def save_logbook(self, book):
# Get a existing logbook model (or create it if it isn't there).
try:
e_lb = self.backend.log_books[book.uuid]
except KeyError:
e_lb = logbook.LogBook(book.name, book.uuid,
updated_at=book.updated_at,
created_at=timeutils.utcnow())
self.backend.log_books[e_lb.uuid] = e_lb
else:
# TODO(harlowja): figure out a better way to set this property
# without actually setting a 'private' property.
e_lb._updated_at = timeutils.utcnow()
p_utils.logbook_merge(e_lb, book, deep_copy=True)
# Add anything in to the new logbook that isn't already
# in the existing logbook.
for flow_detail in book:
try:
e_fd = self.backend.flow_details[flow_detail.uuid]
except KeyError:
e_fd = logbook.FlowDetail(name=flow_detail.name,
uuid=flow_detail.uuid)
e_lb.add(flow_detail)
self.backend.flow_details[flow_detail.uuid] = e_fd
p_utils.flow_details_merge(e_fd, flow_detail, deep_copy=True)
self._save_flowdetail_tasks(e_fd, flow_detail)
return e_lb
def save_logbook(self, book):
# Get a existing logbook model (or create it if it isn't there).
try:
e_lb = _logbook_merge(_LOG_BOOKS[book.uuid], book)
# Add anything in to the new logbook that isn't already
# in the existing logbook.
for flow_detail in book:
if e_lb.find(flow_detail.uuid) is None:
_FLOW_DETAILS[flow_detail.uuid] = _copy(flow_detail)
e_lb.add(flow_detail)
if flow_detail.uuid not in _FLOW_DETAILS:
_FLOW_DETAILS[flow_detail.uuid] = _copy(flow_detail)
flow_detail.update(self.update_flow_details(flow_detail))
# TODO(harlowja): figure out a better way to set this property
# without actually setting a 'private' property.
e_lb._updated_at = timeutils.utcnow()
except KeyError:
# Ok the one given is now the one we will save
e_lb = _copy(book)
# TODO(harlowja): figure out a better way to set this property
# without actually setting a 'private' property.
e_lb._created_at = timeutils.utcnow()
# Record all the pieces as being saved.
_LOG_BOOKS[e_lb.uuid] = e_lb
for flow_detail in e_lb:
_FLOW_DETAILS[flow_detail.uuid] = _copy(flow_detail)
flow_detail.update(self.update_flow_details(flow_detail))
return e_lb
def save_logbook(self, book):
# Get a existing logbook model (or create it if it isn't there).
try:
e_lb = self.backend.log_books[book.uuid]
except KeyError:
e_lb = logbook.LogBook(book.name,
book.uuid,
updated_at=book.updated_at,
created_at=timeutils.utcnow())
self.backend.log_books[e_lb.uuid] = e_lb
else:
# TODO(harlowja): figure out a better way to set this property
# without actually setting a 'private' property.
e_lb._updated_at = timeutils.utcnow()
p_utils.logbook_merge(e_lb, book, deep_copy=True)
# Add anything in to the new logbook that isn't already
# in the existing logbook.
for flow_detail in book:
try:
e_fd = self.backend.flow_details[flow_detail.uuid]
except KeyError:
e_fd = logbook.FlowDetail(name=flow_detail.name,
uuid=flow_detail.uuid)
e_lb.add(flow_detail)
self.backend.flow_details[flow_detail.uuid] = e_fd
p_utils.flow_details_merge(e_fd, flow_detail, deep_copy=True)
self._save_flowdetail_tasks(e_fd, flow_detail)
return e_lb
def add(self, fd):
"""Adds a new entry to the underlying logbook.
Does not *guarantee* that the details will be immediately saved.
"""
self._flowdetails_by_id[fd.uuid] = fd
self.updated_at = timeutils.utcnow()
def delete(self, session=None):
"""Delete this object."""
self.deleted = True
self.deleted_at = timeutils.utcnow()
if not session:
session = sql_session.get_session()
session.delete(self)
session.flush()
def delete(self, session=None):
"""Delete this object."""
self.deleted = True
self.deleted_at = timeutils.utcnow()
if not session:
session = sql_session.get_session()
session.delete(self)
session.flush()
def soft_delete(self, synchronize_session='evaluate'):
return self.update(
{
'deleted': literal_column('id'),
'updated_at': literal_column('updated_at'),
'deleted_at': timeutils.utcnow()
},
synchronize_session=synchronize_session)
def __init__(self, name, uuid=None):
if uuid:
self._uuid = uuid
else:
self._uuid = uuidutils.generate_uuid()
self._name = name
self._flowdetails_by_id = {}
self.created_at = timeutils.utcnow()
self.updated_at = None
self.meta = {}
def drop_old_duplicate_entries_from_table(migrate_engine, table_name,
use_soft_delete, *uc_column_names):
"""Drop all old rows having the same values for columns in uc_columns.
This method drop (or mark ad `deleted` if use_soft_delete is True) old
duplicate rows form table with name `table_name`.
