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Python Django Basics Final Details Add a field to Article to reference the Writer

Sahar Nasiri
Sahar Nasiri
7,454 Points
Posted by Sahar Nasiri
Sahar Nasiri
7,454 Points

"Writer"

If the Writer is built after the Article how is this using "Writer" instead of Writer works? I mean that where this "Writer" changes to an instance of a Writer class?

articles/models.py 
from django.db import models


class Article(models.Model):
    headline = models.CharField(max_length=255)
    publish_date = models.DateTimeField()
    content = models.TextField()
    writer = models.ForeignKey("writer")

    def __str__(self):
        return self.headline


class Writer(models.Model):
    name = models.CharField(max_length=255)
    email = models.EmailField()
    bio = models.TextField()
Ryan Oakes
Ryan Oakes
9,787 Points
Ryan Oakes
Ryan Oakes
9,787 Points

You'll notice that "writer" - which should really be "Writer", by the way - has quotes around it.

The quotes signify that it is referring to a model that hasn't been substantiated yet. This allows you to reference models that don't exist yet.

Feel free to read the docs for more info: https://docs.djangoproject.com/en/1.10/ref/models/fields/