added Vote

civicfix/core/models.py

@@ -56,4 +56,23 @@ class Issue(models.Model):
     updated_at = models.DateTimeField(auto_now=True)
     
     def __str__(self):
-        return self.title
+        return self.title
+    
+    def vote_count(self):
+        return self.votes.count()
+    
+    def has_user_voted(self, user):
+        if user.is_authenticated:
+            return self.votes.filter(user=user).exists()
+        return False
+    
+class Vote(models.Model):
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    issue = models.ForeignKey(Issue, on_delete=models.CASCADE, related_name='votes')
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        unique_together = ('user', 'issue')  # Prevent duplicate votes per user
+
+    def __str__(self):
+        return f"{self.user.username} voted on {self.issue.title}"