Python “Django”；NoReverseMatch“；尝试从html调用视图中的函数时出错

我试图在一个框的顶部显示一个用户名，用户在该框中以表单形式输入其员工，而无需刷新页面

例如，他们输入自己的#，然后在单击下一个字段的/tab后，它会将他们的名字显示在顶部，这是来自数据库的，因此用户知道他们输入了正确的信息。这个名称存储在一个单独的模型中，所以我尝试使用“id/number”来检索它

我对AJAX不太熟悉，但在阅读了一些类似的问题之后，AJAX请求似乎是实现这一点的最合适的方法。我尝试创建一个函数get_employee_name，该函数根据我看到的另一个ajax请求的工作方式返回人员的姓名，但我不确定如何实现这一点，因此它会在输入#后显示

我现在尝试查看页面时出现此错误，我不确定我在哪里错误地传递了“id/employee_number”，这导致显示：

django.urls.exceptions.NoReverseMatch: Reverse for 'ajax_get_employee_name' with no arguments not found. 1 pattern(s) tried: ['operations/ajax\\/get\\-employee\\-name\\/(?P<id>[0-9]+)\\/$']

这是存储名称的模型

alldata/models.py

class EmployeeWorkAreaLog(TimeStampedModel, SoftDeleteModel, models.Model):
    employee_number = models.ForeignKey(Salesman, on_delete=models.SET_NULL, help_text="Employee #", null=True, blank=False)
    work_area = models.ForeignKey(WorkArea, on_delete=models.SET_NULL, null=True, blank=False)
    station_number = models.ForeignKey(StationNumber, on_delete=models.SET_NULL, null=True,  blank=True)

    def __str__(self):
        return self.employee_number

class Salesman(models.Model):
    slsmn_name = models.CharField(max_length=25)
    id = models.IntegerField(db_column='number', primary_key=True)

class WarehouseForm(AppsModelForm):
    class Meta:
        model = EmployeeWorkAreaLog
        widgets = {
            'employee_number': ForeignKeyRawIdWidget(EmployeeWorkAreaLog._meta.get_field('employee_number').remote_field, site, attrs={'id':'employee_number_field'}),
        }
        fields = ('employee_number', 'work_area', 'station_number')

class EnterExitArea(CreateView):
    model = EmployeeWorkAreaLog
    template_name = "operations/enter_exit_area.html"
    form_class = WarehouseForm

    def form_valid(self, form):
        # do submission stuff..


def get_employee_name(request):
    employee_number = request.GET.get('employee_number')
    employee = Salesman.objects.get(id=employee_number)
    employee_name = employee.slsmn_name
    return employee_name

urlpatterns = [
    url(r'enter-exit-area/$', EnterExitArea.as_view(), name='enter_exit_area'),

    path('ajax/get-employee-name/<int:id>/', views.get_employee_name, name='ajax_get_employee_name'),
]

我在阅读我可以在小部件中的“attrs”中添加一个“onchange”部分，但是我不太熟悉如何处理这个问题，并将它与来自表单而不是html的ajax请求联系起来

forms.py

class EmployeeWorkAreaLog(TimeStampedModel, SoftDeleteModel, models.Model):
    employee_number = models.ForeignKey(Salesman, on_delete=models.SET_NULL, help_text="Employee #", null=True, blank=False)
    work_area = models.ForeignKey(WorkArea, on_delete=models.SET_NULL, null=True, blank=False)
    station_number = models.ForeignKey(StationNumber, on_delete=models.SET_NULL, null=True,  blank=True)

    def __str__(self):
        return self.employee_number

class Salesman(models.Model):
    slsmn_name = models.CharField(max_length=25)
    id = models.IntegerField(db_column='number', primary_key=True)

class WarehouseForm(AppsModelForm):
    class Meta:
        model = EmployeeWorkAreaLog
        widgets = {
            'employee_number': ForeignKeyRawIdWidget(EmployeeWorkAreaLog._meta.get_field('employee_number').remote_field, site, attrs={'id':'employee_number_field'}),
        }
        fields = ('employee_number', 'work_area', 'station_number')

class EnterExitArea(CreateView):
    model = EmployeeWorkAreaLog
    template_name = "operations/enter_exit_area.html"
    form_class = WarehouseForm

    def form_valid(self, form):
        # do submission stuff..


def get_employee_name(request):
    employee_number = request.GET.get('employee_number')
    employee = Salesman.objects.get(id=employee_number)
    employee_name = employee.slsmn_name
    return employee_name

urlpatterns = [
    url(r'enter-exit-area/$', EnterExitArea.as_view(), name='enter_exit_area'),

    path('ajax/get-employee-name/<int:id>/', views.get_employee_name, name='ajax_get_employee_name'),
]

视图.py

class EmployeeWorkAreaLog(TimeStampedModel, SoftDeleteModel, models.Model):
    employee_number = models.ForeignKey(Salesman, on_delete=models.SET_NULL, help_text="Employee #", null=True, blank=False)
    work_area = models.ForeignKey(WorkArea, on_delete=models.SET_NULL, null=True, blank=False)
    station_number = models.ForeignKey(StationNumber, on_delete=models.SET_NULL, null=True,  blank=True)

    def __str__(self):
        return self.employee_number

class Salesman(models.Model):
    slsmn_name = models.CharField(max_length=25)
    id = models.IntegerField(db_column='number', primary_key=True)

class WarehouseForm(AppsModelForm):
    class Meta:
        model = EmployeeWorkAreaLog
        widgets = {
            'employee_number': ForeignKeyRawIdWidget(EmployeeWorkAreaLog._meta.get_field('employee_number').remote_field, site, attrs={'id':'employee_number_field'}),
        }
        fields = ('employee_number', 'work_area', 'station_number')

class EnterExitArea(CreateView):
    model = EmployeeWorkAreaLog
    template_name = "operations/enter_exit_area.html"
    form_class = WarehouseForm

    def form_valid(self, form):
        # do submission stuff..


