I am writing a module configuration page for a module. Is there a way to make variables submitted and saved by system_settings_form translatable?
I think there are two issues you have to think about...
- Is the item you are saving in the variable used for calculations?
- Is the item you are saving going to be displayed?
Note there is actually a variable translation module located in Localization Module, but it seems you would need to ask for these for each language supported.
In the case of #1, code may be require this variable to be a specific value. This will make it to whether you need to keep a record of all the available translated values of this item that can be entered and compared against.
In the case of #2, you could simply wrap a t() around the variable setting it up for translation, but if it is something like a text field, this will have to be done after one figures out what the item is... Select fields and others would be no problem as you have a finite number of possibilities.
With all that said, if the item is a free-formed text field, I would just allow your user to type in a different value for this item for each language he has enabled using the Variable Localization module.