Implement read-only setting for fields

[petri]

I have a case whereby data for some fields (columns) should be set programmatically and only some is editable by end user.

I wonder if the ComputedField could be (ab-)used for this? So that one could programmatically set the value and the TALES expression would render it, making it in effect read-only? Ie. the TALES expression would render its own column value... would that work?

[keul]

Hi @petri
Don't think this is doable with computed field.
Times ago I started planning edit permission for rows (not for columns) for a customer but then customer changed idea so I don't have any example for you.

Maybe you can do this simply with JavaScript? An additional JavaScript that put in readonly fields?

[petri]

I guess so, for columns somehow marked as readonly, perhaps add a marker string such as permissions:readonly to column spec field...? Thanks.

[keul]

Instead of permissions (that in plone has different meanings) I'll prefer visibility (like Archetypes feature).
If you want to provide a pull request for this I've nothing against this feature 👍

[petri]

Could there be some other uses & therefore values for "visibility" than "readonly"?

[petri]

Hm indeed visibility could of course also be "hidden"..

[keul]

In Archetypes style you can have hidden and invisibile. Hidden is rendered as an INPUT of type HIDDEN, invisible is not show at all.
My 2 cents