On Friday 13 June 2008 16:34:47 Paul Johnston wrote: > Hi, > > I don't think that is a very workable strategy in the long run :( > There > > > are far to many bogus restrictions in some databases, e.g. > > Oracle, for any meaningful program to > > be written to work on all platforms w/o support/wrapping/hiding > > of ugly details by SA. > > This is often a difficulty for libraries that provide a portable > layer over different implementations. GUI toolkits are a good > example. The library essentially has three choices: > 1) Only expose functionality that exists on all the implementations > 2) Expose the user to the slight differences between > implementations > 3) Expose consistent functionality, and where an > implementation lacks support, fake it > In practice, (1) is usually a poor option as it's too restrictive. > SQLAlchemy currently takes approach (2). There is definitely > consistency merit for approach (3), but it comes at a cost - > there's more "magic" going on, which could be confusing in some > circumstances. i think there's something 2.5, allow user to make his own support/settings, let him take the decision - preferences-like; e.g. a widget with a set of general attributes and several sets of implementation-dependent extra attributes, switched depending on implementation - the user can setup them all.
well maybe i got a mix of all them 3, for different aspects. e.g. if oracle db will disallow me to use my 50-long names, i'll mangle them somewhere in the middle, but will not allow such meaningless restriction to cripple all the model above. while for other things i just surrender and dont use the features... --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
