def test_single_item(self):
tree = {'item': 'A',
'children': []}
data = tuple(flaten_tree(tree))
self.assertEqual(data, ('A',))
def render_previous(self, block_render_threshold=_marker):
"""Render previous blocks.
"""
if block_render_threshold == _marker:
block_render_threshold = RENDER_BLOCKS_PER_REQUEST_THRESHOLD
before_uid = self.request.get('before_uid', '')
loaded_uids = self.request.get('loaded_blocks[]', [])
insert_before = before_uid
if before_uid == '' or not loaded_uids:
# render_next should be called before render_previous, so there
# should already content be loaded.
return '{}'
data = []
brainlist = flaten_tree(self.tree)
previous = []
found = False
for brain in brainlist:
if brain.UID == before_uid:
found = True
break
previous.insert(0, brain)
if not found:
return u'{}'
while block_render_threshold > 0 and len(previous) > 0:
brain = previous.pop(0)
if brain.UID in loaded_uids:
break
block_html = self.render_block(brain)
if not block_html:
continue
data.insert(0, [brain.UID, block_html])
block_render_threshold -= 1
response_data = {
'insert_before': insert_before,
'data': data,
'first_uid': data and data[0][0],
'last_uid': data and data[-1][0]
}
self.request.response.setHeader('Content-Type', 'application/json')
return dumps(response_data)
def render_next(self, block_render_threshold=_marker):
"""Renders the next blocks.
"""
if block_render_threshold == _marker:
block_render_threshold = RENDER_BLOCKS_PER_REQUEST_THRESHOLD
after_uid = self.request.get('after_uid', '')
loaded_uids = self.request.get('loaded_blocks[]', [])
insert_after = after_uid or 'TOP'
data = []
brainlist = flaten_tree(self.tree)
found = False
for brain in brainlist:
if not found and after_uid == '' and \
brain.UID == self.context.UID():
found = True
if not found and brain.UID == after_uid:
found = True
continue
elif not found:
continue
elif found and brain.UID in loaded_uids:
# we already have this block loaded
break
block_html = self.render_block(brain)
if not block_html:
continue
data.append([brain.UID, block_html])
block_render_threshold -= 1
if block_render_threshold == 0:
break
response_data = {
'insert_after': insert_after,
'data': data,
'first_uid': data and data[0][0],
'last_uid': data and data[-1][0]
}
self.request.response.setHeader('Content-Type', 'application/json')
return dumps(response_data)
def render_previous(self, block_render_threshold=_marker):
"""Render previous blocks.
"""
if block_render_threshold == _marker:
block_render_threshold = RENDER_BLOCKS_PER_REQUEST_THRESHOLD
before_uid = self.request.get('before_uid', '')
loaded_uids = self.request.get('loaded_blocks[]', [])
insert_before = before_uid
if before_uid == '' or not loaded_uids:
# render_next should be called before render_previous, so there
# should already content be loaded.
return '{}'
data = []
brainlist = flaten_tree(self.tree)
previous = []
found = False
for brain in brainlist:
if brain.UID == before_uid:
found = True
break
previous.insert(0, brain)
if not found:
return u'{}'
while block_render_threshold > 0 and len(previous) > 0:
brain = previous.pop(0)
if brain.UID in loaded_uids:
break
block_html = self.render_block(brain)
if not block_html:
continue
data.insert(0, [brain.UID, block_html])
block_render_threshold -= 1
response_data = {'insert_before': insert_before,
'data': data,
'first_uid': data and data[0][0],
'last_uid': data and data[-1][0]}
self.request.response.setHeader('Content-Type', 'application/json')
return dumps(response_data)
def render_next(self, block_render_threshold=_marker):
"""Renders the next blocks.
"""
if block_render_threshold == _marker:
block_render_threshold = RENDER_BLOCKS_PER_REQUEST_THRESHOLD
after_uid = self.request.get('after_uid', '')
loaded_uids = self.request.get('loaded_blocks[]', [])
insert_after = after_uid or 'TOP'
data = []
brainlist = flaten_tree(self.tree)
found = False
for brain in brainlist:
if not found and after_uid == '' and \
brain.UID == self.context.UID():
found = True
if not found and brain.UID == after_uid:
found = True
continue
elif not found:
continue
elif found and brain.UID in loaded_uids:
# we already have this block loaded
break
block_html = self.render_block(brain)
if not block_html:
continue
data.append([brain.UID, block_html])
block_render_threshold -= 1
if block_render_threshold == 0:
break
response_data = {'insert_after': insert_after,
'data': data,
'first_uid': data and data[0][0],
'last_uid': data and data[-1][0]}
self.request.response.setHeader('Content-Type', 'application/json')
return dumps(response_data)
def test_recursion(self):
tree = {
'item': 'A',
'children': [
{'item': 'B',
'children': [
{'item': 'C',
'children': []},
{'item': 'D',
'children': []}]},
{'item': 'E',
'children': []}]}
data = tuple(flaten_tree(tree))
self.assertEqual(data, ('A', 'B', 'C', 'D', 'E'))
def test_recursion(self):
tree = {
'item':
'A',
'children': [{
'item':
'B',
'children': [{
'item': 'C',
'children': []
}, {
'item': 'D',
'children': []
}]
}, {
'item': 'E',
'children': []
}]
}
data = tuple(flaten_tree(tree))
self.assertEqual(data, ('A', 'B', 'C', 'D', 'E'))
def test_single_item(self):
tree = {'item': 'A', 'children': []}
data = tuple(flaten_tree(tree))
self.assertEqual(data, ('A', ))
