fix for recent sql errors around connection object

sickbeard/db.py

@@ -126,7 +126,6 @@ class DBConnection:
 
             while attempt < 5:
                 try:
-
                     with self.connection as trans:
                         for qu in querylist:
                             if len(qu) == 1:
@@ -142,8 +141,8 @@ class DBConnection:
                     return sqlResult
                 except sqlite3.OperationalError, e:
                     sqlResult = []
-                    if trans.connection:
-                        trans.rollback()
+                    if self.connection:
+                        self.connection.rollback()
                     if "unable to open database file" in e.args[0] or "database is locked" in e.args[0]:
                         logger.log(u"DB error: " + ex(e), logger.WARNING)
                         attempt += 1
@@ -152,8 +151,8 @@ class DBConnection:
                         raise
                 except sqlite3.DatabaseError, e:
                     sqlResult = []
-                    if trans.connection:
-                        trans.rollback()
+                    if self.connection:
+                        self.connection.rollback()
                     logger.log(u"Fatal error executing query: " + ex(e), logger.ERROR)
                     raise