本文整理汇总了Python中cms.db.filecacher.FileCacher.describe方法的典型用法代码示例。如果您正苦于以下问题：Python FileCacher.describe方法的具体用法？Python FileCacher.describe怎么用？Python FileCacher.describe使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cms.db.filecacher.FileCacher的用法示例。
在下文中一共展示了FileCacher.describe方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: DumpExporter
# 需要导入模块: from cms.db.filecacher import FileCacher [as 别名]
# 或者: from cms.db.filecacher.FileCacher import describe [as 别名]
#.........这里部分代码省略.........
The self.skip_submissions flag controls wheter we export
submissions (and all other objects that can be reached only by
passing through a submission) or not.
"""
cls = type(obj)
data = {"_class": cls.__name__}
for prp in cls._col_props:
col, = prp.columns
col_type = type(col.type)
val = getattr(obj, prp.key)
if col_type in \
[Boolean, Integer, Float, Unicode, RepeatedUnicode, Enum]:
data[prp.key] = val
elif col_type is String:
data[prp.key] = \
val.decode('latin1') if val is not None else None
elif col_type is DateTime:
data[prp.key] = \
make_timestamp(val) if val is not None else None
elif col_type is Interval:
data[prp.key] = \
val.total_seconds() if val is not None else None
else:
raise RuntimeError("Unknown SQLAlchemy column type: %s"
% col_type)
for prp in cls._rel_props:
other_cls = prp.mapper.class_
# Skip submissions if requested
if self.skip_submissions and other_cls is Submission:
continue
# Skip user_tests if requested
if self.skip_user_tests and other_cls is UserTest:
continue
# Skip generated data if requested
if self.skip_generated and other_cls in (SubmissionResult,
UserTestResult):
continue
val = getattr(obj, prp.key)
if val is None:
data[prp.key] = None
elif isinstance(val, other_cls):
data[prp.key] = self.get_id(val)
elif isinstance(val, list):
data[prp.key] = list(self.get_id(i) for i in val)
elif isinstance(val, dict):
data[prp.key] = \
dict((k, self.get_id(v)) for k, v in val.iteritems())
else:
raise RuntimeError("Unknown SQLAlchemy relationship type: %s"
% type(val))
return data
def safe_get_file(self, digest, path, descr_path=None):
"""Get file from FileCacher ensuring that the digest is
correct.
digest (string): the digest of the file to retrieve.
path (string): the path where to save the file.
descr_path (string): the path where to save the description.
return (bool): True if all ok, False if something wrong.
"""
# TODO - Probably this method could be merged in FileCacher
# First get the file
try:
self.file_cacher.get_file_to_path(digest, path)
except Exception:
logger.error("File %s could not retrieved from file server.",
digest, exc_info=True)
return False
# Then check the digest
calc_digest = sha1sum(path)
if digest != calc_digest:
logger.critical("File %s has wrong hash %s.",
digest, calc_digest)
return False
# If applicable, retrieve also the description
if descr_path is not None:
with io.open(descr_path, 'wt', encoding='utf-8') as fout:
fout.write(self.file_cacher.describe(digest))
return True