[5.x] Add validation to asset containers

[edalzell]

Replaces #9966.

Closes statamic/ideas#2
Closes statamic/ideas#619
Closes statamic/ideas#1109

[edalzell]

@jasonvarga no UI on this yet, is this fine or do you think it's required to have one?

[duncanmcclean]

@jasonvarga no UI on this yet, is this fine or do you think it's required to have one?

I'm no Jason but I'd say we probably need a UI for it.

Otherwise, folks might not know about the fact the setting exists or might try and add values directly in the file which might not work, whereas if there's a UI, we can at least guide them somewhat.

[edalzell]

Potential improvements:

• makes the Rules a true component and use it in the FieldConditionsBuilder
• naming is hard
• keep the tabs?

[edalzell]

Ready now @jasonvarga

[toxsick]

Hey guys I am getting Assets fieldtype is missing the "container" option. after release v5.7.0 when I try to open any collection entry:

But all my type: assets fields also have an container: <valid_container_name> defined. I guess this is related to the changes here.

Any idea what I could check? v5.6.2 works without problems.

Thanks and regards!

[jasonvarga]

This is fixed in #10272 and will be released shortly.