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from django.db import models
from django.db.models.signals import pre_save, post_save
from django.contrib.auth.models import User
from main.utils import set_created_field
class PackageRelation(models.Model):
'''
Represents maintainership (or interest) in a package by a given developer.
It is not a true foreign key to packages as we want to key off
pkgbase/pkgname instead, as well as preserve this information across
package deletes, adds, and in all repositories.
'''
MAINTAINER = 1
WATCHER = 2
TYPE_CHOICES = (
(MAINTAINER, 'Maintainer'),
(WATCHER, 'Watcher'),
)
pkgbase = models.CharField(max_length=255)
user = models.ForeignKey(User, related_name="package_relations")
type = models.PositiveIntegerField(choices=TYPE_CHOICES, default=MAINTAINER)
created = models.DateTimeField(editable=False)
def get_associated_packages(self):
# TODO: delayed import to avoid circular reference
from main.models import Package
return Package.objects.normal().filter(pkgbase=self.pkgbase)
def repositories(self):
packages = self.get_associated_packages()
return sorted(set([p.repo for p in packages]))
def __unicode__(self):
return "%s: %s (%s)" % (
self.pkgbase, self.user, self.get_type_display())
class Meta:
unique_together = (('pkgbase', 'user', 'type'),)
class PackageGroup(models.Model):
'''
Represents a group a package is in. There is no actual group entity,
only names that link to given packages.
'''
pkg = models.ForeignKey('main.Package', related_name='groups')
name = models.CharField(max_length=255)
def __unicode__(self):
return "%s: %s" % (self.name, self.pkg)
class License(models.Model):
pkg = models.ForeignKey('main.Package', related_name='licenses')
name = models.CharField(max_length=255)
def __unicode__(self):
return self.name
class Meta:
ordering = ['name']
class Conflict(models.Model):
pkg = models.ForeignKey('main.Package', related_name='conflicts')
name = models.CharField(max_length=255, db_index=True)
comparison = models.CharField(max_length=255, default='')
version = models.CharField(max_length=255, default='')
def __unicode__(self):
if self.version:
return u'%s%s%s' % (self.name, self.comparison, self.version)
return self.name
class Meta:
ordering = ['name']
class Provision(models.Model):
pkg = models.ForeignKey('main.Package', related_name='provides')
name = models.CharField(max_length=255, db_index=True)
# comparison must be '=' for provides
comparison = '='
version = models.CharField(max_length=255, default='')
def __unicode__(self):
if self.version:
return u'%s=%s' % (self.name, self.version)
return self.name
class Meta:
ordering = ['name']
class Replacement(models.Model):
pkg = models.ForeignKey('main.Package', related_name='replaces')
name = models.CharField(max_length=255, db_index=True)
comparison = models.CharField(max_length=255, default='')
version = models.CharField(max_length=255, default='')
def __unicode__(self):
if self.version:
return u'%s%s%s' % (self.name, self.comparison, self.version)
return self.name
class Meta:
ordering = ['name']
def remove_inactive_maintainers(sender, instance, created, **kwargs):
# instance is an auth.models.User; we want to remove any existing
# maintainer relations if the user is no longer active
if not instance.is_active:
maint_relations = PackageRelation.objects.filter(user=instance,
type=PackageRelation.MAINTAINER)
maint_relations.delete()
post_save.connect(remove_inactive_maintainers, sender=User,
dispatch_uid="packages.models")
pre_save.connect(set_created_field, sender=PackageRelation,
dispatch_uid="packages.models")
# vim: set ts=4 sw=4 et:
|
