implement simple backend search for items and tickets

core/tickets/api_v2.py

@@ -15,7 +15,7 @@ from mail.models import Email
 from mail.protocol import send_smtp, make_reply, collect_references
 from notify_sessions.models import SystemEvent
 from tickets.models import IssueThread, Comment, STATE_CHOICES, ShippingVoucher, ItemRelation
-from tickets.serializers import IssueSerializer, CommentSerializer, ShippingVoucherSerializer
+from tickets.serializers import IssueSerializer, CommentSerializer, ShippingVoucherSerializer, SearchResultSerializer
 from tickets.shared_serializers import RelationSerializer
 
 
@@ -136,6 +136,30 @@ def add_comment(request, pk):
     return Response(CommentSerializer(comment).data, status=status.HTTP_201_CREATED)
 
 
+def filter_issues(issues, query):
+    query_tokens = query.split(' ')
+    for issue in issues:
+        value = 0
+        for token in query_tokens:
+            if token in issue.description:
+                value += 1
+        if value > 0:
+            yield {'search_score': value, 'issue': issue}
+
+
+@api_view(['GET'])
+@permission_classes([])
+# @permission_classes([IsAuthenticated])
+# @permission_required('view_item', raise_exception=True)
+def search_issues(request, event_slug, query):
+    try:
+        event = Event.objects.get(slug=event_slug)
+        items = filter_issues(IssueThread.objects.filter(event=event), b64decode(query).decode('utf-8'))
+        return Response(SearchResultSerializer(items, many=True).data)
+    except Event.DoesNotExist:
+        return Response(status=404)
+
+
 router = routers.SimpleRouter()
 router.register(r'tickets', IssueViewSet, basename='issues')
 router.register(r'matches', RelationViewSet, basename='matches')
@@ -146,4 +170,6 @@ urlpatterns = ([
                    re_path(r'^tickets/(?P<pk>\d+)/reply/$', reply, name='reply'),
                    re_path(r'^tickets/(?P<pk>\d+)/comment/$', add_comment, name='add_comment'),
                    re_path(r'^(?P<event_slug>[\w-]+)/tickets/manual/$', manual_ticket, name='manual_ticket'),
+                   re_path(r'^(?P<event_slug>[\w-]+)/tickets/(?P<query>[-A-Za-z0-9+/]*={0,3})/$', search_issues,
+                            name='search_issues'),
                ] + router.urls)