:param migrate_engine: Sqlalchemy engine
:param table_name: Table with duplicates
:param use_soft_delete: If True - values will be marked as `deleted`,
if False - values will be removed from table
:param uc_column_names: Unique constraint columns
"""
meta = MetaData()
meta.bind = migrate_engine
table = Table(table_name, meta, autoload=True)
columns_for_group_by = [table.c[name] for name in uc_column_names]
columns_for_select = [func.max(table.c.id)]
columns_for_select.extend(columns_for_group_by)
duplicated_rows_select = select(columns_for_select,
group_by=columns_for_group_by,
having=func.count(table.c.id) > 1)
for row in migrate_engine.execute(duplicated_rows_select):
# NOTE(boris-42): Do not remove row that has the biggest ID.
delete_condition = table.c.id != row[0]
is_none = None # workaround for pyflakes
delete_condition &= table.c.deleted_at == is_none
for name in uc_column_names:
delete_condition &= table.c[name] == row[name]
rows_to_delete_select = select([table.c.id]).where(delete_condition)
for row in migrate_engine.execute(rows_to_delete_select).fetchall():
LOG.info(_("Deleting duplicated row with id: %(id)s from table: "
"%(table)s") % dict(id=row[0], table=table_name))
if use_soft_delete:
delete_statement = table.update().\
where(delete_condition).\
values({
'deleted': literal_column('id'),
'updated_at': literal_column('updated_at'),
'deleted_at': timeutils.utcnow()
})
else:
delete_statement = table.delete().where(delete_condition)
migrate_engine.execute(delete_statement)
def logbook_save(lb):
# Acquire all the locks that will be needed to perform this operation with
# out being affected by other threads doing it at the same time.
with threading_utils.MultiLock(READ_SAVE_ORDER):
# Get a existing logbook model (or create it if it isn't there).
try:
backing_lb = LOG_BOOKS[lb.uuid]
if backing_lb.meta != lb.meta:
backing_lb.meta = lb.meta
# Add anything on to the existing loaded logbook that isn't already
# in the existing logbook.
for fd in lb:
if fd not in backing_lb:
FLOW_DETAILS[fd.uuid] = copy.deepcopy(fd)
backing_lb.add(flowdetails_save(fd))
else:
# Previously added but not saved into the flowdetails
# 'permanent' storage.
if fd.uuid not in FLOW_DETAILS:
FLOW_DETAILS[fd.uuid] = copy.deepcopy(fd)
flowdetails_save(fd)
# TODO(harlowja): figure out a better way to set this property
# without actually letting others set it external.
backing_lb._updated_at = timeutils.utcnow()
except KeyError:
backing_lb = copy.deepcopy(lb)
# TODO(harlowja): figure out a better way to set this property
# without actually letting others set it external.
backing_lb._created_at = timeutils.utcnow()
# Record all the pieces as being saved.
LOG_BOOKS[lb.uuid] = backing_lb
for fd in backing_lb:
FLOW_DETAILS[fd.uuid] = fd
for td in fd:
TASK_DETAILS[td.uuid] = td
return backing_lb
def logbook_save(lb):
# Acquire all the locks that will be needed to perform this operation with
# out being affected by other threads doing it at the same time.
with threading_utils.MultiLock(READ_SAVE_ORDER):
# Get a existing logbook model (or create it if it isn't there).
try:
backing_lb = LOG_BOOKS[lb.uuid]
if backing_lb.meta != lb.meta:
backing_lb.meta = lb.meta
# Add anything on to the existing loaded logbook that isn't already
# in the existing logbook.
for fd in lb:
if fd not in backing_lb:
FLOW_DETAILS[fd.uuid] = copy.deepcopy(fd)
backing_lb.add(flowdetails_save(fd))
else:
# Previously added but not saved into the flowdetails
# 'permanent' storage.
if fd.uuid not in FLOW_DETAILS:
FLOW_DETAILS[fd.uuid] = copy.deepcopy(fd)
flowdetails_save(fd)
# TODO(harlowja): figure out a better way to set this property
# without actually letting others set it external.
backing_lb._updated_at = timeutils.utcnow()
except KeyError:
backing_lb = copy.deepcopy(lb)
# TODO(harlowja): figure out a better way to set this property
# without actually letting others set it external.
backing_lb._created_at = timeutils.utcnow()
# Record all the pieces as being saved.
LOG_BOOKS[lb.uuid] = backing_lb
for fd in backing_lb:
FLOW_DETAILS[fd.uuid] = fd
for td in fd:
TASK_DETAILS[td.uuid] = td
return backing_lb
def soft_delete(self, session=None):
"""Mark this object as deleted."""
self.deleted = self.id
self.deleted_at = timeutils.utcnow()
self.save(session=session)
def soft_delete(self, synchronize_session='evaluate'):
return self.update({'deleted': literal_column('id'),
'updated_at': literal_column('updated_at'),
'deleted_at': timeutils.utcnow()},
synchronize_session=synchronize_session)
def soft_delete(self, session=None):
"""Mark this object as deleted."""
self.deleted = self.id
self.deleted_at = timeutils.utcnow()
self.save(session=session)
