the recipe is broken, please wait until i have time to fix it, thanks.

On Dec 8, 2011, at 11:27 AM, Michael Bayer wrote:

> 
> On Dec 7, 2011, at 11:08 PM, kris wrote:
> 
>> Hmm, I think I want the opposite behavior.  I was the defualt mapper to 
>> Resource unless a more specific mapper has been defined.
>> I never defined a 'C' or 'D' and I would like simple get a Resource when no 
>> better mapper is found. 
>> i.e. I get Resource class for C, D and get a Resource_A for A and a 
>> Resource_B for B.  
>> 
>> Is this possible?
> 
> So you're looking for a row that has "C" or "D" in it to act as though it 
> were "default".    As an easy feature, that is ticket #2238 set on the 0.8 
> milestone.
> 
> the workaround for now is to use column_property() in conjunction with a 
> case() statement, I've posted the recipe for that at 
> http://www.sqlalchemy.org/trac/wiki/UsageRecipes/CaseBasedPolymorphicOn .
> 
> It will work in 0.7.3 but not in the current tip as there is a bug preventing 
> it from working.
> 
> 
> 
>> 
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