本文整理匯總了Python中dNG.data.data_linker.DataLinker.get_db_class_query方法的典型用法代碼示例。如果您正苦於以下問題：Python DataLinker.get_db_class_query方法的具體用法？Python DataLinker.get_db_class_query怎麽用？Python DataLinker.get_db_class_query使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類dNG.data.data_linker.DataLinker的用法示例。
在下文中一共展示了DataLinker.get_db_class_query方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: load_owner_root_directory
# 需要導入模塊: from dNG.data.data_linker import DataLinker [as 別名]
# 或者: from dNG.data.data_linker.DataLinker import get_db_class_query [as 別名]
def load_owner_root_directory(cls, owner_id):
"""
Load Entry instance of the root directory for the given owner ID.
:param cls: Expected encapsulating database instance class
:param owner_id: Owner ID
:return: (object) Entry instance on success
:since: v0.1.00
"""
if (owner_id is None): raise NothingMatchedException("Owner ID is invalid")
with Connection.get_instance():
db_instance = (DataLinker.get_db_class_query(cls)
.filter(_DbFileCenterEntry.vfs_type == Entry.VFS_TYPE_DIRECTORY,
_DbFileCenterEntry.role_id == "owner_root",
_DbFileCenterEntry.owner_type == "u",
_DbFileCenterEntry.owner_id == owner_id
)
.first()
)
if (db_instance is None): raise NothingMatchedException("Owner ID '{0}' is invalid".format(owner_id))
DataLinker._ensure_db_class(cls, db_instance)
return Entry(db_instance)示例2: load_vfs_url
# 需要導入模塊: from dNG.data.data_linker import DataLinker [as 別名]
# 或者: from dNG.data.data_linker.DataLinker import get_db_class_query [as 別名]
def load_vfs_url(cls, url):
"""
Load Entry instance by its VFS URL.
:param cls: Expected encapsulating database instance class
:param url: VFS URL
:return: (object) Entry instance on success
:since: v0.1.00
"""
if (url is None): raise NothingMatchedException("VFS URL is invalid")
with Connection.get_instance():
db_instance = DataLinker.get_db_class_query(cls).filter(_DbFileCenterEntry.vfs_url == url).first()
if (db_instance is None): raise NothingMatchedException("VFS URL '{0}' is invalid".format(url))
DataLinker._ensure_db_class(cls, db_instance)
return Entry(db_instance)示例3: load_role_id
# 需要導入模塊: from dNG.data.data_linker import DataLinker [as 別名]
# 或者: from dNG.data.data_linker.DataLinker import get_db_class_query [as 別名]
def load_role_id(cls, _id):
"""
Load Entry instance by its role ID.
:param cls: Expected encapsulating database instance class
:param _id: Role ID
:return: (object) Entry instance on success
:since: v0.1.00
"""
if (_id is None): raise NothingMatchedException("Role ID is invalid")
with Connection.get_instance():
db_instance = DataLinker.get_db_class_query(cls).filter(_DbFileCenterEntry.role_id == _id).first()
if (db_instance is None): raise NothingMatchedException("Role ID '{0}' is invalid".format(_id))
DataLinker._ensure_db_class(cls, db_instance)
return Entry(db_instance)示例4: load_id_subscription
# 需要導入模塊: from dNG.data.data_linker import DataLinker [as 別名]
# 或者: from dNG.data.data_linker.DataLinker import get_db_class_query [as 別名]
def load_id_subscription(cls, _id):
#
"""
Load List instance by its subscription ID.
:param cls: Expected encapsulating database instance class
:param _id: Subscription ID
:return: (object) List instance on success
:since: v0.1.00
"""
if (_id is None): raise NothingMatchedException("List subscription ID is invalid")
with Connection.get_instance():
#
db_instance = DataLinker.get_db_class_query(cls).filter(_DbDiscussList.id_subscription == _id).first()
if (db_instance is None): raise NothingMatchedException("List subscription '{0}' is invalid".format(_id))
DataLinker._ensure_db_class(cls, db_instance)
return List(db_instance)