ModelForm文件上传

一、 启用media

1、在url中进行配置：

from django.urls import path,re_path
from django.views.static import serve
from django.conf import settings

urlpatterns = [
# path('admin/', admin.site.urls),
# 配置media
re_path(r'^media/(?P.*)$',serve,{'document_root':settings.MEDIA_ROOT},name='media'),
]

2、在settings.py中配置：

import os
MEDIA_ROOT = os.path.join(BASE_DIR,'media')
MEDIA_URL = '/media/'

ModelForm文件上传

class City(models.Model):
'''老板'''
name = models.CharField(verbose_name='姓名', max_length=32)
count = models.IntegerField(verbose_name='人口')
# 本质上也是CharField,自动保存数据到media下的city/文件夹
img = models.FileField(verbose_name='Logo', max_length=128,upload_to='city/')

二、定义modelForm

class UpModelForm(BootStrapModelForm):
bootstrap_exclude_fields = ['img']
class Meta:
model = models.City
fields = 'all'

三、

def upload_model_form(request):
'''上传文件和数据（modelForm)'''
title = 'ModelForm上传文件'
if request.method == 'GET':
form = UpModelForm()
return render(request, 'upload_form.html', {'form': form, 'title': title})
form = UpModelForm(data=request.POST,files=request.FILES)
if form.is_valid():
# 对于文件：自动保存
# 字段+路径保存到数据库
form.save()
return HttpResponse('OK')
return render(request, 'upload_form.html', {'form': form, 'title': title})

手动上传

前端

{% csrf_token %}

后端

def upload_list(request):
if request.method == 'GET':
return render(request, 'upload_list.html')
# print(request.POST) # 请求体中数据
# print(request.FILES) # 请求发过来的文件
file_object = request.FILES.get('avatar')
print(file_object.name)

f = open(file_object.name, mode='wb')
for chunk in file_object.chunks():
f.write(chunk)
f.close()

return HttpResponse('...')

forms上传文件

{{ title }}

{% csrf_token %}
{% for field in form %}

{{ field.label }}
{{ field }}
{{ field.errors.0 }}

{% endfor %}
提交

from django import forms
from app01.utils.bootstrap import BootStrapForm

class UpForm(BootStrapForm):
bootstrap_exclude_fields = ['img']
name = forms.CharField(label='姓名')
age = forms.IntegerField(label='年龄')
img = forms.FileField(label='头像')

def upload_form(request):
title = 'Form上传'
if request.method == 'GET':
form = UpForm()
return render(request, 'upload_form.html', {'form': form, 'title': title})
form = UpForm(data=request.POST, files=request.FILES)
if form.is_valid():
# 1.读取图片内容，写入到文件夹中获取文件的路径
image_object = form.cleaned_data.get('img')
from django.conf import settings

media_path = os.path.join(settings.MEDIA_ROOT, image_object.name) # 存储到数据库中的绝对路径

media_path = os.path.join('media', image_object.name) # 存储到数据库中的路径
f = open(media_path, mode='wb')
for chunk in image_object.chunks():
f.write(chunk)
f.close()
# 2.将图片文件路径写入到数据库
models.Boss.objects.create(
name=form.cleaned_data['name'],
age=form.cleaned_data['age'],
img=media_path
)

return HttpResponse('...')
return render(request, 'upload_form.html', {'form': form, 'title': title})