revert setting implicit transactions to on, fix raising exceptions re…

…garding commit and rollback

ChangeLog

@@ -27,6 +27,7 @@ Tue Nov 02 09:33:00 2010 Damien Churchill <[email protected]>
 		+ feature: remove the trusted parameter to connect()
 		+ feature: add returnvalue property with the result of a callproc()
 		           call.
+		+ feature: fix raising exceptions when args[0] is not a string
 	* MANIFEST.in:
 		+ feature: include the tests
 	* setup.py:

_mssql.pyx

@@ -488,8 +488,7 @@ cdef class MSSQLConnection:
             "SET ANSI_WARNINGS ON;"             \
             "SET ANSI_NULL_DFLT_ON ON;"         \
             "SET CURSOR_CLOSE_ON_COMMIT ON;"    \
-            "SET QUOTED_IDENTIFIER ON;"         \
-            "SET IMPLICIT_TRANSACTIONS ON;"
+            "SET QUOTED_IDENTIFIER ON;"         
         )
 
         rtc = dbsqlexec(self.dbproc)

pymssql.pyx

@@ -179,7 +179,7 @@ cdef class Connection:
         try:
             self._conn.execute_non_query('BEGIN TRAN')
         except Exception, e:
-            raise OperationalError('Cannot start transation: %s' % e[0])
+            raise OperationalError('Cannot start transation: ' + str(e[0]))
 
     def __del__(self):
         if self.conn:
@@ -218,7 +218,7 @@ cdef class Connection:
             self._conn.execute_non_query('COMMIT TRAN')
             self._conn.execute_non_query('BEGIN TRAN')
         except Exception, e:
-            raise OperationalError('Cannot commit transation: %s' % e[0])
+            raise OperationalError('Cannot commit transation: ' + str(e[0]))
 
     def cursor(self, as_dict=None):
         """
@@ -240,7 +240,7 @@ cdef class Connection:
             self._conn.execute_non_query('ROLLBACK TRAN')
             self._conn.execute_non_query('BEGIN TRAN')
         except Exception, e:
-            raise OperationalError('Cannot roll back transation: %s' % e[0])
+            raise OperationalError('Cannot roll back transation: ' + str(e[0]))
 
 
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