class UpdateTagUIOrder(TemplateView):
""" display the widget for the master_ui_edit_tag_order field as updated
based on the value of the master_ui_edit_tags field on
MasterUIMappingsOrganizationView edit form.
"""
def __init__(self, **kwargs):
self.widget = SetupTagUISortedCheckboxSelectMultiple()
def choice_iterator(self):
for uimap in self.queryset:
yield (uimap.pk, uimap.tag.__unicode__())
def post(self, request, *args, **kwargs):
""" add or remove checkbox items to the order field based on contents
of the master_ui_edit_tags field. UIMappings may not exist
corresponding to the chosen tag. UIMappings will never exist for
a newly created MasterUI.
"""
tag_vals = [Tag.objects.filter(pk=t)[0] for t in request.POST.getlist(
'tags[]')]
mui = request.POST.getlist('mui')[0]
if mui:
self.queryset = UIMapping.objects.select_related('tag'
).filter(master_ui__pk=mui, tag__in=tag_vals).order_by('index')
filtered = self.queryset.filter(default=True)
else:
self.queryset = UIMapping.objects.none()
filtered = self.queryset
# if tag id in request is not present in queryset, then we need to
# create a line in the widget for a new empty uimapping. Store the
# tag id in a hidden field on the widget
tags_seen = [map.tag for map in self.queryset]
tags_unseen = [t for t in tag_vals if t not in tags_seen]
html = self.widget.render('master_ui_edit-ui_mappings_tag_order',
value=[uimap.pk for uimap in filtered],
attrs={
'id': 'id_master_ui_edit-ui_mappings_tag_order'},
choices=self.choice_iterator(),
new_maps=tags_unseen,)
return HttpResponse(mark_safe(html))
def __init__(self, **kwargs):
self.widget = SetupTagUISortedCheckboxSelectMultiple()
