图片提交引发ValidationError

Question

当我提交 jpg 图像时，它会刷新并显示“需要此字段”验证错误，因此在我尝试打印的视图中（request.POST），它在控制台中显示 csrfmiddlewaretoken 和 pic，但字段验证被违反.请纠正我。

models.py

from django.db import models

class picture(models.Model):
    pic = models.ImageField(upload_to='documents/')

forms.py

from django import forms
from .models import picture

class pictureForm(forms.ModelForm):
    class Meta:
        model = picture
        fields = ['pic',]

views.py

from django.shortcuts import render,redirect
from .models import picture
from .forms import pictureForm
# Create your views here.
def pictureView(request):
    if request.method == 'POST':
        print(request.POST)
        form = pictureForm(request.POST)
        if form.is_valid():

            form.save()

            return redirect('/')
    else:
        form = pictureForm()
    return render(request,'home.html',{'form':form})

urls.py(APP级别的url)

from django.urls import path
from . import views

urlpatterns = [
    path('',views.pictureView, name = 'home')

]

urls.py(目录级url)

from django.contrib import admin
from django.urls import path,include
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
    path('admin/', admin.site.urls),
    path('',include('post.urls')),
]
if settings.DEBUG:
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

媒体文件

MEDIA_URL ='/media/'
MEDIA_ROOT = os.path.join(BASE_DIR,'media')

模板

<form method="post">
    {% csrf_token %}
    {{form.as_p}}
    <input value="submit" type="submit">
</form>

Answer 1

基于文档：uploaded-files-with-a-model

你应该初始化你的表单：

form = pictureForm(request.POST, request.FILES)

在你需要的模板中添加enctype="multipart/form-data"

<form method="post" enctype="multipart/form-data">
    {% csrf_token %}
    {{form.as_p}}
    <input value="submit" type="submit">
</form>