Factorize try/except in setConfiguration.

git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@1023 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/storage/mysqldb.py

@@ -185,23 +185,23 @@ class MySQLDatabaseManager(DatabaseManager):
             return None
 
     def setConfiguration(self, key, value):
+        self.begin()
+        try:
             q = self.query
             e = self.escape
             key = e(str(key))
             value = e(str(value))
             q("""REPLACE INTO config VALUES ('%s', '%s')""" % (key, value))
+        except:
+            self.rollback()
+            raise
+        self.commit()
 
     def getUUID(self):
         return self.getConfiguration('uuid')
 
     def setUUID(self, uuid):
-        self.begin()
-        try:
         self.setConfiguration('uuid', uuid)
-        except:
-            self.rollback()
-            raise
-        self.commit()
 
     def getNumPartitions(self):
         n = self.getConfiguration('partitions')
@@ -209,13 +209,7 @@ class MySQLDatabaseManager(DatabaseManager):
             return int(n)
 
     def setNumPartitions(self, num_partitions):
-        self.begin()
-        try:
         self.setConfiguration('partitions', num_partitions)
-        except:
-            self.rollback()
-            raise
-        self.commit()
 
     def getNumReplicas(self):
         n = self.getConfiguration('replicas')
@@ -223,37 +217,19 @@ class MySQLDatabaseManager(DatabaseManager):
             return int(n)
 
     def setNumReplicas(self, num_replicas):
-        self.begin()
-        try:
         self.setConfiguration('replicas', num_replicas)
-        except:
-            self.rollback()
-            raise
-        self.commit()
 
     def getName(self):
         return self.getConfiguration('name')
 
     def setName(self, name):
-        self.begin()
-        try:
         self.setConfiguration('name', name)
-        except:
-            self.rollback()
-            raise
-        self.commit()
 
     def getPTID(self):
         return self.getConfiguration('ptid')
 
     def setPTID(self, ptid):
-        self.begin()
-        try:
         self.setConfiguration('ptid', ptid)
-        except:
-            self.rollback()
-            raise
-        self.commit()
 
     def getPartitionTable(self):
         q = self.query