chore: make some fields of booking_schedule read-only after creation and add...

chore: make some fields of booking_schedule read-only after creation and add fields to __str__ function of Schedule model

MagisAir/booking/admin.py

@@ -19,6 +19,11 @@ class Sched_CrewAdmin(admin.ModelAdmin):
 class ScheduleAdmin(admin.ModelAdmin):
     model = Schedule
     list_display = ('Sched_Code', 'Flight_Date', 'Departure_Time', 'Arrival_Time', 'Duration', 'Flight_Cost', 'Flight_Code')
+    def get_readonly_fields(self, request, obj=None):
+        if obj:
+            return ['Departure_Time', 'Flight_Date', 'Arrival_Time', 'Duration']
+        else:
+            return []
 
 class CityAdmin(admin.ModelAdmin):
     model = City

MagisAir/booking/models.py

@@ -70,7 +70,7 @@ class Schedule(models.Model):
     Flight_Code = models.ForeignKey(Flight, on_delete=models.CASCADE)
 
     def __str__(self):
-        return str(self.Sched_Code)
+        return str(self.Sched_Code) + " - " + str(self.Flight_Code) + " " + str(self.Flight_Date) + " ETD: " + str(self.Departure_Time)
 
 
 class Booking(models.Model):