Efficiently retrieving Django model relations through JSON

Struggling to properly title this question, but please bear with me as I explain my dilemma.

I am in the process of creating an app for my hockey team that involves a django backend and a mobile app using JSON communication (via django-rest-framework). One issue I'm facing is:

After creating a user with Token Authentication, how do I determine if they are also a player or manager when they log in again? The authentication token received during login does not provide any information about the user's identity. Without the user's Id, it becomes tricky to associate them with any players or managers. One approach I considered is fetching all players and searching for one with the same email address as the current user, but that doesn't seem very efficient.

I hope my explanation makes sense!

Thank you

djangojsondjango-rest-framework

Answer №1

This doesn't seem to be directly related to JSON.

It seems like the token is linked to a user ID. Even though I'm not familiar with django-rest-framework, the TokenAuthentication documentation explains that upon logging in with the token, you will receive a standard auth.User instance in request.user, just like a regular web-based login process.

Your second question may be unnecessary considering this information, but in any case, you can easily query by email address without needing to iterate through each one:

Manager.objects.get(email=my_email_address)

This follows the standard Django querying method - if you're unfamiliar with it, consider trying out the Django tutorial.

Moreover, since you already have a user, you can execute a faster foreign key lookup:

Manager.objects.get(user=request.user)

or even

request.user.manager

(assuming there's a one-to-one relationship between User and Manager - sharing your models would have been beneficial).

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