Add contributors and tags fields to Note model

program/models.py

@@ -1138,6 +1138,7 @@ class TimeSlot(models.Model):
 
 class Note(models.Model):
     timeslot = models.OneToOneField(TimeSlot, on_delete=models.CASCADE, unique=True)
+    contributors = models.ManyToManyField(Host, related_name="contributions")
     title = models.CharField(max_length=128)
     slug = models.SlugField(max_length=32, unique=True)
     summary = models.TextField(blank=True)
@@ -1157,6 +1158,7 @@ class Note(models.Model):
     user = models.ForeignKey(
         User, editable=False, on_delete=models.CASCADE, related_name="users", default=1
     )
+    tags = models.TextField(blank=True, null=True)
 
     class Meta:
         ordering = ("timeslot",)