姜戈问题

Question

我有一个 Django 应用程序，应该显示发票和客户。现在，由于某些原因，当我运行 Django 服务器时，由于某些原因，它只显示invoice_list 中的发票数据，但无法显示clients_list 中的客户数据。客户数据确实显示在另一个视图中，但不在invoice_details 视图中。

编辑：我似乎已经解决了一些问题。 client_list 中的客户端数据确实出现，但由于某种原因出现在错误的 url 中。我尝试尽可能简单地解释它。

urls

(r'^index/invoice_details/1 此页面显示客户详细信息。 (r'^index/invoice_details/2 此页面显示客户详细信息。 (r'^index/invoice_details/3 发票显示在此页面上。

现在我希望 r'^index/invoice_details/3 也显示 (r'^index/invoice_details/1 中写入的内容但因为两个数字不同，它会失败，

以下是一些可能有用的输出。

#models.py
Class Client(models.Model):
    company = models.CharField(max_length=80)
    first_name = models.CharField(max_length=80, blank=True, null=True)
    last_name = models.CharField(max_length=80, blank=True, null=True)
    address = models.CharField(max_length=250)
    city = models.CharField(max_length=100)
    country = models.CharField(max_length=120)
    postcode = models.CharField(max_length=7)
    telephone = models.CharField(max_length=20)
    email = models.EmailField()
    additional_info = models.TextField(blank=True, null=True)

    def __unicode__(self):
            return self.company 

class Invoice(models.Model):
    client = models.ForeignKey(Client)
    date = models.DateField()
    invoice_no = models.CharField(max_length=16)
    work_orders = models.ManyToManyField(Work_Order)
    contract_info = models.ForeignKey(Contract_Info)

    def __unicode__(self):
                return self.invoice_no


    # urls.py
    urlpatterns = patterns('',
       (r'^index/invoice/$', invoice_info),
       (r'^index/invoice_details/(?P<id>\d+)/$', invoice_details),
    )

    #views.py
    @login_required 
    def invoice_details(request, id=1):
            clients_list = Client.objects.filter(pk=id)
        invoices_list = Invoice.objects.filter(pk=id) 
        return render_to_response(('invoice_details.html
', locals()), {'clients_list': clients_list, 'invoices_list': invoices_list }, context_instance=RequestContext(request))

    @login_required 
    def clients_details(request, id=1):
       clients_list = Client.objects.filter(pk=id) 
       return render_to_response(('clients_details.html', locals()), {'clients_list':   clients_list}, context_instance=RequestContext(request))

#invoice_details.html
{% extends "base.html" %}

{% block content %}
<h2>Invoice Details</h2>
<div id="horizontalnav">
  <a href="/index/add_invoice">Add an Invoice</a>
  <a href="/index/work_orders">Add a Work Order</a>
  <a href="/index/add_payment">Add Payment</a>
</div>
<ul STYLE="border: 1px solid;float:left;padding:15px; width: 400px;">
<img src="{{ MEDIA_URL }}images/c2duo.png" border="0" STYLE="text-alignment:left">
<p STYLE="margin-left:340px; margin-top:0px; COLOR:blue; Font-family:ARIAL">INVOICE
  <div id="list">

     {% for invoice in invoices_list %}
       {{invoice.client}}
       <p style="text-align: right;">INVOICE # {{invoice.invoice_no}}<br/>
       {{invoice.contract_info}}<br/>
       {{invoice.date}}<br/>
       {% for invoice in invoice.work_orders.all %}
         {{invoice}}<br/>
       {% endfor %}
     {% endfor %}
     {% for clients in clients_list %}
       {{clients.company}}<br/>
       {{clients.postcode}}<br/>
     {% endfor %}

    </div>
</ul>
{% endblock %}

Answer 1

 clients_list = Client.objects.filter(pk=id)

id 是发票 ID。

编辑：（基于对问题的评论）

@login_required 
def invoice_details(request, id=1):
    invoices_list = Invoice.objects.filter(pk=id) 
    client = invoices_list[0].client
    return render_to_response(('invoice_details.html', 
      locals()), {'client': client, 
      'invoices_list': invoices_list }, 
      context_instance=RequestContext(request))

模板：取出客户端的for循环，放入：

   {{client.company}}<br/>
   {{client.postcode}}<br/>

Answer 2

您确定clients_list变量正在获取有效值吗？客户端和发票过滤器的过滤器（pk=id）是相同的。尝试

  print clients_list

在包含过滤器调用的行后面插入一个，看看它包含什么。

Answer 3

clients_list = Client.objects.filter(pk=id) 附近有奇怪的缩进