How to create a subcategory in a category using generics.CreateAPIView? - django-rest-framework

Question

I am trying to create a subcategory under my category. This is my views.py
class CreateSubCategoryViews(generics.CreateAPIView):
queryset = SubCategory.objects.all()
serializer_class = SubCategorySerializer
lookup_field = 'slug'
My urls.py
path('category/<slug:slug>/create/', views.CreateSubCategoryViews.as_view(), name='create-subcategory-views'),
My models.py
class SubCategory(models.Model):
name = models.CharField(max_length=20)
slug = models.SlugField(null=True, blank=True)
category = models.ForeignKey(Category, on_delete=models.CASCADE)
class Meta:
verbose_name_plural = 'SubCategories'
def __str__(self):
return self.name

Answer 1

If You are Dealing with hierarchical data then You can use django-mptt
in Models.py
from mptt.models import MPTTModel
from mptt.managers import TreeManager
class category(MPTTModel):
name = models.CharField(max_length=255, default="", blank=True)
slug = models.SlugField(null=True, blank=True)
parent = models.ForeignKey('self', null=True, blank=True, on_delete=models.SET_NULL, related_name='child')
objects = TreeManager()
class MPTTMeta:
level_attr = 'mptt_level'
order_insertion_by=['name']
in Views.py
class CategoryView(viewsets.ModelViewSet):
queryset = category.objects.all()
serializer_class = categoryTreeSerializer
in Serializers.py
from rest_framework_recursive.fields import RecursiveField
class CategoryTreeSerializer(serializers.ModelSerializer):
child = RecursiveField(many=True, read_only=True)
class Meta:
model = Location
fields = ('id', 'name','slug','parent', 'child',)