You would achieve it using "regroup" template tag
First get cities in your view
and create template with code:
var countries = {
{% regroup cities by country as grouped %}
{% for group in grouped %}
"{{ group.grouper.name }}: [
{% for city in group.list %}
'{{city.name}}' ,
{% endfor %} ]
{% endfor %}
}
(If it dosnt work straigt away just look at "regroup" template tag in
the docs - idea is there)
add url of this template to js list in model admin code and thats
all :)
On Nov 20, 11:54 am, Julien <[EMAIL PROTECTED]> wrote:
> Hi,
>
> When I look at the html source code generated for the regular
> ManyToManyField's widget, it's an html form, not javascript...
> Are you sure there is no other way?
>
> Could you please give a full example?
>
> I've spent quite sometime practicing with the tutorials but I'm a bit
> lost on this one.
>
> Thanks a lot!
>
> On Nov 20, 9:04 pm, kamil <[EMAIL PROTECTED]> wrote:
>
> > I dont think there is another way that making your hands dirty with
> > javascript. ;)
> > If you want to be fancy you can even make it ajax - getting the cities
> > on demand
>
> > On Nov 20, 9:35 am, kamil <[EMAIL PROTECTED]> wrote:
>
> > > You can easily generate cities list to the javascript dynamically
> > > writing the template for separate js file.
>
> > > On Nov 20, 9:22 am, Julien <[EMAIL PROTECTED]> wrote:
>
> > > > Hi Kamil,
>
> > > > Thanks a lot for your suggestion!
>
> > > > I have a few remarks though. The list of cities is dynamic, in the
> > > > sense that you may add, remove cities from the database at any time
> > > > using the admin interface.
> > > > So how can we fetch dynamically the list of available cities to
> > > > display them in the select widget?
>
> > > > Also, isn't there a "recommended" way of doing? Hijacking with
> > > > javascript seems more like a trick. I may be wrong.
>
> > > > Thanks! ;)
>
> > > > On Nov 20, 8:13 pm, kamil <[EMAIL PROTECTED]> wrote:
>
> > > > > Hi Julien
>
> > > > > The simple way is hijack city select box with javascript.
> > > > > You add
> > > > > js=['http://herecomespathtoyourscript']
> > > > > to admin options in your model
> > > > > js can look like this:
>
> > > > > var countries = {'england': ['London','Manchester'], 'france':
> > > > > ['Paris'] }
>
> > > > > document.forms['your_form'].id_country.onchange = function()
> > > > > { listCities(this.value) };
>
> > > > > function listCities ( country ) {
> > > > > document.forms['your_form'].id_city.options.length = 0
> > > > > var l = countries[ country ].length;
> > > > > for (var i = 0; l > i; i++) {
> > > > > document.forms['your_form'].id_city.options[i] = new
> > > > > Option( countries[ country ][i], countries[ country ][i]);
> > > > > }
>
> > > > > }
>
> > > > > I hope it helps :)
>
> > > > > On Nov 19, 11:54 pm, Julien <[EMAIL PROTECTED]> wrote:
>
> > > > > > Sorry, my "drawing" came out a bit funny in my previous post. Here's
> > > > > > what I'd like the custom widget to look like:
>
> > > > > > England
> > > > > > [ ] London [ ] Manchester
> > > > > > France
> > > > > > [ ] Paris
> > > > > > Russia
> > > > > > [ ] Moscow
> > > > > > USA
> > > > > > [ ] Los Angeles [ ] New York
>
> > > > > > Thanks for your help!
>
> > > > > > On Nov 20, 10:51 am, Julien <[EMAIL PROTECTED]> wrote:
>
> > > > > > > Hi all,
>
> > > > > > > I'm a Django newbie, and I've been struggling on this for days.
> > > > > > > I've
> > > > > > > also found posts on this group about similar subjects but none
> > > > > > > that
> > > > > > > could directly help me...
>
> > > > > > > Here are the models I've got:
>
> > > > > > > class Country(models.Model):
> > > > > > > name = models.CharField(max_length=50)
> > > > > > > def __unicode__(self):
> > > > > > > return self.name
> > > > > > > class Admin:
> > > > > > > pass
>
> > > > > > > class City(models.Model):
> > > > > > > name = models.CharField(max_length=50)
> > > > > > > country = models.ForeignKey(Country)
> > > > > > > def __unicode__(self):
> > > > > > > return self.name
> > > > > > > class Admin:
> > > > > > > pass
>
> > > > > > > class Person(models.Model):
> > > > > > > firstName = models.CharField(max_length=30)
> > > > > > > lastName = models.CharField(max_length=30)
> > > > > > > citiesLived = models.ManyToManyField(City, null=True,
> > > > > > > blank=True)
> > > > > > > def __unicode__(self):
> > > > > > > return self.firstName + " " + self.lastName
> > > > > > > class Admin:
> > > > > > > pass
>
> > > > > > > In the admin interface, when adding cities to a person's profile,
> > > > > > > you
> > > > > > > get the usual ManyToMany select box.
>
> > > > > > > So you may have:
> > > > > > > New York
> > > > > > > Manchester
> > > > > > > Paris
> > > > > > > London
> > > > > > > Moscow
> > > > > > > Los Angeles
>
> > > > > > > What I'd like to get instead is a custom widget, that is a list of
> > > > > > > checkboxes sorted by country, and in Alphabetic order. E.g.:
> > > > > > > ________________________________________
> > > > > > > |
> > > > > > > England
> > > > > > > |
> > > > > > > | [ ] London [ ]
> > > > > > > Manchester |
> > > > > > > |
> > > > > > > France
> > > > > > > |
> > > > > > > | [ ]
> > > > > > > Paris
> > > > > > > |
> > > > > > > |
> > > > > > > Russia
> > > > > > > |
> > > > > > > | [ ]
> > > > > > > Moscow
> > > > > > > |
> > > > > > > |
> > > > > > > USA
> > > > > > > |
> > > > > > > | [ ] Los Angeles [ ] New York
> > > > > > > |
> > > > > > > |_______________________________________|
>
> > > > > > > Could you give me some advice on how to implement that?
>
> > > > > > > Many thanks!!
>
> > > > > > > Julien
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