CODEWITHSUNDEEP
pythondjango
PaulSanders87
PaulSanders87

Reputation: 11

Access Users Model foreign Key

I am writing my first Django App where I am wanting to utilise the built in user model to map to my own custom model.

My application is going to manage Users IT devices. To do this, I have a table called devices. I am wanting a foreign key per device that maps to the user model (so one user can have multiple devices).

My question is, how do I add that mapping in my model. Some thing?

Class Devices(model.Model):
 DeviceID = model.CharField(MaxLength=10)
 Owner = model.ForeignKey(<User??>)

Thanks in advance,

Paul

Upvotes: 1

Views: 45

Answers (2)

Frank Fang
Frank Fang

Reputation: 149

To access Django's in-built User model, you need to import this:

 from django.contrib.auth.models import User

Assuming you have imported models:

from django.db import models

NOTE: it's models instead of model. This typo also exists in Liarez's answer.

Upvotes: 0

AlvaroAV
AlvaroAV

Reputation: 10563

class Device(model.Model):
    deviceID = model.CharField(MaxLength=10)
    owner = model.ForeignKey(User)

  • You should check the standarts for coding styles Django Coding Style Standarization

    • Use singular words for classes
    • Begin class name with capital letter
    • Begin class field with non capital letter
    • etc...

  • You should also check oficial documentation Django: Foreign Key

After a model is related to another via ForeignKey you can do following actions, If you have a Device object in a variable called dev:

dev.owner  # This return an User object, so you can access all user fields
dev.owner.username
dev.owner.email

Upvotes: 2

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