Created Reaction model and added author field in Announcement model

widget_group_25/announcementboard/admin.py

 from django.contrib import admin
-from .models import Announcement
+from .models import Announcement, Reaction
+
 
 class AnnouncementAdmin(admin.ModelAdmin):
     model = Announcement
-    list_display = ('announcement_title', 'announcement_body', 'pub_date')
+    list_display = ('announcement_title', 'announcement_body', 'pub_date', 'author')
+
+
+class ReactionAdmin(admin.ModelAdmin):
+    model = Reaction
+    list_display = ('announcement', 'reaction_name', 'tally')
 
 admin.site.register(Announcement, AnnouncementAdmin)
+admin.site.register(Reaction, ReactionAdmin)
\ No newline at end of file

widget_group_25/announcementboard/models.py

@@ -4,6 +4,38 @@ class Announcement(models.Model):
     announcement_title = models.CharField(max_length=150)
     announcement_body = models.TextField()
     pub_date = models.DateField(auto_now=True)
+    author = models.ForeignKey(
+        'homepage.WidgetUser',
+        on_delete=models.CASCADE,
+        related_name='announcements'
+    )
 
     def __str__(self):
         return '"{}" published {}'.format(self.announcement_title, self.pub_date)
+
+class Reaction(models.Model):
+    announcement = models.ForeignKey(
+        Announcement,
+        on_delete=models.CASCADE,
+        related_name='reactions'
+    )
+    REACTION_CHOICES = [
+        ('Like', 'Like'),
+        ('Love', 'Love'),
+        ('Angry', 'Angry')
+    ]
+    reaction_name = models.CharField(
+        max_length=5,
+        choices=REACTION_CHOICES,
+        default='Like'
+    )
+    tally = models.IntegerField(default=1, editable=False)
+
+    def save(self):
+        if self.reaction_name=='Like':
+            self.tally = self.announcement.reactions.filter(reaction_name='Like').count()+1
+        elif self.reaction_name=='Love':
+            self.tally = self.announcement.reactions.filter(reaction_name='Love').count()+1
+        elif self.reaction_name=='Angry':
+            self.tally = self.announcement.reactions.filter(reaction_name='Angry').count()+1
+        return super().save()
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