散布実績レビュー修正: バグ修正・仕様適合・デッドコード削除

- 候補API: 運搬済みフィルタ(date IS NOT NULL)を追加。
  delivery_plan_id指定時は全明細表示、年度全体時のみ日付フィルタ適用
- StockTransaction.spreading_item: CASCADE→SET_NULL に修正（仕様7.3準拠）
- perform_destroy: SET_NULL対応でUSEを明示削除してからsession削除
- ConfirmSpreadingModal.tsx: 未使用のため削除
- FertilizerEditPage.tsx: 旧散布確定関連デッドコード全除去
  (isConfirmed/confirmedAt state, handleUnconfirm, 確定取消ボタン, 確定済みバナー)
- services.py: 未使用のto_decimal_or_zero削除

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/apps/fertilizer/services.py

@@ -56,10 +56,3 @@ def sync_stock_uses_for_spreading_session(session):
             fertilization_plan=None,
             spreading_item=item,
         )
-
-
-def to_decimal_or_zero(value):
-    try:
-        return Decimal(str(value))
-    except Exception:
-        return Decimal('0')

backend/apps/fertilizer/views.py

@@ -381,8 +381,10 @@ class SpreadingSessionViewSet(viewsets.ModelViewSet):
         return SpreadingSessionSerializer
 
     def perform_destroy(self, instance):
+        from apps.materials.models import StockTransaction
         year = instance.year
         affected_pairs = {(item.field_id, item.fertilizer_id) for item in instance.items.all()}
+        StockTransaction.objects.filter(spreading_item__session=instance).delete()
         instance.delete()
         sync_actual_bags_for_pairs(year, affected_pairs)
 
@@ -485,6 +487,8 @@ class SpreadingCandidatesView(APIView):
         delivery_queryset = DeliveryTripItem.objects.filter(trip__delivery_plan__year=year)
         if delivery_plan_id:
             delivery_queryset = delivery_queryset.filter(trip__delivery_plan_id=delivery_plan_id)
+        else:
+            delivery_queryset = delivery_queryset.filter(trip__date__isnull=False)
         delivery_rows = delivery_queryset.values(
             'field_id',
             'field__name',

backend/apps/materials/migrations/0004_fix_spreading_item_on_delete.py

@@ -0,0 +1,20 @@
+# Generated by Django 5.0 on 2026-03-17 10:44
+
+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', '0003_stocktransaction_spreading_item_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='stocktransaction',
+            name='spreading_item',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='stock_transactions', to='fertilizer.spreadingsessionitem', verbose_name='散布実績明細'),
+        ),
+    ]

backend/apps/materials/models.py

@@ -207,7 +207,7 @@ class StockTransaction(models.Model):
     )
     spreading_item = models.ForeignKey(
         'fertilizer.SpreadingSessionItem',
-        on_delete=models.CASCADE,
+        on_delete=models.SET_NULL,
         null=True,
         blank=True,
         related_name='stock_transactions',

