Allow linking chats

core/models.py

@@ -173,7 +173,7 @@ class PersonIdentifier(models.Model):
 
 class PlatformChatLink(models.Model):
     user = models.ForeignKey(User, on_delete=models.CASCADE)
-    person = models.ForeignKey(Person, on_delete=models.CASCADE)
+    person = models.ForeignKey(Person, on_delete=models.CASCADE, null=True, blank=True)
     person_identifier = models.ForeignKey(
         PersonIdentifier,
         on_delete=models.SET_NULL,
@@ -184,6 +184,7 @@ class PlatformChatLink(models.Model):
     chat_identifier = models.CharField(max_length=255)
     chat_jid = models.CharField(max_length=255, blank=True, null=True)
     chat_name = models.CharField(max_length=255, blank=True, null=True)
+    is_group = models.BooleanField(default=False)
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
 
@@ -224,7 +225,7 @@ class PlatformChatLink(models.Model):
         return super().save(*args, **kwargs)
 
     def __str__(self):
-        return f"{self.person.name} ({self.service}: {self.chat_identifier})"
+        return f"{self.person.name if self.person_id else self.chat_name or self.chat_identifier} ({self.service}: {self.chat_identifier})"
 
 
 class ChatSession(models.Model):