Django django-smart-select：在管理站點添加數據期間獲取TemplateSyntaxError

Question

我是Django的新手。我想試試這個應用程序django-smart-selects。我希望通過在管理網站的「訂單」表單中選擇合適的「客戶」來自動填充「客戶」地址。

所以我定義了下面

models.py

from smart_selects.db_fields import ChainedForeignKey 
from django.db import models 

# Adress model 
class Adresse (models.Model): 
    strasse = models.CharField(max_length=50) 
    plz = models.IntegerField(max_length=5) 
    ort = models.CharField(max_length=50) 

    def __unicode__(self): 
     return self.strasse 

# Customer model 
class Customer (models.Model): 
    name = models.CharField(max_length=50) 
    adresse = models.ForeignKey(Adresse) 

    def __unicode__(self): 
     return self.name 

# Order model 
class Order (models.Model): 
    name = models.CharField(max_length=50) 
    delivery_time = models.DateTimeField() 
    created_at = models.DateTimeField(auto_now_add=True) 
    kunde = models.ForeignKey(Customer, related_name="Kunde") 
    adresse = ChainedForeignKey(
         Customer, 
         chained_field="kunde", 
         chained_model_field="strasse", 
         show_all=False, 
         auto_choose=True 
        ) 

    class Meta: 
     db_table = 'order' 
     ordering = ['-created_at'] 

    def __unicode__(self): 
     return self.name 

admin.py

from django.contrib import admin 
from customer_order.test_app.models import Adresse, Customer, Order 

class AdresseAdmin(admin.ModelAdmin): 
    list_display = ('strasse', 'plz', 'ort',) 

class CustomerAdmin(admin.ModelAdmin): 
    list_display = ('name', 'adresse',) 
    list_per_page = 50 

class OrdersAdmin(admin.ModelAdmin): 
    list_display = ('name', 'delivery_time', 'created_at', 'kunde', 'adresse',) 
    list_display_links = ('name',) 
    list_per_page = 50 
    ordering = ['-created_at'] 

admin.site.register(Adresse, AdresseAdmin) 
admin.site.register(Customer, CustomerAdmin)  
admin.site.register(Order, OrdersAdmin) 

現在，當我想第一個條目添加到通過管理添加按鈕「訂購」表，我得到了以下的e RROR：

Request Method: GET 
Request URL: http://127.0.0.1:8000/admin/test_app/order/add/ 
Exception Type: TemplateSyntaxError 
Exception Value: 

Caught an exception while rendering: Reverse for 'chained_filter' with arguments '()' and keyword arguments '{'field': 'strasse', 'app': 'test_app', 'model': 'Customer', 'value': '1'}' not found. 

Original Traceback (most recent call last): 
    File "C:\Python25\lib\site-packages\django\template\debug.py", line 71, in render_node 
    result = node.render(context) 
    File "C:\Python25\lib\site-packages\django\template\debug.py", line 87, in render 
    output = force_unicode(self.filter_expression.resolve(context)) 
    File "C:\Python25\lib\site-packages\django\utils\encoding.py", line 71, in force_unicode 
    s = unicode(s) 
    File "C:\Python25\lib\site-packages\django\forms\forms.py", line 356, in __unicode__ 
    return self.as_widget() 
    File "C:\Python25\lib\site-packages\django\forms\forms.py", line 391, in as_widget 
    return widget.render(name, data, attrs=attrs) 
    File "C:\Python25\lib\site-packages\django\contrib\admin\widgets.py", line 231, in render 
    output = [self.widget.render(name, value, *args, **kwargs)] 
    File "H:\customer_order\smart_selects\widgets.py", line 36, in render 
    url = "/".join(reverse("chained_filter", kwargs={'app':self.app_name,'model':self.model_name,'field':self.model_field,'value':"1"}).split("/")[:-2]) 
    File "C:\Python25\lib\site-packages\django\core\urlresolvers.py", line 350, in reverse 
    *args, **kwargs))) 
    File "C:\Python25\lib\site-packages\django\core\urlresolvers.py", line 300, in reverse 
    "arguments '%s' not found." % (lookup_view_s, args, kwargs)) 
NoReverseMatch: Reverse for 'chained_filter' with arguments '()' and keyword arguments '{'field': 'strasse', 'app': 'test_app', 'model': 'Customer', 'value': '1'}' not found. 

Exception Location: C:\Python25\lib\site-packages\django\template\debug.py in render_node, line 81 
Python Executable: C:\Python25\python.exe 
Python Version: 2.5.0 

Answer 1

你做完第2步，安裝說明 - 添加以下到您的urls.py？

url(r'^chaining/', include('smart_selects.urls')),