ah yes, i forgot that already have that in dbcook! but i dont think it will avoid adding things to collections. okay thanks i'll dig further. On Friday 05 December 2008 19:39, Andreas Jung wrote: > On 05.12.2008 17:10 Uhr, [EMAIL PROTECTED] wrote: > > i'm asking about SA-related stuff, i know how to handle the python > > side. how to "lock" relations, collections etc - how to make an > > instance readonly? > > > > and eventualy if it is poosible after that to unlock that instance at > > some point - so lock all the user-visible stuff but leave some > > flag "_locked" writable. > > You might register a MapperExtension with your mapper. Inside the > before_*() methods you could perform some checks in order to avoid any > kind of write operations or modifications. > > -aj > >
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