import django.db.models.deletion from django.db import migrations, models class Migration(migrations.Migration): dependencies = [ ('materials', '0001_initial'), ('fertilizer', '0005_fertilizer_material'), ] operations = [ migrations.AddField( model_name='stocktransaction', name='fertilization_plan', field=models.ForeignKey( blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='stock_reservations', to='fertilizer.fertilizationplan', verbose_name='施肥計画', ), ), ]