def revise(self, content, previous = None, author=None, force=False, reason=None):
if content is None:
content = ""
if self.content == content:
return
force = True if previous is None else force
max_length = special_length_restrictions_bytes.get(self.name, MAX_PAGE_LENGTH_BYTES)
if len(content) > max_length:
raise ContentLengthError(max_length)
revision = getattr(self, 'revision', None)
if not force and (revision and previous != revision):
if previous:
origcontent = WikiRevision.get(previous, pageid=self._id).content
else:
origcontent = ''
try:
content = threewaymerge(origcontent, content, self.content)
except ConflictException as e:
e.new_id = revision
raise e
wr = WikiRevision.create(self._id, content, author, reason)
self.content = content
self.last_edit_by = author
self.last_edit_date = wr.date
self.revision = str(wr._id)
self._commit()
LastModified.touch(self._fullname, "Edit")
return wr
def add_comment_tree(comments):
# update the comment cache
add_comments(comments)
# update last modified
links = Link._byID(list(set(com.link_id for com in tup(comments))), data=True, return_dict=False)
for link in links:
set_last_modified(link, "comments")
LastModified.touch(link._fullname, "Comments")
def _commit(self, *a, **kw):
assert self._id == self._rowkey(self.thing1_id, self.thing2_id)
retval = ThingBase._commit(self, *a, **kw)
from r2.models.last_modified import LastModified
fullname = self._thing1_cls._fullname_from_id36(self.thing1_id)
LastModified.touch(fullname, self._cf.column_family)
return retval
def update_vote_lookups(user, thing, direction):
"""Store info about the existence of this vote (before processing)."""
# set the vote in memcached so the UI gets updated immediately
key = prequeued_vote_key(user, thing)
grace_period = int(g.vote_queue_grace_period.total_seconds())
direction = Vote.serialize_direction(direction)
g.cache.set(key, direction, time=grace_period+1)
# update LastModified immediately to help us cull prequeued_vote lookups
rel_cls = VotesByAccount.rel(thing.__class__)
LastModified.touch(user._fullname, rel_cls._last_modified_name)
def update_last_visit(self, current_time):
from admintools import apply_updates
apply_updates(self)
prev_visit = LastModified.get(self._fullname, "Visit")
if prev_visit and current_time - prev_visit < timedelta(days=1):
return
g.log.debug("Updating last visit for %s from %s to %s" % (self.name, prev_visit, current_time))
LastModified.touch(self._fullname, "Visit")
def update_last_visit(self, current_time):
from admintools import apply_updates
apply_updates(self)
#prev_visit = getattr(self, 'last_visit', None)
prev_visit = last_visit(self)
if prev_visit and current_time - prev_visit < timedelta(1):
return
g.log.debug ("Updating last visit for %s from %s to %s" %
(self.name, prev_visit, current_time))
set_last_visit(self)
LastModified.touch(self._fullname, "Visit")
def update_last_visit(self, current_time):
from admintools import apply_updates
apply_updates(self)
prev_visit = LastModified.get(self._fullname, "Visit")
if prev_visit and current_time - prev_visit < timedelta(days=1):
return
g.log.debug("Updating last visit for %s from %s to %s" %
(self.name, prev_visit, current_time))
LastModified.touch(self._fullname, "Visit")
self.last_visit = int(time.time())
self._commit()
def handle_vote(user,
thing,
dir,
ip,
organic,
cheater=False,
foreground=False):
from r2.lib.db import tdb_sql
from sqlalchemy.exc import IntegrityError
try:
v = Vote.vote(user, thing, dir, ip, organic, cheater=cheater)
except (tdb_sql.CreationError, IntegrityError):
g.log.error("duplicate vote for: %s" % str((user, thing, dir)))
return
timestamps = []
if isinstance(thing, Link):
new_vote(v, foreground=foreground)
#update the modified flags
if user._id == thing.author_id:
timestamps.append('Overview')
timestamps.append('Submitted')
#update sup listings
sup.add_update(user, 'submitted')
#update sup listings
if dir:
timestamps.append('Liked')
sup.add_update(user, 'liked')
elif dir is False:
timestamps.append('Disliked')
sup.add_update(user, 'disliked')
elif isinstance(thing, Comment):
#update last modified
if user._id == thing.author_id:
timestamps.append('Overview')
timestamps.append('Commented')
#update sup listings
sup.add_update(user, 'commented')
for timestamp in timestamps:
set_last_modified(user, timestamp.lower())
