Show hook name in signal string method

core/models.py

@@ -183,7 +183,7 @@ class Signal(models.Model):
     received = models.IntegerField(default=0)
 
     def __str__(self):
-        return f"{self.name} ({self.signal}) - {self.direction}"
+        return f"{self.name} ({self.hook.name}) - {self.direction}"
 
 
 class Trade(models.Model):