我有一个一直在工作的搜索页面，直到我将返回的代码进行编码以进行编辑。
理想情况下，用户进行搜索并返回一些值，这些值到目前为止都很好。然后，当用户单击编辑按钮以获取值时，我希望字段以可编辑的格式返回。
这是views.py
def search_device_list(request, id):
license_key = Maintenance.objects.get(id=id)
maintenance_form = MaintenanceForm(instance=license_key)
devices = Devices.objects.filter(maintenance = id)
end_of_maintenance_support = MaintenanceForm()
locations = Locations.objects.all()
context ={"locations": locations}
for locations in context['locations']:
print(locations)
if request.method == 'POST':
location_name=request.POST.get('location_name')
my_devices = Devices.objects.filter(locations = Locations.objects.get(location_name = location_name))
maintenance_form = MaintenanceForm(request.POST, instance=license_key)
license_key = request.POST.get('license_key')
maintenance_support_end_date = request.POST.get('maintenance_support_end_date')
context["devices"]= my_devices
context["location_name"]= location_name
context["license_key"] = license_key
context["maintenance_support_end_date"] = maintenance_support_end_date
if maintenance_form.is_valid():
license = maintenance_form.save()
print (license.license_key)
postdevices= request.POST.getlist("devices")
for device_hostname in postdevices:
device = Devices.objects.get(device_hostname = device_hostname)
print(device.maintenance.license_key)
print(device.maintenance.maintenance_support_end_date)
device.save()
return render(request, 'inventory/search_device_list.html', context)
这是template.py
{% block content %}
<h2 align="left">Search Page</h2>
<!-- <form action="{% url 'inventory:render_results' %}" method="POST" > -->
<form action="{% url 'inventory:search_device_list' %}" method="POST" >
{% csrf_token %}
<body>
<table class=table>
<tr>
<td><b>Locations: </b></td>
<td>
<select name="location_name">
{% for locations in locations %}
<option value="{{locations.location_name}}">{{locations.location_name}}</option>{% endfor%}
</select>
</td>
<td><input type="submit" name = "submit" value="Submit"/></td>
</tr>
<br>
<h3 align="left">Render Device List based on Location Choice</h3>
<table>
<tr>
<td><b>Locations:</b><br>{{location_name }} <br></td>
<td><b> Devices: </b><br>
{% for device in devices %}{{device.device_hostname}} <br>{% endfor %} </td>
<td id="maintenance_support_end_date"><b>End of Maintenance Support:</b><br>{% for device in devices%}{{device.maintenance.maintenance_support_end_date}}<br> {% endfor %} </td>
<td id="license_key"><b>License Key:</b><br>{% for device in devices%}{{device.maintenance.license_key}}<br>{% endfor %}</td>
<td><b>Actions:</b><br> {% for device in devices%} <a href= {% url 'inventory:search_device_list' %}><button id="maintenance_support_end_date">Edit </button></a><br> {% endfor %} </td>
</tr>
</table>
<table class=table>
<h3 align="left"> Edit Table </h3>
<tr>
<td><b>Locations: </b></td><td>{{maintenance_form.location_name}}</td>
<td><b>Devices </b></td><td>{% if devices %}
{% for device in devices %}
{{ device }} <br><br>
{% endfor %} </td>
<td><b>License Key: </b></td><td>{{maintenance_form.license_key}}</td>
<td><b>Support End Date: </b></td><td>{{maintenance_form.maintenance_support_end_date}}</td>
</tr>
</table>
{% endblock content %}
最后，urls.py-我确实对此错误消息进行了一些搜索，因为它很常见，所以我尝试了两个不同的url路径
url(r'^search_device_list/$', views.search_device_list, name='search_device_list'),
url(r'^search_device_list/(?P<id>\d+)$', views.search_device_list, name='search_device_list'),
这里引用了两个不同的模型，即设备和维护。我认为这是我对id如何通过代码传递的理解的一个缺陷。任何想法或提示表示赞赏。
最佳答案
解
更改def search_device_list(request, id):至def search_device_list(request, id=None):请注意，您必须修改代码，以便处理id为None时的情况，因为当前，您的 View 取决于所提供的id。
说明/search_device_list/和/search_device_list/(?P<id>\d+)都使用相同的 View 。
当您访问第一个URL时，它会调用您的 View 函数，但不会传递id。
当您访问/search_device_list/(?P<id>\d+)时，它会调用您的view函数，但是这次它传递了id。
通过将view函数更改为def search_device_list(request, id=None):，您可以将view函数的id参数设置为可选
关于django - Django : search_device_list() missing 1 required positional argument: 'id' ，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/60895151/