Django bulk update with string replace

Question

I am trying to update and modify a string field Django\'s ORM. The equivalent SQL to do this is:

UPDATE example_table SET string_field = REPLACE(string_fiel         


        

Answer 1

Tested with django 1.9

from django.db.models import F, Func, Value

ExampleModel.objects.filter().update(
    string_field=Func(
        F('string_field'),
        Value('old text'), Value('new text'),
        function='replace',
    )
)

UPDATE Django 2.1 https://docs.djangoproject.com/en/2.2/ref/models/database-functions/#replace

from django.db.models import Value
from django.db.models.functions import Replace

ExampleModel.objects.filter().update(
    string_field=Replace('name', Value('old text'), Value('new text'))
)