Needs read only view

[NightJar]

There is currently no "read only" version of the HistoryViewerField

This means that e.g. when attempting to apply the history viewer to a versioned DataObject, one can only see history when they are editing the object.

When accessing the object from the view state of GridFieldDetailForm itemRequest, a simple read only field renders, which does not match the entwine selector to boot the react field.

[robbieaverill]

Does something like this help?

public function performReadonlyTransformation()
{
    return clone $this; // doesn't need a different readonly state for this app
}

I'd probably argue that this is a bug

[NightJar]

I'd probably argue that this is a bug

I was wondering about that, but I went with enhancement due to it currently not having a read only view, and it would after the issue is closed.

Happy to have it reclassified

[robbieaverill]

Right, I guess I'm thinking of it more as "it doesn't work in a readonly context" e.g. when viewing a record rather than editing it.

[NightJar]

Yeah, it's a fine line. It doesn't work in that one does not see the history viewer as expected, however it does work in that it does not cease operation. One simply sees a generic ReadOnlyField with no content.