Re: [Gnumed-devel] proposal for dbapi base class

[Karsten Hilbert]

>> What I mean is that this suggests that the entire record is
>> fetched at every invocation (subject to caching, of course).
>> No way to specify fields, no way to specify conditions apart
>> from the primary key. But that may be intentional.
> Ah, now I understand what you mean.
> No, not a problem, since all attribute access is implemented "lazy". Lazy 
> attributes in combination with backend messenging is a good caching strategy 
> anyway.
So, given the example below, where does fetch() come in ?  A
synonym (or helper method) for fetch_from_backend() ?

> Example:
> 
>       class lazytable:
>               def __getattr__(self, key):
>                       try:
>                               return self.__dict__[key]
>                       #except:
                        except KeyError:
>                               value = fetch_from_backend(key)
>                               self.__dict__[key]= value
>                               return value
                        except:
                            _log.LogException(...)

Karsten
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