Superevents

Adding superevents to GraceDB, including the necessary models, utility functions, and API resources. This has also resulted in changes to the overall configuration and some parts of the events model.

Many models in the events app, like Labels, Tags, EventLogs, etc. were needed in a similar form for superevents. We were able to completely reuse the existing Label and Tag models for superevents. In other cases, we had to abstract the main functionality of the class into an abstract base class and then implement separate models for events and superevents, due to foreign key requirements. This should leave the current functionality of the events models unchanged.

Some portions of the events API have been modified because of one of the following reasons:

• It didn't make sense and was unnecessarily difficult to duplicate for superevents
• It was inefficient or bad

These changes are documented here: https://bugs.ligo.org/redmine/issues/6133

gracedb/events/api/views.py

 
 from django.http import HttpResponse, HttpResponseNotFound
 from django.http import HttpResponseForbidden, HttpResponseServerError
+from django.http.request import QueryDict
 from django.urls import reverse as django_reverse
 
 from django.conf import settings
@@ -776,12 +777,15 @@ class EventLogList(APIView):
     @event_and_auth_required
     def post(self, request, event):
         message = request.data.get('message')
-        tagnames = request.data.get('tagname', None)
-        # Convert tagnames from comma separated list.
-        if tagnames:
-            tagnames = tagnames.split(',')
+        # Handle requests encoded as multipart/form or regular JSONs
+        if isinstance(request.data, QueryDict):
+            # request.data is a MultiValueDict
+            tagnames = request.data.getlist('tagname', [])
+            displayNames = request.data.getlist('displayName', [])
         else:
-            tagnames = []
+            # request.data is a normal dict
+            tagnames = request.data.get('tagname', [])
+            displayNames = request.data.get('displayName', [])
 
         try:
             uploadedFile = request.data['upload'] 
@@ -827,12 +831,22 @@ class EventLogList(APIView):
             if settings.EXTERNAL_ACCESS_TAGNAME not in tagnames:
                 tagnames.append(settings.EXTERNAL_ACCESS_TAGNAME)
 
+        # Check how to handle displayNames
+        if len(displayNames) == len(tagnames):
+            use_display_names = True
+        else:
+            use_display_names = False
+            request.data['displayName'] = ''
+
         tw_dict = {}
         if tagnames and len(tagnames):
-            for tagname in tagnames:
+            for i,tagname in enumerate(tagnames):
                 n = logentry.N
-                # Yeah... this is really bad and doesn't work as expected.
-                # Creates any new tags all with the same displayName.
+
+                # Modify request data to include display name for this tag
+                if use_display_names:
+                    request.data['displayName'] = displayNames[i]
+
                 tmp = EventLogTagDetail()
                 retval = tmp.put(request, event.graceid(), n, tagname) 
                 # XXX This seems like a bizarre way of getting an error message out.
@@ -847,7 +861,6 @@ class EventLogList(APIView):
         if 'tagWarning' in tw_dict.keys():
             response['tagWarning'] = tw_dict['tagWarning']
 
-
         # Issue alert.
         description = "LOG: "
         fname = ""
@@ -1221,11 +1234,10 @@ class EventLogTagDetail(APIView):
                     return HttpResponseForbidden(msg)            
 
             # Look for the tag.  If it doesn't already exist, create it.
-            try:
-                tag = Tag.objects.filter(name=tagname)[0]
-            except:
-                displayName = request.data.get('displayName')
-                tag = Tag(name=tagname, displayName=displayName)
+            tag, created = Tag.objects.get_or_create(name=tagname)
+            displayName = request.data.get('displayName')
+            if created:
+                tag.displayName = displayName
                 tag.save()
 
             # Now add the log message to this tag.