def get_nested_embed_kwargs(field_name, embed_info):
"""Build the kwarg set for embedded model fields"""
model_field, is_array = embed_info
kwargs = {}
# If the embedded model is an array, have the serializer treat it as such
if is_array:
kwargs = {'many': True}
if model_field is not None:
if (model_field.verbose_name and
field_mapping.needs_label(model_field, field_name)):
kwargs['label'] = model_field.verbose_name
if model_field.help_text:
kwargs['help_test'] = model_field.help_text
if not model_field.editable:
kwargs['read_only'] = True
return kwargs # If the field is read only, finish here
if model_field.has_default() or model_field.blank or model_field.null:
kwargs['required'] = False
if model_field.null:
kwargs['allow_null'] = True
if model_field.validators:
kwargs['validators'] = model_field.validators
# `Unique` keyword not currently supported
return kwargs
def get_relation_kwargs(field_name, relation_info):
"""
Creating a default instance of a flat relational field.
"""
model_field, related_model = relation_info
kwargs = {}
if related_model and not issubclass(related_model, EmbeddedDocument):
kwargs['queryset'] = related_model.objects
if model_field:
if hasattr(model_field, 'verbose_name') and needs_label(
model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
if hasattr(model_field, 'help_text'):
kwargs['help_text'] = model_field.help_text
kwargs['required'] = model_field.required
if model_field.null:
kwargs['allow_null'] = True
if getattr(model_field, 'unique', False):
validator = UniqueValidator(queryset=related_model.objects)
kwargs['validators'] = [validator]
return kwargs
def get_relation_kwargs(field_name, relation_info):
"""
Creates a default instance of a flat relational field.
"""
model_field, related_model = relation_info
kwargs = {}
if related_model:
kwargs['queryset'] = related_model.objects
else:
kwargs['read_only'] = True
if model_field:
if hasattr(model_field, 'verbose_name') and needs_label(model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
if hasattr(model_field, 'help_text'):
kwargs['help_text'] = model_field.help_text
if kwargs.get('read_only', False):
# If this field is read-only, then return early.
# No further keyword arguments are valid.
return kwargs
if model_field.default or model_field.null:
kwargs['required'] = False
if model_field.null:
kwargs['allow_null'] = True
if getattr(model_field, 'unique', False):
validator = UniqueValidator(queryset=model_field.model.objects)
kwargs['validators'] = [validator]
return kwargs
def get_relation_kwargs(field_name, relation_info):
"""
Creates a default instance of a flat relational field.
"""
model_field, related_model = relation_info
kwargs = {}
if related_model:
kwargs['queryset'] = related_model.objects
else:
kwargs['read_only'] = True
if model_field:
if model_field.verbose_name and needs_label(model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
help_text = model_field.help_text
if help_text:
kwargs['help_text'] = help_text
if kwargs.get('read_only', False):
# If this field is read-only, then return early.
# No further keyword arguments are valid.
return kwargs
if model_field.default or model_field.null:
kwargs['required'] = False
if model_field.null:
kwargs['allow_null'] = True
if getattr(model_field, 'unique', False):
validator = UniqueValidator(
queryset=model_field.model._default_manager)
kwargs['validators'] = [validator]
return kwargs
def get_relation_kwargs(field_name, relation_info):
"""
Creating a default instance of a flat relational field.
"""
model_field, related_model = relation_info
kwargs = {}
if related_model and not issubclass(related_model, EmbeddedDocument):
kwargs['queryset'] = related_model.objects
if model_field:
if hasattr(model_field, 'verbose_name') and needs_label(model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
if hasattr(model_field, 'help_text'):
kwargs['help_text'] = model_field.help_text
kwargs['required'] = model_field.required
if model_field.null:
kwargs['allow_null'] = True
if getattr(model_field, 'unique', False):
validator = UniqueValidator(queryset=model_field.model.objects)
kwargs['validators'] = [validator]
return kwargs
def get_field_kwargs(field_name, model_field):
"""
Creating a default instance of a basic non-relational field.
