Change TeamMember id field to random ids

shiftregister/fallback/admin.py

@@ -26,8 +26,9 @@ class FallbackAssignmentInline(admin.TabularInline):
 
 @admin.register(TeamMember)
 class TeamMemberAdmin(admin.ModelAdmin):
-    fields = ["name"]
-    list_display = ["name", "shift_count"]
+    fields = ("id", "name")
+    readonly_fields = ("id",)
+    list_display = ("name", "shift_count")
     inlines = (FallbackAssignmentInline,)
     actions = (assign_random_shifts, clear_shifts, reshuffle_shifts)
 

shiftregister/fallback/migrations/0005_alter_teammember_id.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.0.4 on 2023-05-13 17:28
+
+from django.db import migrations, models
+import shiftregister.fallback.models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("fallback", "0004_remove_fallbackassignment_slot"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="teammember",
+            name="id",
+            field=models.IntegerField(
+                default=shiftregister.fallback.models.generate_id,
+                editable=False,
+                primary_key=True,
+                serialize=False,
+            ),
+        ),
+    ]

shiftregister/fallback/models.py

@@ -4,11 +4,17 @@ from django.db.models import Count, Exists, OuterRef, ExpressionWrapper
 from django.db.models.lookups import LessThan
 from django.db.models.fields import DateTimeField
 import math
+import secrets
 
 night_shift_query = Q(start_at__hour__gte=21) | Q(start_at__hour__lte=10)
 
 
+def generate_id():
+    return int.from_bytes(secrets.token_bytes(3))
+
+
 class TeamMember(models.Model):
+    id = models.IntegerField(default=generate_id, editable=False, primary_key=True)
     name = models.CharField(max_length=100)
     fallback_shifts = models.ManyToManyField(Shift, through="FallbackAssignment")