Answers for "how to connecct id's in the models of jdango"

create models in django

from django.db import models
# Create your models here.

class Contact(models.Model):
    name = models.CharField(max_length=50)
    email = models.CharField(max_length=50)
    contact = models.CharField(max_length=50)
    content = models.TextField()
    def __str__(self):
        return self.name + ' ' + self.email

django id

The ID in django is a "unique identifier" for each models instances.
You do not need to explicitly add a ID field to your own models as 
the ID attribute is automatically generated for you behind the scences
by django for each new model and any newly created instances of that 
model afterwards.

how to connecct id's in the models of jdango

from django.db import models

class Musician(models.Model):
    first_name = models.CharField(max_length=50)
    last_name = models.CharField(max_length=50)
    instrument = models.CharField(max_length=100)

class Album(models.Model):
    artist = models.ForeignKey(Musician, on_delete=models.CASCADE)
    name = models.CharField(max_length=100)
    release_date = models.DateField()
    num_stars = models.IntegerField()