250 lines
10 KiB
Python
250 lines
10 KiB
Python
"""
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CRUD представления для комплектов товаров (ProductKit).
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"""
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from django.contrib import messages
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from django.contrib.auth.mixins import LoginRequiredMixin, PermissionRequiredMixin
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from django.views.generic import ListView, CreateView, DetailView, UpdateView, DeleteView
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from django.urls import reverse_lazy
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from django.shortcuts import redirect
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from django.db import transaction
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from ..models import ProductKit, ProductCategory, ProductTag, ProductKitPhoto
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from ..forms import ProductKitForm, KitItemFormSetCreate, KitItemFormSetUpdate
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from .utils import handle_photos
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class ProductKitListView(LoginRequiredMixin, PermissionRequiredMixin, ListView):
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model = ProductKit
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template_name = 'products/productkit_list.html'
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context_object_name = 'kits'
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permission_required = 'products.view_productkit'
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paginate_by = 10
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def get_queryset(self):
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queryset = super().get_queryset()
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queryset = queryset.prefetch_related('categories', 'photos', 'kit_items', 'tags')
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# Поиск по названию
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search_query = self.request.GET.get('search')
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if search_query:
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queryset = queryset.filter(name__icontains=search_query)
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# Фильтр по категории
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category_id = self.request.GET.get('category')
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if category_id:
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queryset = queryset.filter(categories__id=category_id)
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# Фильтр по статусу
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is_active = self.request.GET.get('is_active')
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if is_active == '1':
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queryset = queryset.filter(is_active=True)
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elif is_active == '0':
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queryset = queryset.filter(is_active=False)
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return queryset.order_by('-created_at')
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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# Данные для фильтров
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context['filters'] = {
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'categories': ProductCategory.objects.filter(is_active=True),
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'tags': ProductTag.objects.all(),
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'current': {
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'search': self.request.GET.get('search', ''),
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'category': self.request.GET.get('category', ''),
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'is_active': self.request.GET.get('is_active', ''),
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'tags': self.request.GET.getlist('tags'),
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}
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}
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# Кнопки действий
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action_buttons = []
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if self.request.user.has_perm('products.add_productkit'):
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action_buttons.append({
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'url': reverse_lazy('products:productkit-create'),
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'text': 'Создать комплект',
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'class': 'btn-primary',
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'icon': 'plus-circle'
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})
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action_buttons.append({
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'url': reverse_lazy('products:product-list'),
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'text': 'К товарам',
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'class': 'btn-outline-primary',
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'icon': 'box'
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})
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context['action_buttons'] = action_buttons
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return context
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class ProductKitCreateView(LoginRequiredMixin, PermissionRequiredMixin, CreateView):
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"""
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View для создания нового комплекта с компонентами.
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"""
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model = ProductKit
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form_class = ProductKitForm
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template_name = 'products/productkit_form.html'
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permission_required = 'products.add_productkit'
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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if self.request.POST:
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context['kititem_formset'] = KitItemFormSetCreate(self.request.POST, instance=self.object)
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else:
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context['kititem_formset'] = KitItemFormSetCreate(instance=self.object)
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return context
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def form_valid(self, form):
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# Получаем формсет из POST
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kititem_formset = KitItemFormSetCreate(self.request.POST, instance=self.object)
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# Проверяем валидность формсета
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if kititem_formset.is_valid():
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try:
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with transaction.atomic():
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# Сохраняем основную форму
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self.object = form.save()
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# Сохраняем компоненты
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kititem_formset.instance = self.object
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kititem_formset.save()
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# Обработка фотографий
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handle_photos(self.request, self.object, ProductKitPhoto, 'kit')
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messages.success(self.request, f'Комплект "{self.object.name}" успешно создан!')
