Complete invoice call validation feature

counter/migrations/0033_invoicecall.py

@@ -0,0 +1,51 @@
+# Generated by Django 5.2.3 on 2025-10-15 21:54
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+import counter.models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("club", "0014_alter_club_options_rename_unix_name_club_slug_name_and_more"),
+        ("counter", "0032_scheduledproductaction"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="InvoiceCall",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "is_validated",
+                    models.BooleanField(default=False, verbose_name="is validated"),
+                ),
+                ("month", counter.models.MonthField(verbose_name="invoice date")),
+                (
+                    "club",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE, to="club.club"
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Invoice call",
+                "verbose_name_plural": "Invoice calls",
+                "constraints": [
+                    models.UniqueConstraint(
+                        fields=("club", "month"),
+                        name="counter_invoicecall_unique_club_month",
+                    )
+                ],
+            },
+        ),
+    ]