ZF-6364: Decorator should add error class to label/element in case of error



at the moment, there is no css-catchable structure for elements (and their labels) which are not valid. A {{


ul>}} tag is appended to the element DOM Node, but you can not add f.e. a red border for this input element with css-only.

This is what the Decorators produce:


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And this is what I suggest:


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(I added a css class to the {{

}} and {{}} tag) Without that, I have to write my own Decorator to do that, which is not really necessary, if the Default Decorator would add this information to the relevant DOM Nodes.


Patch and unit tests added.