Again, my question not only about the PATCH method (there is no problems
with it).
My question is about the partial model update (or, SQL statement, generated
by PATCH method)
Example:
model:
class TestModel(models.Model):
field_a = models.CharField()
field_b = models.CharField()
field_c = models.CharField()
serializer:
class TestModelSerializer(serializers.ModelSerializer):
class Meta:
model = TestModel
view:
class ModelDetail(generics.RetrieveUpdateAPIView):
queryset = TestModel.objects.all()
serializer_class = TestModelSerializer
PATCH request:
{
"field_a": "Test value"
}
*The SQL, generated:*
SELECT ... FROM `testmodel_table` ... WHERE ...;
UPDATE `testmodel_table` SET `field_a` = 'Test value', `field_b` =
'some_selected_value', `field_c` = 'some_selected_value' WHERE...;
*But, NOT:*
UPDATE `testmodel_table` SET `field_a` = 'Test value' WHERE...;
Even with PATCH request, all columns in DB were updated.
On Friday, February 1, 2019 at 9:30:17 PM UTC+2, [email protected] wrote:
>
> Hi, all.
>
> In DRF, it is possible to update only DB fields, specified in "PATCH"
> request?
>
>
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