How to remove relation from django model with ManyToMany field?
How to remove relation from model with ManyToMany field?
I've got a model with ManyToManyField relation. I need to remove relation but not data from the following model:
class TxHomes(models.Model):
user = models.ManyToManyField(settings.AUTH_USER_MODEL)
home_id = models.PositiveIntegerField(primary_key=True, unique=True, null=False)
name = models.CharField(max_length=255, null=True)
geo_name = models.CharField(max_length=255, null=True)
payload = models.JSONField()
Django ORM got tables generated:
-- auto-generated definition
create table main_txhomes
(
home_id integer unsigned not null primary key,
name varchar(255),
geo_name varchar(255),
...
);
create table main_txhomes_user
(
id primary key autoincrement,
txhomes_id ...,
user_id ...
);
When I apply to do that with a following code
TxHomes.objects.filter(
home_id__in=TxHomes.objects.filter(user=USER_ID).values('home_id')
,user=USER_ID).delete()
i got entire data deleted from main_txhomes
I want to keep data in main_txhomes table, what i need is to delete relations from main_txhomes_user table. How to do that?
Solution is found:
User.objects.get(id=USER_ID).txhomes_set.clear()
This is how we remove all relation to txhomes table for the user