frontend/src/app/fertilizer/_components/ConfirmSpreadingModal.tsx

@@ -1,308 +0,0 @@
-'use client';
-
-import { useEffect, useMemo, useState } from 'react';
-import { Loader2, X } from 'lucide-react';
-
-import { api } from '@/lib/api';
-import { FertilizationPlan } from '@/types';
-
-interface ConfirmSpreadingModalProps {
-  plan: FertilizationPlan | null;
-  isOpen: boolean;
-  onClose: () => void;
-  onConfirmed: () => Promise<void> | void;
-}
-
-type ActualMap = Record<string, string>;
-
-const entryKey = (fieldId: number, fertilizerId: number) => `${fieldId}-${fertilizerId}`;
-type EntryMatrix = Record<number, Record<number, string>>;
-
-export default function ConfirmSpreadingModal({
-  plan,
-  isOpen,
-  onClose,
-  onConfirmed,
-}: ConfirmSpreadingModalProps) {
-  const [actuals, setActuals] = useState<ActualMap>({});
-  const [saving, setSaving] = useState(false);
-  const [error, setError] = useState<string | null>(null);
-
-  useEffect(() => {
-    if (!isOpen || !plan) {
-      return;
-    }
-
-    const nextActuals: ActualMap = {};
-    plan.entries.forEach((entry) => {
-      nextActuals[entryKey(entry.field, entry.fertilizer)] = String(entry.bags);
-    });
-    setActuals(nextActuals);
-    setError(null);
-  }, [isOpen, plan]);
-
-  const layout = useMemo(() => {
-    if (!plan) {
-      return {
-        fields: [] as { id: number; name: string; areaTan: string | undefined }[],
-        fertilizers: [] as { id: number; name: string }[],
-        planned: {} as EntryMatrix,
-      };
-    }
-
-    const fieldMap = new Map<number, { id: number; name: string; areaTan: string | undefined }>();
-    const fertilizerMap = new Map<number, { id: number; name: string }>();
-    const planned: EntryMatrix = {};
-
-    plan.entries.forEach((entry) => {
-      if (!fieldMap.has(entry.field)) {
-        fieldMap.set(entry.field, {
-          id: entry.field,
-          name: entry.field_name ?? `圃場ID:${entry.field}`,
-          areaTan: entry.field_area_tan,
-        });
-      }
-      if (!fertilizerMap.has(entry.fertilizer)) {
-        fertilizerMap.set(entry.fertilizer, {
-          id: entry.fertilizer,
-          name: entry.fertilizer_name ?? `肥料ID:${entry.fertilizer}`,
-        });
-      }
-      if (!planned[entry.field]) {
-        planned[entry.field] = {};
-      }
-      planned[entry.field][entry.fertilizer] = String(entry.bags);
-    });
-
-    return {
-      fields: Array.from(fieldMap.values()),
-      fertilizers: Array.from(fertilizerMap.values()),
-      planned,
-    };
-  }, [plan]);
-
-  if (!isOpen || !plan) {
-    return null;
-  }
-
-  const handleConfirm = async () => {
-    setSaving(true);
-    setError(null);
-
-    try {
-      await api.post(`/fertilizer/plans/${plan.id}/confirm_spreading/`, {
-        entries: plan.entries.map((entry) => ({
-          field_id: entry.field,
-          fertilizer_id: entry.fertilizer,
-          actual_bags: Number(actuals[entryKey(entry.field, entry.fertilizer)] || 0),
-        })),
-      });
-      await onConfirmed();
-      onClose();
-    } catch (e: unknown) {
-      console.error(e);
-      const detail =
-        typeof e === 'object' &&
-        e !== null &&
-        'response' in e &&
-        typeof e.response === 'object' &&
-        e.response !== null &&
-        'data' in e.response
-          ? JSON.stringify(e.response.data)
-          : '散布確定に失敗しました。';
-      setError(detail);
-    } finally {
-      setSaving(false);
-    }
-  };
-
-  const numericValue = (value: string | undefined) => {
-    const parsed = parseFloat(value ?? '0');
-    return isNaN(parsed) ? 0 : parsed;
-  };
-
-  const actualTotalByField = (fieldId: number) =>
-    layout.fertilizers.reduce(
-      (sum, fertilizer) => sum + numericValue(actuals[entryKey(fieldId, fertilizer.id)]),
-      0
-    );
-
-  const actualTotalByFertilizer = (fertilizerId: number) =>
-    layout.fields.reduce(
-      (sum, field) => sum + numericValue(actuals[entryKey(field.id, fertilizerId)]),
