def configure_tasktable_crud(
self,
task=None,
function=None,
args=None,
vars=None,
period=3600, # seconds, so 1 hour
):
"""
Configure the task table for interactive CRUD,
setting defaults, widgets and hiding unnecessary fields
@param task: the task name (will use a UUID if omitted)
@param function: the function name (won't hide if omitted)
@param args: the function position arguments
@param vars: the function named arguments
"""
if args is None:
args = []
if vars is None:
vars = {}
T = current.T
NONE = current.messages["NONE"]
UNLIMITED = T("unlimited")
tablename = self.TASK_TABLENAME
table = current.db[tablename]
table.uuid.readable = table.uuid.writable = False
table.prevent_drift.readable = table.prevent_drift.writable = False
table.sync_output.readable = table.sync_output.writable = False
table.times_failed.readable = False
field = table.start_time
field.represent = lambda dt: \
S3DateTime.datetime_represent(dt, utc=True)
field.widget = S3DateTimeWidget(past=0)
field.requires = IS_UTC_DATETIME(
format=current.deployment_settings.get_L10n_datetime_format())
field = table.stop_time
field.represent = lambda dt: \
S3DateTime.datetime_represent(dt, utc=True)
field.widget = S3DateTimeWidget(past=0)
field.requires = IS_EMPTY_OR(
IS_UTC_DATETIME(
format=current.deployment_settings.get_L10n_datetime_format()))
if not task:
import uuid
task = str(uuid.uuid4())
field = table.task_name
field.default = task
field.readable = False
field.writable = False
if function:
field = table.function_name
field.default = function
field.readable = False
field.writable = False
field = table.args
field.default = json.dumps(args)
field.readable = False
field.writable = False
field = table.repeats
field.label = T("Repeat")
field.comment = T("times (0 = unlimited)")
field.default = 0
field.represent = lambda opt: \
opt and "%s %s" % (opt, T("times")) or \
opt == 0 and UNLIMITED or \
NONE
field = table.period
field.label = T("Run every")
field.default = period
field.widget = S3TimeIntervalWidget.widget
field.requires = IS_TIME_INTERVAL_WIDGET(table.period)
field.represent = S3TimeIntervalWidget.represent
field.comment = None
table.timeout.default = 600
table.timeout.represent = lambda opt: \
opt and "%s %s" % (opt, T("seconds")) or \
opt == 0 and UNLIMITED or \
NONE
field = table.vars
field.default = json.dumps(vars)
field.readable = field.writable = False
# Always use "default" controller (web2py uses current controller),
# otherwise the anonymous worker does not pass the controller
# permission check and gets redirected to login before it reaches
# the task function which does the s3_impersonate
field = table.application_name
field.default = "%s/default" % current.request.application
field.readable = field.writable = False
table.group_name.readable = table.group_name.writable = False
table.status.readable = table.status.writable = False
table.next_run_time.readable = table.next_run_time.writable = False
table.times_run.readable = table.times_run.writable = False
table.assigned_worker_name.readable = \
table.assigned_worker_name.writable = False
current.s3db.configure(
tablename,
list_fields=[
"id", "enabled", "start_time", "repeats", "period",
(T("Last run"), "last_run_time"), (T("Last status"), "status"),
(T("Next run"), "next_run_time"), "stop_time"
],
)
response = current.response
if response:
response.s3.crud_strings[tablename] = Storage(
label_create=T("Create Job"),
title_display=T("Scheduled Jobs"),
title_list=T("Job Schedule"),
title_update=T("Edit Job"),
label_list_button=T("List Jobs"),
msg_record_created=T("Job added"),
msg_record_modified=T("Job updated"),
msg_record_deleted=T("Job deleted"),
msg_list_empty=T("No jobs configured yet"),
msg_no_match=T("No jobs configured"))
return
def configure_tasktable_crud(self,
task=None,
function=None,
