反转 '' 与参数 '('',)' 未找到。尝试了 1 种模式:['accConnect/setting/(?P<settings_pk>[0-9]+)$']

Reverse for '' with arguments '('',)' not found. 1 pattern(s) tried: ['accConnect/setting/(?P<settings_pk>[0-9]+)$']

我目前 运行 在尝试呈现模型表单时遇到上述错误。

我现在的表格是这样的:

Form.py:

class SettingUpdateForm(ModelForm):
    class Meta:
        model = SettingsClass
        fields = '__all__'

Models.py:

    Complex = models.CharField(choices=complex_list , max_length =  22 ,default='1' , unique=True)

    #Trial Balance Year To Date
    Trial_balance_Year_to_date= models.BooleanField(default = False)
    tbytd_Include_opening_balances=models.BooleanField(default = False)
    tbytd_Only_use_main_accounts=models.BooleanField(default = False)
    tbytd_Print_null_values=models.BooleanField(default = False)
    tbytd_Print_description=models.BooleanField(default = True)
    tbytd_Print_account=models.BooleanField(default = True)
    tbytd_Sort_by_account_name=models.BooleanField(default = True)

    #Trial Balance Monthly
    Trial_balance_Monthly=models.BooleanField(default = False)
    tbm_Only_use_main_accounts=models.BooleanField(default = False)
    tbm_Print_null_values=models.BooleanField(default = False)
    tbm_Print_description=models.BooleanField(default = True)
    tbm_Print_account=models.BooleanField(default = True)
    tbm_Sort_by_account_name=models.BooleanField(default = True)

当表单尝试呈现时,它会根据我的 views.py 给出以下错误:

完整的错误信息:

NoReverseMatch at /accConnect/setting/2
Reverse for 'viewSettings' with arguments '('',)' not found. 1 pattern(s) tried: ['accConnect/setting/(?P<settings_pk>[0-9]+)$']
Request Method: GET
Request URL:    http://localhost:8000/accConnect/setting/2
Django Version: 3.2
Exception Type: NoReverseMatch
Exception Value:    
Reverse for 'viewSettings' with arguments '('',)' not found. 1 pattern(s) tried: ['accConnect/setting/(?P<settings_pk>[0-9]+)$']
Exception Location: C:\Users\KylePOG\AppData\Local\Programs\Python\Python39\lib\site-packages\django\urls\resolvers.py, line 694, in _reverse_with_prefix
Python Executable:  C:\Users\KylePOG\AppData\Local\Programs\Python\Python39\python.exe
Python Version: 3.9.4
Python Path:    
['C:\Users\KylePOG\Documents\GMA Programming\accConnect',
 'C:\Users\KylePOG\AppData\Local\Programs\Python\Python39\python39.zip',
 'C:\Users\KylePOG\AppData\Local\Programs\Python\Python39\DLLs',
 'C:\Users\KylePOG\AppData\Local\Programs\Python\Python39\lib',
 'C:\Users\KylePOG\AppData\Local\Programs\Python\Python39',
 'C:\Users\KylePOG\AppData\Local\Programs\Python\Python39\lib\site-packages']
Server time:    Mon, 20 Sep 2021 06:35:19 +0000
Error during template rendering
In template C:\Users\KylePOG\Documents\GMA Programming\accConnect\main\templates\main\base.html, error at line 11

Reverse for 'viewSettings' with arguments '('',)' not found. 1 pattern(s) tried: ['accConnect/setting/(?P<settings_pk>[0-9]+)$']
1   <!DOCTYPE html>
2   <html lang="en">
3   <head>
4       <style type="text/css">
5         /* The sidebar menu */
6         .sidenav {
7           height: 100%; /* Full-height: remove this if you want "auto" height */
8           width: 160px; /* Set the width of the sidebar */
9           position: fixed; /* Fixed Sidebar (stay in place on scroll) */
10          z-index: 1; /* Stay on top */
11          top: 0; /* Stay at the top */
12          left: 0;
13          background-color: #111; /* Black */
14          overflow-x: hidden; /* Disable horizontal scroll */
15          padding-top: 20px;
16        }
17  
18        /* The navigation menu links */
19        .sidenav a {
20          padding: 6px 8px 6px 16px;
21          text-decoration: none;

Views.py:

def viewSettings(request,  settings_pk):
    setting = get_object_or_404(SettingsClass, pk=settings_pk)
    if request.method == 'GET':
        form = SettingUpdateForm(instance=setting)
        return render(request, 'main/viewSettings.html', {'setting': setting, 'form':form})
    else:
        form =  SettingUpdateForm(request.POST, instance=setting)
        if form.is_valid():
            form.save()
            return redirect('settingsHome')

    return render(request, 'main/viewSettings.html', {'setting': setting, 'form':form})

