def update(self):
if INextPrevNotNavigable.providedBy(self.context):
return
session = self.request.SESSION
if session.has_key(QUERY): # noqa
query = session[QUERY]
params = convert_to_str(
json.loads(query, object_hook=json_object_hook)
)
catalog = api.portal.get_tool('portal_catalog')
brains = catalog.searchResults(**params)
# if we have too many results, we return and delete session data
max_res = api.portal.get_registry_record('collective.querynextprev.maxresults') or 250
if len(brains) > max_res:
self.is_navigable = False
expire_session_data(self.request)
return
uids = [brain.UID for brain in brains] # noqa #pylint: disable=E1103
context_uid = self.context.UID()
if context_uid in uids and len(uids) > 1:
self.is_navigable = True
context_index = uids.index(context_uid)
self.previous_uids = list(reversed(
get_previous_items(uids, context_index)))
self.next_uids = get_next_items(uids, context_index)
session[PREVIOUS_UIDS] = json.dumps(self.previous_uids)
session[NEXT_UIDS] = json.dumps(self.next_uids)
return # don't delete session data
elif session.has_key(PREVIOUS_UIDS) or session.has_key(NEXT_UIDS): # noqa #pylint: disable=C0301
# context is not in results anymore
# get previous
old_previous = json.loads(session[PREVIOUS_UIDS])
previous_item = first_common_item(uids, old_previous)
if previous_item:
self.is_navigable = True
index = uids.index(previous_item)
self.previous_uids = list(reversed(
get_previous_items(uids, index, include_index=True)))
session[PREVIOUS_UIDS] = json.dumps(self.previous_uids)
# get next
old_next = json.loads(session[NEXT_UIDS])
next_item = first_common_item(uids, old_next)
if next_item:
self.is_navigable = True
index = uids.index(next_item)
self.next_uids = get_next_items(
uids, index, include_index=True)
session[NEXT_UIDS] = json.dumps(self.next_uids)
if previous_item or next_item:
return # don't delete session data
expire_session_data(self.request)
def update(self):
if INextPrevNotNavigable.providedBy(self.context):
return
session = self.request.SESSION
if session.has_key(QUERY): # noqa
query = session[QUERY]
params = convert_to_str(json.loads(query))
catalog = api.portal.get_tool('portal_catalog')
brains = catalog.searchResults(**params)
# if we have too many results, we return and delete session data
max_res = api.portal.get_registry_record('collective.querynextprev.maxresults') or 250
if len(brains) > max_res:
self.is_navigable = False
expire_session_data(self.request)
return
uids = [brain.UID for brain in brains] # noqa #pylint: disable=E1103
context_uid = self.context.UID()
if context_uid in uids and len(uids) > 1:
self.is_navigable = True
context_index = uids.index(context_uid)
self.previous_uids = list(reversed(
get_previous_items(uids, context_index)))
self.next_uids = get_next_items(uids, context_index)
session[PREVIOUS_UIDS] = json.dumps(self.previous_uids)
session[NEXT_UIDS] = json.dumps(self.next_uids)
return # don't delete session data
elif session.has_key(PREVIOUS_UIDS) or session.has_key(NEXT_UIDS): # noqa #pylint: disable=C0301
# context is not in results anymore
# get previous
old_previous = json.loads(session[PREVIOUS_UIDS])
previous_item = first_common_item(uids, old_previous)
if previous_item:
self.is_navigable = True
index = uids.index(previous_item)
self.previous_uids = list(reversed(
get_previous_items(uids, index, include_index=True)))
session[PREVIOUS_UIDS] = json.dumps(self.previous_uids)
# get next
old_next = json.loads(session[NEXT_UIDS])
next_item = first_common_item(uids, old_next)
if next_item:
self.is_navigable = True
index = uids.index(next_item)
self.next_uids = get_next_items(
uids, index, include_index=True)
session[NEXT_UIDS] = json.dumps(self.next_uids)
if previous_item or next_item:
return # don't delete session data
expire_session_data(self.request)
def __call__(self):
request = self.request
session = request.SESSION
if session.has_key(QUERY) and session.has_key(self.uids_param): # noqa
next_uids = convert_to_str(json.loads(session[self.uids_param]))
# reexecute the query to search within most recent results
new_uids = self.get_uids()
# search UID starting from context index in uids
uid = first_common_item(next_uids, new_uids)
if uid is not None:
next_url = api.content.get(UID=uid).absolute_url()
# update uids in session
index = new_uids.index(uid)
previous_uids = list(reversed(
get_previous_items(new_uids, index)))
next_uids = get_next_items(new_uids, index)
session[PREVIOUS_UIDS] = json.dumps(previous_uids)
session[NEXT_UIDS] = json.dumps(next_uids)
request.response.redirect(next_url)
return # don't expire session data
if session.has_key(SEARCH_URL): # noqa
request.response.redirect(session[SEARCH_URL])
else:
request.response.redirect(api.portal.get().absolute_url())
expire_session_data(request)
return
def __call__(self):
request = self.request
session = request.SESSION
if session.has_key(QUERY) and session.has_key(self.uids_param): # noqa
next_uids = convert_to_str(json.loads(session[self.uids_param]))
# reexecute the query to search within most recent results
new_uids = self.get_uids()
# search UID starting from context index in uids
uid = first_common_item(next_uids, new_uids)
if uid is not None:
next_url = api.content.get(UID=uid).absolute_url()
# update uids in session
index = new_uids.index(uid)
previous_uids = list(reversed(
get_previous_items(new_uids, index)))
next_uids = get_next_items(new_uids, index)
session[PREVIOUS_UIDS] = json.dumps(previous_uids)
session[NEXT_UIDS] = json.dumps(next_uids)
request.response.redirect(next_url)
return # don't expire session data
if session.has_key(SEARCH_URL): # noqa
request.response.redirect(session[SEARCH_URL])
else:
request.response.redirect(api.portal.get().absolute_url())
expire_session_data(request)
return
def test_get_next_items(self):
"""Test get_next_items function."""
l = range(40)
index = 19
self.assertEqual(
get_next_items(l, index),
range(20, 30)
)
index = 35
self.assertEqual(
get_next_items(l, index),
range(36, 40)
)
self.assertEqual(
get_next_items(l, index, include_index=True),
range(35, 40)
)
def test_get_next_items(self):
"""Test get_next_items function."""
lst = range(40)
index = 19
self.assertEqual(
get_next_items(lst, index),
range(20, 30)
)
index = 35
self.assertEqual(
get_next_items(lst, index),
range(36, 40)
)
self.assertEqual(
get_next_items(lst, index, include_index=True),
range(35, 40)
)