Thank you very much!
So you mean if I want pass the 'tags' list to the javascrip, the your code
example should be added in the views.py. After that, I can use the list by
using var x = {{variable_to_insert_into_template}} in my javascript?
Regards
Min
Quoting Alex Robbins <alexander.j.robb...@gmail.com>:
>
> Sorry, a code sample would have been more helpful.
>
> With a python variable "tags" that has a list of tags to pass to js,
> it would look roughly like this:
>
> tags = ['fun', 'exciting', 'cool']
> from django.utils import simplejson
> variable_to_insert_into_template = "<script>%s</script>" %
> simplejson.dumps(tags)
>
> Pass variable_to_insert_into_template to the template and then just
> put {{variable_to_insert_into_template}} somewhere in your code.
>
> Just my 2 cents.
>
> On Jan 30, 10:42燼m, Alex Robbins <alexander.j.robb...@gmail.com>
> wrote:
> > You might also consider using simplejson to dump the python variable
> > into something that JavaScript could understand. (This way you can
> > pass more complicated variables like an array or an object.) I
> > recently did that to get a list of tags out to some javascript on the
> > front end.
> >
> > On Jan 29, 11:33爌m, Malcolm Tredinnick <malc...@pointy-stick.com>
> > wrote:
> >
> > > On Thu, 2009-01-29 at 21:11 -0800, min wrote:
> > > > Hi.
> >
> > > > First, the code in the forms.py:
> >
> > > > class TestForm(forms.Form):
> > > > ??name = forms.CharField( max_length=30 )
> >
> > > > Then, the variable is defined in the views.py:
> >
> > > > def Test_page(request):
> > > > ??form = TestForm()
> > > > ??show_results = False
> > > > ??variable = ''
> > > > ??if request.GET.has_key('name'):
> > > > ????show_results = True
> > > > ????query = request.GET['name'].strip()
> > > > ????variable ? 'custom value'
> > > > ??variables = RequestContext(request, {
> > > > ????'form': form,
> > > > ????'show_results': show_results,
> > > > ????'variable': variable
> > > > ????爙)
> > > > ??return render_to_response('Test.html', variables)
> >
> > > > I know the value of variable can be accessed by using {{variable}}
> in
> > > > the Test.html. However, if I want use the jQuery in the Test.html
> and
> > > > pass the value of this variable to the jQuery function, how to do
> > > > that?
> >
> > > > I have tried: var x = $("variable").val(), and not succeed.
> >
> > > The context dictionary you pass to render_to_response is used by
> > > render_to_response to produce a string. That string is what is sent
> back
> > > to the browsers. The variables (parameters, whatever we want to
> call
> > > them) are shoved into the template -- in a nice way; they're made
> very
> > > comfortable -- and become static data in the final result. That is,
> they
> > > are *not* variables from the browser's perspective. Template
> rendering
> > > happens fully on the server side.
> >
> > > If you want to access this data via Javascript, you first have to
> make
> > > it available as a Javascript variable in the template. For example,
> you
> > > could write this in your template (inside a script block).
> >
> > > ????var x = "{{ variable|escape_js }}";
> >
> > > The {{...}} bit is converted to a string by the (server-side)
> template
> > > rendering. Then "x" is available to the browser-side Javascript.
> Clear
> > > as mud?
> >
> > > Regards,
> > > Malcolm
> >
>
>
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