Add edit button to constraint violation view

This includes returning the edit url as part of the (internal) API response

AKModel/models.py

@@ -2,6 +2,7 @@ import itertools
 from datetime import timedelta
 
 from django.db import models
+from django.urls import reverse_lazy
 from django.utils import timezone
 from django.utils.datetime_safe import datetime
 from django.utils.text import slugify
@@ -539,6 +540,10 @@ class ConstraintViolation(models.Model):
     def details(self):
         return self.get_details()
 
+    @property
+    def edit_url(self):
+        return reverse_lazy('admin:AKModel_constraintviolation_change', kwargs={'object_id': self.pk})
+
     @property
     def level_display(self):
         return self.get_level_display()

AKScheduling/api.py

@@ -114,7 +114,7 @@ class EventsViewSet(EventSlugMixin, viewsets.ModelViewSet):
 class ConstraintViolationSerializer(serializers.ModelSerializer):
     class Meta:
         model = ConstraintViolation
-        fields = ['pk', 'type_display', 'aks', 'ak_slots', 'ak_owner', 'room', 'requirement', 'category', 'comment', 'timestamp_display', 'manually_resolved', 'level_display', 'details']
+        fields = ['pk', 'type_display', 'aks', 'ak_slots', 'ak_owner', 'room', 'requirement', 'category', 'comment', 'timestamp_display', 'manually_resolved', 'level_display', 'details', 'edit_url']
 
 
 class ConstraintViolationsViewSet(EventSlugMixin, viewsets.ModelViewSet):

AKScheduling/templates/admin/AKScheduling/constraint_violations.html

@@ -63,7 +63,7 @@
 
                                // Update violations table
                                for(let i=0;i<response.length;i++) {
-                                   table_html += "<tr><td>" + response[i].level_display + "</td><td>" + response[i].type_display + "</td><td>" + response[i].details + "</td><td>" + response[i].timestamp_display + "</td><td></td></tr>";
+                                   table_html += "<tr><td>" + response[i].level_display + "</td><td>" + response[i].type_display + "</td><td>" + response[i].details + "</td><td class='nowrap'>" + response[i].timestamp_display + "</td><td><a href='" + response[i].edit_url + "'><i class='btn btn-primary fa fa-pen'></i></a></td></tr>";
                                }
                            }
                            else {