我试图用我的 HTML 文档中的设置...替换表格...,其中显示以下内容:

viewSetting.HTML

<form method="POST" action="{% url 'viewSettings' settings.pk %}">
{% csrf_token %}
<div class="container">
  <ul class='list-group'>
    <li class='list-group-item active'>{{ form.Trial_balance_Year_to_date }} Trial Balance Year To Date</li>
    <li class='list-group-item'>{{ form.tbytd_Include_opening_balances }} Include Opening Balances</li>
    <li class='list-group-item'>{{ form.tbytd_Only_use_main_accounts }} Only Use Main Accounts</li>
    <li class='list-group-item'>{{ form.tbytd_Print_null_values }} Print 0.00 Values</li>
    <li class='list-group-item'>{{ form.tbytd_Print_description }} Print Description</li>
    <li class='list-group-item'>{{ form.tbytd_Print_account }} Print Account</li>
    <li class='list-group-item'>{{ form.tbytd_Sort_by_account_name }} Sort By Account Name</li>
  </ul>
  <br>
  <ul class='list-group'>
    <li class='list-group-item active'>{{ form.Trial_balance_Monthly }} Trial Balance Monthly</li>
    <li class='list-group-item'>{{ form.tbm_Only_use_main_accounts }} Only Use Main Accounts</li>
    <li class='list-group-item'>{{ form.tbm_Print_null_values }} Print 0.00 Values</li>
    <li class='list-group-item'>{{ form.tbm_Print_description }} Print Description</li>
    <li class='list-group-item'>{{ form.tbm_Print_account }} Print Account</li>
    <li class='list-group-item'>{{ form.tbm_Sort_by_account_name }} Sort By Account Name</li>
  </ul>
</div>
<br>
<br>
<hr>
<div class="btn-update" style="padding-left: 1%">
<button type="submit" class='btn btn-primary'>Update</button>
<button type="delete" class="btn btn-danger">Delete</button>
</div>
</form>

Urls.py:

from django.contrib import admin
from django.conf.urls import url
from django.urls import path , include
from accounts import views as v
from main import views as views

urlpatterns = [
    path('admin/', admin.site.urls),

    # Accounts
    path('login/home/' , views.home , name = 'home'),
    path('', v.register , name='register'),
    path('' , include('django.contrib.auth.urls') , name = 'login'),

    #Trial Balance
    path('KyletrbSettings' , views.KyletrbSettings , name = 'KyletrbSettings'),
    path('Kyletrb', views.Kyletrb , name = 'Kyletrb'),
    path('KyletrbMonth', views.KyletrbMonth , name = 'KyletrbMonth'),
    path('pdf' , views.printToPdf, name='printToPdf'),
    path('XLS' , views.printToXLS , name='printToXLS'),
    path('trb_Monthly' , views.trb_Monthly , name='trb_Monthly'),

    #Settings
    path('settings', views.settingsHome , name='settingsHome'),
    path('ns' , views.newSetting , name='newSetting'),
    path('accConnect/setting/<int:settings_pk>', views.viewSettings, name='viewSettings' ),

]

我似乎找不到这可能是什么问题,我尝试删除表单标签的“操作”部分并呈现表单但是当“更新”时没有任何内容保存到数据库按钮被按下,页面没有按预期重定向

这是导致问题的代码

<form method="POST" action="{% url 'viewSettings' settings.pk %}">

在您的 viewsettings.html 模板中将 settings.pk 替换为 setting.pk

所以你应该有这个 <form method="POST" action="{% url 'viewSettings' setting.pk %}">

在您的 views.py 中,您将设置作为上下文中的对象传递,但在模板中您使用的是设置,因此出现错误

更新

要检查导致表单未提交的原因,您可以执行此操作

def viewSettings(request,  settings_pk):
setting = get_object_or_404(SettingsClass, pk=settings_pk)
if request.method == 'GET':
    form = SettingUpdateForm(instance=setting)
    return render(request, 'main/viewSettings.html', {'setting': setting, 'form':form})
else:
    form =  SettingUpdateForm(request.POST, instance=setting)
    if form.is_valid():
        form.save()
        return redirect('settingsHome')
    else: #add this to your code
         print(form.errors) 

return render(request, 'main/viewSettings.html', {'setting': setting, 'form':form})