Tom - many thanks again.
This is good stuff.
W
On 3 November 2010 11:36, Tom Evans <tevans...@googlemail.com> wrote:
> On Wed, Nov 3, 2010 at 10:16 AM, wawa wawawa <wazawaz...@gmail.com> wrote:
>> You Sir, are awesome.
>>
>> I think this seems to be exactly what I was looking for...
>>
>> Can I ask for JS code that does the periodic polling from the client
>> please and possibly the appropriate bits of the template?
>>
>> Many thanks!
>>
>> W
>>
>
> Sure. In the main page view, I check to see whether I have transcoded
> or started transcoding the episode, and set context variables as
> appropriate:
>
> if episode.ipad_media:
> if hasattr(episode.ipad_media, 'task_id'):
> from transcoding.utils import get_task_progress
> data['ipad_media_class'] = 'transcoding'
> data['ipad_media_progress'] = (episode.ipad_media.task_id,
> get_task_progress(episode.ipad_media.task_id))
> else:
> data['ipad_media_class'] = 'good'
> else:
> data['ipad_media_class'] = 'bad'
>
> This is rendered into a widget on the page:
>
> {% if episode.media %}
> <div class='pushbutton'>
> <div class='button play'>Play episode</div>
> <div class='button ipad_{{ ipad_media_class }} {{ ipad_media_class }}'>
> {% if ipad_media_progress %}
> Transcoding to ipad
> <div class='pct' id='{{ ipad_media_progress.0 }}'>{{
> ipad_media_progress.1 }} %</div>
> {% else %}
> Transcode to ipad
> {% endif %}
> </div>
> </div>
> {% endif %}
>
>
> Then, during page load, I configure an observer to update each
> progress widget (I use the prototype JS framework):
>
> $$('div.pct').each(function(ctl) {
> new Ajax.PeriodicalUpdater(ctl, '{% url transcode_task_status_ajax %}', {
> method: 'get',
> asynchronous: true,
> frequency: 3,
> decay: 2,
> parameters: { task_id: ctl.id }
> });
> });
>
> That view is trivial, since it just updates the appropriate div with
> the current percentage:
>
> def transcode_task_status_ajax(request):
> from transcoding.utils import get_task_progress
> task_id = request.GET.get('task_id')
> return HttpResponse(u'%s %%' % get_task_progress(task_id))
>
>
> Cheers
>
> Tom
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en.