"""
kwargs = {}
# The following will only be used by ModelField classes.
# Gets removed for everything else.
kwargs['model_field'] = model_field
if hasattr(model_field, 'verbose_name') and needs_label(
model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
if hasattr(model_field, 'help_text'):
kwargs['help_text'] = model_field.help_text
if isinstance(model_field, me_fields.DecimalField):
precision = model_field.precision
max_value = getattr(model_field, 'max_value', None)
if max_value is not None:
max_length = len(str(max_value)) + precision
else:
max_length = 65536
kwargs['decimal_places'] = precision
kwargs['max_digits'] = max_length
if isinstance(model_field, me_fields.GeoJsonBaseField):
kwargs['geo_type'] = model_field._type
if isinstance(
model_field, me_fields.SequenceField
) or model_field.primary_key or model_field.db_field == '_id':
# If this field is read-only, then return early.
# Further keyword arguments are not valid.
kwargs['read_only'] = True
return kwargs
if model_field.default and not isinstance(model_field,
me_fields.ComplexBaseField):
kwargs['default'] = model_field.default
if model_field.null:
kwargs['allow_null'] = True
if model_field.null and isinstance(model_field, me_fields.StringField):
kwargs['allow_blank'] = True
if 'default' not in kwargs:
kwargs['required'] = model_field.required
# handle special cases - compound fields: mongoengine.ListField/DictField
if kwargs['required'] is True:
if isinstance(model_field, me_fields.ListField) or isinstance(
model_field, me_fields.DictField):
kwargs['allow_empty'] = False
if model_field.choices:
# If this model field contains choices, then return early.
# Further keyword arguments are not valid.
kwargs['choices'] = model_field.choices
return kwargs
if isinstance(model_field, me_fields.StringField):
if model_field.regex:
kwargs['regex'] = model_field.regex
max_length = getattr(model_field, 'max_length', None)
if max_length is not None and isinstance(model_field,
me_fields.StringField):
kwargs['max_length'] = max_length
min_length = getattr(model_field, 'min_length', None)
if min_length is not None and isinstance(model_field,
me_fields.StringField):
kwargs['min_length'] = min_length
max_value = getattr(model_field, 'max_value', None)
if max_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['max_value'] = max_value
min_value = getattr(model_field, 'min_value', None)
if min_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['min_value'] = min_value
return kwargs
def get_field_kwargs(self, field_name, model_field):
"""
Creates a default instance of a basic non-relational field.
"""
kwargs = {}
validator_kwarg = list(model_field.validators)
# The following will only be used by ModelField classes.
# Gets removed for everything else.
kwargs['model_field'] = model_field
if model_field.verbose_name and needs_label(model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
if model_field.help_text:
kwargs['help_text'] = model_field.help_text
max_digits = getattr(model_field, 'max_digits', None)
if max_digits is not None:
kwargs['max_digits'] = max_digits
decimal_places = getattr(model_field, 'decimal_places', None)
if decimal_places is not None:
kwargs['decimal_places'] = decimal_places
if isinstance(model_field, models.TextField):
kwargs['style'] = {'base_template': 'textarea.html'}
if isinstance(model_field, models.AutoField) \
or not model_field.editable:
# If this field is read-only, then return early.
# Further keyword arguments are not valid.
kwargs['read_only'] = True
return kwargs
if model_field.has_default or model_field.blank or model_field.null:
kwargs['required'] = False
if model_field.null and not isinstance(model_field,
models.NullBooleanField):
kwargs['allow_null'] = True
if model_field.blank and (isinstance(model_field, models.CharField)
or isinstance(model_field, models.TextField)
or isinstance(model_field, columns.Text)):
kwargs['allow_blank'] = True
if isinstance(model_field, models.FilePathField):
kwargs['path'] = model_field.path
if model_field.match is not None:
kwargs['match'] = model_field.match
if model_field.recursive is not False:
kwargs['recursive'] = model_field.recursive
if model_field.allow_files is not True:
kwargs['allow_files'] = model_field.allow_files
if model_field.allow_folders is not False:
kwargs['allow_folders'] = model_field.allow_folders
if model_field.choices:
