def __init__(self,
verbose_name=None,
mongo_name=None,
min_value=None,
max_value=None,
**kwargs):
"""
:parameters:
- `verbose_name`: A human-readable name for the Field.
- `mongo_name`: The name of this field when stored in MongoDB.
- `min_value`: The minimum value that can be stored in this field.
- `max_value`: The maximum value that can be stored in this field.
.. seealso:: constructor for
:class:`~pymodm.base.fields.MongoBaseField`
"""
if not _HAS_DECIMAL128:
raise ConfigurationError(
'Need PyMongo >= 3.4 in order to use Decimal128Field.')
super(Decimal128Field, self).__init__(verbose_name=verbose_name,
mongo_name=mongo_name,
**kwargs)
def validate_min_and_max(value):
# Turn value into a Decimal.
value = value.to_decimal()
validators.validator_for_min_max(min_value, max_value)(value)
self.validators.append(
validators.together(validators.validator_for_func(self.to_mongo),
validate_min_and_max))
def image(self):
"""The underlying image."""
if Image is None:
raise ConfigurationError(
'PIL or Pillow must be installed to access the "image" '
'property on an ImageFieldFile.')
if not hasattr(self, '_image') or self._image is None:
self._image = Image.open(self.file)
return self._image
def __init__(self, verbose_name=None, mongo_name=None, storage=None,
**kwargs):
"""
:parameters:
- `verbose_name`: A human-readable name for the Field.
- `mongo_name`: The name of this field when stored in MongoDB.
- `storage`: The :class:`~pymodm.files.Storage` implementation to
use for saving and opening files.
.. seealso:: constructor for
:class:`~pymodm.base.fields.MongoBaseField`
"""
if not _HAS_PILLOW:
raise ConfigurationError(
'The PIL or Pillow library must be installed in order '
'to use ImageField.')
super(ImageField, self).__init__(verbose_name=verbose_name,
mongo_name=mongo_name,
storage=storage,
**kwargs)
self.validators.append(validators.validator_for_func(Image.open))
