a way to programatically set form/$model value without triggering validators

[renatodeleao]

Problem

If we want to implement a form "reset to defaults values", there's no way to do it without making all validators run on previous value set — either via $model or the reactive form mutation. This is particularly useful if you have async validators that do any sort of API requests. Resetting to a previous value will still trigger the useless API request and currently there's no easy way to prevent it without manually fiddle/hacking your configs.

Solution

The first one that comes to my mind is imitate vee-validate. With the current api, make $reset method accept a value argument and if that value is present (!== undefined) do not run any validators when field model is set, aside from marking the field $dirty as false.

Reference: see #resetField chapter

The second one would be a new method $slientSetModel our $silentModel computed setter that performs the same thing.

Alternative

I've noticed that is possible to achieve this if we activate $lazy on the useVuelidate hook level (it doesn't work on validator level config), and then do a combination of $reset() plus mutate the reactive form directly (not the $model). In my case, activating this breaks a lot of specs so I would have to patch a lot of things just to get something that could be available without any config limitation.

Demo

Additional context

This should be possible to do because $rewardEarly does exactly that. It prevents validators to run until $commit is called. In my case I cannot set this validation mode.

Final thoughts

Would be nice to have a way to do it regardless of the config, resetting values programatically is fairly common form scenario.