# If this model field contains choices, then return early.
# Further keyword arguments are not valid.
kwargs['choices'] = model_field.choices
return kwargs
# Our decimal validation is handled in the field code,
# not validator code.
# (In Django 1.9+ this differs from previous style)
if isinstance(model_field, models.DecimalField) and DecimalValidator:
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, DecimalValidator)
]
# Ensure that max_length is passed explicitly as a keyword arg,
# rather than as a validator.
max_length = getattr(model_field, 'max_length', None)
if max_length is not None and (
isinstance(model_field, models.CharField)
or isinstance(model_field, models.TextField)):
kwargs['max_length'] = max_length
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MaxLengthValidator)
]
# Ensure that min_length is passed explicitly as a keyword arg,
# rather than as a validator.
min_length = next(
(validator.limit_value for validator in validator_kwarg
if isinstance(validator, validators.MinLengthValidator)), None)
if min_length is not None and isinstance(model_field,
models.CharField):
kwargs['min_length'] = min_length
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MinLengthValidator)
]
# Ensure that max_value is passed explicitly as a keyword arg,
# rather than as a validator.
max_value = next(
(validator.limit_value for validator in validator_kwarg
if isinstance(validator, validators.MaxValueValidator)), None)
if max_value is not None and isinstance(model_field,
NUMERIC_FIELD_TYPES):
kwargs['max_value'] = max_value
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MaxValueValidator)
]
# Ensure that max_value is passed explicitly as a keyword arg,
# rather than as a validator.
min_value = next(
(validator.limit_value for validator in validator_kwarg
if isinstance(validator, validators.MinValueValidator)), None)
if min_value is not None and isinstance(model_field,
NUMERIC_FIELD_TYPES):
kwargs['min_value'] = min_value
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.MinValueValidator)
]
# URLField does not need to include the URLValidator argument,
# as it is explicitly added in.
if isinstance(model_field, models.URLField):
validator_kwarg = [
validator for validator in validator_kwarg
if not isinstance(validator, validators.URLValidator)
]
# EmailField does not need to include the validate_email argument,
# as it is explicitly added in.
if isinstance(model_field, models.EmailField):
validator_kwarg = [
validator for validator in validator_kwarg
if validator is not validators.validate_email
]
# SlugField do not need to include the 'validate_slug' argument,
if isinstance(model_field, models.SlugField):
validator_kwarg = [
validator for validator in validator_kwarg
if validator is not validators.validate_slug
]
# IPAddressField do not need to include the 'validate_ipv46_address'
# argument,
if isinstance(model_field, models.GenericIPAddressField):
validator_kwarg = [
validator for validator in validator_kwarg
if validator is not validators.validate_ipv46_address
]
if getattr(model_field, 'unique', False):
warnings.warn('UniqueValidator is currently not supported '
'in DjangoCassandraSerializer')
if validator_kwarg:
kwargs['validators'] = validator_kwarg
return kwargs
def get_field_kwargs(field_name, model_field):
"""
Creates a default instance of a basic non-relational field.
"""
kwargs = {}
# The following will only be used by ModelField classes.
# Gets removed for everything else.
kwargs['model_field'] = model_field
if hasattr(model_field, 'verbose_name') and needs_label(model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
if hasattr(model_field, 'help_text'):
kwargs['help_text'] = model_field.help_text
if isinstance(model_field, me_fields.DecimalField):
precision = model_field.precision
max_value = getattr(model_field, 'max_value', None)
if max_value is not None:
max_length = len(str(max_value)) + precision
else:
max_length = 65536
kwargs['decimal_places'] = precision
kwargs['max_digits'] = max_length
if isinstance(model_field, me_fields.GeoJsonBaseField):
kwargs['geo_type'] = model_field._type
if isinstance(model_field, me_fields.SequenceField) or model_field.primary_key or model_field.db_field == '_id':
