Add page that displays event logs

src/pretix/base/models/log.py

@@ -1,6 +1,9 @@
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
+from django.urls import reverse
+from django.utils.functional import cached_property
+from django.utils.translation import ugettext_lazy as _
 
 
 class LogEntry(models.Model):
@@ -32,7 +35,7 @@ class LogEntry(models.Model):
     data = models.TextField(default='{}')
 
     class Meta:
-        ordering = ('-datetime', )
+        ordering = ('-datetime',)
 
     def display(self):
         from ..signals import logentry_display
@@ -41,3 +44,83 @@ class LogEntry(models.Model):
             if response:
                 return response
         return self.action_type
+
+    @cached_property
+    def display_object(self):
+        from . import Order, Voucher, Quota, Item, ItemCategory, Question, Event
+
+        if self.content_type.model_class() is Event:
+            return ''
+
+        co = self.content_object
+        a_map = None
+        a_text = None
+
+        if isinstance(co, Order):
+            a_text = _('Order {val}')
+            a_map = {
+                'href': reverse('control:event.order', kwargs={
+                    'event': self.event.slug,
+                    'organizer': self.event.organizer.slug,
+                    'code': co.code
+                }),
+                'val': co.code,
+            }
+        elif isinstance(co, Voucher):
+            a_text = _('Voucher {val}…')
+            a_map = {
+                'href': reverse('control:event.voucher', kwargs={
+                    'event': self.event.slug,
+                    'organizer': self.event.organizer.slug,
+                    'voucher': co.id
+                }),
+                'val': co.code[:6],
+            }
+        elif isinstance(co, Item):
+            a_text = _('Product {val}')
+            a_map = {
+                'href': reverse('control:event.item', kwargs={
+                    'event': self.event.slug,
+                    'organizer': self.event.organizer.slug,
+                    'item': co.id
+                }),
+                'val': co.name,
+            }
+        elif isinstance(co, Quota):
+            a_text = _('Quota {val}')
+            a_map = {
+                'href': reverse('control:event.items.quotas.show', kwargs={
+                    'event': self.event.slug,
+                    'organizer': self.event.organizer.slug,
+                    'quota': co.id
+                }),
+                'val': co.name,
+            }
+        elif isinstance(co, ItemCategory):
+            a_text = _('Category {val}')
+            a_map = {
+                'href': reverse('control:event.items.categories.show', kwargs={
+                    'event': self.event.slug,
+                    'organizer': self.event.organizer.slug,
+                    'category': co.id
+                }),
+                'val': co.name,
+            }
+        elif isinstance(co, Question):
+            a_text = _('Question {val}')
+            a_map = {
+                'href': reverse('control:event.items.questions.show', kwargs={
+                    'event': self.event.slug,
+                    'organizer': self.event.organizer.slug,
+                    'question': co.id
+                }),
+                'val': co.question,
+            }
+
+        if a_text and a_map:
+            a_map['val'] = '<a href="{href}">{val}</a>'.format_map(a_map)
+            return a_text.format_map(a_map)
+        elif a_text:
+            return a_text
+        else:
+            return ''