async def real_commit(self):
"""Commit changes to an object"""
await self._manager._storage.precommit(self)
for oid, obj in self.added.items():
# Added objects
if obj._p_jar is not self and obj._p_jar is not None:
raise Exception('Invalid reference to txn')
s, l = await self._manager._storage.store(oid, None, IWriter(obj),
obj, self)
obj._p_serial = s
obj._p_oid = oid
if obj._p_jar is None:
obj._p_jar = self
self._to_invalidate.append(oid)
for oid, obj in self.modified.items():
# Modified objects
if obj._p_jar is not self and obj._p_jar is not None:
raise Exception('Invalid reference to txn')
# There is no serial
serial = getattr(obj, "_p_serial", 0)
s, l = await self._manager._storage.store(oid, serial,
IWriter(obj), obj, self)
obj._p_serial = s
if obj._p_jar is None:
obj._p_jar = self
self._to_invalidate.append(oid)
for oid, obj in self.deleted.items():
if obj._p_jar is not self and obj._p_jar is not None:
raise Exception('Invalid reference to txn')
await self._manager._storage.delete(self, oid)
self._to_invalidate.append(oid)
async def initialize(self):
"""
create root object if necessary
"""
request = make_mocked_request('POST', '/')
request._db_write_enabled = True
tm = request._tm = self.get_transaction_manager()
txn = await tm.begin()
try:
await txn._strategy.retrieve_tid()
root = await tm._storage.load(txn, ROOT_ID)
if root is not None:
root = reader(root)
root._p_jar = txn
if root.__db_id__ is None:
root.__db_id__ = self._database_name
await tm._storage.store(ROOT_ID, 0, IWriter(root), root,
txn)
except KeyError:
from guillotina.db.db import Root
root = Root(self._database_name)
await tm._storage.store(ROOT_ID, 0, IWriter(root), root, txn)
finally:
await tm.commit(txn=txn)
def store(self, ob):
writer = IWriter(ob)
self._objects[ob._p_oid] = {
'state': writer.serialize(),
'zoid': ob._p_oid,
'tid': 1,
'id': writer.id,
'children': self._objects.get(ob._p_oid, {}).get('children', {})
}
if ob.__parent__ and ob.__parent__._p_oid in self._objects:
self._objects[ob.__parent__._p_oid]['children'][ob.id] = ob._p_oid
def store(self, ob):
writer = IWriter(ob)
self._objects[ob._p_oid] = {
'state': writer.serialize(),
'zoid': ob._p_oid,
'tid': 1,
'id': writer.id,
'children': self._objects.get(ob._p_oid, {}).get('children', {})
}
if ob.__parent__ and ob.__parent__._p_oid in self._objects:
self._objects[ob.__parent__._p_oid]['children'][ob.id] = ob._p_oid
def store(self, oid, old_serial, writer, ob, txn):
writer = IWriter(ob)
self._objects[ob.__uuid__] = {
"state": writer.serialize(),
"zoid": ob.__uuid__,
"tid": 1,
"id": writer.id,
"children": self._objects.get(ob.__uuid__, {}).get("children", {}),
}
if ob.__parent__ and ob.__parent__.__uuid__ in self._objects:
self._objects[ob.__parent__.__uuid__]["children"][ob.id] = ob.__uuid__
async def _test_pg_txn(postgres, guillotina_main):
"""Test a low level transaction"""
dsn = "postgres://postgres:@localhost:5432/guillotina"
partition_object = "guillotina.db.interfaces.IPartition"
aps = APgStorage(dsn=dsn, partition=partition_object, name='db')
await aps.initialize()
conn = await aps.open()
obj = Root()
writer = IWriter(obj)
tm = TransactionManager(DummyStorage())
txn = Transaction(tm)
await aps.tpc_begin(txn, conn)
await aps.precommit(txn)
await aps.store(ROOT_ID, 0, writer, obj, txn)
await aps.tpc_vote(txn)
await aps.tpc_finish(txn)
await aps.close(conn)
tm = TransactionManager(DummyStorage())
txn = Transaction(tm)
await aps.tpc_begin(txn, conn)
result = await aps.load(txn, ROOT_ID)
await aps.abort(txn)
await aps.close(txn._db_conn)
obj2 = reader(result)
assert obj.__name__ == obj2.__name__
await cleanup(aps)
async def _store_object(self, obj, uid, added=False):
# There is no serial
if added:
serial = None
else:
serial = getattr(obj, "__serial__", None) or 0
writer = IWriter(obj)
await self._manager._storage.store(uid, serial, writer, obj, self)
obj.__serial__ = self._tid
obj.__uuid__ = uid
if obj.__txn__ is None:
obj.__txn__ = self
async def initialize(self):
"""
create root object if necessary
"""
tm = self.get_transaction_manager()
txn = await tm.begin()
try:
await txn._strategy.retrieve_tid()
root = await tm._storage.load(txn, ROOT_ID)
if root is not None:
root = app_settings['object_reader'](root)
root.__txn__ = txn
if root.__db_id__ is None:
root.__db_id__ = self._database_name
await tm._storage.store(ROOT_ID, 0, IWriter(root), root,
txn)
except KeyError:
from guillotina.db.db import Root
root = Root(self._database_name)
await tm._storage.store(ROOT_ID, 0, IWriter(root), root, txn)
finally:
await tm.commit(txn=txn)
async def _store_object(self, obj, uid, added=False):
# Modified objects
if obj.__txn__ is not self and obj.__txn__ is not None:
raise Exception(f'Invalid reference to txn: {obj}')
# There is no serial
if added:
serial = None
else:
serial = getattr(obj, "__serial__", None) or 0
writer = IWriter(obj)
await self._manager._storage.store(uid, serial, writer, obj, self)
obj.__serial__ = self._tid
obj.__uuid__ = uid
if obj.__txn__ is None:
obj.__txn__ = self
async def _process_object(self, obj, data):
if data["count"] % 200 == 0:
await data["tm"].commit(txn=data["transaction"])
data["transaction"] = await data["tm"].begin()
obj.__txn__ = data["transaction"]
uuid = obj.__uuid__
writer = IWriter(obj)
await self._index(uuid, writer, data["transaction"], data["table_name"])
data["count"] += 1
if IFolder.providedBy(obj):
await self._process_folder(obj, data)
del obj
async def _store_object(self, obj, oid, added=False):
# Modified objects
if obj._p_jar is not self and obj._p_jar is not None:
raise Exception(f'Invalid reference to txn: {obj}')
# There is no serial
if added:
serial = None
else:
serial = getattr(obj, "_p_serial", 0)
writer = IWriter(obj)
await self._manager._storage.store(oid, serial, writer, obj, self)
obj._p_serial = self._tid
obj._p_oid = oid
if obj._p_jar is None:
obj._p_jar = self