You can view your js errors by pressing CTRL+SWIFT+J in Firefox but i
highly recommend you to install Firebug addon which allow you to view also
the received data from your ajax request.
On Fri, Dec 16, 2011 at 5:24 AM, yun li <yli0...@gmail.com> wrote:
> Since I am really know nothing about ajax, I am not sure if I
> understand "try changing the return value from the view to a string "
> the right way. I changed the definition of run_DHM this way
>
> def run_DHM(request):
> xx = {'ok':true}
> return(xx)
>
> but still the same as before.
>
> and how I can check if there is any error in JavaScript console in my
> browser ?
>
>
> On 12月15日, 上午8时57分, Brett Epps <brett.e...@quest.com> wrote:
> > 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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