args=None,
vars=None,
period = 3600, # seconds, so 1 hour
):
"""
Configure the task table for interactive CRUD,
setting defaults, widgets and hiding unnecessary fields
@param task: the task name (will use a UUID if omitted)
@param function: the function name (won't hide if omitted)
@param args: the function position arguments
@param vars: the function named arguments
"""
if args is None:
args = []
if vars is None:
vars = {}
T = current.T
NONE = current.messages["NONE"]
UNLIMITED = T("unlimited")
tablename = self.TASK_TABLENAME
table = current.db[tablename]
table.uuid.readable = table.uuid.writable = False
table.prevent_drift.readable = table.prevent_drift.writable = False
table.sync_output.readable = table.sync_output.writable = False
table.times_failed.readable = False
# Configure start/stop time fields
for fn in ("start_time", "stop_time"):
field = table[fn]
field.represent = lambda dt: \
S3DateTime.datetime_represent(dt, utc=True)
field.requires = IS_UTC_DATETIME()
set_min = set_max = None
if fn == "start_time":
set_min = "#scheduler_task_stop_time"
elif fn == "stop_time":
set_max = "#scheduler_task_start_time"
field.widget = S3CalendarWidget(past = 0,
set_min = set_min,
set_max = set_max,
timepicker = True,
)
if not task:
import uuid
task = str(uuid.uuid4())
field = table.task_name
field.default = task
field.readable = False
field.writable = False
if function:
field = table.function_name
field.default = function
field.readable = False
field.writable = False
field = table.args
field.default = json.dumps(args)
field.readable = False
field.writable = False
field = table.repeats
field.label = T("Repeat")
field.comment = T("times (0 = unlimited)")
field.default = 0
field.represent = lambda opt: \
opt and "%s %s" % (opt, T("times")) or \
opt == 0 and UNLIMITED or \
NONE
field = table.period
field.label = T("Run every")
field.default = period
field.widget = S3TimeIntervalWidget.widget
field.requires = IS_TIME_INTERVAL_WIDGET(table.period)
field.represent = S3TimeIntervalWidget.represent
field.comment = T("seconds")
table.timeout.default = 600
table.timeout.represent = lambda opt: \
opt and "%s %s" % (opt, T("seconds")) or \
opt == 0 and UNLIMITED or \
NONE
field = table.vars
field.default = json.dumps(vars)
field.readable = field.writable = False
# Always use "default" controller (web2py uses current controller),
# otherwise the anonymous worker does not pass the controller
# permission check and gets redirected to login before it reaches
# the task function which does the s3_impersonate
field = table.application_name
field.default = "%s/default" % current.request.application
field.readable = field.writable = False
table.group_name.readable = table.group_name.writable = False
table.status.readable = table.status.writable = False
table.next_run_time.readable = table.next_run_time.writable = False
table.times_run.readable = table.times_run.writable = False
table.assigned_worker_name.readable = \
table.assigned_worker_name.writable = False
current.s3db.configure(tablename,
list_fields = ["id",
"enabled",
"start_time",
"repeats",
"period",
(T("Last run"), "last_run_time"),
(T("Last status"), "status"),
(T("Next run"), "next_run_time"),
"stop_time"
],
)
response = current.response
if response:
response.s3.crud_strings[tablename] = Storage(
label_create = T("Create Job"),
title_display = T("Scheduled Jobs"),
title_list = T("Job Schedule"),
title_update = T("Edit Job"),
label_list_button = T("List Jobs"),
msg_record_created = T("Job added"),
msg_record_modified = T("Job updated"),
msg_record_deleted = T("Job deleted"),
msg_list_empty = T("No jobs configured yet"),
msg_no_match = T("No jobs configured"))
return
def s3_datetime(name="date", **attr):
"""
Return a standard datetime field
@param name: the field name
