Andrey Smakotin
30ee077963
Реализована полная система трансформации товаров (превращение одного товара в другой). Пример: белая гипсофила → крашеная гипсофила. Особенности реализации: - Резервирование входных товаров в статусе draft - FIFO списание входных товаров при проведении - Автоматический расчёт себестоимости выходных товаров - Возможность отмены как черновиков, так и проведённых трансформаций Модели (inventory/models.py): - Transformation: документ трансформации (draft/completed/cancelled) - TransformationInput: входные товары (списание) - TransformationOutput: выходные товары (оприходование) - Добавлен статус 'converted_to_transformation' в Reservation - Добавлен тип 'transformation' в DocumentCounter Бизнес-логика (inventory/services/transformation_service.py): - TransformationService с методами CRUD - Валидация наличия товаров - Автоматическая генерация номеров документов Сигналы (inventory/signals.py): - Автоматическое резервирование входных товаров - FIFO списание при проведении - Создание партий выходных товаров - Откат операций при отмене Интерфейс без Django Admin: - Список трансформаций (list.html) - Форма создания (form.html) - Детальный просмотр с добавлением товаров (detail.html) - Интеграция с компонентом поиска товаров - 8 views для полного CRUD + проведение/отмена Миграция: - 0003_alter_documentcounter_counter_type_and_more.py 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
238 lines
9.9 KiB
Python
238 lines
9.9 KiB
Python
"""
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Views для работы с трансформациями товаров (Transformation).
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"""
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from django.views.generic import ListView, CreateView, DetailView, View
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from django.contrib.auth.mixins import LoginRequiredMixin
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from django.urls import reverse
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from django.shortcuts import get_object_or_404, redirect
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from django.contrib import messages
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from django.http import JsonResponse
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from django.db import transaction
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from django.core.exceptions import ValidationError
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from inventory.models import Transformation, TransformationInput, TransformationOutput
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from inventory.forms import TransformationForm, TransformationInputForm, TransformationOutputForm
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from inventory.services.transformation_service import TransformationService
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class TransformationListView(LoginRequiredMixin, ListView):
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"""Список трансформаций товаров"""
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model = Transformation
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template_name = 'inventory/transformation/list.html'
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context_object_name = 'transformations'
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paginate_by = 20
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def get_queryset(self):
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return Transformation.objects.select_related(
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'warehouse', 'employee'
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).prefetch_related('inputs__product', 'outputs__product').order_by('-date')
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class TransformationCreateView(LoginRequiredMixin, CreateView):
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"""Создание трансформации"""
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model = Transformation
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form_class = TransformationForm
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template_name = 'inventory/transformation/form.html'
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def form_valid(self, form):
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transformation = TransformationService.create_transformation(
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warehouse=form.cleaned_data['warehouse'],
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comment=form.cleaned_data.get('comment'),
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employee=self.request.user
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)
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messages.success(self.request, f'Трансформация {transformation.document_number} создана')
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return redirect('inventory:transformation-detail', pk=transformation.pk)
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class TransformationDetailView(LoginRequiredMixin, DetailView):
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"""Детальный просмотр трансформации"""
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model = Transformation
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template_name = 'inventory/transformation/detail.html'
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context_object_name = 'transformation'
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def get_queryset(self):
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return Transformation.objects.select_related(
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'warehouse', 'employee'
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).prefetch_related('inputs__product', 'outputs__product')
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['input_form'] = TransformationInputForm(transformation=self.object)
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context['output_form'] = TransformationOutputForm(transformation=self.object)
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# Добавляем категории и теги для компонента поиска товаров
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from products.models import ProductCategory, ProductTag
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context['categories'] = ProductCategory.objects.filter(is_active=True).order_by('name')
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context['tags'] = ProductTag.objects.filter(is_active=True).order_by('name')
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return context
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class TransformationAddInputView(LoginRequiredMixin, View):
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"""Добавление входного товара в трансформацию"""
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@transaction.atomic
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def post(self, request, pk):
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transformation = get_object_or_404(Transformation, pk=pk)
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form = TransformationInputForm(request.POST, transformation=transformation)
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if form.is_valid():
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try:
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trans_input = TransformationService.add_input(
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transformation=transformation,
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product=form.cleaned_data['product'],
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quantity=form.cleaned_data['quantity']
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)
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({
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'success': True,
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'item_id': trans_input.id,
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'message': f'Добавлено: {trans_input.product.name}'
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})
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messages.success(request, f'Добавлено: {trans_input.product.name}')
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except ValidationError as e:
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({'success': False, 'error': str(e)}, status=400)
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messages.error(request, str(e))
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else:
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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errors = '; '.join([f"{k}: {v[0]}" for k, v in form.errors.items()])
