I want to upload a file to my database and after it is uploaded import it and eventually export the data into my database. I have the uploading working just fine but I'm not sure how to get the absolute path of the file after it is uploaded. I'm able to print out the name of the document, but if the same document name is uploaded it is appended but still shows the original file name if I call form.cleaned_data['document'].name
. What can I do to get the absolute file path and then call a function to start processing this file?
So this is what I'm looking to do:
models.py
from django.db import models
# Create your models here.
class Document(models.Model):
description = models.CharField(max_length=255, blank=True)
document = models.FileField(upload_to='documents/')
uploaded_at = models.DateTimeField(auto_now_add=True)
views.py
from django.shortcuts import render, redirect
from django.views import View
# Create your views here.
from .forms import DocumentForm
from .models import Document
class FileUpload(View):
def post(self, request):
form = DocumentForm(request.POST, request.FILES)
if form.is_valid():
print()
print(form.cleaned_data['document'].name)
form.save()
return redirect('main_db_model:home')
else:
return render(request, 'file_upload_form.html', {
'form': form
})
def get(self, request):
form = DocumentForm()
return render(request, 'file_upload_form.html', {
'form': form
})
forms.py
from django import forms
from .models import Document
class DocumentForm(forms.ModelForm):
class Meta:
model = Document
fields = ('description', 'document', )
file_upload_form.html (template):
{% extends "base.html" %}
{% block content %}
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_p }}
<button type="submit">Upload</button>
</form>
{% if saved %}
<strong>Your profile was saved.</strong>
{% endif %}
This is the form page
<p><a href="{% url 'main_db_model:home' %}">Return to home</a></p>
<p>Uploaded files:</p>
<ul>
{% for obj in documents %}
<li>
<a href="{{ obj.document.url }}">{{ obj.document.name }}</a>
<small>(Uploaded at: {{ obj.uploaded_at }})</small>
{{ obj.document.url }}
</li>
{% endfor %}
</ul>
{% endblock %}
Previously, I suggest you to change this upload_to='documents/'
to upload_to='documents/%Y/%m/%d'
, why? this to handle huge document files inside your path of documents/
.
form.cleaned_data['document']
(or request.FILES['document']
) return a UploadedFile
object. of course form.cleaned_data['document'].name
should return a name only.
class FileUpload(View):
def post(self, request):
form = DocumentForm(request.POST, request.FILES)
if form.is_valid():
# this `initial_obj` if you need to update before it uploaded.
# such as `initial_obj.user = request.user` if you has fk to `User`,
# if not you can only using `obj = form.save()`
initial_obj = form.save(commit=False)
initial_obj.save()
# return path name from `upload_to='documents/'` in your `models.py` + absolute path of file.
# eg; `documents/filename.csv`
print(initial_obj.document)
# return `MEDIA_URL` + `upload_to` + absolute path of file.
# eg; `/media/documents/filename.csv`
print(initial_obj.document.url)
form.save()
But you will get a different if you using upload_to='documents/%Y/%m/%d'
,
print(initial_obj.document) # `documents/2017/02/29/filename.csv`
print(initial_obj.document.url) # `/media/documents/2017/02/29/filename.csv`
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