Конкретно пересмотрел логику работы. Легаси вынесена в архив

shiftflow/migrations/0031_procurementrequirement.py

@@ -0,0 +1,30 @@
+# Generated by Django 6.0.3 on 2026-04-11 20:08
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('manufacturing', '0007_remove_productentity_route_delete_routestub'),
+        ('shiftflow', '0030_workitem_comment_alter_item_status_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ProcurementRequirement',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('required_qty', models.FloatField(verbose_name='Потребность (к закупке)')),
+                ('status', models.CharField(choices=[('to_order', 'К заказу'), ('ordered', 'Заказано'), ('closed', 'Закрыто')], default='to_order', max_length=20, verbose_name='Статус')),
+                ('component', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to='manufacturing.productentity', verbose_name='Компонент (покупное/литье)')),
+                ('deal', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='shiftflow.deal', verbose_name='Сделка')),
+            ],
+            options={
+                'verbose_name': 'Потребность снабжения',
+                'verbose_name_plural': 'Потребности снабжения',
+                'unique_together': {('deal', 'component')},
+            },
+        ),
+    ]