我正在创建一个捐赠应用程序,允许捐赠者捐赠物品。我有一个名为 available supplies.html
的屏幕,它使用 for
循环呈现数据库中的所有捐赠。
每笔捐款都以用户友好的方式显示,并包含一个按钮,可让他们查看有关该特定捐款的详细信息。单击按钮后,用户将被重定向到一个页面,我希望在该页面中包含有关他们单击的捐赠的详细信息
我的问题是我无法弄清楚如何从我的模型中显示特定的捐赠,例如,如果我的用户点击了一个 apple 捐赠,我想获得此捐赠的详细信息并显示在另一个页面上
我的模型:
class Donation(models.Model):
title = models.CharField(max_length=30)
phonenumber = models.CharField(max_length=12)
category = models.CharField(max_length=20)
quantity = models.IntegerField(blank=True, null=True,)
未完成的视图:(我想获取上一页点击的捐赠的具体细节,而不是显示所有的捐赠)
def acceptdonation(request):
donations = Donation.objects.all()
context = {}
return render(request, 'acceptdonation.html', context)
编辑:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/donations/59/
Django Version: 3.1.6
Python Version: 3.8.2
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'crispy_forms',
'home']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback (most recent call last):
File "C:\Program Files\Python38\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
response = get_response(request)
File "C:\Program Files\Python38\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
Exception Type: TypeError at /donations/59/
Exception Value: __init__() takes 1 positional argument but 2 were given
答案 0 :(得分:1)
首先,需要一个 urlpattern
:
urlpatterns = [
...
path('donations/<int:pk>/', views.DonationDetail.as_view(), name='donation-detail')
]
然后,需要用一个视图函数来处理:
# views.py
from django.views.generic import DetailView
from .models import Donation
class DonationDetail(DetailView):
model = Donation
queryset = Donation.objects.all()
template_name = 'donation/detail.html' # whatever template name you want
您现在所需要做的就是在您的模板中为 DonationDetail
视图添加一个链接(假设您的列表模板中已经将捐赠列表设为 donations
)。
应该做一些事情
{% for donation in donations %}
<a href="{% url 'donation-detail' donation.pk %}"> View Detail </a>
{% endfor %}