在Ajax调用之后，django是否无法重定向给定的URL？

Question

I want to put loading image while saving data in database. So ,I Ajax call to do it. I use Django 1.8 and after put Ajax call Django not redirect default page after adding data successfully.I check data in save successfully and view.py method also run.

Before put Ajax call when I submit invalid data to forum and when submit it ,show validation errors.but now only view Ajax error message.

but after add ajax , now I enter submit without data didn't show above instruction(validation error). I used Django default validation an they are defined model class when create form.

----------------keylist.html------------------------------

{ % extends "base.html" %}
{% load crispy_forms_tags %}

{% block title %}
  {% if create %}Create{% else %}New Key{% endif %}Serious
{% endblock %}

{% block heading %}
  <h2>
      Create New Serial Keys
  </h2>
{% endblock %}

{% block content %}
  {% if create %}
    {% url "marcador_key_create" as action_url %}
  {% else %}
    {% url "marcador_bookmark_search" pk=form.instance.pk as action_url %}
  {% endif %}
  <form action="{{ action_url }}" method="post" accept-charset="utf-8" id="createForm" >
    {{ form|crispy }}
    {% csrf_token %}
    <div id="submit_loader"></div>
    <p> <b>Expiry Date*:</b>  <input type="date" id="datepicker" name="expier_date"></p>
    <p><input type="submit" class="btn btn-default" value="Save"   id="save_button"> </p>

  </form>

{% endblock %}

-------base.html (ajax method )-------------------------------------

   <script>
       // Attach a submit handler to the form
       $("#createForm").submit(function (event) {
             event.preventDefault();

             //var formData = new FormData($("#createForm")[0]);
             var serverUrl =$("#createForm").attr('action');

             $.ajax({
                        url: serverUrl,
                        type: 'POST',
                        data: $("#createForm").serialize(),

                        beforeSend: function() {
                              $('#submit_loader').css('display','block');
                        },
                       complete: function(){
                              $('#submit_loader').css('display','none');
                       },
                       success: function (returndata) {
                            alert("succsesfully generate keys");
                            //window.location("xsd");
                            //return false;
                       },
                       error: function(data){
                           alert("please ,check you fill form correctly");
                       }
               });
               //return false;
       });
</script>

---------view.py (calling method )----------------------------------

   @login_required
def key_create(request):
    #print(request.POST)

    if request.method == 'POST':
        form = KeyGenarateForm(data=request.POST)
        expier_date = request.POST['expier_date']
        #print(expier_date=="")
        if(expier_date==""):
            form.is_valid= False;


        if form.is_valid():
             #request.POST._mutable = True
             Key_Gen = form.save(commit=False)
             Key_Gen.save(expier_date)
             return redirect('marcador_bookmark_user',username=request.user.username)
        else:
            print('form not valied')
            return render('marcador_bookmark_user',username=request.user.username)
    else:
        form = KeyGenarateForm()

    context = {'form': form, 'create_key': True}
    return render(request, 'marcador/key_genarate_form.html', context)

I test when I enter valid data and submit , every thing successfully , but didn't redirect my url.It show my old data in the field.

As,I noticed view.py return method not loading.

  return redirect('marcador_bookmark_user',username=request.user.username)

not execute.

please , expect some expert help.

Answer 1

May be this will help you:

Instead of this redirection in views.py:

return redirect('marcador_bookmark_user',username=request.user.username)

use this:

return HttpResponse(json.dumps([{username=request.user.username}]),mimetype='text/json')

At last on ajax success function:

window.location.href = '/url-path'+data.username; 

(username will be a key inside the context named "data").