+
−from django.db import models
+
−from django.contrib.contenttypes.models import ContentType
+
−from django.contrib.auth.models import User
+
−from django.contrib.admin.util import quote
+
−from django.utils.translation import ugettext_lazy as _
+
−from django.utils.encoding import smart_unicode
+
−from django.utils.safestring import mark_safe
+
−
+
−ADDITION = 1
+
−CHANGE = 2
+
−DELETION = 3
+
−
+
−class LogEntryManager(models.Manager):
+
−    def log_action(self, user_id, content_type_id, object_id, object_repr, action_flag, change_message=''):
+
−        e = self.model(None, None, user_id, content_type_id, smart_unicode(object_id), object_repr[:200], action_flag, change_message)
+
−        e.save()
+
−
+
−class LogEntry(models.Model):
+
−    action_time = models.DateTimeField(_('action time'), auto_now=True)
+
−    user = models.ForeignKey(User)
+
−    content_type = models.ForeignKey(ContentType, blank=True, null=True)
+
−    object_id = models.TextField(_('object id'), blank=True, null=True)
+
−    object_repr = models.CharField(_('object repr'), max_length=200)
+
−    action_flag = models.PositiveSmallIntegerField(_('action flag'))
+
−    change_message = models.TextField(_('change message'), blank=True)
+
−    objects = LogEntryManager()
+
−    class Meta:
+
−        verbose_name = _('log entry')
+
−        verbose_name_plural = _('log entries')
+
−        db_table = 'django_admin_log'
+
−        ordering = ('-action_time',)
+
−
+
−    def __repr__(self):
+
−        return smart_unicode(self.action_time)
+
−
+
−    def is_addition(self):
+
−        return self.action_flag == ADDITION
+
−
+
−    def is_change(self):
+
−        return self.action_flag == CHANGE
+
−
+
−    def is_deletion(self):
+
−        return self.action_flag == DELETION
+
−
+
−    def get_edited_object(self):
+
−        "Returns the edited object represented by this log entry"
+
−        return self.content_type.get_object_for_this_type(pk=self.object_id)
+
−
+
−    def get_admin_url(self):
+
−        """
+
−        Returns the admin URL to edit the object represented by this log entry.
+
−        This is relative to the Django admin index page.
+
−        """
+
−        return mark_safe(u"%s/%s/%s/" % (self.content_type.app_label, self.content_type.model, quote(self.object_id)))