def filterchain_all(request, app, model, field, value):
Model = get_model(app, model)
if value == '0':
keywords = {str("%s__isnull" % field): True}
else:
keywords = {str(field): str(value)}
results = list(Model.objects.filter(**keywords))
results.sort(cmp=locale.strcoll, key=lambda x: unicode_sorter(unicode(x)))
final = []
for item in results:
final.append({'value': item.pk, 'display': unicode(item)})
results = list(Model.objects.exclude(**keywords))
results.sort(cmp=locale.strcoll, key=lambda x: unicode_sorter(unicode(x)))
final.append({'value': "", 'display': "---------"})
for item in results:
final.append({'value': item.pk, 'display': unicode(item)})
json = simplejson.dumps(final)
return HttpResponse(json, mimetype='application/json')
def filterchain_all(request, app, model, field, value):
Model = get_model(app, model)
if value == '0':
keywords = {str("%s__isnull" % field):True}
else:
keywords = {str(field): str(value)}
results = list(Model.objects.filter(**keywords))
results.sort(cmp=locale.strcoll, key=lambda x:unicode_sorter(unicode(x)))
final = []
for item in results:
final.append({'value':item.pk, 'display':unicode(item)})
results = list(Model.objects.exclude(**keywords))
results.sort(cmp=locale.strcoll, key=lambda x:unicode_sorter(unicode(x)))
final.append({'value':"", 'display':"---------"})
for item in results:
final.append({'value':item.pk, 'display':unicode(item)})
json = simplejson.dumps(final)
return HttpResponse(json, mimetype='application/json')
def render(self, name, value, attrs=None, choices=()):
if len(name.split('-')) > 1: # formset
chain_field = '-'.join(name.split('-')[:-1] + [self.chain_field])
else:
chain_field = self.chain_field
if self.show_all:
url = "/".join(reverse("chained_filter_all", kwargs={'app':self.app_name, 'model':self.model_name, 'field':self.model_field, 'value':"1"}).split("/")[:-2])
else:
url = "/".join(reverse("chained_filter", kwargs={'app':self.app_name, 'model':self.model_name, 'field':self.model_field, 'value':"1"}).split("/")[:-2])
if self.auto_choose:
auto_choose = 'true'
else:
auto_choose = 'false'
empty_label = iter(self.choices).next()[1] # Hacky way to getting the correct empty_label from the field instead of a hardcoded '--------'
js = """
<script type="text/javascript">
//<![CDATA[
(function($) {
function fireEvent(element,event){
if (document.createEventObject){
// dispatch for IE
var evt = document.createEventObject();
return element.fireEvent('on'+event,evt)
}
else{
// dispatch for firefox + others
var evt = document.createEvent("HTMLEvents");
evt.initEvent(event, true, true ); // event type,bubbling,cancelable
return !element.dispatchEvent(evt);
}
}
function dismissRelatedLookupPopup(win, chosenId) {
var name = windowname_to_id(win.name);
var elem = document.getElementById(name);
if (elem.className.indexOf('vManyToManyRawIdAdminField') != -1 && elem.value) {
elem.value += ',' + chosenId;
} else {
elem.value = chosenId;
}
fireEvent(elem, 'change');
win.close();
}
$(document).ready(function(){
function fill_field(val, init_value){
if (!val || val==''){
options = '<option value="">%(empty_label)s<'+'/option>';
$("#%(id)s").html(options);
$('#%(id)s option:first').attr('selected', 'selected');
$("#%(id)s").trigger('change');
return;
}
$.getJSON("%(url)s/"+val+"/", function(j){
var options = '<option value="">%(empty_label)s<'+'/option>';
for (var i = 0; i < j.length; i++) {
options += '<option value="' + j[i].value + '">' + j[i].display + '<'+'/option>';
}
$("#%(id)s").html(options);
$('#%(id)s option:first').attr('selected', 'selected');
var auto_choose = %(auto_choose)s;
if(init_value){
$('#%(id)s option[value="'+ init_value +'"]').attr('selected', 'selected');
}
if(auto_choose && j.length == 1){
$('#%(id)s option[value="'+ j[0].value +'"]').attr('selected', 'selected');
}
$("#%(id)s").trigger('change');
})
}
if(!$("#id_%(chainfield)s").hasClass("chained")){
var val = $("#id_%(chainfield)s").val();
fill_field(val, "%(value)s");
}
$("#id_%(chainfield)s").change(function(){
var start_value = $("#%(id)s").val();
var val = $(this).val();
fill_field(val, start_value);
})
})
})(jQuery || django.jQuery);
//]]>
</script>
""" % {"chainfield":chain_field, "url":url, "id":attrs['id'], 'value':value, 'auto_choose':auto_choose, 'empty_label': empty_label}
final_choices = []
if value:
item = self.queryset.filter(pk=value)[0]
try:
pk = getattr(item, self.model_field + "_id")
filter = {self.model_field:pk}
except AttributeError:
try: # maybe m2m?
pks = getattr(item, self.model_field).all().values_list('pk', flat=True)
filter = {self.model_field + "__in":pks}
except AttributeError:
try: # maybe a set?
pks = getattr(item, self.model_field + "_set").all().values_list('pk', flat=True)
filter = {self.model_field + "__in":pks}
except: # give up
filter = {}
filtered = list(get_model(self.app_name, self.model_name).objects.filter(**filter).distinct())
filtered.sort(cmp=locale.strcoll, key=lambda x:unicode_sorter(unicode(x)))
for choice in filtered:
final_choices.append((choice.pk, unicode(choice)))
if len(final_choices) > 1:
final_choices = [("", (empty_label))] + final_choices
if self.show_all:
final_choices.append(("", (empty_label)))
self.choices = list(self.choices)
self.choices.sort(cmp=locale.strcoll, key=lambda x:unicode_sorter(x[1]))
for ch in self.choices:
if not ch in final_choices:
final_choices.append(ch)
self.choices = ()
final_attrs = self.build_attrs(attrs, name=name)
if 'class' in final_attrs:
final_attrs['class'] += ' chained'
else:
final_attrs['class'] = 'chained'
output = super(ChainedSelect, self).render(name, value, final_attrs, choices=final_choices)
output += js
return mark_safe(output)
