本文整理汇总了Python中reader.Reader.read_latest_data方法的典型用法代码示例。如果您正苦于以下问题：Python Reader.read_latest_data方法的具体用法？Python Reader.read_latest_data怎么用？Python Reader.read_latest_data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reader.Reader的用法示例。
在下文中一共展示了Reader.read_latest_data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: Updater
# 需要导入模块: from reader import Reader [as 别名]
# 或者: from reader.Reader import read_latest_data [as 别名]
class Updater(object):
"""Updates the shadow database and allows hand-correction of image ID
synchronization."""
reader = None
"""reader instance"""
shadow = None
"""persistence instance"""
# String -> Updater
def __init__(self, kpadir, shadow_path):
"""Takes the location of the KPA root directory and a relative path to
the shadow DB."""
db_path = os.path.abspath(os.path.join(kpadir, shadow_path))
self.shadow = Shadow(db_path)
self.reader = Reader(kpadir)
# -> Boolean
def update(self, force=False):
"""Update database and resolve any created, deleted, moved, or edited
files. Does not update if index file has not changed and force=False
(default). Returns boolean indicating whether an update was performed."""
new_checksum = self.reader.get_checksum() # will need either way
if force:
need_update = True
else:
old_checksum = self.shadow.get_checksum()
need_update = old_checksum != new_checksum
if not need_update:
return False
data = self.reader.read_latest_data() # imageID:None
self.shadow.apply_latest_data(data, new_checksum)
return True