LastModified.touch(user._fullname, timestamps)
def handle_vote(user, thing, dir, ip, organic,
cheater=False, foreground=False, timer=None):
if timer is None:
timer = SimpleSillyStub()
from r2.lib.db import tdb_sql
from sqlalchemy.exc import IntegrityError
try:
v = Vote.vote(user, thing, dir, ip, organic, cheater = cheater,
timer=timer)
except (tdb_sql.CreationError, IntegrityError):
g.log.error("duplicate vote for: %s" % str((user, thing, dir)))
return
timestamps = []
if isinstance(thing, Link):
new_vote(v, foreground=foreground, timer=timer)
#update the modified flags
if user._id == thing.author_id:
timestamps.append('Overview')
timestamps.append('Submitted')
#update sup listings
sup.add_update(user, 'submitted')
#update sup listings
if dir:
sup.add_update(user, 'liked')
elif dir is False:
sup.add_update(user, 'disliked')
elif isinstance(thing, Comment):
#update last modified
if user._id == thing.author_id:
timestamps.append('Overview')
timestamps.append('Commented')
#update sup listings
sup.add_update(user, 'commented')
timer.intermediate("sup")
for timestamp in timestamps:
set_last_modified(user, timestamp.lower())
LastModified.touch(user._fullname, timestamps)
timer.intermediate("last_modified")
def update_last_visit(self, current_time):
from admintools import apply_updates
timer = g.stats.get_timer("account.update_last_visit")
timer.start()
apply_updates(self, timer)
prev_visit = LastModified.get(self._fullname, "Visit")
timer.intermediate("get_last_modified")
if prev_visit and current_time - prev_visit < timedelta(days=1):
timer.intermediate("set_last_modified.noop")
timer.stop()
return
LastModified.touch(self._fullname, "Visit")
timer.intermediate("set_last_modified.done")
timer.stop()
def update_last_visit(self, current_time):
from admintools import apply_updates
timer = g.stats.get_timer("account.update_last_visit")
timer.start()
apply_updates(self, timer)
prev_visit = LastModified.get(self._fullname, "Visit")
timer.intermediate("get_last_modified")
if prev_visit and current_time - prev_visit < timedelta(days=1):
timer.intermediate("set_last_modified.noop")
timer.stop()
return
LastModified.touch(self._fullname, "Visit")
timer.intermediate("set_last_modified.done")
timer.stop()
def create(cls, thing1, thing2s, **kw):
"""Create a relationship between thing1 and thing2s.
If there are any other views of this data, they will be updated as
well.
Takes kwargs which can be used by views
or value_for to get additional information.
"""
thing2s = tup(thing2s)
values = {thing2._id36 : cls.value_for(thing1, thing2, **kw)
for thing2 in thing2s}
cls._cf.insert(thing1._id36, values, ttl=cls._ttl)
for view in cls._views:
view.create(thing1, thing2s, **kw)
if cls._write_last_modified:
from r2.models.last_modified import LastModified
LastModified.touch(thing1._fullname, cls._last_modified_name)
def revise(self,
content,
previous=None,
author=None,
force=False,
reason=None):
if content is None:
content = ""
if self.content == content:
return
force = True if previous is None else force
max_length = special_length_restrictions_bytes.get(
self.name, MAX_PAGE_LENGTH_BYTES)
if len(content) > max_length:
raise ContentLengthError(max_length)
revision = getattr(self, 'revision', None)
if not force and (revision and previous != revision):
if previous:
origcontent = WikiRevision.get(previous,
pageid=self._id).content
else:
origcontent = ''
try:
content = threewaymerge(origcontent, content, self.content)
except ConflictException as e:
e.new_id = revision
raise e
wr = WikiRevision.create(self._id, content, author, reason)
self.content = content
self.last_edit_by = author
self.last_edit_date = wr.date
self.revision = str(wr._id)
self._commit()
LastModified.touch(self._fullname, "Edit")
return wr
def fast_query(cls, thing1, thing2s):
"""Find relationships between thing1 and various thing2s."""
thing2s, thing2s_is_single = tup(thing2s, ret_is_single=True)
if not thing1:
return {}
# don't bother looking up relationships for items that were created
# since the last time the thing1 created a relationship of this type
if cls._last_modified_name:
from r2.models.last_modified import LastModified
timestamp = LastModified.get(thing1._fullname,
cls._last_modified_name)
if timestamp:
thing2s = [thing2 for thing2 in thing2s
if thing2._date <= timestamp]
else:
thing2s = []
if not thing2s:
