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[英]unable to display Image in a Django Template (using ImageField)
[英]Unable to display image using django
我是django的新手。 在我的应用中,我正在将要存储的图像上传到媒体文件夹。 现在,我正在尝试提供用于下载无法正常工作的图像的链接。 我也试图直接显示图像(使用html中的img),但也不起作用。
我的代码如下:
urls.py
from django.conf.urls import url
from . import views
from django.conf import settings
from django.conf.urls.static import static
app_name = 'workers'
urlpatterns = [
url(r'^$', views.index, name= 'index'),
url(r'^enrollment$',views.enroll, name='enroll'),
url(r'^save_enrollment$',views.save_enrollment, name='save_enrollment'),
]
if settings.DEBUG:
urlpatterns = urlpatterns + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
表格
from django import forms
from django.forms import ModelForm
from .models import Worker
class Worker_enrollment(forms.ModelForm):
name = forms.CharField(max_length=250)
address = forms.CharField(max_length=500)
phone_number = forms.CharField(max_length=100)
designation = forms.CharField(max_length=1000)
docfile = forms.FileField(label='select an image to upload')
ssn = forms.CharField(max_length=200)
class Meta:
model = Worker
fields = ['name','address','phone_number','designation','docfile','ssn']
models.py:-
from django.db import models
class Worker(models.Model):
name = models.CharField(max_length=250)
address = models.CharField(max_length=500)
phone_number = models.CharField(max_length=100)
designation = models.CharField(max_length=1000)
docfile = models.ImageField(upload_to='documents/')
ssn = models.CharField(max_length=200)
def __str__(self):
return (self.name)
views.py:-
from .models import Worker
from .forms import Worker_enrollment
from django.shortcuts import render, get_object_or_404
from django.conf import settings
def index(request):
workers_info = Worker.objects.all()
context = {
'workers':workers_info
}
return render(request, 'workers/index.html', context)
def enroll(request):
form = Worker_enrollment(request.POST)
if form.is_valid():
return render(request, 'workers/enroll.html', {'form': form})
else:
form = Worker_enrollment()
return render(request, 'workers/enroll.html', {'form': form})
def save_enrollment(request):
worker_info = Worker()
if request.method == 'POST':
form = Worker_enrollment(request.POST,request.FILES)
if form.is_valid():
worker_info.name = form.cleaned_data['name']
worker_info.address = form.cleaned_data['address']
worker_info.designation = form.cleaned_data['designation']
worker_info.phone_number = form.cleaned_data['phone_no']
worker_info.ssn = form.cleaned_data['ssn']
worker_info.docfile = request.FILES['docfile']
worker_info.save()
return render(request,'workers/saves_worker.html',{'worker_info':worker_info})
else:
form = Worker_enrollment()
return render(request, 'workers/saves_worker.html', {'worker_info': worker_info})
enroll.html:-
<form action="save_enrollment" method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_ul }}
<input type="submit" value="Submit" />
</form>
saves_worker.html:-
<h1>Worker has been enrolled</h1>
<br>
<h2>Name - {{worker_info.name}}</h2><br>
<h2>PhoneNo - {{worker_info.phone_number}}</h2><br>
<h2>Designtion - {{worker_info.designation}}</h2><br>
<h2>SSN - {{worker_info.ssn}}</h2>
<h2>Address - {{worker_info.address}}</h2>
<h2><a href="{{ worker_info.docfile.url }}" >worker's image</h2>
在settings.py文件中指定了以下内容:-
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'
STATIC_URL = '/static/'
STATICFILES_DIRS = (os.path.join(BASE_DIR, "static"),)
您确定您的save_enrollment函数将图像保存在worker_info的docfile字段中。 尝试使用:
def save_enrollment(request):
if request.method == 'POST':
form = Worker_enrollment(request.POST,request.FILES)
if form.is_valid():
worker_info = form.save()
return render(request,'workers/saves_worker.html',{'worker_info':worker_info})
else:
form = Worker_enrollment()
return render(request, 'workers/saves_worker.html', {'worker_info': worker_info}
您无需在模型表单中再次定义字段。 另外你正在使用FileField
形式代替ImageField
。 如果要在表单中添加额外的字段,则需要在表单的__init__()
方法中添加这些字段。 请尝试以下操作:
class Worker_enrollment(forms.ModelForm):
class Meta:
model = Worker
fields = ['name','address','phone_number','designation','docfile','ssn']
额外提示 :不要使用max_length=1000
CharField
。 CharField
可使用255个字符。 如果需要更多长度,请改用TextField
。 您还需要安装Pillow
库以使图像可见。
我只是通过更改MEDIA_URL来解决我的问题,如下所示:
MEDIA_URL = 'shield/media/'
我的项目的名称是Shield。
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