-      0
-    );
-
-  return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-gray-900/40 px-4">
-      <div className="max-h-[92vh] w-full max-w-[95vw] overflow-hidden rounded-2xl bg-white shadow-2xl">
-        <div className="flex items-center justify-between border-b border-gray-200 px-6 py-4">
-          <div>
-            <h2 className="text-lg font-semibold text-gray-900">
-              散布確定: 「{plan.name}」
-            </h2>
-            <p className="text-sm text-gray-500">
-              施肥計画編集と同じ並びで、各セルの計画値を確認しながら実績数量を入力します。
-            </p>
-          </div>
-          <button
-            onClick={onClose}
-            className="rounded-full p-2 text-gray-400 transition hover:bg-gray-100 hover:text-gray-600"
-          >
-            <X className="h-5 w-5" />
-          </button>
-        </div>
-
-        <div className="max-h-[calc(92vh-144px)] overflow-y-auto bg-gray-50 px-6 py-5">
-          {error && (
-            <div className="mb-4 rounded-lg border border-red-300 bg-red-50 px-4 py-3 text-sm text-red-700">
-              {error}
-            </div>
-          )}
-
-          <div className="mb-4 rounded-lg bg-white p-4 shadow">
-            <div className="grid gap-3 text-sm text-gray-700 sm:grid-cols-4">
-              <div>
-                <div className="text-xs text-gray-500">年度</div>
-                <div className="font-medium">{plan.year}年度</div>
-              </div>
-              <div>
-                <div className="text-xs text-gray-500">作物 / 品種</div>
-                <div className="font-medium">
-                  {plan.crop_name} / {plan.variety_name}
-                </div>
-              </div>
-              <div>
-                <div className="text-xs text-gray-500">対象圃場</div>
-                <div className="font-medium">{plan.field_count}筆</div>
-              </div>
-              <div>
-                <div className="text-xs text-gray-500">肥料数</div>
-                <div className="font-medium">{plan.fertilizer_count}種</div>
-              </div>
-            </div>
-          </div>
-
-          <div className="mb-3 rounded-lg border border-sky-200 bg-sky-50 px-4 py-3 text-xs text-sky-800">
-            各セルの灰色表示が計画値、入力欄が散布実績です。「0」を入力したセルは未散布として引当解除されます。
-          </div>
-
-          <div className="overflow-x-auto rounded-lg bg-white shadow">
-            <table className="min-w-full text-sm border-collapse">
-              <thead className="bg-gray-50">
-                <tr>
-                  <th className="border border-gray-200 px-4 py-3 text-left font-medium text-gray-700 whitespace-nowrap">
-                    圃場名
-                  </th>
-                  <th className="border border-gray-200 px-3 py-3 text-right font-medium text-gray-700 whitespace-nowrap">
-                    面積(反)
-                  </th>
-                  {layout.fertilizers.map((fertilizer) => (
-                    <th
-                      key={fertilizer.id}
-                      className="border border-gray-200 px-3 py-2 text-center font-medium text-gray-700 whitespace-nowrap"
-                    >
-                      <div>{fertilizer.name}</div>
-                      <div className="mt-0.5 text-[11px] font-normal text-gray-400">
-                        計画 / 実績
-                      </div>
-                    </th>
-                  ))}
-                  <th className="border border-gray-200 px-3 py-3 text-right font-medium text-gray-700 whitespace-nowrap">
-                    実績合計
-                  </th>
-                </tr>
-              </thead>
-              <tbody>
-                {layout.fields.map((field) => (
-                  <tr key={field.id} className="hover:bg-gray-50">
-                    <td className="border border-gray-200 px-4 py-2 whitespace-nowrap text-gray-800">
-                      {field.name}
-                    </td>
-                    <td className="border border-gray-200 px-3 py-2 text-right text-gray-600 whitespace-nowrap">
