当我尝试从管理员向数据库中添加一些数据时，我收到 NoReverseMatch 错误

问题描述

这里我没有使用任何管理模板。我正在使用默认的管理模板。我怎样才能反转这个网址？

我得到的错误：

noreverseMatch at /admin/machine/module/add/
Reverse for 'machine_module_change' with arguments '('',)' not found. 1 pattern(s) tried: ['admin/machine/module/(?P<object_id>.+)/change/$']
Request Method: POST
Request URL:    http://localhost:8080/admin/machine/module/add/
Django Version: 3.0.8
Exception Type: noreverseMatch
Exception Value:    
Reverse for 'machine_module_change' with arguments '('',)' not found. 1 pattern(s) tried: ['admin/machine/module/(?P<object_id>.+)/change/$']
Python Version: 3.7.7
Python Path:    
['C:\\Users\\Administrator\\Documents\\CheckMeOut\\checkmeout','C:\\Users\\Administrator\\AppData\\Local\\Programs\\Python\\python37\\python37.zip','C:\\Users\\Administrator\\AppData\\Local\\Programs\\Python\\python37\\DLLs','C:\\Users\\Administrator\\AppData\\Local\\Programs\\Python\\python37\\lib','C:\\Users\\Administrator\\AppData\\Local\\Programs\\Python\\python37','C:\\Users\\Administrator\\AppData\\Roaming\\Python\\python37\\site-packages','C:\\Users\\Administrator\\AppData\\Local\\Programs\\Python\\python37\\lib\\site-packages','C:/Users/Administrator/Documents/CheckMeOut/checkmeout','C:/Users/Administrator/Documents/CheckMeOut/checkmeout/checkmeout']
Server time:    Tue,2 Mar 2021 15:21:42 +0530

urls.py

from django.contrib import admin    
from django.urls import path,include    
from django.conf import settings    
from django.conf.urls.static import static    
from django.urls import reverse

urlpatterns = [    
    path('',include('main.urls')),path('equipment/',include('equipment.urls')),path('machine/',include('machine.urls')),path('admin/',admin.site.urls),] + static(settings.MEDIA_URL,document_root = settings.MEDIA_ROOT)

解决方法

我在 admin.py 中做了，我解决了这个问题。

更改代码：

@admin.register(Module)
class ModuleAdmin(admin.ModelAdmin):
    # fieldsets = (
    #     ('Information',{
    #         'fields': ('name','model','serialNumber','slot')
    #     }),# )
    search_fields = ['name','serialNumber']
    list_display = ('name','slot')
    list_per_page = 15

这里我只是评论了这些字段集..所以它解决了这个问题。请向我解释这是怎么发生的？