@keyword default: the field default, use "now" for current datetime
@keyword represent: the field representation method, use "date" for
S3DateTime.date_represent (default is
S3DateTime.datetime_represent)
@keyword widget: the form widget, can use "date" to configure an
S3DateWidget (default is S3DateTimeWidget)
@keyword past: limit selection to x hours before now
@keyword future: limit selection to x hours after now
@keyword min: earliest selectable datetime.datetime (overrides past)
@keyword max: latest selectable datetime.datetime (overrides future)
@ToDo: Different default field name in case we need to start supporting
Oracle, where 'date' is a reserved word
"""
now = current.request.utcnow
limits = {}
for keyword in ("past", "future", "min", "max"):
if keyword in attr:
limits[keyword] = attr[keyword]
del attr[keyword]
# Default and label
if "default" in attr and attr["default"] == "now":
attr["default"] = now
if "label" not in attr:
attr["label"] = current.T("Date")
# Representation option
if "represent" not in attr:
attr["represent"] = lambda dt: S3DateTime.datetime_represent(dt, utc=True)
elif attr["represent"] == "date":
attr["represent"] = lambda dt: S3DateTime.date_represent(dt, utc=True)
# Helper functions to convert min/max dates into past/future hours
def past_hours(earliest):
diff = now - earliest
return divmod(diff.days * 86400 + diff.seconds, 3600)[0]
def future_hours(latest):
diff = latest - now
return divmod(diff.days * 86400 + diff.seconds, 3600)[0]
requires = None
widget = attr.get("widget")
if widget == "date":
# Helper function to convert past/future hours into
# earliest/latest datetime, retaining day of month and
# time of day
def limit(delta):
current_month = now.month
years, hours = divmod(-delta, 8760)
months = divmod(hours, 744)[0]
if months > current_month:
years += 1
month = divmod((current_month - months) + 12, 12)[1]
year = now.year - years
return now.replace(month=month, year=year)
# Compute limits
earliest = limits.get("min")
if not earliest:
past = limits.get("past")
if past is not None:
earliest = limit(-past)
else:
past = past_hours(earliest)
latest = attr.get("max")
if not latest:
future = attr.get("future")
if future is not None:
latest = limit(future)
else:
future = future_hours(latest)
# Widget
widget_opts = {}
if past is not None:
widget_opts["past"] = int(round(past / 744.0, 0))
if future is not None:
widget_opts["future"] = int(round(future / 744.0, 0))
attr["widget"] = S3DateWidget(**widget_opts)
# Validator
if "requires" not in attr:
dateformat = current.deployment_settings.get_L10n_date_format()
if past is None and future is None:
requires = IS_UTC_DATE()
elif past is None:
requires = IS_UTC_DATE(maximum=latest.date())
elif future is None:
requires = IS_UTC_DATE(minimum=earliest.date())
else:
attr["widget"] = S3DateWidget(past=past, future=future)
requires = IS_UTC_DATE(maximum=latest.date(), minimum=earliest.date())
elif widget is None or widget == "datetime":
# Widget
attr["widget"] = S3DateTimeWidget(**limits)
# Validator
if "requires" not in attr:
earliest = limits.get("min")
if not earliest:
past = limits.get("past")
if past is not None:
earliest = now - datetime.timedelta(hours=past)
latest = limits.get("max")
if not latest:
future = limits.get("future")
if future is not None:
latest = now + datetime.timedelta(hours=future)
if earliest and latest:
requires = IS_UTC_DATETIME(minimum=earliest, maximum=latest)
elif earliest:
requires = IS_UTC_DATETIME(minimum=earliest)
elif latest:
requires = IS_UTC_DATETIME(maximum=latest)
else:
requires = IS_UTC_DATETIME()
if "requires" not in attr and requires is not None:
empty = attr.pop("empty", None)
if empty is False:
attr["requires"] = requires
else:
attr["requires"] = IS_EMPTY_OR(requires)
return S3ReusableField(name, "datetime", **attr)()
