Catching the serializer.errors and format your own error container don't
work?
Em sexta-feira, 25 de agosto de 2017 13:19:11 UTC-3, Serge Efremov escreveu:
>
> This is what I do. I have a Serializer-level validator that checks the
> validity of a number of fields. If they a missing or incorrect I want to
> display a specific error message. Which basically looks like this.
>
> {
> 'errors': {
> '__all__': ['missing_security_fields'],
> },
> 'errors:context': {
> '__all__': {
> 'missing_security_fields': ['pow_1', 'pow_2', 'ticket'],
> },
> },
> }
>
> This is how it looks in (simplified) code:
>
> class SecurityFieldsValidator(object):
> def __call__(self, value):
> missing_fields = self.get_missing_fields(value)
> if missing_fields:
> errors = {
> '__all__': ['missing_security_fields'],
> }
> context = {
> '__all__': {
> 'missing_security_fields': missing_fields,
> },
> }
> raise ValidationError({'errors': errors, 'errors:context':
> context})
>
>
> But at some point in a call stack this structure stumbles upon
> as_serializer_error() function (get_validation_error_detail() in older
> versions) which wraps every item inside my dictionary in a list. What I
> would like to do is to override this function so that it doesn't do it (at
> least not for this specific format). But since it is not a method of
> Serializer class (BTW why?) and there seems to be no setting that could
> override this function, I don't see how I could change its behavior. One
> workaround I see is when this function is done with its job, walk over my
> dict and unwrap every item from its list, which looks like a complete waste
> of CPU. Another option is to override run_validation() method of my
> serializer which also doesn't seem nice because other than this problem,
> I'm completely OK with how it works and I don't want to copy its code into
> my project just to change a call of one function.
>
> Did anyone try to implement their own error format and how one could
> circumvent this rather annoying and seemingly hardcoded behavior?
>
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