[feature request] json field maxLength limit like text maxLength limit

[shynome]

No description provided.

[ganigeorgiev]

Without details what would be the use case for this and how maxLength is expected to work (eg. based on what should be applied - the minified json version or on the raw serialized data?), for now this remains out of the scope for v1.

It is possible the desired functionality to be handled eventually as part of #1154, but for now remains a low priority.

[shynome]

When allow user change JSONTypeField, user can upload too big json string
I also think JSON schema is better

[ganigeorgiev]

Just for info in case someone stumble here - a new MaxSize json field option was added in the develop branch to limit the max stored json data in the db (in terms of raw bytes). It will be available with the next v0.20.0 release soon. Option to limit the length of a json string prop and other json validations will be handled eventually in the future as part of #1154.