Question

我想为俱乐部活动注册和检查页面制作一个页面。所以在我检查页面中的学生之后，我想要显示所有学生的姓名和他们的'atclub' - 该学生将加入。

但显示列表存在一些问题。

我做了一个'俱乐部'课程和几个实例。然后我把学生作为俱乐部的外键。像这样。

在models.py

中

class Club(models.Model):
    club = models.CharField(max_length=30)
    def __str__(self):
        return self.club
    #동아리

class Student(models.Model):
    student = models.CharField(max_length=30)
    clubs = models.ManyToManyField(Club, related_name='inclubs')
    class_s = models.ForeignKey(Class, on_delete=models.CASCADE)
    isfilled = models.BooleanField(default=False)
    atclub = models.ForeignKey(Club, on_delete=models.CASCADE) #활동 동아리

    def __str__(self):
        return self.student

我想让哪位俱乐部学生参与其中。所以我写了，

在我的results_view.html

中

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>동아리 신청 확인</title>
</head>
<body>
<ul>
    {% for student in a %}
    <div style="text-align:center">
    <li>{{student.student}}--{{student.atclub}}</li>
    </div>
    {% endfor %}
</ul>
<a href="{% url 'club:index'%}">메인으로 돌아가기</a>
</body>
</html>

这是我的views.py

def register(request, club_id):
    club = get_object_or_404(Club, pk=club_id)
    error_message = None

    if request.method == 'POST':
         students = request.POST.getlist('students[]')

         if students:
             for studentid in students:
                 studentss = get_object_or_404(Student, pk=studentid)
                 studentss.atclub = club
                 studentss.save()
                 return HttpResponseRedirect(reverse('club:results'))

         else:
             error_message = "학생을 선택하지 않았습니다."

    context = {'club':club,'error_message':error_message,}


    return render(request, 'club/detail.html', context)

def results(request):
    a = Student.objects.all()
    return render(request, 'club/results.html', {'a':a})

错误消息

ValueError at /club/results/
invalid literal for int() with base 10: 'CREATOR'
Request Method: GET
Request URL:    http://127.0.0.1:8000/club/results/
Django Version: 2.0.5
Exception Type: ValueError
Exception Value:    
invalid literal for int() with base 10: 'CREATOR'
Exception Location: C:\anaconda3\lib\site-packages\django\db\models\fields\__init__.py in get_prep_value, line 947
Python Executable:  C:\anaconda3\python.exe
Python Version: 3.6.4
Python Path:    
['C:\\Users\\김예지\\GSAv2',
 'C:\\anaconda3\\python36.zip',
 'C:\\anaconda3\\DLLs',
 'C:\\anaconda3\\lib',
 'C:\\anaconda3',
 'C:\\anaconda3\\lib\\site-packages',
 'C:\\anaconda3\\lib\\site-packages\\win32',
 'C:\\anaconda3\\lib\\site-packages\\win32\\lib',
 'C:\\anaconda3\\lib\\site-packages\\Pythonwin']
Server time:    Tue, 12 Jun 2018 12:11:11 +0000
Error during template rendering
In template C:\Users\김예지\GSAv2\club\templates\club\results.html, error at line 11

invalid literal for int() with base 10: 'CREATOR'

    1   <!DOCTYPE html>
2   <html lang="en">
3   <head>
4       <meta charset="UTF-8">
5       <title>동아리 신청 확인</title>
6   </head>
7   <body>
8   <ul>
9       {% for student in a %}
10      <div style="text-align:center">
11      <li>{{student.student}}--{{student.atclub}}</li>
12      </div>
13      {% endfor %}
14  </ul>
15  <a href="{% url 'club:index'%}">메인으로 돌아가기</a>
16  </body>
17  </html>
18  
19  <!--
20  값을 출력하는 부분이다.
21  -->
Traceback Switch to copy-and-paste view
C:\anaconda3\lib\site-packages\django\template\base.py in _resolve_lookup
                    current = current[bit] ...
▶ Local vars
During handling of the above exception ('Student' object is not subscriptable), another exception occurred:
C:\anaconda3\lib\site-packages\django\db\models\fields\related_descriptors.py in __get__
            rel_obj = self.field.get_cached_value(instance) ...
▶ Local vars
C:\anaconda3\lib\site-packages\django\db\models\fields\mixins.py in get_cached_value
            return instance._state.fields_cache[cache_name] ...
▶ Local vars
During handling of the above exception ('atclub'), another exception occurred:
C:\anaconda3\lib\site-packages\django\core\handlers\exception.py in inner
            response = get_response(request) ...
▶ Local vars
C:\anaconda3\lib\site-packages\django\core\handlers\base.py in _get_response
                response = self.process_exception_by_middleware(e, request) ...
▶ Local vars
C:\anaconda3\lib\site-packages\django\core\handlers\base.py in _get_response
                response = wrapped_callback(request, *callback_args, **callback_kwargs) ...
▶ Local vars
C:\Users\김예지\GSAv2\club\views.py in results
    **return render(request, 'club/results.html', {'a':a}) ...**
▶ Local vars

a   
<QuerySet [<Student: 1101 AAA>, <Student: 1102 BBB>, <Student: 1103 CCC>, <Student: 1104 DDD>, <Student: 1105 EEE>, <Student: 1201 aaa>, <Student: 1202  bbb>, <Student: 1203 ccc>, <Student: 1204 ddd>, <Student: 1205 eee>]>
request 
<WSGIRequest: GET '/club/results/'>

我该如何解决这个错误？请帮帮我！ :(：）

如何使用基数10来解决'int（）的无效文字：'（club_name）'

0 个答案: