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python - 如何显示电话簿的详细视图？

问题描述

我试图显示存储在电话簿中的联系人的详细视图。PhoneBook(id, name) 是我的模型之一，它是模型 Contact(id, first_name, last_name, phone_number, phone_book) 的外键。

在我的索引页面中，有一个打开电话簿的按钮。之后，我希望用户可以单击电话簿，然后向他们显示详细视图（first_name、last_name、phone_number）。

在 view.py 中，我有一个函数可以捕获所有电话簿，并通过 context(dict) 传递它。在我的模板中，我使用了一个 for 循环来遍历所有电话簿并打印它们。

我无法将页面定向到详细视图。如何获取用户点击的电话簿？以及如何将页面从 ./view 定向到 ./detail

# view.py

def view_phone_book(request):
    all_phone_books = PhoneBook.objects.all()

    context = {
        'all_phone_books': all_phone_books
    }

    return render(request, "CallCenter/view_phone_book.html", context)

def detailed_view_phone_book(request):
    all_contacts = Contact.objects.all().filter(phone_book=phone_book_user_clicked_on)
    context = {
        'all_contacts': all_contacts
    }
    return render(request, "CallCenter/detailed_view_phone_book.html", context)

# urls.py
urlpatterns = [
    path('', index, name="index"),
    path('create/', create_phone_book, name="create"),
    path('add/', add_to_phone_book, name="add"),
    path('view/', view_phone_book, name="view"),
    path('detail/', detailed_view_phone_book, name="detailed_view")
]

# models.py
class PhoneBook(models.Model):
    """
        Model to store customer to a phone book
    """

    name = models.CharField(max_length=10, blank=False)

    def __str__(self):
        return self.name

class Contact(models.Model):

    """
        Model to store customer to a phone book.
    """

    first_name = models.CharField(max_length=50, blank=False)
    last_name = models.CharField(max_length=50, blank=False)
    phone_number = models.CharField(max_length=13, blank=False, unique=True)
    phone_book = models.ForeignKey(PhoneBook, on_delete=models.CASCADE)

    def __str__(self):
        return self.phone_number

<!--view_phone_book.html-->
<table>
   <tr>
     <th>Phone Book</th>
   </tr>

   {% for phone_book in all_phone_books %}
     <tr>
       <form method="get" action="../detail/"><td><a href="">{{ phone_book }}</a> </td></form>
     </tr>

    {% endfor %}
</table>


<!--detailed_view_phone_book.html-->
<table>
<tr>
     <th>First Name</th>
     <th>Last Name</th>
     <th>Phone Number</th>
   </tr>
   {% for phone_detail in all_phone_detail %}
    <tr>
       <form>
           <td>{{ phone_detail.first_name }}</td>
           <td>{{ phone_detail.last_name }}</td>
           <td>{{ phone_detail.phone_number }}</td>
        </form>
            </tr>
    {% endfor %}
</table>

我无法从 ./view 转到 ./detail。另外，我怎么知道用户点击了哪个电话簿？

标签： pythonhtmldjangopython-3.x

解决方案

我想出了如何让它发挥作用，我正在回答它，以便如果有人陷入困境，它可以帮助自己。

# views.py 

def view_phone_book(request):
    all_phone_books = PhoneBook.objects.all()

    context = {
        'all_phone_books': all_phone_books
    }

    return render(request, "CallCenter/view_phone_book.html", context)

def detailed_view_phone_book(request, phone_book_id):
    try:
        all_contacts = Contact.objects.filter(pk=phone_book_id)
    except Contact.DoesNotExist:
        raise Http404("PhoneBook Does Not Exist!")
    context = {
        'all_contacts': all_contacts
    }
    return render(request, "CallCenter/detailed_view_phone_book.html", context)


#urls.py 

urlpatterns = [
    path('', index, name="index"),
    path('create/', create_phone_book, name="create"),
    path('add/', add_to_phone_book, name="add"),
    path('campaign/', create_campaign, name="create-campaign"),
    path('view/', view_phone_book, name="view-phone-book"),
    path('detail/<int:phone_book_id>', detailed_view_phone_book, name="detail-view-phone-book"),

<!--view_phone_book.html-->
<body>
    {% for phone_book in all_phone_books%}
        <a href="{% url 'detail-view-phone-book' phone_book.id%}">{{ phone_book }}</a>
        <br>
    {% endfor %}

<a href="{% url 'index' %}">Back To Home</a>
</body>


<!--detailed_view_phone_book.html-->
{% if all_contacts %}
        <table>
            <tr>
                <th>First Name</th>
                <th>Last Name</th>
                <th>Phone Number</th>
            </tr>
            {% for contact in all_contacts %}
                <tr>
                    <form>
                        <td>{{ contact.first_name }}</td>
                        <td>{{ contact.last_name }}</td>
                        <td>{{ contact.phone_number }}</td>
                    </form>
                </tr>
            {% endfor %}
        </table>
    {% endif %}


<a href="{% url 'index' %}">Back To Home</a>

我看了Brain 的 CS50 视频，这对我有帮助。我会建议你也这样做。他以对初学者友好的方式解释了这些概念。

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