Can You Upload an Audio File to Django Without a Forms.py
By Vitor Freitas
I'm a passionate software developer and researcher. I write about Python, Django and Web Development on a weekly basis. .
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How to Upload Files With Django
Updated at November 2, 2018: As suggested by @fapolloner, I've removed the transmission file handling. Updated the instance using FileSystemStorage instead. Thank you!
In this tutorial you lot will learn the concepts behind Django file upload and how to handle file upload using model forms. In the end of this post you lot volition discover the source code of the examples I used and so you can endeavour and explore.
This tutorial is also available in video format:
The Nuts of File Upload With Django
When files are submitted to the server, the file data ends upwardly placed in asking.FILES.
It is mandatory for the HTML course to have the attribute enctype="multipart/form-data" set correctly. Otherwise the asking.FILES will be empty.
The course must be submitted using the POST method.
Django accept proper model fields to handle uploaded files: FileField and ImageField.
The files uploaded to FileField or ImageField are not stored in the database but in the filesystem.
FileField and ImageField are created as a string field in the database (usually VARCHAR), containing the reference to the bodily file.
If you delete a model example containing FileField or ImageField, Django will not delete the concrete file, but but the reference to the file.
The request.FILES is a dictionary-like object. Each key in request.FILES is the proper name from the <input type="file" name="" />.
Each value in request.FILES is an UploadedFile instance.
You will need to set MEDIA_URL and MEDIA_ROOT in your project'due south settings.py.
MEDIA_URL = '/media/' MEDIA_ROOT = os . path . bring together ( BASE_DIR , 'media' ) In the evolution server y'all may serve the user uploaded files (media) using django.contrib.staticfiles.views.serve() view.
from django.conf import settings from django.conf.urls.static import static urlpatterns = [ # Project url patterns... ] if settings . DEBUG : urlpatterns += static ( settings . MEDIA_URL , document_root = settings . MEDIA_ROOT ) To access the MEDIA_URL in template you must add django.template.context_processors.media to your context_processeors inside the TEMPLATES config.
Simple File Upload
Post-obit is a minimal file upload instance using FileSystemStorage. Use it just to learn nearly the menstruation of the process.
simple_upload.html
{% extends 'base.html' %} {% load static %} {% block content %} <form method= "post" enctype= "multipart/form-data" > {% csrf_token %} <input type= "file" proper noun= "myfile" > <button type= "submit" >Upload</push button> </form> {% if uploaded_file_url %} <p>File uploaded at: <a href= "{{ uploaded_file_url }}" >{{ uploaded_file_url }}</a></p> {% endif %} <p><a href= "{% url 'home' %}" >Return to home</a></p> {% endblock %} views.py
from django.shortcuts import render from django.conf import settings from django.core.files.storage import FileSystemStorage def simple_upload ( request ): if request . method == 'POST' and request . FILES [ 'myfile' ]: myfile = request . FILES [ 'myfile' ] fs = FileSystemStorage () filename = fs . save ( myfile . proper noun , myfile ) uploaded_file_url = fs . url ( filename ) return render ( request , 'cadre/simple_upload.html' , { 'uploaded_file_url' : uploaded_file_url }) return render ( asking , 'core/simple_upload.html' ) File Upload With Model Forms
Now, this is a way more than convenient way. Model forms perform validation, automatically builds the absolute path for the upload, treats filename conflicts and other mutual tasks.
models.py
from django.db import models class Document ( models . Model ): description = models . CharField ( max_length = 255 , bare = True ) document = models . FileField ( upload_to = 'documents/' ) uploaded_at = models . DateTimeField ( auto_now_add = Truthful ) forms.py
from django import forms from uploads.core.models import Certificate class DocumentForm ( forms . ModelForm ): class Meta : model = Certificate fields = ( 'description' , 'document' , ) views.py
def model_form_upload ( asking ): if request . method == 'POST' : form = DocumentForm ( request . Postal service , request . FILES ) if form . is_valid (): grade . save () return redirect ( 'home' ) else : grade = DocumentForm () return return ( asking , 'core/model_form_upload.html' , { 'form' : class }) model_form_upload.html
{% extends 'base.html' %} {% block content %} <form method= "post" enctype= "multipart/form-data" > {% csrf_token %} {{ form.as_p }} <button type= "submit" >Upload</button> </form> <p><a href= "{% url 'domicile' %}" >Return to abode</a></p> {% endblock %} Nearly the FileField upload_to Parameter
See the instance beneath:
document = models . FileField ( upload_to = 'documents/' ) Note the upload_to parameter. The files will be automatically uploaded to MEDIA_ROOT/documents/.
It is also possible to do something like:
document = models . FileField ( upload_to = 'documents/ % Y/ % chiliad/ % d/' ) A file uploaded today would be uploaded to MEDIA_ROOT/documents/2016/08/01/.
The upload_to can also be a callable that returns a cord. This callable accepts 2 parameters, case and filename.
def user_directory_path ( instance , filename ): # file will be uploaded to MEDIA_ROOT/user_<id>/<filename> return 'user_{0}/{1}' . format ( instance . user . id , filename ) class MyModel ( models . Model ): upload = models . FileField ( upload_to = user_directory_path ) Download the Examples
The code used in this mail is bachelor on Github.
git clone https://github.com/sibtc/simple-file-upload.git pip install django python manage.py migrate python manage.py runserver Popular Posts
Source: https://simpleisbetterthancomplex.com/tutorial/2016/08/01/how-to-upload-files-with-django.html
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