class Sample(BaseModel):
"""A sample is true some percentage of the time, but is not connected
to users or requests.
"""
name = models.CharField(max_length=100, unique=True,
help_text='The human/computer readable name.')
percent = models.DecimalField(max_digits=4, decimal_places=1, help_text=(
'A number between 0.0 and 100.0 to indicate a percentage of the time '
'this sample will be active.'))
note = models.TextField(blank=True, help_text=(
'Note where this Sample is used.'))
created = models.DateTimeField(default=datetime.now, db_index=True,
help_text=('Date when this Sample was created.'))
modified = models.DateTimeField(default=datetime.now, help_text=(
'Date when this Sample was last modified.'))
objects = managers.SampleManager()
SINGLE_CACHE_KEY = 'SAMPLE_CACHE_KEY'
ALL_CACHE_KEY = 'ALL_SAMPLES_CACHE_KEY'
def is_active(self):
if not self.pk:
return get_setting('SAMPLE_DEFAULT')
return Decimal(str(random.uniform(0, 100))) <= self.percent
class Sample(BaseModel):
"""A sample of users.
A sample is true some percentage of the time, but is not connected
to users or requests.
"""
name = models.CharField(
max_length=100,
unique=True,
help_text=_('The human/computer readable name.'),
verbose_name=_('Name'),
)
percent = models.DecimalField(
max_digits=4,
decimal_places=1,
help_text=_(
'A number between 0.0 and 100.0 to indicate a percentage of the time '
'this sample will be active.'),
verbose_name=_('Percent'),
)
note = models.TextField(
blank=True,
help_text=_('Note where this Sample is used.'),
verbose_name=_('Note'),
)
created = models.DateTimeField(
default=timezone.now,
db_index=True,
help_text=_('Date when this Sample was created.'),
verbose_name=_('Created'),
)
modified = models.DateTimeField(
default=timezone.now,
help_text=_('Date when this Sample was last modified.'),
verbose_name=_('Modified'),
)
objects = managers.SampleManager()
SINGLE_CACHE_KEY = 'SAMPLE_CACHE_KEY'
ALL_CACHE_KEY = 'ALL_SAMPLES_CACHE_KEY'
class Meta:
verbose_name = _('Sample')
verbose_name_plural = _('Samples')
def is_active(self):
if not self.pk:
if get_setting('CREATE_MISSING_SAMPLES'):
default_percent = 100 if get_setting('SAMPLE_DEFAULT') else 0
Sample.objects.get_or_create(
name=self.name, defaults={'percent': default_percent})
return get_setting('SAMPLE_DEFAULT')
return Decimal(str(random.uniform(0, 100))) <= self.percent
