Django自动完成- request.is_ajax()总是返回false

Question

刚到Django。尝试设置一个具有支持自动完成的文本框的页面。我参考了这个帖子作为指导。由于某些原因，request.is_ajax()总是返回false。

主应用程序urls.py

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^$', home),
    url(r'^search_assist/', include('search_assist.urls')),
]

urls.py for search_assist应用程序

urlpatterns = [
    url(r'^$', views.search_assist, name='search_assist'),
]

views.py

def search_assist(request):
    if request.is_ajax():
        q = request.GET.get('term', '')
        states = State.objects.filter(state_name_full__icontains = q )[:20]
        results = []
        for state in states:
            state_json = {}
            state_json['id'] = state.id
            state_json['label'] = state.state_name_full
            state_json['value'] = state.state_name_full
            results.append(state_json)
        data = json.dumps(results)
    else:
        data = 'fail'
    mimetype = 'application/json'
    return HttpResponse(data, mimetype)

{% extends "gif_alpha_test/header.html" %}
  <div class="ui-widget">
      <label for="sassist">Search Assist: </label>
      <input type="text" id="sassist">
  </div>

header.html具有以下jQuery函数。

<script>
$( document ).ready(function() {
    assist();
});
function assist(){
            $.ajaxSetup({
                headers: {'X-Requested-With': 'XMLHttpRequest'}

            $("#sassist").autocomplete({
                source: "/search_assist/",
                minLength: 2,
            });});
        }
</script>

我很少看到其他类似的帖子，但对这些帖子的评论/回应并没有帮助。

对于为什么request.is_ajax()总是返回false有什么想法吗？感谢你的帮助。

Answer 1

将此添加到JS调用的顶部

$.ajaxSetup({
    headers: {'X-Requested-With': 'XMLHttpRequest'}
});