-                      {field.areaTan ?? '-'}
-                    </td>
-                    {layout.fertilizers.map((fertilizer) => {
-                      const key = entryKey(field.id, fertilizer.id);
-                      const planned = layout.planned[field.id]?.[fertilizer.id];
-                      const hasEntry = planned !== undefined;
-                      return (
-                        <td key={key} className="border border-gray-200 px-2 py-2">
-                          {hasEntry ? (
-                            <div className="flex flex-col items-end gap-1">
-                              <span className="text-[11px] text-gray-400">
-                                計画 {planned}
-                              </span>
-                              <input
-                                type="number"
-                                min="0"
-                                step="0.1"
-                                value={actuals[key] ?? ''}
-                                onChange={(e) =>
-                                  setActuals((prev) => ({
-                                    ...prev,
-                                    [key]: e.target.value,
-                                  }))
-                                }
-                                className="w-20 rounded-md border border-gray-300 px-2 py-1 text-right text-sm focus:border-green-500 focus:outline-none focus:ring-2 focus:ring-green-200"
-                              />
-                            </div>
-                          ) : (
-                            <div className="text-center text-gray-300">-</div>
-                          )}
-                        </td>
-                      );
-                    })}
-                    <td className="border border-gray-200 px-3 py-2 text-right font-medium text-gray-700">
-                      {actualTotalByField(field.id).toFixed(2)}
-                    </td>
-                  </tr>
-                ))}
-              </tbody>
-              <tfoot className="bg-gray-50 font-semibold">
-                <tr>
-                  <td className="border border-gray-200 px-4 py-2">合計</td>
-                  <td className="border border-gray-200 px-3 py-2 text-right text-gray-500">
-                    {layout.fields
-                      .reduce((sum, field) => sum + (parseFloat(field.areaTan ?? '0') || 0), 0)
-                      .toFixed(2)}
-                  </td>
-                  {layout.fertilizers.map((fertilizer) => (
-                    <td
-                      key={fertilizer.id}
-                      className="border border-gray-200 px-3 py-2 text-right text-gray-700"
-                    >
-                      {actualTotalByFertilizer(fertilizer.id).toFixed(2)}
-                    </td>
-                  ))}
-                  <td className="border border-gray-200 px-3 py-2 text-right text-green-700">
-                    {layout.fields
-                      .reduce((sum, field) => sum + actualTotalByField(field.id), 0)
-                      .toFixed(2)}
-                  </td>
-                </tr>
-              </tfoot>
-            </table>
-          </div>
-        </div>
-
-        <div className="flex justify-end gap-3 border-t border-gray-200 px-6 py-4">
-          <button
-            onClick={onClose}
-            className="rounded-lg border border-gray-300 px-4 py-2 text-sm text-gray-700 transition hover:bg-gray-100"
-          >
-            キャンセル
-          </button>
-          <button
-            onClick={handleConfirm}
-            disabled={saving}
-            className="inline-flex items-center gap-2 rounded-lg bg-green-600 px-4 py-2 text-sm font-medium text-white transition hover:bg-green-700 disabled:cursor-not-allowed disabled:opacity-60"
-          >
-            {saving && <Loader2 className="h-4 w-4 animate-spin" />}
-            一括確定
-          </button>
-        </div>
-      </div>
-    </div>
-  );
-}

