Similar to the issue found here (and maybe here)
I had the problem of having a model like so:
class Item(models.Model):
name = models.CharField(max_length=128)
category = models.ForeignKey(Category)
class Category(models.Model):
name = models.CharField(max_lenght=64)
and wanting to serialize a list grouped by category like so:
[{'name': 'category 1', 'items: [ {'name': 'item1}, {'name':'item2'} ]},
{'name': 'category 2', 'items: [ {'name': 'item3}, {'name':'item4'} ]}]
The solution I found looks like this:
class ItemSerializer(serializers.ModelSerializer):
class Meta:
model = Item
fields = ['name']
class ItemsSerializer(serializers.ModelSerializer):
items = serializers.SerializerMethodField()
class Meta:
model = Category
fields = ['name', 'items']
def get_items(self, obj):
items = Items.objects.filter(category=obj) # Or do some other filtering here
return ItemSerializer(instance=items, many=True).data
Very basic. I couldn't find this solution anywhere else though
