Single image is array in Pages::saveReady hook

[DrQuincy]

I have an Images field that is set to required, maximum file = 1 and Single item (null if empty).

When I get the page in the front-end template the field if of ProcessWire\Pageimage (singular) type as I would expect but in a Pages::saveReady hook it is ProcessWire\Pageimages (plural).

Is this excepted behaviour — and if so, why? Is it to do with PW applying the “Single item (null if empty)” further down the chain?

Thanks.

EDIT: I think I have found the answer. It says this in the back-end:

Quote

Select the type of value you want this field to provide when accessed from the API on the front-end of your site.

I am assuming then that because the Pages::saveReady hook is called in the back-end this isn't applied. Instead, it is added some time before the template is loaded. So, fields Files and Images will always be arrays in the back-end/unless accessed via the templates. Is that right?

[Zeka]

 

[DrQuincy]

That's confirmed what I thought, thanks.