uploading a file using django

Question

I am developing an application with django for uploading a file on the server. I have defined a form and a model in forms.py and models.py files separately as below(respectively):

from django import forms

class DocumentForm(forms.Form):
    docfile = forms.FileField(
        label=''
    )

and in models.py:

from django.db import models

# Create your models here.

    class Document(models.Model):
        docfile = models.FileField(upload_to='targetdir')

in my HTML file and my form is:

    <form  class="myclass" action="submit" method="post">
    {% csrf_token %}

    <p>
                {{ form.docfile.errors }}
                {{ form.docfile }}
</p>


        <br />
            <input font-size="50px" style="zoom:1.5"  class="myclass" dir="rtl" type="submit" value="upload"  id="button" class="top-menu" onclick="pythonhandler()" />

now, whenever I submit my form and I wanna to receive my uploaded file on the server via below codes, I got "

raise MultiValueDictKeyError(repr(key))
MultiValueDictKeyError: "'docfile'""

error. my views.py file:

def pythonhandler(request):

    if request.method == 'POST':
        try:
                    data = request.FILES.get('docfile') 
                    with open(os.getcwd()+'/mydirectory/'+request.FILES['docfile'].name, 'wb+') as destination:
                        for chunk in request.FILES['docfile'].chunks():
                            destination.write(chunk)

I did the mentioned steps in this , this and this question, but I receive this error again!

Please can you be more specific about your html form and views.py? Did you read this: docs.djangoproject.com/en/1.11/topics/http/file-uploads? Maybe it could be useful. — e.arbitrio
– e.arbitrio, Commented May 3, 2017 at 14:48
I edited my question. I have read your mentioned link and every thing I think is such as that's example. but I have no idea about the error. — Stateless
– Stateless, Commented May 3, 2017 at 15:14
Note that request.FILES will only contain data if the request method was POST and the <form> that posted the request has the attribute enctype="multipart/form-data". So you miss it in your form tag — e.arbitrio
– e.arbitrio, Commented May 3, 2017 at 15:15
I setted enctype="multipart/form-data in my form and now every thing is ok! — Stateless
– Stateless, Commented May 3, 2017 at 15:21

Exprator · Accepted Answer · 2017-05-04 05:50:33Z

1

in your view function

def pythonhandler(request):
data = DocumentForm(request.POST, request.FILES)

and in your html file

<form  class="myclass" action="submit" enctype="multipart/form-data" method="post">
    {% csrf_token %}

    <p>
                {{ form.docfile.errors }}
                {{ form.docfile }}
</p>
            <input type="submit" value="upload" id="button" class="top-menu" onclick="pythonhandler()" />

answered May 4, 2017 at 5:50

Exprator

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2 Comments

Stateless Over a year ago

The problem was due to enctype="multipart/form-data" attribute in my form. the View function is ok.

Exprator Over a year ago

jsut gave a smaller way. anyways pleasure that it helped

Stateless · Accepted Answer · 2017-05-03 15:25:40Z

0

I have missed enctype="multipart/form-data" command in my form tag in my HTML file. So, my form in the HTML file must be such as bellow:

<form  class="myclass" action="submit" enctype="multipart/form-data" method="post">
    {% csrf_token %}

    <p>
                {{ form.docfile.errors }}
                {{ form.docfile }}
</p>
            <input type="submit" value="upload" id="button" class="top-menu" onclick="pythonhandler()" />

answered May 3, 2017 at 15:25

Stateless

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