I think the problem might be that you're using the getJSON function, which
expects a JSON response, but your view returns 'OK', which is not valid
JSON. The callback you have given to getJSON only gets called on "success"
(meaning a JSON document was retrieved) - that's why nothing is happening
for you right now. Try changing the return value from the view to a string
containing:
{"ok": true}
And then change this line in the JavaScript:
if (data == 'OK') {
to:
if (data.ok) {
I think it should work with those changes. If it doesn't, try checking the
JavaScript console in your browser for any errors.
Brett
On 12/14/11 4:03 PM, "yun li" <yli0...@gmail.com> wrote:
>But it still cannot work. when I submit something, it goes to the
>please_wait page showing "please wait" and then nothing happened. I
>really have no knowledge on ajax, so is there something I need to
>install or import in my projects? and how can I test if codes in
><script> ...</script> really invoked?
>
>Thanks,
>
>On 12月14日, 下午1时47分, Brett Epps <brett.e...@quest.com> wrote:
>> I think the problem is that your <script> tag is incorrect. You're using
>> the same one to load jQuery and to add your code, so your JavaScript is
>> not getting run. The file "please_wait.html" should look like this:
>>
>> <!DOCTYPE html>
>> <html>
>> <head>
>> <title>Please wait.</title>
>> <meta charset="utf-8">
>> <script
>>src="http://code.jquery.com/jquery-1.7.1.min.js";></script>
>> <script>
>> $(function() {
>> $.getJSON('{% url run_DHM %}', function(data) {
>> if (data == 'OK') {
>> window.location.href = '{% url displayDHM %}';
>> } else {
>> alert(data);
>> }
>> });
>> });
>> </script>
>> </head>
>> <body>
>> <p>Please wait.</p>
>> </body>
>> </html>
>>
>> I've also added a bit more to the HTML file so that it is more
>> standards-compliant.
>>
>> Brett
>>
>> On 12/14/11 1:23 PM, "yun li" <yli0...@gmail.com> wrote:
>>
>>
>>
>>
>>
>>
>>
>> >Hi,
>> >Does anyone can help?
>> >Here are all contents in my files, I tried variable ways, but when I
>> >submit a form, it only return the please_wait page and then stay there
>> >forever. There is no redirect happened.
>> >Since I want to check if it works first, there is no actual
>> >calculation in the code.
>>
>> >######### url.py ################
>> >urlpatterns = patterns('',
>> > (r'^test$',views.test_form),
>> > (r'^please_wait', views.please_wait),
>> > url(r'^run_DHM$', views.run_DHM, name="run_DHM") ,
>> > url(r'^displayDHM', views.display_DHM, name="displayDHM")
>> >)
>>
>> >########### view.py #############
>> >def test_form(request):
>> > return render_to_response('test.html')
>>
>> >def please_wait(request):
>> > return render_to_response('please_wait.html')
>>
>> >def run_DHM(request):
>> > ### lengthy calculations... ...
>> > return HttpResponse("OK")
>>
>> >def display_DHM(request):
>> > return render_to_response('display_DHM.html')
>>
>> >########## test.html ###########
>> >{% extends "baseFrame.html" %}
>>
>> >{% block maincontent %}
>> > <form method="POST" action="please_wait">
>> > <p>Test:</p>
>> > <div id="address"></div>
>> > <p>Type your value in here:</p>
>> > <p><textarea name="order" rows="6" cols="50" id="order"></
>> >textarea></p>
>> > <p><input type="submit" value="submit" id="submit" /></p>
>> > </form>
>> >{% endblock %}
>>
>> >########### please_wait.html ##########
>>
>> ><html>Please wait
>> ><script type="text/javascript" src="http://code.jquery.com/
>> >jquery-1.7.1.min.js">
>> >$.getJSON('{% url run_DHM %}', function(data) {
>> > if (data == 'OK') {
>> > window.location.href = '{% url displayDHM %}';
>> > } else {
>> > alert(data);
>> > }
>> > });
>> ></script>
>> ></html>
>>
>> >########### display_DHM.html #########
>> ><HTML>
>> ><BODY>END FINALLY!</BODY>
>> ></HTML>
>>
>> >--
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>
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