單表操做之圖書管理系統

展現

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":
        # 獲取用戶提交的數據
        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")

鼠標放在添加書籍按鈕，瀏覽器左下角有一個地址

刪除

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"))

鼠標點擊最後第五本書籍，來到對應的編輯頁面，而且表單中有它的信息，將其修改

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),

]

補充

在建立書籍和修改書籍時，代碼中總要一個一個的獲取書籍信息，而後再一個一個的進行提交，非常麻煩。能夠先將獲取的數據轉成字典格式，而後再進行添加或修改