only validation & server side validation integration about angular-schema-form HOT 4 CLOSED

Validation alone can be done by using tv4 (or JSV or such) alone.

I don't know about server-side validation, probably it could be done manually by a hook... @davidlgj?

from angular-schema-form.

Hi @aleclofabbro,

it depends on what you mean by server side validation errors. Do you want to do a regular post and then re render the form with validation messages and errors from the server? Or do you want to do an ajax request back to the server to validate a field? Can you describe your use case a bit more?

All validation is currently done with tv4js which has support for custom format validators, but they are synchronous so you can't do ajax requests within them.

Angular 1.3 has support for asynchrous validators via $asyncValidators so we might be able to support those via a form definition in the future.

from angular-schema-form.

@davidlgj Would it not be preferable to have an integrated sever side validation after the tv4 schema validation has passed?
What I am thinking of is, that you first do the client-side validation. If it passes, you do your ajax call. But then you can have two outcomes. Firstly, the server accepts the call and everything is good. Or the server rejects and gives some sort of an error back. If this error would be an error dictionary with the form fields as keys, it would be nice to be able to display them.

E.g. a registration form. The server will check if the chosen username already exists. If so, registration is not allowed with this name.

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+1. We're trying to use HATEOAS rest api and problem+json for resonding on invalid form. So, how to make it possible to validate fields again regarding new problem-json schema, not initial one. I know that the best way i sto make client's rules closest to the server's, but still some conditions can be processed only on the server (e.g. username is already in use)

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