Added model, serializer and viewset for model News Reaction

app/content/migrations/0054_remove_news_reactions.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.0.8 on 2023-09-26 16:11
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('content', '0053_news_emojis_allowed_news_reactions'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='news',
+            name='reactions',
+        ),
+    ]

app/content/models/news.py

@@ -19,13 +19,6 @@ class News(BaseModel, OptionalImage, BasePermissionModel):
     )
     body = models.TextField()
     emojis_allowed = models.BooleanField(default=False)
-    reactions = models.ForeignKey(
-        Reaction,
-        on_delete=models.SET_NULL,
-        blank=True,
-        null=True,
-        related_name="reactions",
-    )
 
     write_access = AdminGroup.all()
 

app/emoji/models/news_reaction.py

@@ -0,0 +1,21 @@
+from django.db import models
+
+from app.common.enums import Groups
+from app.common.permissions import BasePermissionModel
+from app.content.models.news import News
+from app.emoji.models.reaction import Reaction
+from app.util.models import BaseModel
+
+
+class NewsReaction(BaseModel, BasePermissionModel):
+    reaction = models.ForeignKey(Reaction, on_delete=models.CASCADE)
+    news = models.ForeignKey(News, on_delete=models.CASCADE)
+
+    write_access = [Groups.TIHLDE]
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=["reaction", "news"], name="unique together: reaction and news"
+            )
+        ]

app/emoji/serializers/news_reaction.py

@@ -0,0 +1,11 @@
+from app.common.serializers import BaseModelSerializer
+from app.emoji.models.news_reaction import NewsReaction
+
+
+class UserNewsReactionSerializer(BaseModelSerializer):
+    class Meta:
+        model = NewsReaction
+        fields = (
+            "reaction",
+            "news",
+        )