Sunday, October 23, 2022

Re: Sanity check please

On October 23, 2022 4:54:00 PM CDT, Mike Dewhirst <miked@dewhirst.com.au> wrote:
>On 23/10/2022 11:55 pm, Ryan Nowakowski wrote:
>It still seems to work fine in real life but my unit tests take exception to force_insert being a KeyError when *args, **kwargs are included in the super calls. I have now removed those *args, **kwargs with no apparent ill effects.

Yup, I missed that when reading your code below. Typically if your specify a keyword arg like force_insert, it needs to be after *args.


>>
>> On October 23, 2022 2:52:36 AM CDT, Mike Dewhirst <miked@dewhirst.com.au> wrote:
>>
>> In the Django Admin I have a model central to a bunch of FKs and
>> M:Ms plus a lot of processing on saving.
>>
>> This is my solution which seems to work but frightens me a bit.
>>
>> class Chemical(models.Model):
>>
>>     # lots of fields
>>
>>     def save(self, *args, **kwargs):
>>
>>         self.process_stuff_based_on_field_values_pre_save()
>>
>>         first = False
>>
>>         if not self.id:
>>
>>             first = True
>>
>>             super().save(force_insert=True, *args, **kwargs)
>>
>>         if self.id:
>>
>>             self.create_or_update_a_bunch_of_related_records(first=first)
>>
>>         super().save(force_insert=False, *args, **kwargs)
>>
>>         self.create_or_update_a_bunch_of_m2m_records(first=first)
>>
>> def process_stuff_based_on_field_values_pre_save(self, first=False):
>> ...
>>
>>
>>
>> def create_or_update_a_bunch_of_m2m_records(self, first=False):
>> ...
>>
>>
>>     # lots of other methods
>>
>> Thanks for any warnings, caveats
>>
>> Cheers
>>
>> Mike
>>
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>
>

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