이전 페이지 정보 넘기기 : 겟방식으로 이전 페이지 url 날려.

get : 주소 뒤에 정보를 붙여 -> url?name=최유림&gender=female
<form action="url" method="get">
  <input>
  <input>
  
post
  

file 업로드

<input type="file" id="input_file">
  
<input type="text" id="input_text">
  
  <button type="button" onclick="check_file();">첨부파일확인</button>
  
<script>
  fuction check_file(){
  	alert(document.getElementById("input_file").value);
  }
  document.getElementById("input_text").value="하하하";
</script>

---> 파일첨부는 자바스크립트로 통제 X.

from django import forms

class UploadFileForm(forms.Form):
    title = forms.CharField(max_length=50)
    file = forms.FileField()

from django.http import HttpResponseRedirect
from .forms import UploadFileForm

# Imaginary function to handle an uploaded file.
from somewhere import handle_uploaded_file

def upload_file(req):
    if request.method == 'POST':
        form = UploadFileForm(req.POST, req.FILES)
        if form.is_valid():
            handle_uploaded_file(req.FILES['file'])
            return HttpResponseRedirect('/success/url/')
    else:
        form = UploadFileForm()
    return render(req, 'upload.html', {'form': form})

def handle_uploaded_file(f):
    with open('/root/yook-django/my_homepage/member/some/file/name.txt', 'wb+') as destination:
        for chunk in f.chunks():
            destination.write(chunk)
            
            #chunk 한줄 한줄 읽는다.
            #some/file/name.txt 이거 열어 destination이라고 불러. 그런다음에 지금 업로드한 파일의 내용을 destination에 한줄 한줄 적어라~

import os
os.path.abspath('./member/static/ssac.txt') -> .은 프로젝트 폴더가 기준

#upload.html
<form enctype="multipart/form-data"
method="post">
	{% csrf_token %}
	{{form}}
    <button type="submit">업로드</button>
</form>

from .forms import UploadFileForm

# Imaginary function to handle an uploaded file.
from somewhere import handle_uploaded_file

def upload_file(req):
    if request.method == 'POST':
        form = UploadFileForm(req.POST, req.FILES)
        if form.is_valid():
            handle_uploaded_file(req.FILES['file'])
            return render(req, 'main.html')
    else:
        form = UploadFileForm()
    return render(req, 'upload.html', {'form': form})

from .forms import UploadFileForm

def upload_file(req):
    if req.method == 'POST':
        form = UploadFileForm(req.POST, req.FILES)

        if form.is_valid():
            ssac_upload(req.FILES['file'])
            return render(req, 'main.html')
    else:
        form = UploadFileForm()
        return render(req, 'upload.html', {'form': form})

def ssac_upload(f):
    with open( os.path.abspath( './member/static/ssac.txt' ), 'wb+') as dest:
        for chunk in f.chunks():
            dest.write(chunk)

#views.py

from django import forms

class UploadFileForm(forms.Form):
    file = forms.FileField()

#forms.py

<form method="post" enctype="multipart/form-data">
	{% csrf_token %}
	
	{{ form }}
	
	<button type="submit">업로드</button>
</form>

#upload.html

단순화

#forms.py 안 쓰고 

<form method="post" enctype="multipart/form-data">
	{% csrf_token %}
	
	<input type="file" name="my_file">
	
	<button type="submit">업로드</button>
</form>

#upload.html

def upload_file(req):
    if req.method == 'POST':
    	with open( os.path.abspath( './member/static/' + req.FILES['my_file'].name ), 'wb+') as dest:
        for chunk in req.FILES['my_file'].chunks():
            dest.write(chunk)
        return render(req, 'a.html')
    else:
        return render(req, 'upload.html')
    

#views.py