施肥散布実績機能を実装し運搬・作業記録・在庫連携を追加

backend/apps/materials/migrations/0003_stocktransaction_spreading_item_and_more.py

@@ -0,0 +1,25 @@
+# Generated by Django 5.0 on 2026-03-17 08:49
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fertilizer', '0008_spreadingsession_fertilizationentry_actual_bags_and_more'),
+        ('materials', '0002_stocktransaction_fertilization_plan'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='stocktransaction',
+            name='spreading_item',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='stock_transactions', to='fertilizer.spreadingsessionitem', verbose_name='散布実績明細'),
+        ),
+        migrations.AlterField(
+            model_name='stocktransaction',
+            name='transaction_type',
+            field=models.CharField(choices=[('purchase', '入庫'), ('use', '使用'), ('reserve', '引当'), ('adjustment_plus', '棚卸増'), ('adjustment_minus', '棚卸減'), ('discard', '廃棄')], max_length=30, verbose_name='取引種別'),
+        ),
+    ]

backend/apps/materials/models.py

@@ -205,6 +205,14 @@ class StockTransaction(models.Model):
         related_name='stock_reservations',
         verbose_name='施肥計画',
     )
+    spreading_item = models.ForeignKey(
+        'fertilizer.SpreadingSessionItem',
+        on_delete=models.CASCADE,
+        null=True,
+        blank=True,
+        related_name='stock_transactions',
+        verbose_name='散布実績明細',
+    )
     created_at = models.DateTimeField(auto_now_add=True)
 
     class Meta:

backend/apps/materials/stock_service.py

@@ -14,9 +14,6 @@ def create_reserves_for_plan(plan):
         transaction_type=StockTransaction.TransactionType.RESERVE,
     ).delete()
 
-    if plan.is_confirmed:
-        return
-
     occurred_on = (
         plan.updated_at.date() if getattr(plan, 'updated_at', None) else timezone.localdate()
     )