frontend/src/app/fertilizer/_components/FertilizerEditPage.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useCallback } from 'react';
 import { useRouter } from 'next/navigation';
-import { ChevronLeft, Plus, X, Calculator, Save, FileDown, Undo2, Sprout } from 'lucide-react';
+import { ChevronLeft, Plus, X, Calculator, Save, FileDown, Sprout } from 'lucide-react';
 import Navbar from '@/components/Navbar';
 import { api } from '@/lib/api';
 import { Crop, FertilizationPlan, Fertilizer, Field, StockSummary } from '@/types';
@@ -66,8 +66,6 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
   const [roundedColumns, setRoundedColumns] = useState<Set<number>>(new Set());
   const [stockByMaterialId, setStockByMaterialId] = useState<Record<number, StockSummary>>({});
   const [initialPlanTotals, setInitialPlanTotals] = useState<Record<number, number>>({});
-  const [isConfirmed, setIsConfirmed] = useState(false);
-  const [confirmedAt, setConfirmedAt] = useState<string | null>(null);
 
   const [loading, setLoading] = useState(!isNew);
   const [saving, setSaving] = useState(false);
@@ -103,9 +101,6 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
           setName(plan.name);
           setYear(plan.year);
           setVarietyId(plan.variety);
-          setIsConfirmed(false);
-          setConfirmedAt(null);
-
           const fertIds = Array.from(new Set(plan.entries.map((e) => e.fertilizer)));
           const ferts = fertsRes.data.filter((f: Fertilizer) => fertIds.includes(f.id));
           setPlanFertilizers(ferts);
@@ -202,7 +197,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
 
   // ─── 肥料追加・削除
   const addFertilizer = (fert: Fertilizer) => {
-    if (isConfirmed) return;
+
     if (planFertilizers.find((f) => f.id === fert.id)) return;
     setPlanFertilizers((prev) => [...prev, fert]);
     setCalcSettings((prev) => [...prev, { fertilizer_id: fert.id, method: 'per_tan', param: '' }]);
@@ -210,7 +205,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
   };
 
   const removeFertilizer = (id: number) => {
-    if (isConfirmed) return;
+
     setPlanFertilizers((prev) => prev.filter((f) => f.id !== id));
     setCalcSettings((prev) => prev.filter((s) => s.fertilizer_id !== id));
     const dropCol = (m: Matrix): Matrix => {
@@ -229,14 +224,14 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
 
   // ─── 圃場追加・削除
   const addField = (field: Field) => {
-    if (isConfirmed) return;
+
     if (selectedFields.find((f) => f.id === field.id)) return;
     setSelectedFields((prev) => [...prev, field]);
     setShowFieldPicker(false);
   };
 
   const removeField = (id: number) => {
-    if (isConfirmed) return;
+
     setSelectedFields((prev) => prev.filter((f) => f.id !== id));
     setCalcMatrix((prev) => { const next = { ...prev }; delete next[id]; return next; });
     setAdjusted((prev) => { const next = { ...prev }; delete next[id]; return next; });
@@ -246,7 +241,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
 
   // ─── 自動計算
   const runCalc = async (setting: CalcSetting) => {
-    if (isConfirmed) return;
+
     if (!setting.param) {
       setSaveError('パラメータを入力してください');
       return;
@@ -305,7 +300,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
 
   // ─── セル更新（adjusted を更新）
   const updateCell = (fieldId: number, fertId: number, value: string) => {
-    if (isConfirmed) return;
+
     setAdjusted((prev) => {
       const next = { ...prev };
       if (!next[fieldId]) next[fieldId] = {};
@@ -316,7 +311,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
 
   // ─── 列単位で四捨五入 / 元に戻す（トグル）
   const roundColumn = (fertId: number) => {
-    if (isConfirmed) return;
+
     if (roundedColumns.has(fertId)) {
       // 元に戻す: adjusted からこの列を削除 → calc値が再び表示される
       setAdjusted((prev) => {
@@ -390,10 +385,6 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
   // ─── 保存（adjusted 優先、なければ calc 値を使用）
   const handleSave = async () => {
     setSaveError(null);
-    if (isConfirmed) {
-      setSaveError('確定済みの施肥計画は編集できません。');
-      return;
-    }
     if (!name.trim()) { setSaveError('計画名を入力してください'); return; }
     if (!varietyId) { setSaveError('品種を選択してください'); return; }
     if (selectedFields.length === 0) { setSaveError('圃場を1つ以上選択してください'); return; }
@@ -434,31 +425,6 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
     }
   };
 
