Thanks for that example, Steve. I think I have made it past my
problem, but it is always good to see what others are doing. In your
example you have this:
target.innerHTML = (eval(data));
Why do you use eval there? Isn't data just a string, something like
'2009-08-21 11:41'?
Margie
On Aug 20, 3:59 pm, Steve Holden <holden...@gmail.com> wrote:
> Margie:
>
> Here's some code I Use to send the current date-time from a Django view into
> a client-side form using AJAX (in this case jQuery, but I guess you can
> substitute your Javascript extensions of choice.
>
> In the template:
>
> {% for report in my_reports %}
> <tr class="{% cycle 'odd' 'even' %}">
> <td>{{ report.Name }}</td>
> <td>{{report.ReportType.name}}</td>
> <td><a class="rpt_h_{{ report.id }}"
> href="/generate/html/{{report.id}}/"
> target="_blank">html</a></td>
> <td><a class="rpt_c_{{ report.id }}"
> href="/generate/csv/{{report.id}}/">csv</a></td>
> <td><a class="rpt_p_{{ report.id }}"
> href="/generate/pdf/{{report.id}}/"
> target="_blank">pdf</a></td>
> <td align="right">{% if report.RunTime %}{{
> report.RunTime|floatformat:2}}{% endif %}</td>
>
> <td><a href="/reports/edit/summary/{{report.id}}">Edit</a></td>
> <td><a class="jqConfirm"
> href="/reports/delete/{{report.id}}/">Delete</a></td>
>
> <td><span id="runtime_{{ report.id }}">{{ report.ManualRunTS|date:"Y-m-d
> H:i" }}</span></td>
> <td>{% if report.NextRunDate %}{{ report.NextRunDate }}{% endif %}</td>
> </tr>
> {% endfor %}
>
> Report NNN's runtime is displayed as the content of a <span
> id="runtime_NNN"/> element.
>
> The following jQuery code associates a click-processor with each of the
> links:
>
> $("a[class^='rpt_']").click(function(){
> target = $(this).parent().parent().children().eq(8).children("span")[0];
> $.get("/reports/json/timestamp/", function(data) {
> target.innerHTML = (eval(data));
> });
> });
>
> When a link is clicked the jQuery expression assigns to target the span
> element whose
> content must be updated (to correctly show the new "last run time"). It then
> uses the
> jQuery $.get function to receive the (JSON) output of a call to the server
> for its
> current timestamp. This request is dispatched in the usual Django way,
> connecting the
> JavaScript to the following method:
>
> def timestamp(request,):
> rdata = datetime.datetime.today().strftime("%Y-%m-%d %H:%M")
> json = simplejson.dumps(rdata)
> return HttpResponse(json, mimetype="application/json")
>
> The JavaScript dutifully evaluates the returned JSON [phobic security risk:
> it would be
> much better to use a JSON library for this] and replaces any current content
> content
> of the target span.
>
> Hope this helps.
>
> regards
> Steve
>
> On Thu, Aug 20, 2009 at 5:34 PM, Margie Roginski
> <margierogin...@yahoo.com>wrote:
>
>
>
>
>
> > Could someone give me a hand with a very simple ajax problem? I want
> > to post some data and have the server just return a small snippet of
> > html, which I then want to insert into my dom at a particular id.
>
> > Let's say the html snippet to be returned is just a string: <p>hello
> > world</p>.
>
> > Does my views.py function just return it like this?
>
> > return HttpResponse("<p>hello world</p>")
>
> > I have some jquery on client side that is just trying trying to have
> > the callback function throw the returned snippet up in an alert box,
> > like this:
>
> > <input type="submit" onclick="$(.post({% get_my_url %}, $
> > ('id_comment').val(), function(data) { alert(data);}); return false;
> > " />
>
> > I find that I never hit my callback function (the alert(data)).
> > Instead the browser just replaces my with a page containing
>
> > <html><head><body>hello</body></html>
>
> > Could someone give me a pointer as to what I'm doing wrong?
>
> > Margie
>
> --
> Steve Holden +1 571 484 6266 +1 800 494 3119
> Holden Web LLC http://www.holdenweb.com/
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