Question

我正在尝试创建一个视图类来处理新Person对象的创建。您可以通过以下链接在Github上访问我的代码：

https://github.com/DAkbari/FaceRecognitionDjangoWebApi

这是Person对象的定义

class Person(models.Model):
    firstName = models.CharField(max_length=200)
    lastName = models.CharField(max_length=200)
    faceEncode = models.CharField(max_length=3000)
    facePicture = models.FileField()
    lastLoginPicture = models.FileField()
    code = models.CharField(max_length=100)

我在UserForm中创建了类forms.py，以显示创建新Person对象所需的字段

from identify.models import Person
from django import forms


class UserForm(forms.ModelForm):

    class Meta:
        model = Person
        fields = ['firstName', 'lastName', 'code', 'facePicture']

下一步，我为UserForm创建了一个视图

class PersonCreate(View):
    form_class = UserForm
    template_name = 'identify/new_person_form.html'

    #display a blink form
    def get(self, request):
        form = self.form_class(None)
        return render(request, self.template_name, {'form': form})

        # process form data
    def post(self, request):
        form = self.form_class(request.POST)
        if form.is_valid():
            user = form.save(commit=False)
            # clean normalized data
            facePicture = form.cleaned_data['username']
            FName = form.cleaned_data['firstName']
            LName = form.cleaned_data['lastName']
            code = form.cleaned_data['code']
            user.save()

导航到结果视图并单击“提交”按钮时输入必填字段后，我选择的文件消失，表单对该字段提出了必填错误

如果我从facePicture中删除forms.UserForm字段，一切都会很好

new_person_form.html：

<div class="container-fluid">
    <div class="row">
        <div class="col-sm-12 col-md-7">
            <div class="panel panel-default">
                <div class="panel-body">
                    <h3>Create a new account</h3>
                    <form class="form-horizontal" action="{% url 
                         'identify:new' %}" method="post" 
                            enctype="multipart/form-data">
                        {% csrf_token %}
                        {% include 'identify/form-template.html' %}
                        <div class="form-group">
                            <div class="col-sm-offset-2 col-sm-10">
                                <button type="submit" class="btn btn- 
                                 success">Submit</button>

                            </div>
                        </div>
                    </form>
                    {% if errorMsg %}
                        <p style="color: red;">{{ errorMsg }}</p>
                    {% endif %}

                </div>
            </div>
        </div>
    </div>
</div>

form_template.html：

{% for field in form %}
    <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
            <span class="text-danger small">{{ field.errors }}</span>
        </div>
    <label class="control-label col-sm-2"> {{ field.label_tag }}</label>
    <div class="col-sm-10"> {{ field }}</div>
    </div>
{% endfor %}

Answer 1

初始化表单实例时您忘记了request.FILES：

form = self.form_class(request.POST, request.FILES)

在创建类视图以在Django中创建新对象时出现问题

1 个答案: