Question

到目前为止，我正在尝试创建具有相关下拉菜单的表单，我已经能够添加所需的触发器，但是我只是注意到响应消息未呈现模板标签我尝试添加模板标签的其他HTML文件也被忽略了我不知道是什么原因导致这种错误

查看了其他一些帖子后，这些帖子说如果我要使用{％load XYZ％}。我应该在所有HTML页面中都使用这个load标签，但这不能解决我的问题

我的views.py：

from django.shortcuts import render,redirect
from django.views.generic.base import TemplateView
from status.forms import StatusForm
from status.models import FlightStatus
from django.views.generic import ListView, CreateView, UpdateView
from postlog.models import Flight
from django.urls import reverse_lazy
# Create your views here.
class StatusPageView(CreateView):

    template_name = "status/home.html"
    model = FlightStatus
    form_class = StatusForm
    success_url = reverse_lazy('status') 

def load_park_bay(request):
    flightid = request.GET.get('flight1')
    parks = Flight.objects.filter(fl_no='flightid').order_by('park_bay')
    context = {'parks': parks}
    return render(request, 'status/park_bay_dropdown_list.html', context)

我的urls.py：

from django.urls import path,include
from . import views
from django.contrib.staticfiles.urls import staticfiles_urlpatterns

urlpatterns = [
    path('', views.StatusPageView.as_view(), name='status'),
    path('ajax/load-park/', views.load_park_bay, name='ajax_load_park'),
]

显示表单的我的主页home.html：

{% extends 'base_template1.html' %}
{% load static from staticfiles %}
{% load crispy_forms_tags %}

<!DOCTYPE html>

{% block title %} Status {% endblock %}

{% block content %} 
<div class="modal fade" id="Add_Modal" tabindex="-1" role="dialog" aria-labelledby="Add_ModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="AddModalLabel">Flight Details</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        <form method="post" id="statusForm" data-parks-url="{% url 'ajax_load_park' %}" novalidate>
            {% csrf_token %}
            {{ form|crispy }}
        <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Add Details</button>
      </div>
        </form>
      </div>
    </div>
  </div>
</div>
<script
  src="https://code.jquery.com/jquery-3.4.1.js"
  integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU="
  crossorigin="anonymous"></script> 
  <script>
    $("#id_fl_no").change(function () {
      var url = $("#statusForm").attr("data-parks-url");
      var flightId = $(this).val();

      $.ajax({
        url: url,
        data: {
          'flight1': flightId
        },
        success: function (data) {
          $("#id_park_bay").html(data);
        }
      });

    });
  </script>
{%endblock%}

html响应用作对ajax请求park_bay_dropdown.html的响应：

{% load static from staticfiles %}
{% load crispy_forms_tags %}

<option value="">---------</option>
{% for park in parks %}
    <option value="{{ park.fl_no }}">{{ park.park_bay }}</option>
{% endfor %}

已收到回复：link 即使当我尝试将表单实例作为显示完整表单的上下文发送时，也没有显示任何模板标签

Answer 1

由于您将来自ajax的'flight1'的值存储在变量flightid中。因此，您需要在查询中编写不带''的flightid。并且还要保持实践，将来自Ajax的id转换为int，以避免在通过ORM查询时出现任何错误。所以您的看法就是这样。

def load_park_bay(request):
    flightid = int(request.GET.get('flight1'))
    parks = Flight.objects.filter(fl_no=flightid).order_by('park_bay')
    context = {'parks': parks}
    return render(request, 'status/park_bay_dropdown_list.html', context)

无法使用模板标签

1 个答案: