How to maintain specified fields invariate between linked custom posts with polylang

Question

I've create some custom posts on my customized theme in wordpress, in which the polylang plugin is activated.

The translation works well, but the problem is that I need that specified contents remain the same between translated posts. With the normal posts you can deactivate the translation for the media type, but this will not apply for custom content type.

For example, if I got two languages, like English and Spanish, and I create a new custom english post:

[ENG POST]
TITLE
content1 *
content2
media1 *
media2

I'd want that on the spanish post some of the contents to be already populated with some of the contents that I've already written\uploaded in the english post (the ones with the "*" ), like:

[SP POST]
-empty-
content1
-empty-
media1
-empty-

For the custom posts I'm using the CMB2 plugin.

Is there an elegant way to do this?

Answer 1

Never done anything like that, but to my knowledge polylang creates another post and, when loading the new language form, completely reloads CMB2 fields, triggering all related events.

Getting in the right event and finding the original post id should allow you to set the previous values as default for the corresponding fields, but it's just theory, since I never really tried. Let me know if it works.