-  // ─── 確定取消
-  const handleUnconfirm = async () => {
-    if (!planId) return;
-    setSaveError(null);
-    try {
-      await api.post(`/fertilizer/plans/${planId}/unconfirm/`);
-      setIsConfirmed(false);
-      setConfirmedAt(null);
-      // 引当が再作成されるので在庫情報を再取得
-      const stockRes = await api.get('/materials/fertilizer-stock/');
-      setStockByMaterialId(
-        stockRes.data.reduce(
-          (acc: Record<number, StockSummary>, summary: StockSummary) => {
-            acc[summary.material_id] = summary;
-            return acc;
-          },
-          {}
-        )
-      );
-    } catch (e) {
-      console.error(e);
-      setSaveError('確定取消に失敗しました');
-    }
-  };
-
   // ─── PDF出力
   const handlePdf = async () => {
     if (!planId) return;
@@ -514,15 +480,6 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                 この施肥計画から散布実績へ進む
               </button>
             )}
-            {!isNew && isConfirmed && (
-              <button
-                onClick={handleUnconfirm}
-                className="flex items-center gap-2 px-4 py-2 border border-amber-300 rounded-lg text-sm text-amber-700 hover:bg-amber-50"
-              >
-                <Undo2 className="h-4 w-4" />
-                確定取消
-              </button>
-            )}
             {!isNew && (
               <button
                 onClick={handlePdf}
@@ -534,11 +491,11 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
             )}
             <button
               onClick={handleSave}
-              disabled={saving || isConfirmed}
+              disabled={saving}
               className="flex items-center gap-2 px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 disabled:opacity-50 disabled:cursor-not-allowed"
             >
               <Save className="h-4 w-4" />
-              {isConfirmed ? '確定済み' : saving ? '保存中...' : '保存'}
+              {saving ? '保存中...' : '保存'}
             </button>
           </div>
         </div>
@@ -552,16 +509,6 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
           </div>
         )}
 
