Question: how validate File?

[acanthis]

Dear developer!
I'm trying to validate file in my collection.

Entity collection type:

File entity type:

Constraints NotBlank good work:

When I try to select a file that does not meet the requirements, the validation does not work.
In a typical form submission validation file works correctly!
Thanks in advance for your reply.

[66Ton99]

I think it does not implemented yet.

[acanthis]

User @cleannoise realized validation file:
https://github.com/cleannoise/JsFormValidatorBundle

it works!

[66Ton99]

Fixed in Svaroh/JsFormValidatorBundle, the new home of this bundle, by PR #18.

File is validated in the browser as far as the File API allows, so a file that is too large or has an unexpected mime type is reported before the upload starts:

Option	Checked with
maxSize	File.size
mimeTypes	File.type, type/* wildcards included
extensions	the extension of File.name
filenameMaxLength	the length of File.name in filenameCountUnit units
empty file	a File.size of zero

The sizes are formatted the way FileValidator formats them, so the messages read exactly as the server-side ones. Everything that needs the content of the file - the real mime type, readability, the upload errors - stays on the server, and Image with its own geometry options is validated server side only.

Documentation: 3_22.md.

The fix is in the svaroh/jsformvalidator-bundle package on main. It is not backported to fp/jsformvalidator-bundle, which stays on its 1.x line, so upgrading to the new package is what picks it up.