无法将图像上传到Django Project，获取Form对象没有属性“保存” [英] Unable to upload image to Django Project, getting Form object has no attribute 'save'

问题描述

我正在尝试通过模板输入的文件上传图像文件。我已经按照所有说明操作，但是在附加文件并单击提交时出现此错误。

I am trying to upload an image file through a file input from a template. I have followed all the instructions but getting this error when attaching the file and clicking on submit.

AttributeError: 'PicUpForm' object has no attribute 'save'

，因此我的图像未上传到指定目录以及记录没有插入我的sqlitedb

and hence my image is not uploading to the specified directory as well as the record is not inserting into my sqlitedb

以下是我使用过的所有必要代码：

FOLLOWING ARE ALL THE NECESSARY CODES I HAVE USED:

视图.py

def add_image(request):
    form = PicUpForm()
    if request.method == "POST":
        form = PicUpForm(data=request.POST, files=request.FILES)
    if form.is_valid():
        form.save()
        return redirect("")
    else:
        return render(request, "sample.html", {"form": form})

forms.py

class PicUpForm(forms.Form):
    class Meta:
        model = PicUpClass
        fields = [model.picture]
    picture = forms.ImageField(label='File')

models.py

def upload_to(instance, filename):
    now = timezone_now()
    base, ext = os.path.splitext(filename)
    ext = ext.lower()
    return f"C:/Users/Aayush/ev_manage/face_detector/static/img/{now:%Y/%m/%Y%m%d%H%M%S}{ext}"



class PicUpClass(models.Model):
    picture = models.ImageField(_("picture"), upload_to=upload_to, blank=True, null=True)

sample.html

{% block content %}
{% load static %}
    <form method="post" action="/picup" enctype="multipart/form-data">
        {% csrf_token %}
        {{ form }}
        <button type="submit">submit</button>
    </form>
{% endblock %}

urls.py

...
path('picup', views.add_image, name='picup'),

我还根据需要在创建模型后运行了makemigrations和migration命令。请帮助我，因为我是Python的新手，非常重要，需要完成此功能

Also i have run the makemigrations and migrate commands after creating the model as required. Please help me as i am a rookie in Python and very importantly need to complete this feature

推荐答案

您的 PicUpForm 不是 ModelForm ，因此不会使用 Meta 。请注意，这些字段应该是字符串列表，因此您应该将表单重写为：

Your PicUpForm is not a ModelForm, hence it will not take the Meta into account at all. Note that the fields should be a list of strings, so you should rewrite the form to:

class PicUpForm(forms.ModelForm):
    class Meta:
        model = PicUpClass
        fields = ['picture']

请注意，在您看来，对于 redirect（..），您需要传递名称，因此：

Note that in your view, for the redirect(..) you need to pass the name of a view, so:

def add_image(request):
    if request.method == 'POST':
        form = PicUpForm(data=request.POST, files=request.FILES)
        if form.is_valid():
            form.save()
            return redirect('name-of-view')
    else:
        form = PicUpForm()
    return render(request, 'sample.html', {'form': form})

在这里，您需要替换 视图名称 ，带有视图的名称。

Here you need to replace name-of-view with the name of a view.

如果视图包含参数，则可以将其作为命名参数传递，例如，此处如果你的 视图具有一个 picture_id 参数（如果它具有另一个参数，那么您当然应该更改该参数的名称）：

If the view contains a parameter, you can pass this as a named parameter, for example here if your view has a picture_id parameter (if it has another parameter, then of course you should change the name of the parameter):

def add_image(request):
    if request.method == 'POST':
        form = PicUpForm(data=request.POST, files=request.FILES)
        if form.is_valid():
            picup = form.save()
            return redirect('name-of-view', picture_id=picup.pk)
    else:
        form = PicUpForm()
    return render(request, 'sample.html', {'form': form})

这篇关于无法将图像上传到Django Project，获取Form对象没有属性“保存”的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！