Add a validation mixin for DRF Serializers (can elaborate on this)

[simkimsia]

Hi there, can you elaborate more on this future plan?

Add a validation mixin for DRF Serializers

By the way, this is a great plugin. Thanks. Adding it to my project now.

UPDATE:

I now realize what you mean and I need this. Is there a workaround for this?

My workaround is:

models.py

from partial_index import PQ, PartialIndex, ValidatePartialUniqueMixin
from versions.models import Versionable

class VersionedWBSElement(ValidatePartialUniqueMixin, Versionable):
    # wbs number is unique regardless
    wbs_number = models.CharField(max_length=100)
    wbs_description = models.TextField()

    class Meta:
        indexes = [
            PartialIndex(fields=['wbs_number'], unique=True, where=PQ(version_end_date__isnull=True))
        ]

serializers.py

from django.core.exceptions import ValidationError
from rest_framework import serializers
from dynamic_rest.serializers import DynamicModelSerializer

class VersionedWBSElementSerializer(DynamicModelSerializer):
    wbs_number = serializers.CharField()

    def validate_wbs_number(self, wbs_number):
        try:
            VersionedWBSElement(wbs_number=wbs_number).validate_unique()
       ## I added try-except in order to overwrite the error message
        except ValidationError as e:
            raise serializers.ValidationError("This WBS number already exists.")
        return wbs_number