检查Django中选中的复选框的项目

Question

我正在处理视图。我正在尝试创建一个基于记录模型显示表单的html文件。在html文件中，我添加了将显示组中所有成员的代码。每个成员旁边都有一个复选框。在view.py文件中，我想通过每个成员，如果复选框被选中，我想创建一个新的transacition对象并将其保存到数据库，如果它实际上被检查。我得到一个错误，它看起来像这样...

错误：

KeyError at /23/addRecord/ 
'omar' 
Request Method: POST 
Request URL: http://127.0.0.1:8000/23/addRecord/ 
Django Version: 1.8.6 
Exception Type: KeyError 
Exception Value:  
'omar' 
Exception Location: C:\Users\OmarJandali\Desktop\opentab\opentab\tab\views.py in addRecord, line 237 
Python Executable: C:\Users\OmarJandali\AppData\Local\Programs\Python\Python36\python.exe 
Python Version: 3.6.1 
Python Path:  
['C:\\Users\\OmarJandali\\Desktop\\opentab\\opentab', 
'C:\\Users\\OmarJandali\\AppData\\Local\\Programs\\Python\\Python36\\python36.zip', 
'C:\\Users\\OmarJandali\\AppData\\Local\\Programs\\Python\\Python36\\DLLs', 
'C:\\Users\\OmarJandali\\AppData\\Local\\Programs\\Python\\Python36\\lib', 
'C:\\Users\\OmarJandali\\AppData\\Local\\Programs\\Python\\Python36', 
'C:\\Users\\OmarJandali\\AppData\\Local\\Programs\\Python\\Python36\\lib\\site-packages'] 
Server time: Mon, 3 Jul 2017 07:02:20 +0000 
Traceback Switch to copy-and-paste view 

C:\Users\OmarJandali\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\handlers\base.py in get_response 
           response = wrapped_callback(request, *callback_args, **callback_kwargs) ... 
▶ Local vars 
C:\Users\OmarJandali\Desktop\opentab\opentab\tab\views.py in addRecord 
          username = cd[member.user.username] ... 
▶ Local vars 
Request information 

GET 
No GET data 
POST 
Variable Value 
csrfmiddlewaretoken 
'vIg5KKWVNpoc2ijkwmBB9I28aDt7QOSA' 
split 
'2' 
omar  
'checked' 
hani  
'checked' 
submit 
'submit' 

这里是我现在所拥有的文件。

view.py

def addRecord(request, groupId): 
    # for the records, the user and group need to be provided to know what group 
    # this record is attached to and who created the record. 
    user = User.objects.get(username='omar') 
    group = Group.objects.get(id=groupId) 
    members = Member.objects.filter(group=groupId) 
    # the followin process is similar to the form validation for the group view. 
    if request.method == 'POST': 
     message = 'process' 
     form = AddRecordForm(request.POST) 
     if form.is_valid(): 
      cd = form.cleaned_data 
      split = cd['split'] 
      new_record = Record.objects.create(
       split = split, 
       status = 1, 
       group = group, 
       user = user, 
      ) 
      for member in members: 
      if member.user.username in request.GET: 
       new_transaction = Transaction.objects.create(
        amount = 0.00, 
        description = 'description', 
        group = group, 
        user = member, 
        record = new_record, 
       ) 
     return redirect('accounts') 
    else: 
     # the only tyhing that needed to be passed was the group to display the naem 
     # and the form that is going to be used and filled out by the user and submitted 
     form = AddRecordForm() 
     message = 'no processing' 
     params = { 
      'group':group, 
      'members':members, 
      'form':form, 
      'message':message, 
     } 
    return render(request, 'tabs/add_record.html', params) 

HTML文件：

{% extends "base.html" %} 

{% block content %} 
    <h2>add record to {{ group.name }}</h2> 
    {% if message %} 
    <p>{{message}}</p> 
    {% endif %} 
    <form action="." method="POST"> 
    {% csrf_token %} 
    {{ form.as_p }} 
    {% for member in members %} 
     {{ member.user.username }} 
     <input name="{{member.user.username}}" value="checked" type="checkbox"><br> 
    {% endfor %} 
    <input type="submit" name="submit" value="submit"> 
    </form> 
{% endblock %} 

models.py文件

class Record(models.Model): 
    split = models.SmallIntegerField(default=1) #user 
    count = models.IntegerField(default=1) 
    status = models.SmallIntegerField(choices=RECORD_STATUS_CHOICES, default=1) #server 
    group = models.ForeignKey(Group, default=1, on_delete=models.CASCADE) #server 
    user = models.ForeignKey(User, default=1, on_delete=models.CASCADE) #server 
    created = models.DateTimeField(auto_now_add=True) #server 

class Transaction(models.Model): 
    amount = models.DecimalField(decimal_places=2, max_digits=9,default=0.00) 
    description = models.CharField(max_length=250) 
    group = models.ForeignKey(Group, default=1, on_delete=models.CASCADE) 
    user = models.ForeignKey(User, default=1, on_delete=models.CASCADE) 
    record = models.ForeignKey(Record, default=1, on_delete=models.CASCADE) 
    created = models.DateTimeField(auto_now_add=True) 

---

我已经尝试做一些不同的事情，包括改变形式输入名称和值。我尝试了几种不同的方法来改变cd []的内容，以及如何检查它是否存在发生错误的地方。任何人都可以帮助我解决这个棘手的问题。

Answer 1

你会在request.GET中
而是做得到错误，

if member.user.username in request.POST: