Jody Garnett ha scritto:
> Andrea Aime wrote:
>> Jody Garnett ha scritto:
>>> This is that trade off again about trying to keep going in the event 
>>> of failure, our writing guidelines encourage code like the example 
>>> you provided as a way of letting software keep going rather then fail.
>>>
>>> So taking this to the letter would be "Log and return 
>>> Filter.EXCLUDES" from the encoder, if the problem failed in an "OR" 
>>> expression perhaps we can still pull something of value out of the 
>>> situation.
>>>
>>> Cheers,
>>> Jody
>>> PS. For things it cannot encode SqlEncoder is supposed to let post 
>>> processing handle it, would love to know what the reason for this 
>>> problem is (and how we can avoid arriving there).
>>
>> SqlBuilder is supposed to split a filter into an encoable prefilter 
>> and an un-encoable post filter, and then you encode only what's 
>> encodable. So, I think the right behaviour is really to throw an 
>> exception instead of hiding split or filter construction bugs.
>> Leniency has a price, it allows you provide some kind of graceful 
>> degradation, but also hides bugs and sets the scene for unexpected 
>> behaviour.
> Cool I buy that for a dollar, can you mention in the error message that 
> the bug is actually in SqlBuilder.

Hmm... I can, but it's not always the correct message. In my case, I 
just built an invalid filter, so it wasn't really SqlBuilder fault.
Unfortunately we don't have a way to say "done building filters, are
they valid or not?"

Cheers
Andrea

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