def get_employee_name(request):
    employee_number = request.GET.get('employee_number')
    employee = Salesman.objects.get(id=employee_number)
    employee_name = employee.slsmn_name
    return employee_name

urlpatterns = [
    url(r'enter-exit-area/$', EnterExitArea.as_view(), name='enter_exit_area'),

    path('ajax/get-employee-name/<int:id>/', views.get_employee_name, name='ajax_get_employee_name'),
]

url.py

class EmployeeWorkAreaLog(TimeStampedModel, SoftDeleteModel, models.Model):
    employee_number = models.ForeignKey(Salesman, on_delete=models.SET_NULL, help_text="Employee #", null=True, blank=False)
    work_area = models.ForeignKey(WorkArea, on_delete=models.SET_NULL, null=True, blank=False)
    station_number = models.ForeignKey(StationNumber, on_delete=models.SET_NULL, null=True,  blank=True)

    def __str__(self):
        return self.employee_number

class Salesman(models.Model):
    slsmn_name = models.CharField(max_length=25)
    id = models.IntegerField(db_column='number', primary_key=True)

class WarehouseForm(AppsModelForm):
    class Meta:
        model = EmployeeWorkAreaLog
        widgets = {
            'employee_number': ForeignKeyRawIdWidget(EmployeeWorkAreaLog._meta.get_field('employee_number').remote_field, site, attrs={'id':'employee_number_field'}),
        }
        fields = ('employee_number', 'work_area', 'station_number')

class EnterExitArea(CreateView):
    model = EmployeeWorkAreaLog
    template_name = "operations/enter_exit_area.html"
    form_class = WarehouseForm

    def form_valid(self, form):
        # do submission stuff..


def get_employee_name(request):
    employee_number = request.GET.get('employee_number')
    employee = Salesman.objects.get(id=employee_number)
    employee_name = employee.slsmn_name
    return employee_name

urlpatterns = [
    url(r'enter-exit-area/$', EnterExitArea.as_view(), name='enter_exit_area'),

    path('ajax/get-employee-name/<int:id>/', views.get_employee_name, name='ajax_get_employee_name'),
]

urlpatterns=[
url（r'enter-exit-area/$'，EnterExitArea.as\u view（），name='enter\u exit\u area'），
路径（'ajax/get employee name/'，views.get_employee_name，name='ajax_get_employee_name'），
]

我试图创建的ajax请求位于这个html的末尾。我修改了我发现的一个类似的请求，但它实际上没有在屏幕上显示任何内容，不确定我是否遗漏了一个请求实际上从未被调用的区域，因为我不太熟悉这些类型的请求是如何工作的

进入退出区域.html

{% extends "base.html" %}

{% block main %}
    <form id="warehouseForm" action="" method="POST" novalidate >
        {% csrf_token %}
        <div>
            <h1 get-employee-name-url="{% url 'operations:ajax_get_employee_name' %}" id='employee_name'></h1>
            <div>
                {{ form.employee_number.help_text }}
                {{ form.employee_number }}
            </div>
            <div>
                {{ form.work_area.help_text }}
                {{ form.work_area }}
            </div>
        </div>

        <div>
            <div>
                <button type="submit" name="enter_area" value="Enter">Enter Area</button>
            </div>
        </div>
    </form>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
    <script>
        $("#id_employee_number").change(function () {
            var employee_number = $(this).val();
            var url = $("#warehouseForm").attr("get-employee-name-url");

            $.ajax({
                url: url,
                type:'GET',
                data: {
                    'id': employee_number
                },
                success: function (data) {
                    var employee_name = data;
                    $('#employee_name')[0].innerHTML = employee_name;
                }
            });
        });
    </script>

{%extends“base.html”%}
{%block main%}
{%csrf_令牌%}
{{form.employee\u number.help\u text}
{{form.employee_number}
{{form.work\u area.help\u text}
{{form.work_area}}
进入区域
$（“#id#U员工#U编号”）。更改（函数（）{
var employee_number=$（this.val（）；
var url=$（“#仓库表单”）.attr（“获取员工姓名url”）；
$.ajax({
url:url，
类型：'GET'，
数据：{
“id”：员工编号
},
成功：功能（数据）{
var employee_name=数据；
$（'#雇员姓名'）[0].innerHTML=雇员姓名；
}
});
});

ajax\u get\u employee\u name的url定义需要一个

id

参数：

path('ajax/get-employee-name/<int:id>/', views.get_employee_name, name='ajax_get_employee_name')

path（'ajax/get employee name/'，views.get\u employee\u name，name='ajax\u get\u employee\u name'）

但是html文件中的url调用不提供id：

<h1 get-employee-name-url="{% url 'operations:ajax_get_employee_name' %}" id='employee_name'></h1>

更新url定义以不需要id，或更新url调用以包含id