Creating an array field in the Django Database Model

Question

Hey guys I'm creating a primitive social media app and I'm trying to create an array in my table that has a list of usernames that the user will be following so that their feed shows only posts from users that they are following.

How can I do this? Right now I only have integers and strings but what if I need an array or a data type that can store multiple values?

Here is my code. I want "follows" to be the array (or multiple value) field.

class User(AbstractUser):
    pass
    follows = models.CharField(max_length=64, default=0)
    followers = models.IntegerField(default=0)

does anyone have a better solution? I'm not sure how to create all these tables and have them work together. Sounds too complex. I'd rather just have a list or an array full of values. How do I do that? — card51short
– card51short, Commented Nov 23, 2020 at 19:32

D Malan · Accepted Answer · 2020-11-23 13:50:30Z

1

You can use a many-to-many relationship or an intermediary model where you can add created information:

models.py:

class Follow(models.Model):
    follower = models.ForeignKey(User, related_name = 'follow_from_set', on_delete = models.CASCADE)
    following = models.ForeignKey(User, related_name = 'follow_to_set', on_delete = models.CASCADE)
    created = models.DateTimeField(auto_now_add=True)

edited Nov 23, 2020 at 13:50

D Malan

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answered Nov 23, 2020 at 8:14

Eric Martin

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4 Comments

card51short Over a year ago

Thanks for your help but I'm not sure how this works. How does this add many different fields? I would rather just have an array than multiple tables. I don't get how I would utilize the table this way. can you tell me more?

card51short Over a year ago

for instance, I need to be able to print out all the posts from users that a user is following. I don't think this table helps me do that.

Eric Martin Over a year ago

Indeed, my answer is really short. I'll send the code in the next days.

Eric Martin Over a year ago

In a hurry ? stackoverflow.com/questions/64995388/… ? so you can check the code from Antonio Melé here : github.com/PacktPublishing/Django-3-by-Example/tree/master/… That's a basic social media with your features.

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