django unique_together

Step 1: Import necessary modules

from django.db import models

Step 2: Define your model with unique_together constraint

class YourModel(models.Model):
    field1 = models.CharField(max_length=100)
    field2 = models.CharField(max_length=100)

    class Meta:
        unique_together = ('field1', 'field2')

Step 3: Apply migrations

python manage.py makemigrations
python manage.py migrate

Explanation: - Step 1: Import the required modules, specifically the models module from django.db.

  • Step 2: Define your model (YourModel) with the desired fields (field1 and field2). In the Meta class of the model, set the unique_together attribute to a tuple containing the names of the fields that should have a unique constraint when combined.

  • Step 3: Apply migrations to update the database schema based on the changes made in the model. Use the makemigrations command to create migration files and the migrate command to apply those changes to the database.