minor

epdb/migrations/0011_auto_20251111_1413.py

@@ -8,10 +8,9 @@ from django.db.models import Min
 
 
 def set_cc(apps, schema_editor):
-    # Set proper cc value
     License = apps.get_model("epdb", "License")
 
-    # For all licenses extract cc_string
+    # For all existing licenses extract cc_string from link
     for license in License.objects.all():
         pattern = r"/licenses/([^/]+)/4\.0"
         match = re.search(pattern, license.link)
@@ -31,6 +30,8 @@ def set_cc(apps, schema_editor):
             new_license.image_link = f"https://licensebuttons.net/l/{cc_string}/4.0/88x31.png"
             new_license.save()
 
+    # As we might have existing Licenses representing the same License,
+    # get min pk and all pks as a list
     license_lookup_qs = License.objects.values("cc_string").annotate(
         lowest_pk=Min("id"), all_pks=ArrayAgg("id", order_by=("id",))
     )
@@ -42,11 +43,11 @@ def set_cc(apps, schema_editor):
     Packages = apps.get_model("epdb", "Package")
 
     for k, v in license_lookup.items():
-        # Set to min ID
+        # Set min pk to all packages pointing to any of the duplicates
         Packages.objects.filter(pk__in=v[1]).update(license_id=v[0])
-        # Remove min ID
+        # remove the min pk from "other" pks as we use them for deletion
         v[1].remove(v[0])
-        # Delete Redundant License Objects
+        # Delete redundant License objects
         License.objects.filter(pk__in=v[1]).delete()