Python 在管理员批准Django中上载的文件之前限制上载

我是django的新手。我正在做一个用户可以上传图像的项目。但我想确保用户在管理员批准之前不能上传图像或文件。现在我该怎么做，已经为此准备好了模型，但是由于django的经验不足，我无法完成它，或者你可以说我没有任何线索，如果可以，现在请帮助我，我在这里给出一个非常简单的代码

这是上传图像的my forms.py

from django import forms

class DocumentForm(forms.Form):
    photo = forms.ImageField(
                      label='Select a file'
                     )

这是我的模特。派克

 from django.db import models
 from django.contrib.auth.models import User 

 class Photo(models.Model):
    name = models.CharField(max_length = 100)
    photo = models.ImageField(upload_to = 'photos', blank=False,null=True)
    approved = models.nullBooleanField()
    uploaded_time = models.DateTimeField(auto_now_add = True,auto_now = False)
    description = models.CharField(max_length = 80 , blank = False , null = True)
    approved_by = models.CharField(max_length = 100)
    user = models.ForeignKey(User)

在这里，我为approved创建了一个布尔字段

这是文件/图像上传的视图

def UserImageUpload(request):

    if request.method == 'POST':
        form = DocumentForm(request.POST,request.FILES)
        if form.is_valid():
        if approved:
        newdoc = Photo(photo = request.FILES['photo'],user = request.user)
        newdoc.save()
        else:

    else:
    form = DocumentForm()

    uploaded_image = Photo.objects.all()

    return render_to_response('myprofile/user_image_upload.html',{'uploaded_image':uploaded_image,'form':form},context_instance = RequestContext(request))

 {% extends 'base.html'%}
 {% block title%}User Image Upload {% endblock %}
 {%block content%}

    <form action="" method="post" enctype="multipart/form-data">
        {% csrf_token %}
        <p>{{ form.non_field_errors }}</p>
        <p>{{ form.photo.label_tag }} {{ form.photo.help_text }}</p>
        <p>
            {{ form.photo.errors }}
            {{ form.photo }}
        </p>
        <p><input type="submit" value="Upload" /></p>
</form>

 {%endblock%}

这是文件或图像上传的模板

def UserImageUpload(request):

    if request.method == 'POST':
        form = DocumentForm(request.POST,request.FILES)
        if form.is_valid():
        if approved:
        newdoc = Photo(photo = request.FILES['photo'],user = request.user)
        newdoc.save()
        else:

    else:
    form = DocumentForm()

    uploaded_image = Photo.objects.all()

    return render_to_response('myprofile/user_image_upload.html',{'uploaded_image':uploaded_image,'form':form},context_instance = RequestContext(request))

 {% extends 'base.html'%}
 {% block title%}User Image Upload {% endblock %}
 {%block content%}

    <form action="" method="post" enctype="multipart/form-data">
        {% csrf_token %}
        <p>{{ form.non_field_errors }}</p>
        <p>{{ form.photo.label_tag }} {{ form.photo.help_text }}</p>
        <p>
            {{ form.photo.errors }}
            {{ form.photo }}
        </p>
        <p><input type="submit" value="Upload" /></p>
</form>

 {%endblock%}

{%extends'base.html%}
{%block title%}用户图像上载{%endblock%}
{%block content%}
{%csrf_令牌%}
{{form.non_field_errors}}

{{form.photo.label_tag}{{{form.photo.help_text}}


{{form.photo.errors}
{{form.photo}


{%endblock%}

我认为应该是这样的： 1.用户上传图片，您将approved设置为false。 2.在“管理”页面上，您可以将“已批准”更改为“真”。 3.在现场显示图像之前，请检查图像是否已批准