Improved Model Admin views, student adds user for login

techdb/flightslot/models.py

@@ -1,7 +1,9 @@
 from django.db import models
 from django.contrib import admin
+from django.contrib.auth.models import User
 from django.db.models.functions import Now, ExtractWeek, ExtractYear
 from django.utils.translation import gettext_lazy as _
+from datetime import timedelta, date
 
 # Create your models here.
 
@@ -21,12 +23,12 @@ class Course(models.Model):
 
     cnumber = models.PositiveSmallIntegerField(
         null=False,
-        default=ExtractYear(Now())
+        default=date.today().year
     )
 
     year = models.PositiveSmallIntegerField(
         editable=False,
-        db_default=ExtractYear(Now())
+        db_default=date.today().year
     )
 
     def __str__(self):
@@ -63,6 +65,13 @@ class Student(models.Model):
         default=True
     )
 
+    user = models.OneToOneField(
+        User, 
+        on_delete=models.CASCADE, 
+        null=True, 
+        blank=True
+    )
+
     def __str__(self):
         return f"{self.surname} {self.name[0]}. => {self.course}"
 
@@ -74,7 +83,7 @@ class WeekPreference(models.Model):
     week = models.PositiveSmallIntegerField(
         null=False,
         db_index=True,
-        default=ExtractWeek(Now()) + 1,
+        db_default=date.today().isocalendar().week,
         auto_created=True,
         verbose_name="Week Number"
     )
@@ -119,7 +128,7 @@ class MissionProfile(models.Model):
 
     duration = models.DurationField(
         null=False,
-        default=1
+        default=timedelta(hours=1)
     )
 
     notes = models.TextField(
@@ -224,7 +233,7 @@ class HourBuildingLeg(models.Model):
 
     time = models.DurationField(
         null=False,
-        default=1
+        default = timedelta(hours=1)
     )
 
     stop = models.BooleanField(