单表操作之图书管理系统

展示

def books(request):
    book_list = Book.objects.all()
    return render(request, "books.html", {"book_list": book_list})

添加

def addbook(request):
    
    if request.method == "POST":
        # 获取用户提交的数据
        title = request.POST.get("title")
        price = request.POST.get("price")
        pub_date = request.POST.get("pub_date")
        publish = request.POST.get("publish")
        book = Book.objects.create(title=title, price=price, pub_date=pub_date, publish=publish)
        return redirect(reverse("books"))
    else:
        return render(request, "addbook.html")

鼠标放在添加书籍按钮，浏览器左下角有一个地址

删除

def delbook(request, nid):
    Book.objects.get(pk=nid).delete()
    return redirect(reverse("books"))

修改

def update_book(request, nid):
    if request.method == 'GET':
        book = Book.objects.get(pk=nid)
        return render(request, 'update_book.html', locals())
    else:
        title = request.POST.get("title")
        price = request.POST.get("price")
        pub_date = request.POST.get("pub_date")
        publish = request.POST.get("publish")

        return redirect(reverse("books"))

鼠标点击最后第五本书籍，来到对应的编辑页面，并且表单中有它的信息，将其修改

URL配置

from app01 import views
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^books/$', views.books, name="books"),
    url(r'^books/add/$', views.addbook),
    url(r'^books/delete/(?P<nid>d+)$', views.delbook),
    url(r'^books/update/(d+)$', views.update_book),

]

补充

在创建书籍和修改书籍时，代码中总要一个一个的获取书籍信息，然后再一个一个的进行提交，很是麻烦。可以先将获取的数据转成字典格式，然后再进行添加或修改