def get(self, request, response, _appname, _modelname):
"""Return a HAL formatted version of the instance list.
"""
root = get_slumber_root()
hal = Builder(self())
hal.add_link('model', root + self.model.path)
query = self.model.model.objects
hal_instance_list(self, request.GET, hal, query)
response["instances"] = hal.as_object()
response.root = 'instances'
def hal_instance_list(operation, control, builder, query_set, page_size=10):
"""Return a page of JSON-HAL based results across the query set.
"""
from slumber import data_link
starter = control.get('lpk', None)
if starter:
query_set = query_set.filter(pk__lt=starter)
lpk = None
for instance in query_set.order_by('-pk').iterator():
if page_size == 0:
builder.add_link('next', operation(lpk=lpk))
return
else:
page_size -= 1
lpk = instance.pk
item = Builder(data_link(instance))
item.set_property('display', unicode(instance))
builder.embed('page', item)
