CODEWITHSUNDEEP
django
HazarV17
HazarV17

Reputation: 59

How to create model with relationship one-to-many in Django?

I need create relationship one-to-many. One Group can have many members.

Did I do it right?

Model:

class Group(models.Model):
    id = models.BigAutoField(primary_key=True)
    groupName: models.CharField(max_length=100)
    description: models.CharField(max_length=255)
    createdAt = models.DateTimeField(auto_now_add=True)
    updatedAt = models.DateTimeField(auto_now=True)
    members: models.ForeignKey(User, n_delete=models.CASCADE)

Upvotes: 1

Views: 184

Answers (1)

Arjun Shahi
Arjun Shahi

Reputation: 7330

ForeignKey represents ManyToOne relationship so here according to your model One member will have many groups.

If you want one group will have many members then the models should be like this.


class Group(models.Model):
    id = models.BigAutoField(primary_key=True)
    groupName: models.CharField(max_length=100)
    description: models.CharField(max_length=255)
    createdAt = models.DateTimeField(auto_now_add=True)
    updatedAt = models.DateTimeField(auto_now=True)

class Member(models.Model):
   group = models.ForeignKey(Group)
   ......

Upvotes: 2

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