Question

我试图建立一个使用ImageField接受用户上传图像的webapp，但是我似乎无法弄清楚如何保存上传的图像。我的媒体文件夹为空，即使似乎没有任何错误。

经历了很多教程都没有用。我得到了基本概念，创建了一个表单，建立了模型，在settings.py中设置了媒体，在视图中处理了上传，并且正在使用图像上传表单获得一个工作视图，但是上传图像并不能保存。

settings.py

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

urls.py

urlpatterns = [
    path('embed/', embed, name = 'embed'),
    path('success', success, name = 'success'), 
]


if settings.DEBUG: 
        urlpatterns += static(settings.MEDIA_URL, 
                              document_root=settings.MEDIA_ROOT)

forms.py

class imguploadform(forms.ModelForm):
    class Meta:
        model = imgupload
        fields = ['title', 'image']

models.py

class imgupload(models.Model):
    title = models.CharField(max_length = 20)
    image = models.ImageField(upload_to="media/images/", default = None)

    def __str__(self):
        return self.title

views.py

def embed(request):
    if request.method == 'POST':
        form = imguploadform(request.POST, request.FILES)

        if form.is_valid():
            newimg = imgupload(title=request.POST['title'], image=request.FILES['image'])
            newimg.save()
            return redirect('success')

    else:
        form = imguploadform()

    return render(request, 'webapp/imgupload.html', {'form' : form})

def success(request):
    return HttpResponse("Successfully uploaded")

imgupload.html

<!DOCTYPE html> 
<html lang="en"> 
<head> 
    <meta charset="UTF-8"> 
    <title>Upload Image</title> 
</head> 
<body> 
    <form method = "post" enctype="multipart/form-data"> 
        {% csrf_token %} 
        {{ form.as_p }} 
        <button type="submit">Upload</button> 
    </form> 
</body> 
</html>

另一件事要注意，管理面板不会显示图像模型

Answer 1

以下在我的机器whoes os系统上工作的代码是ubuntu18，带有最新的Django和枕头

models.py

class Imgupload(models.Model):
    title = models.CharField(max_length=20)
    image = models.ImageField(upload_to="images/", default=None)

    def __str__(self):
        return self.title

views.py

def embed(request):
    if request.method == "POST":
        form = Imguploadform(request.POST, request.FILES)
        if form.is_valid():
            form.save()
            return redirect("success")
    else:
        form = Imguploadform()
    img = Imgupload.objects.last()
    return render(request, "webapp/imgupload.html", {"form": form, "img": img})


def success(request):
    return HttpResponse("Successfully uploaded")

imgupload.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Upload Image</title>
</head>
<body>
    <form method = "post" enctype="multipart/form-data">
        {% csrf_token %}
        {{ form.as_p }}
        <button type="submit">Upload</button>
    </form>

    {% if img %}
    Image uploaded latest:
    <img src="{{ img.image.url }}">
    {% endif %}
</body>
</html>

Django：保存通过ImageField上传的图像

1 个答案: