施肥計画機能を追加（年度×品種単位のマトリクス管理）
- Backend: apps/fertilizer を新規追加 - Fertilizer（肥料マスタ）、FertilizationPlan、FertilizationEntry モデル - 肥料マスタ・施肥計画 CRUD API - 3方式の自動計算API（反当袋数・均等配分・反当チッソ成分量） - 作付け計画から圃場候補を取得する API - WeasyPrint による PDF 出力（圃場×肥料=袋数 マトリクス表） - Frontend: app/fertilizer を新規追加 - 施肥計画一覧（年度セレクタ・PDF出力・編集・削除） - 肥料マスタ管理（インライン編集） - 施肥計画編集（品種選択→圃場自動取得→肥料追加→自動計算→マトリクス手動調整） - Navbar に「施肥計画」メニューを追加（Sprout アイコン） - Cursor ルールファイル・連携ガイドを削除（Claude Code 単独運用へ） Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Akira
196
backend/apps/fertilizer/views.py
Normal file
196
backend/apps/fertilizer/views.py
Normal file
@@ -0,0 +1,196 @@
|
||||
from decimal import Decimal, InvalidOperation
|
||||
|
||||
from django.http import HttpResponse
|
||||
from django.template.loader import render_to_string
|
||||
from rest_framework import viewsets, status
|
||||
from rest_framework.decorators import action
|
||||
from rest_framework.permissions import IsAuthenticated
|
||||
from rest_framework.response import Response
|
||||
from rest_framework.views import APIView
|
||||
from weasyprint import HTML
|
||||
|
||||
from apps.fields.models import Field
|
||||
from apps.plans.models import Plan, Variety
|
||||
from .models import Fertilizer, FertilizationPlan
|
||||
from .serializers import (
|
||||
FertilizerSerializer,
|
||||
FertilizationPlanSerializer,
|
||||
FertilizationPlanWriteSerializer,
|
||||
)
|
||||
|
||||
|
||||
class FertilizerViewSet(viewsets.ModelViewSet):
|
||||
permission_classes = [IsAuthenticated]
|
||||
queryset = Fertilizer.objects.all()
|
||||
serializer_class = FertilizerSerializer
|
||||
|
||||
|
||||
class FertilizationPlanViewSet(viewsets.ModelViewSet):
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def get_queryset(self):
|
||||
qs = FertilizationPlan.objects.select_related('variety', 'variety__crop').prefetch_related(
|
||||
'entries', 'entries__field', 'entries__fertilizer'
|
||||
)
|
||||
year = self.request.query_params.get('year')
|
||||
if year:
|
||||
qs = qs.filter(year=year)
|
||||
return qs
|
||||
|
||||
def get_serializer_class(self):
|
||||
if self.action in ['create', 'update', 'partial_update']:
|
||||
return FertilizationPlanWriteSerializer
|
||||
return FertilizationPlanSerializer
|
||||
|
||||
@action(detail=True, methods=['get'])
|
||||
def pdf(self, request, pk=None):
|
||||
plan = self.get_object()
|
||||
entries = plan.entries.select_related('field', 'fertilizer').order_by(
|
||||
'field__display_order', 'field__id', 'fertilizer__name'
|
||||
)
|
||||
|
||||
# 圃場・肥料の一覧を整理
|
||||
fields_map = {}
|
||||
fertilizers_map = {}
|
||||
for entry in entries:
|
||||
fields_map[entry.field_id] = entry.field
|
||||
fertilizers_map[entry.fertilizer_id] = entry.fertilizer
|
||||
|
||||
fields = sorted(fields_map.values(), key=lambda f: (f.display_order, f.id))
|
||||
fertilizers = sorted(fertilizers_map.values(), key=lambda f: f.name)
|
||||
|
||||
# マトリクスデータ生成
|
||||
matrix = {}
|
||||
for entry in entries:
|
||||
matrix[(entry.field_id, entry.fertilizer_id)] = entry.bags
|
||||
|
||||
rows = []
|
||||
for field in fields:
|
||||
cells = [matrix.get((field.id, fert.id), '') for fert in fertilizers]
|
||||
total = sum(v for v in cells if v != '')
|
||||
rows.append({
|
||||
'field': field,
|
||||
'cells': cells,
|
||||
'total': total,
|
||||
})
|
||||
|
||||
# 肥料ごとの合計
|
||||
fert_totals = []
|
||||
for fert in fertilizers:
|
||||
total = sum(
|
||||
matrix.get((field.id, fert.id), Decimal('0'))
|
||||
for field in fields
|
||||
)
|
||||
fert_totals.append(total)
|
||||
|
||||
context = {
|
||||
'plan': plan,
|
||||
'fertilizers': fertilizers,
|
||||
'rows': rows,
|
||||
'fert_totals': fert_totals,
|
||||
'grand_total': sum(fert_totals),
|
||||
}
|
||||
html_string = render_to_string('fertilizer/pdf.html', context)
|
||||
pdf_file = HTML(string=html_string).write_pdf()
|
||||
response = HttpResponse(pdf_file, content_type='application/pdf')
|
||||
