# Dica 26 - Paginação e Breadcrumb [![](/files/-MfuAP1e7W4erW9hf6Ic)](https://youtu.be/wuTJQSwF9gw) **Importante:** remova a `\` no meio das tags. ![](/files/5yQAAuqmpHdOp0r1qaxa) ## Paginação Edite `product/views.py` ```python # from django.views.generic import ListView # class ProductListView(ListView): # model = Product # paginate_by = 10 ``` ```python from django.core.paginator import Paginator def product_list(request): template_name = 'product/product_list.html' object_list = Product.objects.all() search = request.GET.get('search') ... # https://docs.djangoproject.com/en/4.1/topics/pagination/#using-paginator-in-a-view-function items_per_page = 10 paginator = Paginator(object_list, items_per_page) page_number = request.GET.get('page') page_obj = paginator.get_page(page_number) context = { 'page_obj': page_obj, 'items_count': page_obj.object_list.count(), } return render(request, template_name, context) ``` ## Botões da Paginação Edite `product/includes/navigation_buttons.html` ```html
{\% if page_obj.has_previous %} ``` O `&search={{ request.GET.search }}` mantém a **busca paginada**. ```html
{\% if page_obj.has_previous %} Anterior {\% endif %} {\% if page_obj.has_next %} Próximo {\% endif %}
``` ## Arruma o contador de itens ```html
{\% if page_obj.has_previous %} {\% endif %} {\% if page_obj.has_next %} {\% endif %} Página {{ page_obj.number }} de {{ page_obj.paginator.num_pages }} - Mostrando {{ items_count }} de {{ page_obj.paginator.count }} items
``` ### Move os arquivos para a pasta `core` ``` mv backend/product/templates/product/includes/navigation_buttons.html backend/core/templates/includes/ mv backend/product/templates/product/includes/search.html backend/core/templates/includes/ ``` Edite `product_list.html` ```html {\% include "includes/search.html" %} {\% include "includes/navigation_buttons.html" %} ``` ## breadcrumb ``` mv backend/product/templates/product/includes/breadcrumb.html backend/core/templates/includes/ ``` Edite `product_list.html`, `product_detail.html` e `product_form.html` ```html {\% include "includes/breadcrumb.html" %} ``` Edite `product/models.py` ```python class Product(TimeStampedModel): ... def list_url(self): return reverse_lazy('product:product_list') @property def verbose_name(self): return self._meta.verbose_name @property def verbose_name_plural(self): return self._meta.verbose_name_plural ``` Edite `product/views.py` ```python def product_create(request): template_name = 'product/product_form.html' form = ProductForm(request.POST or None) if request.method == 'POST' and form.is_valid(): form.save() return redirect('product:product_list') verbose_name_plural = form.instance._meta.verbose_name_plural context = { 'form': form, 'verbose_name_plural': verbose_name_plural } return render(request, template_name, context) ``` Edite core/includes/breadcrumb.html ```html ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.dicas-de-django.com.br/092-26-paginacao-breadcrumb.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.