# If this field is read-only, then return early.
# Further keyword arguments are not valid.
kwargs['read_only'] = True
return kwargs
kwargs['required'] = model_field.required
if model_field.default:
kwargs['required'] = False
if model_field.default and not isinstance(model_field, me_fields.ComplexBaseField):
kwargs['default'] = model_field.default
if model_field.null:
kwargs['allow_null'] = True
if model_field.choices:
# If this model field contains choices, then return early.
# Further keyword arguments are not valid.
kwargs['choices'] = model_field.choices
return kwargs
max_length = getattr(model_field, 'max_length', None)
if max_length is not None and isinstance(model_field, me_fields.StringField):
kwargs['max_length'] = max_length
min_length = getattr(model_field, 'min_length', None)
if min_length is not None and isinstance(model_field, me_fields.StringField):
kwargs['min_length'] = min_length
max_value = getattr(model_field, 'max_value', None)
if max_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['max_value'] = max_value
min_value = getattr(model_field, 'min_value', None)
if min_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['min_value'] = min_value
return kwargs
def get_field_kwargs(self, field_name, model_field):
"""
Creates a default instance of a basic non-relational field.
"""
kwargs = {}
validator_kwarg = list(model_field.validators)
# The following will only be used by ModelField classes.
# Gets removed for everything else.
kwargs["model_field"] = model_field
if model_field.verbose_name and needs_label(model_field, field_name):
kwargs["label"] = capfirst(model_field.verbose_name)
if model_field.help_text:
kwargs["help_text"] = model_field.help_text
max_digits = getattr(model_field, "max_digits", None)
if max_digits is not None:
kwargs["max_digits"] = max_digits
decimal_places = getattr(model_field, "decimal_places", None)
if decimal_places is not None:
kwargs["decimal_places"] = decimal_places
if isinstance(model_field, models.TextField):
kwargs["style"] = {"base_template": "textarea.html"}
if isinstance(model_field, models.AutoField) or not model_field.editable:
# If this field is read-only, then return early.
# Further keyword arguments are not valid.
kwargs["read_only"] = True
return kwargs
if model_field.has_default or model_field.blank or model_field.null:
kwargs["required"] = False
if model_field.null and not isinstance(model_field, models.NullBooleanField):
kwargs["allow_null"] = True
if model_field.blank and (
isinstance(model_field, models.CharField)
or isinstance(model_field, models.TextField)
or isinstance(model_field, columns.Text)
):
kwargs["allow_blank"] = True
if isinstance(model_field, models.FilePathField):
kwargs["path"] = model_field.path
if model_field.match is not None:
kwargs["match"] = model_field.match
if model_field.recursive is not False:
kwargs["recursive"] = model_field.recursive
if model_field.allow_files is not True:
kwargs["allow_files"] = model_field.allow_files
if model_field.allow_folders is not False:
kwargs["allow_folders"] = model_field.allow_folders
if model_field.choices:
# If this model field contains choices, then return early.
# Further keyword arguments are not valid.
kwargs["choices"] = model_field.choices
return kwargs
# Our decimal validation is handled in the field code,
# not validator code.
# (In Django 1.9+ this differs from previous style)
if isinstance(model_field, models.DecimalField) and DecimalValidator:
validator_kwarg = [
validator for validator in validator_kwarg if not isinstance(validator, DecimalValidator)
]
# Ensure that max_length is passed explicitly as a keyword arg,
# rather than as a validator.
max_length = getattr(model_field, "max_length", None)
if max_length is not None and (
isinstance(model_field, models.CharField) or isinstance(model_field, models.TextField)
):
kwargs["max_length"] = max_length
validator_kwarg = [
validator for validator in validator_kwarg if not isinstance(validator, validators.MaxLengthValidator)
]
# Ensure that min_length is passed explicitly as a keyword arg,
# rather than as a validator.
min_length = next(
(
validator.limit_value
for validator in validator_kwarg
if isinstance(validator, validators.MinLengthValidator)
),
None,
)
if min_length is not None and isinstance(model_field, models.CharField):
kwargs["min_length"] = min_length
validator_kwarg = [
validator for validator in validator_kwarg if not isinstance(validator, validators.MinLengthValidator)
]
