Viewing file:  func_noerror_manytomanyfield.py (1.72 KB) -rw-r--r--
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"""
Checks that Pylint does not complain about various
methods on many-to-many relationships
"""
from django.contrib.auth.models import AbstractUser, Permission
# pylint: disable=missing-docstring
from django.db import models
class Book(models.Model):
name = models.CharField(max_length=100)
good = models.BooleanField(default=False)
class Author(models.Model):
name = models.CharField(max_length=100)
wrote = models.ManyToManyField(Book, verbose_name="Book", related_name="books")
def get_good_books(self):
return self.wrote.filter(good=True)
def is_author_of(self, book):
return book in list(self.wrote.all())
def wrote_how_many(self):
return self.wrote.count()
# Custom permissions for CustomUser
USER_PERMS = ["change_customuser", "add_customuser"]
class CustomUser(AbstractUser): # pylint: disable=model-no-explicit-unicode
class Meta:
verbose_name = "CustomUser"
verbose_name_plural = "CustomUsers"
app_label = "users"
def grant_permissions(self):
"""Example adding permissions to User"""
self.user_permissions.clear()
for perm in USER_PERMS:
perm = Permission.objects.get(codename=perm)
self.user_permissions.add(perm)
return self.user_permissions
def add_permission(self, permission):
self.user_permissions.add(permission)
def remove_permission(self, permission):
self.user_permissions.remove(permission)
def set_permissions(self, permissions):
self.user_permissions.set(permissions)
def save(self, *args, **kwargs):
"""Saving while granting new permissions"""
self.is_staff = True
super().save()
self.grant_permissions()
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