def _get_pagination_helper(self, request):
if self._allow_pagination and self._native_pagination:
return api_common.PaginationNativeHelper(request,
self._primary_key)
elif self._allow_pagination:
return api_common.PaginationEmulatedHelper(request,
self._primary_key)
return api_common.NoPaginationHelper(request, self._primary_key)
def _get_pagination_helper(request, controller):
if 'pagination_helper' in request.context:
return request.context['pagination_helper']
if not controller.allow_pagination:
helper = api_common.NoPaginationHelper(request, controller.primary_key)
elif controller.native_pagination:
helper = api_common.PaginationNativeHelper(request,
controller.primary_key)
else:
helper = api_common.PaginationEmulatedHelper(request,
controller.primary_key)
request.context['pagination_helper'] = helper
return helper
def test_custom_primary_key(self):
items = [{'fake_id': item['id']} for item in self.items]
req = FakeRequest(limit=2, marker=self.items[1]['id'])
helper = common.PaginationEmulatedHelper(req, primary_key='fake_id')
self.assertEqual(items[2:4], helper.paginate(items))
def test_paginate_dont_wrap_page_reverse(self):
req = FakeRequest(limit=100,
marker=self.items[1]['id'],
page_reverse=True)
helper = common.PaginationEmulatedHelper(req)
self.assertEqual(self.items[:1], helper.paginate(self.items))
def test_paginate_dont_wrap(self):
req = FakeRequest(limit=100, marker=self.items[1]['id'])
helper = common.PaginationEmulatedHelper(req)
self.assertEqual(self.items[2:], helper.paginate(self.items))
def test_paginate_bad_marker(self):
req = FakeRequest(limit=1, marker='unknown-id')
helper = common.PaginationEmulatedHelper(req)
self.assertEqual([], helper.paginate(self.items))
def test_paginate_limit_higher_than_nitems(self):
req = FakeRequest(limit=len(self.items) + 100)
helper = common.PaginationEmulatedHelper(req)
self.assertEqual(self.items, helper.paginate(self.items))
def test_paginate_high_limit_page_reverse(self):
req = FakeRequest(limit=len(self.items) + 100, page_reverse=True)
helper = common.PaginationEmulatedHelper(req)
self.assertEqual(self.items, helper.paginate(self.items))
def test_paginate_limit_1_page_reverse(self):
req = FakeRequest(limit=1, page_reverse=True)
helper = common.PaginationEmulatedHelper(req)
self.assertEqual(self.items[-1:], helper.paginate(self.items))
def test_paginate_limit_1(self):
req = FakeRequest(limit=1)
helper = common.PaginationEmulatedHelper(req)
self.assertEqual(self.items[:1], helper.paginate(self.items))
def test_paginate_no_limit_several_items(self):
req = FakeRequest()
helper = common.PaginationEmulatedHelper(req)
self.assertEqual(self.items, helper.paginate(self.items))
