Improved class naming for admin

cntmanage/flightslot/models/hourbuildings.py

@@ -1,6 +1,5 @@
 from django.utils.translation import gettext_lazy as _
 from django.db import models
-from datetime import timedelta
 
 from polymorphic.models import PolymorphicModel
 
@@ -78,8 +77,17 @@ class HourBuildingLegBase(PolymorphicModel):
     )
 
     time = models.DurationField(
-        null=False
+        null=False,
+        blank=False
     )
+
+    # Change displayed name in the inline form 
+    class Meta(PolymorphicModel.Meta):
+        verbose_name = "Flight Leg or Stop"
+        verbose_name_plural = "Flight Legs or Stops"
+
+    def __str__(self):
+        return f"Hour Building Leg"
         
 class HourBuildingLegFlight(HourBuildingLegBase):
     departure = models.CharField(
@@ -102,7 +110,7 @@ class HourBuildingLegFlight(HourBuildingLegBase):
     )
 
     # Change displayed name in the inline form 
-    class Meta(PolymorphicModel.Meta):
+    class Meta(HourBuildingLegBase.Meta):
         verbose_name = "Flight leg"
         verbose_name_plural = "Flight legs"
 
@@ -110,8 +118,8 @@ class HourBuildingLegFlight(HourBuildingLegBase):
         return f"{self.departure} -> {self.destination}"
     
     def save(self, *args, **kwargs):
-        self.departure = self.departure.capitalize().strip()
-        self.destination = self.destination.capitalize().strip()
+        self.departure = self.departure.upper().strip()
+        self.destination = self.destination.upper().strip()
         super().save(*args, **kwargs)
     
 class HourBuildingLegStop(HourBuildingLegBase):
@@ -121,7 +129,7 @@ class HourBuildingLegStop(HourBuildingLegBase):
     )
 
     # Change displayed name in the inline form
-    class Meta(PolymorphicModel.Meta):
+    class Meta(HourBuildingLegBase.Meta):
         verbose_name = "Stop"
         verbose_name_plural = "Stops"