class BaseDate(BaseShortcut):
"""
Base Abstract Model that provides:
* an added field that automatically sets the insert date
* an updated field which updates itself automatically
We don't use django's autoaddnow=True because that makes the fields not visible in the admin.
"""
added = models.DateTimeField(_('created on'), default=now())
updated = models.DateTimeField(_('updated on'), default=now())
class Meta:
abstract = True
def save(self, *args, **kwargs):
"""
automatically update updated date field
"""
# auto fill updated field with current time unless explicitly disabled
auto_update = kwargs.get('auto_update', True)
if auto_update:
self.updated = now()
# remove eventual auto_update
if 'auto_update' in kwargs:
kwargs.pop('auto_update')
super(BaseDate, self).save(*args, **kwargs)
def get_setting(name, semester=None, year=None, time=None):
"""
Gets the setting value at the given time.
"""
if time is not None:
pass
elif semester is not None and year is not None:
# get time object for end of semester
if semester == 'spring':
month, day = settings.SPRING_SEMESTER_END
elif semester == 'fall':
month, day = settings.FALL_SEMESTER_END
else:
raise ValueError
time = datetime.datetime(year, month, day)
else:
time = now()
try:
setting = Setting.objects.filter(name=name,
time_set__lte=time).latest('time_set')
except Setting.DoesNotExist:
# if it doesn't exist for that time, just get the latest value
setting = Setting.objects.filter(name=name).latest('time_set')
if setting is None:
raise ValueError('Setting {} does not exist.'.format(name))
cleaned_value = setting_validators[setting.value_type](
setting.value)['value']
return cleaned_value
def get_setting(name, semester=None, year=None, time=None):
"""
Gets the setting value at the given time.
"""
if time is not None:
pass
elif semester is not None and year is not None:
# get time object for end of semester
if semester == 'spring':
month, day = settings.SPRING_SEMESTER_END
elif semester == 'fall':
month, day = settings.FALL_SEMESTER_END
else:
raise ValueError
time = datetime.datetime(year, month, day)
else:
time = now()
try:
setting = Setting.objects.filter(name=name, time_set__lte=time).latest('time_set')
except Setting.DoesNotExist:
# if it doesn't exist for that time, just get the latest value
setting = Setting.objects.filter(name=name).latest('time_set')
if setting is None:
raise ValueError('Setting {} does not exist.'.format(name))
cleaned_value = setting_validators[setting.value_type](setting.value)['value']
return cleaned_value
def dues_required(semester=None, year=None, time=None):
dues_required_semester = get_setting(name='Collect Dues')
if time is None and semester is None:
time = now()
if time:
semester = current_semester(time)
return dues_required_semester == 'both' or dues_required_semester == semester
def dues_required(semester=None, year=None, time=None):
dues_required_semester = get_setting(name='Collect Dues')
if time is None and semester is None:
time = now()
if time:
semester = current_semester(time)
return dues_required_semester == 'both' or dues_required_semester == semester
def save(self, *args, **kwargs):
"""
automatically update updated date field
"""
# auto fill updated field with current time unless explicitly disabled
auto_update = kwargs.get('auto_update', True)
if auto_update:
self.updated = now()
# remove eventual auto_update
if 'auto_update' in kwargs:
kwargs.pop('auto_update')
super(BaseDate, self).save(*args, **kwargs)
