I'm submitting data to a controller function that saves a record via ajax. If the save works, I'm rendering an element, which then appears back in the ajax form as html ready to be placed into a dom element. All good - that works fine. But if the save fails I want to return an array that includes the validation errors - that really ought to be json. So on success I want html, on error I want json - and I can't have both.
How do I either (i) render the element but have it returned as json (and ideally tack in a 'success' key that I can check in the jQuery) or (ii) otherwise determine the success/error state when html has been returned to the jQuery?
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