# Ensure that max_value is passed explicitly as a keyword arg,
# rather than as a validator.
max_value = next(
(
validator.limit_value
for validator in validator_kwarg
if isinstance(validator, validators.MaxValueValidator)
),
None,
)
if max_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs["max_value"] = max_value
validator_kwarg = [
validator for validator in validator_kwarg if not isinstance(validator, validators.MaxValueValidator)
]
# Ensure that max_value is passed explicitly as a keyword arg,
# rather than as a validator.
min_value = next(
(
validator.limit_value
for validator in validator_kwarg
if isinstance(validator, validators.MinValueValidator)
),
None,
)
if min_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs["min_value"] = min_value
validator_kwarg = [
validator for validator in validator_kwarg if not isinstance(validator, validators.MinValueValidator)
]
# URLField does not need to include the URLValidator argument,
# as it is explicitly added in.
if isinstance(model_field, models.URLField):
validator_kwarg = [
validator for validator in validator_kwarg if not isinstance(validator, validators.URLValidator)
]
# EmailField does not need to include the validate_email argument,
# as it is explicitly added in.
if isinstance(model_field, models.EmailField):
validator_kwarg = [validator for validator in validator_kwarg if validator is not validators.validate_email]
# SlugField do not need to include the 'validate_slug' argument,
if isinstance(model_field, models.SlugField):
validator_kwarg = [validator for validator in validator_kwarg if validator is not validators.validate_slug]
# IPAddressField do not need to include the 'validate_ipv46_address'
# argument,
if isinstance(model_field, models.GenericIPAddressField):
validator_kwarg = [
validator for validator in validator_kwarg if validator is not validators.validate_ipv46_address
]
if getattr(model_field, "unique", False):
warnings.warn("UniqueValidator is current not support " "for DjangoCassandraSerializer")
if validator_kwarg:
kwargs["validators"] = validator_kwarg
return kwargs
def get_field_kwargs(field_name, model_field):
"""
Creates a default instance of a basic non-relational field.
"""
kwargs = {}
validators = []
# The following will only be used by ModelField classes.
# Gets removed for everything else.
kwargs['model_field'] = model_field
if model_field.verbose_name and needs_label(model_field, field_name):
kwargs['label'] = capfirst(model_field.verbose_name)
if model_field.help_text:
kwargs['help_text'] = model_field.help_text
if isinstance(model_field, me_fields.DecimalField):
precision = model_field.precision
max_value = getattr(model_field, 'max_value', None)
if max_value is not None:
max_length = len(str(max_value)) + precision
else:
max_length = 65536
kwargs['decimal_places'] = precision
kwargs['max_digits'] = max_length
if isinstance(
model_field, me_fields.SequenceField
) or model_field.primary_key or model_field.db_field == '_id':
# If this field is read-only, then return early.
# Further keyword arguments are not valid.
kwargs['read_only'] = True
return kwargs
kwargs['required'] = model_field.required
if model_field.default:
kwargs['required'] = False
if model_field.default and not isinstance(model_field,
me_fields.ComplexBaseField):
kwargs['default'] = model_field.default
if model_field.null:
kwargs['allow_null'] = True
if model_field.choices:
# If this model field contains choices, then return early.
# Further keyword arguments are not valid.
kwargs['choices'] = model_field.choices
return kwargs
max_length = getattr(model_field, 'max_length', None)
if max_length is not None and isinstance(model_field,
me_fields.StringField):
kwargs['max_length'] = max_length
min_length = getattr(model_field, 'min_length', None)
if min_length is not None and isinstance(model_field,
me_fields.StringField):
kwargs['min_length'] = min_length
max_value = getattr(model_field, 'max_value', None)
if max_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['max_value'] = max_value
min_value = getattr(model_field, 'min_value', None)
if min_value is not None and isinstance(model_field, NUMERIC_FIELD_TYPES):
kwargs['min_value'] = min_value
# if getattr(model_field, 'unique', False):
# validator = UniqueValidator(
# queryset=model_field.model._default_manager,
# message=None)
# validator_kwarg.append(validator)
if validators:
kwargs['validators'] = validators
return kwargs