[Zope] Changing DBA, how to make SQL methods to auto-update

HI all I just changed my DBA from PyGres to PoPy. It happens that I have to manually open each SQL Method (old Pygres SQL methods) and hit "save the changes" one by one in order for the new DBA to be recognized. Question is: Is there a way for SQL methods to auto-recognize that the DBA actually changed and automagically update themselves? This would save lots of time, otherwise we got to run through lots and lots of SQL methods across our sites. Any advice is appreciated. Felipe Barousse