def delete_favourite(username, post_id):
""" Removes the specified post from the user's set of favourites. """
if _is_user_created(username):
post_id = str(post_id)
db.srem(username + APPEND_KEY_FAVS, str(post_id))
return True
else:
return False
def delete_tag_user_tags(username, tag):
"""
Deletes a tag from the user's set of tags
and from the posts the user has written.
"""
debug("DELETE TAG :" + tag + ", from:" + username)
db.srem(username + APPEND_KEY_TAG, tag)
_delete_tag_from_all_user_posts(username, tag)
def delete_tag_from_post(post_id, tag):
"""
Deletes a tag from the post's set of tags
"""
debug("DELETE TAG from post. tag:" + tag + ", post #:" + str(post_id))
if _is_post_created(post_id):
db.srem(db.hget(post_id + APPEND_KEY_POSTS, KEY_TAGS) + APPEND_KEY_TAG, tag)
# Decrement the score
_inc_dec_tag(tag, False)
# Delete from the sorted set of tag-name -- post-ids
_remove_post_tag_name(post_id, tag)
def get_favourites(username):
""" Returns a list of posts favourited by the given user. """
if _is_user_created(username):
ret = []
to_delete = []
for post_id in db.smembers(username + APPEND_KEY_FAVS):
post = get_post(post_id)
if post == None:
# Delete from the favourite set
to_delete.append(post_id)
else:
ret.append(post)
if len(to_delete) > 0:
for item in to_delete:
db.srem(username + APPEND_KEY_FAVS, item)
return ret
else:
return None
def delete_sensor_from_node(node_id, sensor_id): """ Deletes a sensor from the node.""" db.srem(KEY_LIST_SENSORS_IN_NODE + str(node_id), str(sensor_id)) db.delete(KEY_SENSORS + str(sensor_id))
def sendNogrids(obj, func, **kwargs):
for uid in db.smembers("nogrid"):
if uid not in obj.clients:
db.srem("nogrid", uid)
else:
obj.clients[uid].call(func, **kwargs)
def _delete_symbol_index(symbol):
""" Removes a symbol from the index. """
if len(symbol) == 1:
db.srem(GLOBAL_INDEX_LETTER_TAG, symbol.upper())
def _remove_post_tag_name(post_id, tag_name):
""" Removes a post-id form the set of tag-name -- post-ids. """
db.srem(tag_name + APPEND_TAG_NAME_POSTS, str(post_id))
if db.scard(tag_name + APPEND_TAG_NAME_POSTS) == 0:
db.delete(tag_name + APPEND_TAG_NAME_POSTS)