def process_data(self, value: datetime) -> None:
if value is not None:
if not value.tzinfo:
if self.use_naive:
value = get_timezone().localize(value)
else:
value = utc_dt(value)
if not self.use_naive:
value = value.astimezone(get_timezone())
super().process_data(value)
def process_data(self, value):
if value is not None:
if not value.tzinfo:
if self.use_naive:
value = get_timezone().localize(value)
else:
value = utc_dt(value)
if not self.use_naive:
value = value.astimezone(get_timezone())
super().process_data(value)
def process_formdata(self, valuelist):
if valuelist:
date_str = " ".join(valuelist)
locale = get_locale()
date_fmt = locale.date_formats["short"]
date_fmt = babel2datetime(date_fmt)
date_fmt = date_fmt.replace("%B", "%m").replace(
"%b", "%m"
) # force numerical months
time_fmt = locale.time_formats["short"]
time_fmt = babel2datetime(time_fmt)
datetime_fmt = f"{date_fmt} | {time_fmt}"
try:
self.data = datetime.datetime.strptime(date_str, datetime_fmt)
if not self.use_naive:
tz = get_timezone()
if self.data.tzinfo:
self.data = self.data.astimezone(tz)
else:
self.data = tz.localize(self.data)
# convert to UTC
self.data = utc_dt(self.data)
except ValueError:
self.data = None
raise ValueError(self.gettext("Not a valid datetime value"))
def format_datetime(dt, *, convert_tz=False, show_tz=False):
"""
Format a `datetime` object into a localized form.
:param datetime dt: The datetime object to format.
:param bool convert_tz: Whether to convert the value to Babel's timezone.
:param bool show_tz: Whether to print the timezone's name in the result.
This can only be set to `True` when `convert_tz` is also `True`.
:return str: The localized version of the datetime object.
"""
if show_tz and not convert_tz:
# Only implemented showing the timezone when converting.
raise ValueError
parts = [
dates.format_datetime(dt,
format='short',
tzinfo=get_timezone() if convert_tz else None,
locale=get_locale()),
]
if show_tz:
parts.append(f"({get_timezone().tzname(dt)})")
return ' '.join(parts)
def process_formdata(self, valuelist: List[str]) -> None:
if valuelist:
date_str = " ".join(valuelist)
locale = get_locale()
date_fmt = locale.date_formats["short"]
date_fmt = babel2datetime(date_fmt)
date_fmt = date_fmt.replace("%B", "%m").replace(
"%b", "%m") # force numerical months
time_fmt = locale.time_formats["short"]
time_fmt = babel2datetime(time_fmt)
datetime_fmt = f"{date_fmt} | {time_fmt}"
try:
self.data = datetime.strptime(date_str, datetime_fmt)
if not self.use_naive:
tz = get_timezone()
if self.data.tzinfo:
self.data = self.data.astimezone(tz)
else:
self.data = tz.localize(self.data)
# convert to UTC
self.data = utc_dt(self.data)
except ValueError:
self.data = None
raise ValueError(self.gettext("Not a valid datetime value"))
def process_formdata(self, valuelist):
if valuelist:
date_str = ' '.join(valuelist)
locale = get_locale()
date_fmt = locale.date_formats['short']
date_fmt = babel2datetime(date_fmt)
date_fmt = date_fmt \
.replace('%B', '%m') \
.replace('%b', '%m') # force numerical months
time_fmt = locale.time_formats['short']
time_fmt = babel2datetime(time_fmt)
datetime_fmt = u'{} | {}'.format(date_fmt, time_fmt)
try:
self.data = datetime.datetime.strptime(date_str, datetime_fmt)
if not self.use_naive:
tz = get_timezone()
if self.data.tzinfo:
self.data = self.data.astimezone(tz)
else:
self.data = tz.localize(self.data)
# convert to UTC
self.data = utc_dt(self.data)
except ValueError:
self.data = None
raise ValueError(self.gettext('Not a valid datetime value'))
def process_formdata(self, valuelist):
if valuelist:
date_str = ' '.join(valuelist)
locale = get_locale()
date_fmt = locale.date_formats['short']
date_fmt = babel2datetime(date_fmt)
date_fmt = date_fmt.replace('%B', '%m')\
.replace('%b', '%m') # force numerical months
time_fmt = locale.time_formats['short']
time_fmt = babel2datetime(time_fmt)
datetime_fmt = u'{} | {}'.format(date_fmt, time_fmt)
try:
self.data = datetime.datetime.strptime(date_str, datetime_fmt)
if not self.use_naive:
tz = get_timezone()
if self.data.tzinfo:
self.data = self.data.astimezone(tz)
else:
self.data = tz.localize(self.data)
# convert to UTC
self.data = utc_dt(self.data)
except ValueError:
self.data = None
raise ValueError(self.gettext('Not a valid datetime value'))
def count_last_week_dayli_requests():
"""
获取上周的每日流量
"""
from flask_babel import get_timezone
from app.extensions.logger.models import Log
from app.utils import local
project = {
"$project": {
"cdate": {
"$dateToString": {
