django 简单文件上传

通过模型来处理上传的文件¶

如果想要在 FileField 上的 Model 保存文件，使用 ModelForm 会让这一过程变得简单。当调用 form.save() 时，文件对象将会被保存在对相应 FileField 的 upload_to 参数所指定的地方：

from django.http import HttpResponseRedirect
from django.shortcuts import render
from .forms import ModelFormWithFileField


def upload_file(request):
    if request.method == "POST":
        form = ModelFormWithFileField(request.POST, request.FILES)
        if form.is_valid():
            # file is saved
            form.save()
            return HttpResponseRedirect("/success/url/")
    else:
        form = ModelFormWithFileField()
    return render(request, "upload.html", {"form": form})

参考： https://docs.djangoproject.com/zh-hans/4.2/topics/http/file-uploads/

实例使用：

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@login_required

def upload_book(request):

    user = request.user

    if request.method == 'POST':

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

        if form.is_valid():

            obj = form.save(commit=False)

            uploaded_by = Account.objects.filter(email=user.email).first()

            obj.uploaded_by = uploaded_by;

            obj.save()

            return redirect('book_list')

    else:

        form = BookForm()

    return render(request, 'book/upload_book.html', {

        'upload_form' : form

        })

　　

model配置 

 

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class Book(models.Model):

    title = models.CharField(max_length=100, null=False, blank=False)

    author = models.CharField(max_length=100, null=False, blank=False)

    pdf = models.FileField(upload_to='files', null=False, blank=False)

    date_uploaded = models.DateTimeField(auto_now_add=True, verbose_name = "date uploaded")

    uploaded_by = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete = models.CASCADE)

    # slug = models.SlugField(blank=True, unique=True)

　form 配置

 

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from django import forms

from .models import Book

 

class BookForm(forms.ModelForm):

    class Meta:

        model = Book

        fields = ('title', 'author', 'pdf')