from django.db import models from django.db.models.signals import post_save from django.contrib.auth.models import User 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) def get_associated_packages(self): # TODO: delayed import to avoid circular reference from main.models import Package return Package.objects.filter(pkgbase=self.pkgbase).select_related( 'arch', 'repo') 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" % (name, 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") # vim: set ts=4 sw=4 et: