Merge pull request #372 from skoleapp/track-issued-codes

Track amount of issued invite codes

skole/migrations/0055_invite_code_initial_usages.py

@@ -0,0 +1,21 @@
+# Generated by Django 3.2 on 2021-04-12 15:46
+# Manually edited to take the default value from settings.
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("skole", "0054_fix_sequences"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="invitecode",
+            name="initial_usages",
+            field=models.PositiveIntegerField(
+                default=settings.INVITE_CODE_INITIAL_USAGES
+            ),
+        ),
+    ]

skole/migrations/0056_set_betauser_code_initial_usages.py

@@ -0,0 +1,32 @@
+from django.apps.registry import Apps
+from django.db import migrations
+from django.db.backends.base.schema import BaseDatabaseSchemaEditor
+
+
+def forwards_func(apps: Apps, schema_editor: BaseDatabaseSchemaEditor) -> None:
+    """
+    Make sure that the invite code that our 1.0 users used has no initial usages.
+
+    This makes it so that we don't end up calculating k-factor so that it would
+    incorrectly seem that any of those users got *invited* to the platform.
+    """
+
+    InviteCode = apps.get_model("skole", "InviteCode")
+
+    code = InviteCode.objects.filter(code="BETAUSER").first()
+    if code:
+        code.initial_usages = 0
+        code.save(update_fields=("initial_usages",))
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("skole", "0055_invite_code_initial_usages"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            code=forwards_func, reverse_code=migrations.RunPython.noop
+        ),
+    ]

skole/models/invite_code.py

@@ -56,6 +56,12 @@ class InviteCode(SkoleModel):
 
     usages = models.PositiveIntegerField(default=settings.INVITE_CODE_INITIAL_USAGES)
 
+    # Do not update this field's value on an object. This is only used for keeping track
+    # of how many invites we have issued in total even if we would edit the setting value.
+    initial_usages = models.PositiveIntegerField(
+        default=settings.INVITE_CODE_INITIAL_USAGES
+    )
+
     created = models.DateTimeField(auto_now_add=True)
     modified = models.DateTimeField(auto_now=True)