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# Проверяем, какую кнопку нажали
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if self.request.POST.get('action') == 'continue':
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return redirect('products:productkit-update', pk=self.object.pk)
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else:
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return redirect('products:productkit-list')
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except Exception as e:
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messages.error(self.request, f'Ошибка при сохранении: {str(e)}')
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return self.form_invalid(form)
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else:
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# Если формсет невалиден, показываем форму с ошибками
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messages.error(self.request, 'Пожалуйста, исправьте ошибки в компонентах комплекта.')
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return self.form_invalid(form)
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def form_invalid(self, form):
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# Получаем формсет для отображения ошибок
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context = self.get_context_data(form=form)
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return self.render_to_response(context)
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def get_success_url(self):
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return reverse_lazy('products:productkit-list')
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class ProductKitUpdateView(LoginRequiredMixin, PermissionRequiredMixin, UpdateView):
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"""
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View для редактирования существующего комплекта.
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"""
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model = ProductKit
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form_class = ProductKitForm
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template_name = 'products/productkit_form.html'
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permission_required = 'products.change_productkit'
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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if self.request.POST:
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context['kititem_formset'] = KitItemFormSetUpdate(self.request.POST, instance=self.object)
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else:
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context['kititem_formset'] = KitItemFormSetUpdate(instance=self.object)
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context['productkit_photos'] = self.object.photos.all().order_by('order', 'created_at')
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context['photos_count'] = self.object.photos.count()
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return context
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def form_valid(self, form):
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# Получаем формсет из POST
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kititem_formset = KitItemFormSetUpdate(self.request.POST, instance=self.object)
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# Проверяем валидность формсета
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if kititem_formset.is_valid():
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try:
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with transaction.atomic():
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# Сохраняем основную форму
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self.object = form.save()
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# Сохраняем компоненты
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kititem_formset.instance = self.object
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kititem_formset.save()
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# Обработка фотографий
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handle_photos(self.request, self.object, ProductKitPhoto, 'kit')
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messages.success(self.request, f'Комплект "{self.object.name}" успешно обновлен!')
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# Проверяем, какую кнопку нажали
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if self.request.POST.get('action') == 'continue':
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return redirect('products:productkit-update', pk=self.object.pk)
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else:
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return redirect('products:productkit-list')
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except Exception as e:
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messages.error(self.request, f'Ошибка при сохранении: {str(e)}')
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return self.form_invalid(form)
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else:
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# Если формсет невалиден, показываем форму с ошибками
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messages.error(self.request, 'Пожалуйста, исправьте ошибки в компонентах комплекта.')
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return self.form_invalid(form)
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def form_invalid(self, form):
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# Получаем формсет для отображения ошибок
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context = self.get_context_data(form=form)
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return self.render_to_response(context)
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def get_success_url(self):
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return reverse_lazy('products:productkit-list')
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class ProductKitDetailView(LoginRequiredMixin, PermissionRequiredMixin, DetailView):
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"""
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View для просмотра деталей комплекта.
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Показывает все компоненты, цены, фотографии.
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"""
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model = ProductKit
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template_name = 'products/productkit_detail.html'
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context_object_name = 'kit'
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permission_required = 'products.view_productkit'
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def get_queryset(self):
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# Prefetch для оптимизации запросов
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return super().get_queryset().prefetch_related(
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'photos',
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'kit_items__product',
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'kit_items__variant_group',
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'tags'
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)
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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# Добавляем фотографии комплекта в контекст
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context['productkit_photos'] = self.object.photos.all().order_by('order', 'created_at')
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context['photos_count'] = self.object.photos.count()
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# Добавляем компоненты
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context['kit_items'] = self.object.kit_items.all().select_related('product', 'variant_group')
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return context
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class ProductKitDeleteView(LoginRequiredMixin, PermissionRequiredMixin, DeleteView):
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"""
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View для удаления комплекта.
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"""
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model = ProductKit
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template_name = 'products/productkit_confirm_delete.html'
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context_object_name = 'kit'
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permission_required = 'products.delete_productkit'
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def get_success_url(self):
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messages.success(self.request, f'Комплект "{self.object.name}" успешно удален!')
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return reverse_lazy('products:productkit-list')
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