response['Content-Disposition'] = f'attachment; filename="fertilization_{plan.year}_{plan.id}.pdf"'
|
||||
return response
|
||||
|
||||
|
||||
class CandidateFieldsView(APIView):
|
||||
"""作付け計画から圃場候補を返す"""
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def get(self, request):
|
||||
year = request.query_params.get('year')
|
||||
variety_id = request.query_params.get('variety_id')
|
||||
if not year or not variety_id:
|
||||
return Response({'error': 'year と variety_id が必要です'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
|
||||
field_ids = Plan.objects.filter(
|
||||
year=year, variety_id=variety_id
|
||||
).values_list('field_id', flat=True)
|
||||
|
||||
fields = Field.objects.filter(id__in=field_ids).order_by('display_order', 'id')
|
||||
data = [
|
||||
{
|
||||
'id': f.id,
|
||||
'name': f.name,
|
||||
'area_tan': str(f.area_tan),
|
||||
'area_m2': f.area_m2,
|
||||
'group_name': f.group_name,
|
||||
}
|
||||
for f in fields
|
||||
]
|
||||
return Response(data)
|
||||
|
||||
|
||||
class CalculateView(APIView):
|
||||
"""自動計算（保存しない）"""
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def post(self, request):
|
||||
method = request.data.get('method') # 'nitrogen' | 'even' | 'per_tan'
|
||||
param = request.data.get('param') # 数値パラメータ
|
||||
fertilizer_id = request.data.get('fertilizer_id')
|
||||
field_ids = request.data.get('field_ids', [])
|
||||
|
||||
if not method or param is None or not field_ids:
|
||||
return Response({'error': 'method, param, field_ids が必要です'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
|
||||
try:
|
||||
param = Decimal(str(param))
|
||||
except InvalidOperation:
|
||||
return Response({'error': 'param は数値で指定してください'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
|
||||
fields = Field.objects.filter(id__in=field_ids)
|
||||
if not fields.exists():
|
||||
return Response({'error': '圃場が見つかりません'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
|
||||
results = []
|
||||
|
||||
if method == 'per_tan':
|
||||
# 反当袋数配分: S = Sa × A
|
||||
for field in fields:
|
||||
area = Decimal(str(field.area_tan))
|
||||
bags = (param * area).quantize(Decimal('0.01'))
|
||||
results.append({'field_id': field.id, 'bags': float(bags)})
|
||||
|
||||
elif method == 'even':
|
||||
# 在庫/指定数量均等配分: S = (SS / Sum(A)) × A
|
||||
total_area = sum(Decimal(str(f.area_tan)) for f in fields)
|
||||
if total_area == 0:
|
||||
return Response({'error': '圃場の面積が0です'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
for field in fields:
|
||||
area = Decimal(str(field.area_tan))
|
||||
bags = (param * area / total_area).quantize(Decimal('0.01'))
|
||||
results.append({'field_id': field.id, 'bags': float(bags)})
|
||||
|
||||
elif method == 'nitrogen':
|
||||
# 反当チッソ成分量配分: S = (Nr / (C × Nd/100)) × A
|
||||
if not fertilizer_id:
|
||||
return Response({'error': 'nitrogen 方式には fertilizer_id が必要です'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
try:
|
||||
fertilizer = Fertilizer.objects.get(id=fertilizer_id)
|
||||
except Fertilizer.DoesNotExist:
|
||||
return Response({'error': '肥料が見つかりません'}, status=status.HTTP_404_NOT_FOUND)
|
||||
if not fertilizer.capacity_kg or not fertilizer.nitrogen_pct:
|
||||
return Response(
|
||||
{'error': 'この肥料には1袋重量(kg)と窒素含有率(%)の登録が必要です'},
|
||||
status=status.HTTP_400_BAD_REQUEST
|
||||
)
|
||||
c = Decimal(str(fertilizer.capacity_kg))
|
||||
nd = Decimal(str(fertilizer.nitrogen_pct))
|
||||
# 1袋あたりの窒素量 (kg)
|
||||
nc = c * nd / Decimal('100')
|
||||
if nc == 0:
|
||||
return Response({'error': '窒素含有量が0のため計算できません'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
for field in fields:
|
||||
area = Decimal(str(field.area_tan))
|
||||
bags = (param / nc * area).quantize(Decimal('0.01'))
|
||||
results.append({'field_id': field.id, 'bags': float(bags)})
|
||||
|
||||
else:
|
||||
return Response({'error': 'method は nitrogen / even / per_tan のいずれかです'}, status=status.HTTP_400_BAD_REQUEST)
|
||||
|
||||
return Response(results)
|
||||
Reference in New Issue
Block a user