def get_toc_json():
"""
Returns JSON representation of TOC.
"""
toc_json = scache.get_cache_elem('toc_json_cache')
if toc_json:
return toc_json
toc = get_toc()
toc_json = json.dumps(toc)
scache.set_cache_elem('toc_json_cache', toc_json, 600000)
return toc_json
def get_toc_json():
"""
Returns JSON representation of TOC.
"""
toc_json = scache.get_cache_elem('toc_json_cache')
if toc_json:
return toc_json
toc = get_toc()
toc_json = json.dumps(toc)
scache.set_cache_elem('toc_json_cache', toc_json, 600000)
return toc_json
def save_toc_to_db():
"""
Saves table of contents to MongoDB.
(This write can be slow.)
"""
db.summaries.remove()
toc_doc = {
"name": "toc",
"contents": scache.get_cache_elem('toc_cache'),
"dateSaved": datetime.now(),
}
db.summaries.save(toc_doc)
def save_toc_to_db():
"""
Saves table of contents to MongoDB.
(This write can be slow.)
"""
db.summaries.remove()
toc_doc = {
"name": "toc",
"contents": scache.get_cache_elem('toc_cache'),
"dateSaved": datetime.now(),
}
db.summaries.save(toc_doc)
def get_toc():
"""
Returns table of contents object from cache,
DB or by generating it, as needed.
"""
toc_cache = scache.get_cache_elem('toc_cache')
if toc_cache:
return toc_cache
toc = get_toc_from_db()
if toc:
save_toc(toc)
return toc
return update_table_of_contents()
def get_topics():
"""
Returns the TopicsManager which may already be in memory,
be restored from Redis or may be built from scratch.
"""
global topics
global topics_timestamp
# If Redis timestamp matches what we have in memory, return it
current_timestamp = scache.get_cache_elem('topics_timestamp')
if current_timestamp and topics_timestamp == current_timestamp:
return topics
# If Redis timestamp differs, load data from Redis
elif current_timestamp:
pickled = scache.get_cache_elem('topics')
topics = pickle.loads(pickled)
topics_timestamp = current_timestamp
return topics
# If there's nothing in Redis, return a new manager
topics = TopicsManager()
topics_timestamp = topics.timestamp()
return topics
def get_topics():
"""
Returns the TopicsManager which may already be in memory,
may be restored from Redis or may be built from scratch.
"""
global topics
global topics_timestamp
# If Redis timestamp matches what we have in memory, return it
current_timestamp = scache.get_cache_elem('topics_timestamp')
if current_timestamp and topics_timestamp == current_timestamp:
return topics
# If Redis timestamp differs, load data from Redis
elif current_timestamp:
pickled = scache.get_cache_elem('topics')
topics = pickle.loads(pickled)
topics_timestamp = current_timestamp
return topics
# If there's nothing in Redis, return a new manager
topics = TopicsManager()
topics_timestamp = topics.timestamp()
return topics
def get_toc():
"""
Returns table of contents object from cache,
DB or by generating it, as needed.
"""
toc_cache = scache.get_cache_elem('toc_cache')
if toc_cache:
return toc_cache
toc = get_toc_from_db()
if toc:
save_toc(toc)
return toc
return update_table_of_contents()