-        {isConfirmed && (
-          <div className="mb-4 flex items-start gap-2 bg-sky-50 border border-sky-300 text-sky-800 rounded-lg px-4 py-3 text-sm">
-            <span className="font-bold shrink-0">i</span>
-            <span>
-              この施肥計画は散布確定済みです。
-              {confirmedAt ? ` 確定日時: ${new Date(confirmedAt).toLocaleString('ja-JP')}` : ''}
-            </span>
-          </div>
-        )}
-
         {/* 基本情報 */}
         <div className="bg-white rounded-lg shadow p-4 mb-4 flex flex-wrap gap-4 items-end">
           <div className="flex-1 min-w-48">
@@ -571,7 +518,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
               value={name}
               onChange={(e) => setName(e.target.value)}
               placeholder="例: 2025年度 コシヒカリ 元肥"
-              disabled={isConfirmed}
+
             />
           </div>
           <div>
@@ -580,7 +527,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
               className="border border-gray-300 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-green-500"
               value={year}
               onChange={(e) => setYear(parseInt(e.target.value))}
-              disabled={isConfirmed}
+
             >
               {years.map((y) => <option key={y} value={y}>{y}年度</option>)}
             </select>
@@ -591,7 +538,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
               className="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-green-500"
               value={varietyId}
               onChange={(e) => setVarietyId(e.target.value ? parseInt(e.target.value) : '')}
-              disabled={isConfirmed}
+
             >
               <option value="">品種を選択</option>
               {crops.map((crop) => (
@@ -617,7 +564,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
             </h2>
             <button
               onClick={() => setShowFieldPicker(true)}
-              disabled={isConfirmed}
+
               className="flex items-center gap-1 text-xs text-green-600 hover:text-green-800 border border-green-300 rounded px-2 py-1 disabled:opacity-40 disabled:cursor-not-allowed"
             >
               <Plus className="h-3 w-3" />圃場を追加
@@ -637,7 +584,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                 {f.name}（{f.area_tan}反）
                 <button
                   onClick={() => removeField(f.id)}
-                  disabled={isConfirmed}
+    
                   className="text-green-400 hover:text-red-500 disabled:opacity-40 disabled:cursor-not-allowed"
                 >
                   <X className="h-3 w-3" />
@@ -657,14 +604,14 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                   type="checkbox"
                   checked={calcNewOnly}
                   onChange={(e) => setCalcNewOnly(e.target.checked)}
-                  disabled={isConfirmed}
+    
                   className="rounded border-gray-300 text-blue-600 focus:ring-blue-500"
                 />
                 未入力圃場のみ
               </label>
               <button
                 onClick={() => setShowFertPicker(true)}
-                disabled={isConfirmed}
+  
                 className="flex items-center gap-1 text-xs text-green-600 hover:text-green-800 border border-green-300 rounded px-2 py-1 disabled:opacity-40 disabled:cursor-not-allowed"
               >
                 <Plus className="h-3 w-3" />肥料を追加
@@ -687,7 +634,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                       className="border border-gray-300 rounded px-2 py-1 text-xs"
                       value={setting.method}
                       onChange={(e) => updateCalcSetting(fert.id, 'method', e.target.value)}
-                      disabled={isConfirmed}
+        
                     >
                       {Object.entries(METHOD_LABELS).map(([k, v]) => (
                         <option key={k} value={k}>{v}</option>
@@ -700,19 +647,19 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                       value={setting.param}
                       onChange={(e) => updateCalcSetting(fert.id, 'param', e.target.value)}
                       placeholder="値"
-                      disabled={isConfirmed}
+        
                     />
                     <span className="text-xs text-gray-500 w-24">{METHOD_UNIT[setting.method]}</span>
                     <button
                       onClick={() => runCalc(setting)}
-                      disabled={isConfirmed}
+        
                       className="flex items-center gap-1 text-xs bg-blue-50 border border-blue-300 text-blue-700 rounded px-3 py-1 hover:bg-blue-100 disabled:opacity-40 disabled:cursor-not-allowed"
                     >
                       <Calculator className="h-3 w-3" />計算
                     </button>
                     <button
                       onClick={() => removeFertilizer(fert.id)}
-                      disabled={isConfirmed}
+        
                       className="ml-auto text-gray-300 hover:text-red-500 disabled:opacity-40 disabled:cursor-not-allowed"
                     >
                       <X className="h-4 w-4" />
@@ -766,7 +713,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                           （袋）
                           <button
                             onClick={() => roundColumn(f.id)}
-                            disabled={isConfirmed}
+              
                             className={`inline-flex items-center justify-center w-5 h-5 rounded font-bold leading-none ${
                               isRounded
                                 ? 'bg-amber-100 text-amber-600 hover:bg-amber-200'
@@ -810,7 +757,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                                 value={inputValue}
                                 onChange={(e) => updateCell(field.id, fert.id, e.target.value)}
                                 placeholder="-"
-                                disabled={isConfirmed}
+                  
                               />
                             </div>
                             {actualVal !== undefined && (
@@ -865,7 +812,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                     <button
                       key={f.id}
                       onClick={() => addField(f)}
-                      disabled={isConfirmed}
+        
                       className="w-full text-left px-3 py-2 hover:bg-green-50 rounded text-sm flex justify-between disabled:opacity-40 disabled:cursor-not-allowed"
                     >
                       <span>{f.name}</span>
@@ -880,7 +827,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                 <button
                   key={f.id}
                   onClick={() => addField(f)}
-                  disabled={isConfirmed}
+    
                   className="w-full text-left px-3 py-2 hover:bg-gray-50 rounded text-sm flex justify-between disabled:opacity-40 disabled:cursor-not-allowed"
                 >
                   <span>{f.name}</span>
@@ -908,7 +855,7 @@ export default function FertilizerEditPage({ planId }: { planId?: number }) {
                   <button
                     key={f.id}
                     onClick={() => addFertilizer(f)}
-                    disabled={isConfirmed}
+      
                     className="w-full text-left px-3 py-2 hover:bg-green-50 rounded text-sm disabled:opacity-40 disabled:cursor-not-allowed"
                   >
                     <span className="font-medium">{f.name}</span>