return {}
# fetch the row from cassandra. if it doesn't exist, thing1 has no
# relation of this type to any thing2!
try:
columns = [thing2._id36 for thing2 in thing2s]
results = cls._cf.get(thing1._id36, columns)
except NotFoundException:
results = {}
# return the data in the expected format
if not thing2s_is_single:
# {(thing1, thing2) : value}
thing2s_by_id = {thing2._id36 : thing2 for thing2 in thing2s}
return {(thing1, thing2s_by_id[k]) : v
for k, v in results.iteritems()}
else:
if results:
assert len(results) == 1
return results.values()[0]
else:
raise NotFound("<%s %r>" % (cls.__name__, (thing1._id36,
thing2._id36)))
def change_password(user, newpassword):
user.password = bcrypt_password(newpassword)
user._commit()
LastModified.touch(user._fullname, 'Password')
return True
def add_comments(self, comments):
impl = self.IMPLEMENTATIONS[self.link.comment_tree_version]
impl.add_comments(self, comments)
utils.set_last_modified(self.link, 'comments')
LastModified.touch(self.link._fullname, 'Comments')
def change_password(user, newpassword):
user.password = bcrypt_password(newpassword)
user._commit()
LastModified.touch(user._fullname, 'Password')
return True
def _fast_query(cls, thing1s, thing2s, properties = None, **kw):
"""Find all of the relations of this class between all of the
members of thing1_ids and thing2_ids"""
thing1s, thing1s_is_single = tup(thing1s, True)
thing2s, thing2s_is_single = tup(thing2s, True)
if not thing1s or not thing2s:
return {}
# grab the last time each thing1 modified this relation class so we can
# know which relations not to even bother looking up
if thing1s:
from r2.models.last_modified import LastModified
fullnames = [cls._thing1_cls._fullname_from_id36(thing1._id36)
for thing1 in thing1s]
timestamps = LastModified.get_multi(fullnames,
cls._cf.column_family)
# build up a list of ids to look up, throwing out the ones that the
# timestamp fetched above indicates are pointless
ids = set()
thing1_ids, thing2_ids = {}, {}
for thing1 in thing1s:
last_modification = timestamps.get(thing1._fullname)
if not last_modification:
continue
for thing2 in thing2s:
key = cls._rowkey(thing1._id36, thing2._id36)
if key in ids:
continue
if thing2._date > last_modification:
continue
ids.add(key)
thing2_ids[thing2._id36] = thing2
thing1_ids[thing1._id36] = thing1
# all relations must load these properties, even if unrequested
if properties is not None:
properties = set(properties)
properties.add('thing1_id')
properties.add('thing2_id')
rels = {}
if ids:
rels = cls._byID(ids, properties=properties).values()
if thing1s_is_single and thing2s_is_single:
if rels:
assert len(rels) == 1
return rels[0]
else:
raise NotFound("<%s %r>" % (cls.__name__,
cls._rowkey(thing1s[0]._id36,
thing2s[0]._id36)))
return dict(((thing1_ids[rel.thing1_id], thing2_ids[rel.thing2_id]), rel)
for rel in rels)
def add_comments(self, comments):
impl = self.IMPLEMENTATIONS[self.link.comment_tree_version]
impl.add_comments(self, comments)
utils.set_last_modified(self.link, 'comments')
LastModified.touch(self.link._fullname, 'Comments')
def _fast_query(cls, thing1s, thing2s, properties=None, **kw):
"""Find all of the relations of this class between all of the
members of thing1_ids and thing2_ids"""
thing1s, thing1s_is_single = tup(thing1s, True)
thing2s, thing2s_is_single = tup(thing2s, True)
if not thing1s or not thing2s:
return {}
# grab the last time each thing1 modified this relation class so we can
# know which relations not to even bother looking up
if thing1s:
from r2.models.last_modified import LastModified
fullnames = [
cls._thing1_cls._fullname_from_id36(thing1._id36)
for thing1 in thing1s
]
timestamps = LastModified.get_multi(fullnames,
cls._cf.column_family)
# build up a list of ids to look up, throwing out the ones that the
# timestamp fetched above indicates are pointless
ids = set()
thing1_ids, thing2_ids = {}, {}
for thing1 in thing1s:
last_modification = timestamps.get(thing1._fullname)
if not last_modification:
continue
for thing2 in thing2s:
key = cls._rowkey(thing1._id36, thing2._id36)
if key in ids:
continue
if thing2._date > last_modification:
continue
ids.add(key)
thing2_ids[thing2._id36] = thing2
thing1_ids[thing1._id36] = thing1
# all relations must load these properties, even if unrequested
if properties is not None:
properties = set(properties)
properties.add('thing1_id')
properties.add('thing2_id')
rels = {}
if ids:
rels = cls._byID(ids, properties=properties).values()
if thing1s_is_single and thing2s_is_single:
if rels:
assert len(rels) == 1
return rels[0]
else:
raise NotFound(
"<%s %r>" %
(cls.__name__,
cls._rowkey(thing1s[0]._id36, thing2s[0]._id36)))
return dict(
((thing1_ids[rel.thing1_id], thing2_ids[rel.thing2_id]), rel)
for rel in rels)