"format": "%Y-%m-%d",
"date": "$created",
"timezone": str(get_timezone()),
}
},
"day": {
"$dayOfYear": {
"timezone": str(get_timezone()),
"date": "$created"
}
},
}
}
group = {
"$group": {
"_id": "$day",
"date": {
"$first": "$cdate"
},
"cnt": {
"$sum": 1
}
}
}
sort = {"$sort": {"_id": 1}}
a_week_ago = local.localdate().shift(weeks=-1)
cursor = Log.objects(created__gte=a_week_ago,
module__nin=["static", "admin", "unknown"
]).aggregate(project, group, sort)
data = [i for i in cursor]
labels = [i["date"] for i in data]
cnts = [i["cnt"] for i in data]
return {"labels": labels, "cnts": cnts}
def count_last_week_dayli_tasks():
"""
获取上周的每日任务数量
"""
from flask_babel import get_timezone
from app.extensions.celerybackend.models import Tasks
from app.utils import local
project = {
"$project": {
"cdate": {
"$dateToString": {
"format": "%Y-%m-%d",
"date": "$time_start",
"timezone": str(get_timezone()),
}
},
"day": {
"$dayOfYear": {
"timezone": str(get_timezone()),
"date": "$time_start"
}
},
}
}
group = {
"$group": {
"_id": "$day",
"date": {
"$first": "$cdate"
},
"cnt": {
"$sum": 1
}
}
}
sort = {"$sort": {"_id": 1}}
a_week_ago = local.localdate().shift(weeks=-1)
cursor = Tasks.objects(time_start__gte=a_week_ago).aggregate(
project, group, sort)
data = [i for i in cursor]
labels = [i["date"] for i in data]
cnts = [i["cnt"] for i in data]
return {"labels": labels, "cnts": cnts}
def _serialize(self, value: Union[None, datetime.datetime], attr: Any,
obj: Any, **kwargs: Any) -> Any:
"""序列化"""
if value is None:
return value
timezone = str(get_timezone())
value = convert_timezone(instance(value), timezone)
return super()._serialize(value, attr, obj, **kwargs)
def process_result_value(self, value, dialect):
"""
从数据库中将时间转为arrow类型
"""
from flask_babel import get_timezone
if value:
return arrow.get(value).to(str(get_timezone()))
return value
def to_python(self, value):
"""
从数据库中将时间转为arrow类型
"""
from flask_babel import get_timezone
if value:
return arrow.get(value).to(str(get_timezone()))
return value
def _deserialize(self, value: str, attr: Any, data: Any,
**kwargs: Any) -> DateTime:
"""反序列化"""
if not value:
raise self.make_error("invalid",
input=value,
obj_type=self.OBJ_TYPE)
timezone = get_timezone()
dt = parse(value, tz=timezone)
assert isinstance(dt, DateTime)
return convert_timezone(dt, "utc")
def process_literal_param(self, value, dialect):
"""
渲染内联的支持
"""
from flask_babel import get_timezone
val = self._coerce(value)
print(val)
if val.tzinfo == tz.UTC:
val = val.replace(tzinfo=str(get_timezone()))
utc_val = val.to("UTC")
return utc_val.format("YYYY-MM-DD HH:mm:ss")
def process_bind_param(self, value, dialect):
"""
处理数据到数据库
1. 替换UTC的时区为当当前时区，后转为当前时区
2. 转换非UTC时区的时间为当前时区
"""
from flask_babel import get_timezone
if value:
val = self._coerce(value)
if val.tzinfo == tz.UTC:
val = val.replace(tzinfo=str(get_timezone()))
utc_val = val.to("UTC")
return utc_val.datetime if self.impl.timezone else utc_val.naive
return value
def celery_worker_formatter(worker_info):
"""
e.g.
{'celery@RedLotus':
{
'61421e6b-b933-412b-8f62-65425f312b69': [
'active',
{
'id': '61421e6b-b933-412b-8f62-65425f312b69',
'name': 'send_mail',
'args': '()',
'kwargs': '{}',
'type': 'send_mail',
'hostname': 'celery@RedLotus',
'time_start': 1565752238.579593,
'acknowledged': False,
'delivery_info': {
'exchange': '',
'routing_key': 'celery',
'priority': 0,
'redelivered': None
},
'worker_pid': 19696
}
]
}
}
"""
from flask_babel import get_timezone
result = []
for _, task_info in worker_info.items():
for _, details in task_info.items():
state, info_dict = details
tmp = {}
tmp["state"] = state
tmp.update(info_dict)
tmp["time_start"] = arrow.get(tmp["time_start"]).to(
str(get_timezone()))
_id = uuid.UUID(tmp.pop("id"))
tmp["id"] = _id
result.append(tmp)
return result
def format_datetime(dt, *, convert_tz=False, show_tz=False):
"""
Format a `datetime` object into a localized form.
:param datetime dt: The datetime object to format.
:param bool convert_tz: Whether to convert the value to Babel's timezone.
:param bool show_tz: Whether to print the timezone's name in the result.
:return str: The localized version of the datetime object.
"""
parts = [
dates.format_datetime(dt,
format='short',
tzinfo=get_timezone() if convert_tz else None,
locale=get_locale()),
]
if show_tz:
if convert_tz:
parts.append(f"({dt.astimezone(get_timezone()).tzname()})")
else:
parts.append(f"({dt.tzname()})")
return ' '.join(parts)
def localnow():
"""返回本地时间"""
time = arrow.now(str(get_timezone()))
return time
