Comments (3)
Email
and URL
fields have built-in "user validators" (stored in each field's validators
attribute. User validators are only applied during deserialization, i.e. when calling Schema#load
. Schema#dump
only validates against field types (e.g. a valid integer is passed to fields.Int
).
See #45 (comment) and #47 (comment) for related discussion.
That said, one could argue that the email format validation defines fields.Email
's "type" and that it should be validated on serialization. Perhaps this would make fields.Email
and fields.URL
more consistent with the behavior of the other fields.
from marshmallow.
Thanks for the clarification, the related discussions also helped to better understand the reasoning behind this. That being said I do still like the idea of the fields.Email
and fields.URL
"type" being used for validation on serialization. As pointed out it would make their behavior more consistent with that of other fields. At the very least maybe an addition to the documentation that points out the current behavior?
from marshmallow.
I have decided to restore validation upon serialization for Email
and URL
fields. Thank you for raising the issue!
from marshmallow.
Related Issues (20)
- fields.URL validation error should specify "not a valid FQDN" if trying to pass hostname without domain
- missing `f` for f-Strings HOT 2
- `fields.Url` does not accept `file` URLs
- when a new request, schema context not reset !!! HOT 2
- Questions about Copilot + Open Source Software Hierarchy HOT 3
- Allow None for a allow_none=True Date field HOT 6
- fields.Nested Type Warning Since Version 3.15.0
- Setting many=True through Meta - SchemaOpts HOT 1
- RFE: use `zoneinfo` instead of `pytz` HOT 3
- 3.21.2: pytest fails in units checking time HOT 1
- 3.21.2: sphinx warnings `reference target not found` HOT 2
- Static typing of Field subclass kwargs
- Help understanding how to set Schema meta options when using Schema.from_dict() HOT 1
- PyRight: Static TypeChecking of `Schema: ClassVar[Type[Schema]] = Schema` fails HOT 1
- Send a post request containing nested data, .List(fields.Nested(Schema)), Flask restapi - marshmallow schema HOT 4
- OSS Fuzz Integration
- Dynamically set data_key in nested field?
- Error when passing custom parameter in Nested schema HOT 2
- Documentation for _serialize/_deserialize shows parent class docstring HOT 1
- Support sqlalchemy 2+ HOT 3
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