Ok, I've already solved it, in case anyone needs to know:
All tables from
#__cck_core_fields
where the 'type' column is calendar must be replaced with jform_calendar. For the options2
column of those fields, the following values need to be set:
{"today":"1","time":"24","week_numbers":"0"}
Except for the field
user_birthdate
, which should have the following options2
:
{"time":"0","week_numbers":"0","today":"0","format_filter":"server_utc"}
After this, the old Calendar (picker) field can be uninstalled.
Best regards
Adonay