Entity field "required"=true does not work when type if UINT

In my custom entity, I have a field such as:

PHP:

'foo' => ['type' => self::UINT, 'required' => true]

The form is something like this:
HTML:

<xf:selectrow label="Foo" value="{$entity.foo}" name="foo">
   <xf:option value="">Select One</xf:option>
   <option value="1">Abc</option>
    <option value="2">Ghi</option>
    <option value="3">Def</option>
</xf:selectrow>

Of course, there are other fields as well, but if nothing in selected for "Foo" and submit button is pressed, the form...

Read more

Читать далее...