How to set file visibility to other users?-CodePudding

Hi im trying to make user upload a file, and then choose to which users this file will be visible .How do i set this one to many relation.This is my models.py file:

from django.db import models

from django.contrib.auth.models import User

class UserFile(models.Model):
    owner = models.ForeignKey(User, on_delete=models.CASCADE)
    file = models.FileField(upload_to='media/')
    uploaded = models.DateTimeField(auto_now_add=True)
    modified = models.DateTimeField(auto_now=True)
    trash = models.BooleanField(default=False)
    favourite = models.BooleanField(default=False)

    visibilty = models.ManyToManyField(User)

I tried this but it gives me this error message:

managefiles.UserFile.owner: (fields.E304) Reverse accessor 'User.userfile_set' for 'managefiles.UserFile.owner' clashes with reverse accessor for 'managefiles.UserFile.visibility'.
        HINT: Add or change a related_name argument to the definition for 'managefiles.UserFile.owner' or 'managefiles.UserFile.visibility'.
managefiles.UserFile.visibility: (fields.E304) Reverse accessor 'User.userfile_set' for 'managefiles.UserFile.visibility' clashes with reverse accessor for 'managefiles.UserFile.owner'.
        HINT: Add or change a related_name argument to the definition for 'managefiles.UserFile.visibility' or 'managefiles.UserFile.owner'.

CodePudding user response：

You are getting the error because you have two fields, owner and visibility, referencing the same User table. This can be fixed using related_name.

class UserFile(models.Model):
    owner = models.ForeignKey(Users, related_name='creator', on_delete=models.CASCADE)
    visibility = models.ManyToManyField(Users, related_name='permitted', on_delete=models.CASCADE)
    ...