class Work_order_maintainer_skill_grid(Modello_grid):
""" List of maintainers joined with skills """
queryset = Maintainer_skill.objects.filter(maintainer_key__usable=True)
def get_items(self, request):
""" Transform QuerySet in ValueQuerySet """
paginator, page, items = Modello_grid.get_items(self, request)
items = items.values(*self.get_field_names())
return paginator, page, items
