请自行围观！
www.lynda.com作为全球一流的在线培训网站，一直以高质量的视频课程著称。其课程内容也是紧跟行业潮流，本人最近学了里面的系列课程Become A PythonProgrammer, 分享一下。
课程链接：https://www.lynda.com/learning-paths/Developer/become-a-python-developer
获取lynda.com永久会员的链接：https://item.taobao.com/item.htm?id=557746408785
class Log(Model):
"""ORM object used to log Superset actions to the database"""
__tablename__ = 'logs'
id = Column(Integer, primary_key=True)
action = Column(String(512))
user_id = Column(Integer, ForeignKey('ab_user.id'))
dashboard_id = Column(Integer)
slice_id = Column(Integer)
json = Column(Text)
user = relationship(sm.user_model, backref='logs', foreign_keys=[user_id])
dttm = Column(DateTime, default=datetime.utcnow)
dt = Column(Date, default=date.today())
duration_ms = Column(Integer)
referrer = Column(String(1024))
@classmethod
def log_this(cls, f):
"""Decorator to log user actions"""
@functools.wraps(f)
def wrapper(*args, **kwargs):
start_dttm = datetime.now()
user_id = None
if g.user:
user_id = g.user.get_id()
d = request.args.to_dict()
post_data = request.form or {}
d.update(post_data)
d.update(kwargs)
slice_id = d.get('slice_id')
try:
slice_id = int(
slice_id or json.loads(d.get('form_data')).get('slice_id'))
except (ValueError, TypeError):
slice_id = 0
params = ''
try:
params = json.dumps(d)
except Exception:
pass
stats_logger.incr(f.__name__)
value = f(*args, **kwargs)
sesh = db.session()
log = cls(
action=f.__name__,
json=params,
dashboard_id=d.get('dashboard_id'),
slice_id=slice_id,
duration_ms=(
datetime.now() - start_dttm).total_seconds() * 1000,
referrer=request.referrer[:1000] if request.referrer else None,
user_id=user_id)
sesh.add(log)
sesh.commit()
return value
return wrapper