class transaction(object):
"""
Create an atomic transaction for the given
*table*. All IO actions during the transaction are
executed within a database-local lock.
:param table: A TinyDB table.
"""
_locks = WeakKeyDictionary()
def __init__(self, table):
self.record = Changeset(table)
self.lock = (self._locks.get(table)
or self._locks.setdefault(table, Lock()))
update_callable = records(UpdateCallable)
insert_multiple = records(InsertMultiple)
remove = records(Remove)
def insert(self, row):
return self.insert_multiple((row, ))
def update(self, fields, query=null_query, doc_ids=[], eids=[]):
updator = lambda doc: doc.update(fields)
if eids and doc_ids:
raise TypeError('cannot pass both eids and doc_ids')
return self.update_callable(updator, query, doc_ids, eids)
def __enter__(self):
"""
Enter a transaction.
"""
return self
def __exit__(self, type, value, traceback):
"""
Commits the transaction and raises a traceback
if it is not an ``AbortSignal``. All actions
are executed within a lock.
"""
if not traceback:
with self.lock:
self.record.execute()
return isinstance(value, AbortSignal)
class transaction(object):
"""
Create an atomic transaction for the given
*table*. All IO actions during the transaction are
executed within a database-local lock.
:param table: A TinyDB table.
"""
_locks = WeakKeyDictionary()
def __init__(self, table):
self.record = Changeset(table)
self.lock = (self._locks.get(table) or
self._locks.setdefault(table, Lock()))
update_callable = records(UpdateCallable)
insert_multiple = records(InsertMultiple)
remove = records(Remove)
def insert(self, row):
return self.insert_multiple((row,))
def update(self, fields, query=null_query, doc_ids=[], eids=[]):
updator = lambda doc: doc.update(fields)
if eids and doc_ids:
raise TypeError('cannot pass both eids and doc_ids')
return self.update_callable(updator, query, doc_ids, eids)
def __enter__(self):
"""
Enter a transaction.
"""
return self
def __exit__(self, type, value, traceback):
"""
Commits the transaction and raises a traceback
if it is not an ``AbortSignal``. All actions
are executed within a lock.
"""
if not traceback:
with self.lock:
self.record.execute()
return isinstance(value, AbortSignal)
class transaction:
"""
Create an atomic transaction for the given
*table*. All IO actions during the transaction are
executed within a database-local lock.
:param table: A TinyDB table.
"""
_locks = WeakKeyDictionary()
def __init__(self, table):
self.record = Changeset(table)
self.lock = (self._locks.get(table)
or self._locks.setdefault(table, Lock()))
insert_multiple = records(InsertMultiple)
update = records(Update)
remove = records(Remove)
def insert(self, row):
return self.insert_multiple((row, ))
def __enter__(self):
"""
Enter a transaction.
"""
return self
def __exit__(self, type, value, traceback):
"""
Commits the transaction and raises a traceback
if it is not an ``AbortSignal``. All actions
are executed within a lock.
"""
if not traceback:
with self.lock:
self.record.execute()
return isinstance(value, AbortSignal)
def __init__(self, table):
self.record = Changeset(table)
self.lock = (self._locks.get(table) or
self._locks.setdefault(table, RLock()))
def __init__(self, table):
self.record = Changeset(table)
self.lock = (self._locks.get(table)
or self._locks.setdefault(table, Lock()))
