6 +123,38 @@ def testQueryingOracleWithValidlyFormattedArguments(self):
 
         del(sys.modules["cx_Oracle"])
 
+    def testInsertingIntoOracleWithInvalidlyFormattedArguments(self):
+        cursor = self.mock()
+        conn = self.mock()
+
+        sys.modules["cx_Oracle"] = self.mock()
+        sys.modules["cx_Oracle"].expects(once()).method("connect").will(return_value(conn))
+
+        connection_factory = factory.cxoraConnectionFactory(username="foo", password="bar", hostname="localhost", db="mock")
+        dt = DatabaseTemplate(connection_factory)
+
+        self.assertRaises(InvalidArgumentType, dt.execute, 
+            "INSERT INTO T_UNIT (F_UNIT_PK, F_UNIT_ID, F_NAME) VALUES (?, ?, ?)",
+            (1,1,1))
+
+        del(sys.modules["cx_Oracle"])
+
+    def testInsertingIntoOracleWithInvalidlyFormattedArgumentsWithUpdateApi(self):
+        cursor = self.mock()
+        conn = self.mock()
+
+        sys.modules["cx_Oracle"] = self.mock()
+        sys.modules["cx_Oracle"].expects(once()).method("connect").will(return_value(conn))
+
+        connection_factory = factory.cxoraConnectionFactory(username="foo", password="bar", hostname="localhost", db="mock")
+        dt = DatabaseTemplate(connection_factory)
+
+        self.assertRaises(InvalidArgumentType, dt.update,
+            "INSERT INTO T_UNIT (F_UNIT_PK, F_UNIT_ID, F_NAME) VALUES (?, ?, ?)",
+            (1,1,1))
+
+        del(sys.modules["cx_Oracle"])
+
 class DatabaseTemplateMockTestCase(MockTestCase):
     """Testing the DatabaseTemplate utilizes stubbing and mocking, in order to isolate from different
     vendor implementations. This reduces the overhead in making changes to core functionality."""