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webvirtcloud/accounts/models.py
catborise afe80a9e78 refactor(accounts): UserInstance's uniqueness is a UniqueConstraint
Django documents unique_together as likely to be deprecated in favour of
Meta.constraints; the rule is the same (one row per user and VM).
2026-11-06 13:46:27 +03:00

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Python

from django.contrib.auth.models import User
from django.core.validators import MinValueValidator
from django.db import models
from django.utils.translation import gettext_lazy as _
from instances.models import Instance
from knox.models import AbstractAuthToken
class UserInstanceManager(models.Manager):
def get_queryset(self):
return super().get_queryset().select_related("instance", "user")
class UserInstance(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
instance = models.ForeignKey(Instance, on_delete=models.CASCADE)
is_change = models.BooleanField(default=False)
is_delete = models.BooleanField(default=False)
is_vnc = models.BooleanField(default=False)
objects = UserInstanceManager()
def __str__(self):
return _('Instance "%(inst)s" of user %(user)s') % {
"inst": self.instance,
"user": self.user,
}
class Meta:
constraints = [models.UniqueConstraint(fields=["user", "instance"], name="unique_user_instance")]
class UserSSHKey(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
keyname = models.CharField(_("key name"), max_length=25)
keypublic = models.TextField(_("public key"), max_length=16384)
def __str__(self):
return self.keyname
class UserAttributes(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
can_clone_instances = models.BooleanField(default=True)
must_change_password = models.BooleanField(default=False)
max_instances = models.IntegerField(
_("max instances"),
default=2,
help_text=_("-1: no limit; 0: none allowed"),
validators=[MinValueValidator(-1)],
)
max_cpus = models.IntegerField(
_("max CPUs"),
default=2,
help_text=_("-1: no limit; 0: none allowed"),
validators=[MinValueValidator(-1)],
)
max_memory = models.IntegerField(
_("max memory (MiB)"),
default=2048,
help_text=_("-1: no limit; 0: none allowed"),
validators=[MinValueValidator(-1)],
)
max_disk_size = models.IntegerField(
_("max disk size (GiB)"),
default=20,
help_text=_("-1: no limit; 0: none allowed"),
validators=[MinValueValidator(-1)],
)
def __str__(self):
return self.user.username
class PermissionSet(models.Model):
"""
Dummy model for holding set of permissions we need to be automatically added by Django
"""
class Meta:
default_permissions = ()
permissions = (("change_password", _("Can change password")),)
managed = False
class ApiToken(AbstractAuthToken):
"""A token for the REST API, kept as a digest (django-rest-knox); the
name says what uses it."""
LIMIT = 10 # per user, expired ones not counted
name = models.CharField(_("name"), max_length=64)
last_used = models.DateTimeField(_("last used"), null=True, blank=True)
class Meta:
ordering = ["-created"]