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return JsonResponse({'success': False, 'error': errors}, status=400)
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for field, errors in form.errors.items():
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for error in errors:
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messages.error(request, f'{field}: {error}')
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return redirect('inventory:transformation-detail', pk=pk)
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class TransformationAddOutputView(LoginRequiredMixin, View):
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"""Добавление выходного товара в трансформацию"""
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@transaction.atomic
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def post(self, request, pk):
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transformation = get_object_or_404(Transformation, pk=pk)
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form = TransformationOutputForm(request.POST, transformation=transformation)
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if form.is_valid():
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try:
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trans_output = TransformationService.add_output(
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transformation=transformation,
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product=form.cleaned_data['product'],
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quantity=form.cleaned_data['quantity']
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)
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({
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'success': True,
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'item_id': trans_output.id,
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'message': f'Добавлено: {trans_output.product.name}'
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})
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messages.success(request, f'Добавлено: {trans_output.product.name}')
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except ValidationError as e:
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({'success': False, 'error': str(e)}, status=400)
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messages.error(request, str(e))
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else:
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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errors = '; '.join([f"{k}: {v[0]}" for k, v in form.errors.items()])
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return JsonResponse({'success': False, 'error': errors}, status=400)
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for field, errors in form.errors.items():
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for error in errors:
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messages.error(request, f'{field}: {error}')
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return redirect('inventory:transformation-detail', pk=pk)
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class TransformationRemoveInputView(LoginRequiredMixin, View):
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"""Удаление входного товара из трансформации"""
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@transaction.atomic
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def post(self, request, pk, item_pk):
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transformation = get_object_or_404(Transformation, pk=pk)
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trans_input = get_object_or_404(TransformationInput, pk=item_pk, transformation=transformation)
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try:
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product_name = trans_input.product.name
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TransformationService.remove_input(trans_input)
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({
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'success': True,
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'message': f'Удалено: {product_name}'
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})
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messages.success(request, f'Удалено: {product_name}')
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except ValidationError as e:
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({'success': False, 'error': str(e)}, status=400)
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messages.error(request, str(e))
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return redirect('inventory:transformation-detail', pk=pk)
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class TransformationRemoveOutputView(LoginRequiredMixin, View):
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"""Удаление выходного товара из трансформации"""
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@transaction.atomic
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def post(self, request, pk, item_pk):
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transformation = get_object_or_404(Transformation, pk=pk)
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trans_output = get_object_or_404(TransformationOutput, pk=item_pk, transformation=transformation)
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try:
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product_name = trans_output.product.name
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TransformationService.remove_output(trans_output)
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({
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'success': True,
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'message': f'Удалено: {product_name}'
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})
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messages.success(request, f'Удалено: {product_name}')
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except ValidationError as e:
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if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
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return JsonResponse({'success': False, 'error': str(e)}, status=400)
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messages.error(request, str(e))
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return redirect('inventory:transformation-detail', pk=pk)
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class TransformationConfirmView(LoginRequiredMixin, View):
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"""Проведение трансформации"""
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@transaction.atomic
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def post(self, request, pk):
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transformation = get_object_or_404(Transformation, pk=pk)
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try:
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TransformationService.confirm(transformation)
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messages.success(request, f'Трансформация {transformation.document_number} проведена')
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except ValidationError as e:
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messages.error(request, str(e))
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return redirect('inventory:transformation-detail', pk=pk)
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class TransformationCancelView(LoginRequiredMixin, View):
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"""Отмена трансформации"""
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@transaction.atomic
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def post(self, request, pk):
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transformation = get_object_or_404(Transformation, pk=pk)
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try:
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TransformationService.cancel(transformation)
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messages.success(request, f'Трансформация {transformation.document_number} отменена')
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except ValidationError as e:
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messages.error(request, str(e))
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return redirect('inventory:transformation-list')
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