Stealing the logger from the old admin.

djadmin2/models.py

@@ -2,13 +2,94 @@
 """ Boilerplate for now, will serve a purpose soon! """
 from __future__ import division, absolute_import, unicode_literals
 
+from django.conf import settings
+from django.contrib.contenttypes.models import ContentType
+from django.contrib.admin.util import quote
+from django.db import models
 from django.db.models import signals
+from django.utils.translation import ugettext, ugettext_lazy as _
+from django.utils.encoding import smart_text
+from django.utils.encoding import python_2_unicode_compatible
 
 from . import permissions
 
 
+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_text(object_id), object_repr[:200], action_flag,
+                       change_message)
+        e.save()
+
+
+@python_2_unicode_compatible
+class LogEntry(models.Model):
+    ADDITION = 1
+    CHANGE = 2
+    DELETION = 3
+
+    action_time = models.DateTimeField(_('action time'), auto_now=True)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL)
+    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')
+        ordering = ('-action_time',)
+
+    def __repr__(self):
+        return smart_text(self.action_time)
+
+    def __str__(self):
+        if self.action_flag == self.ADDITION:
+            return ugettext('Added "%(object)s".') % {
+                'object': self.object_repr}
+        elif self.action_flag == self.CHANGE:
+            return ugettext('Changed "%(object)s" - %(changes)s') % {
+                'object': self.object_repr,
+                'changes': self.change_message,
+            }
+        elif self.action_flag == self.DELETION:
+            return ugettext('Deleted "%(object)s."') % {
+                'object': self.object_repr}
+
+        return ugettext('LogEntry Object')
+
+    def is_addition(self):
+        return self.action_flag == self.ADDITION
+
+    def is_change(self):
+        return self.action_flag == self.CHANGE
+
+    def is_deletion(self):
+        return self.action_flag == self.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.
+        """
+        if self.content_type and self.object_id:
+            return '{0.app_label}/{0.model}/{1}'.format(
+                self.content_type,
+                quote(self.object_id)
+            )
+        return None
+
 # setup signal handlers here, since ``models.py`` will be imported by django
 # for sure if ``djadmin2`` is listed in the ``INSTALLED_APPS``.
 
-signals.post_syncdb.connect(permissions.create_view_permissions,
+signals.post_syncdb.connect(
+    permissions.create_view_permissions,
     dispatch_uid="django-admin2.djadmin2.permissions.create_view_permissions")