On Sun, 2009-04-12 at 23:37 +1000, Joshua Partogi wrote:
> Dear all,
>
> I want to send and display validation error message from the view to
> the template, how do I do this in Django? I tried searching on the
> documents but could not find any topics on error message. Could anyone
> give me a hint on how to do this?
Do you mean validation errors that are generated by a form when calling
is_valid()? If so, this happens automatically when the form is
redisplayed:
def my_view(request, ...):
if request.method == "POST":
form = MyForm(request.POST)
if form.is_valid():
...
else:
# The "GET" path
form = MyForm()
ctxt = {
"form": form,
...
}
return render_to_response("my_template.html", ctxt)
In this sort of path, if an error occurs in the form, the form object
passed back to the template is the version with the data populated and
errors in place. So when the template displays the form, it will no
longer be an empty form (like it was the first time), but a form with
the initial submission filled in and error messages available.
This is documented ([1]) but it's not necessarily the easiest thing to
find at the moment.
[1]
http://docs.djangoproject.com/en/dev/ref/forms/api/#how-errors-are-displayed
Is that what you were after?
Regards,
Malcolm
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