created reaction model in announcements app

announcements/models.py

@@ -4,4 +4,17 @@ from django.db import models
 class Announcement(models.Model):
   announcement_title = models.CharField(max_length=200)
   announcement_body = models.TextField()
-  pub_date = models.DateField(auto_now_add=True)
\ No newline at end of file
+  pub_date = models.DateField(auto_now_add=True)
+
+class Reaction(models.Model):
+  class ReactionNames(models.TextChoices):
+    LIKE = 'Like'
+    LOVE = 'Love'
+    ANGRY = 'Angry'
+
+  reaction_name = models.CharField(max_length=5, choices=ReactionNames.choices)
+  tally = models.IntegerField(default=0)
+  announcement = models.ForeignKey(Announcement, on_delete=models.CASCADE, related_name='reactions')
+
+  def __str__(self):
+    return '{} {} reactions'.format(self.announcement.announcement_title, self.reaction_name)
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