Add a new permission to hierarchy

INSIGHTSAPI/hierarchy/admin.py

@@ -1,5 +1,6 @@
 from django.contrib import admin
 from users.models import User
+from django.db.models import Q
 from .models import Area, JobPosition
 
 
@@ -26,9 +27,10 @@ class AreaAdmin(admin.ModelAdmin):
     def formfield_for_foreignkey(self, db_field, request, **kwargs):
         """Customize the queryset for the manager field."""
         if db_field.name == "manager":
-            # Customizing the queryset to show only users with a rank >= 4
+            # Customizing the queryset to show only users with a rank >= 4 or have the manage_area permission
             kwargs["queryset"] = User.objects.filter(
-                job_position__rank__gte=4
+                Q(job_position__rank__gte=4)
+                | Q(user_permissions__codename="manage_area")
             ).order_by("first_name")
         return super().formfield_for_foreignkey(db_field, request, **kwargs)
 

INSIGHTSAPI/hierarchy/migrations/0007_alter_area_options.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.0.7 on 2024-09-10 15:52
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('hierarchy', '0006_area_parent'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='area',
+            options={'permissions': [('manage_area', 'Can manage the area')]},
+        ),
+    ]

INSIGHTSAPI/hierarchy/models.py

@@ -14,6 +14,11 @@ class Area(models.Model):
         "users.User", on_delete=models.SET_NULL, null=True, related_name="managed_areas"
     )
 
+    class Meta:
+        permissions = [
+            ("manage_area", "Can manage the area"),
+        ]
+
     def __str__(self) -> str:
         """String representation of the model."""
         return self.name