display validation errors for <ImageInput>

[jamesjwarren]

What you were expecting:
ImageInput to display validation errors eg. "Required" as per the other input fields.

What happened instead:
No validation error messages displayed.

Steps to reproduce:
Use the ImageInput component in a create or edit form, either with a validation function or maxSize property. Submit the form. The form is not submitted but not validation errors are displayed.

Related code:

<ImageInput
  source="image"
  label="Image"
  accept="image/*"
  maxSize={1}
  validate={[required]}
>
  <ImageField source="src" />
</ImageInput>

Environment

• Admin-on-rest version: 1.3.4
• React version: 15.6.2
• Browser: Chrome 64

[fzaninotto]

Fixed by #2660

[jasonlimantoro]

What about the maxSize property?
I see required() is displayed, but it would be nice to tell a user something when a file is rejected for whatever reason (e.g. File is too large).
Is there anyway to get this behavior?

[fzaninotto]

For File and ImageInput, there is already a minSize and a maxSize property, see https://marmelab.com/react-admin/Inputs.html#imageinput

[jasonlimantoro]

I’m aware of those two properties. But it does not display any error or messages after the file was rejected, at least not by default.

[fzaninotto]

Can you please open a new issue then? don't forget to include a link to a CodeSandbox reproducing the problem (the simple CodeSandbox already has a FileInput in the CreatePost page).

[nosequeldeebee]

Duplicate of #6441