created admin panel and populated models of app widget_calendar

widget_nicsbabes/widget_calendar/admin.py

 from django.contrib import admin
+from .models import Location, Event
 
-# Register your models here.
+
+class LocationAdmin(admin.ModelAdmin):
+    model = Location
+    list_display = ("venue", "mode")
+    search_fields = ("venue",)
+    list_filter = ("mode",)
+
+
+class EventAdmin(admin.ModelAdmin):
+    model = Event
+    list_display = ("course", "activity", "target_datetime")
+    search_fields = ("activity", "course")
+    list_filter = ("course",)
+    
+
+admin.site.register(Location, LocationAdmin)
+admin.site.register(Event, EventAdmin)

widget_nicsbabes/widget_calendar/models.py

@@ -3,9 +3,9 @@ from assignments.models import Course
 
 
 class Location(models.Model):
-    ONSITE = 'onsite'
-    ONLINE = 'online'
-    HYBRID = 'hybrid'
+    ONSITE = 'ONSITE'
+    ONLINE = 'ONLINE'
+    HYBRID = 'HYBRID'
     MODE_CHOICES = [
         (ONSITE, 'Onsite'),
         (ONLINE, 'Online'),
@@ -21,8 +21,8 @@ class Location(models.Model):
 
     def __str__(self):
         return '{} ({})'.format(
-            self.mode, 
-            self.title
+            self.venue, 
+            self.mode
         )