checkboxes not populated in editor dialog

sagimann

hi,
I have set up a checkbox field "os" with 3 checkboxes: ios, android, windows (same name and label), and I am having trouble reading that info later back into the editor.

Initially, when I perform the "create" action, I need to change the structure, so I set the "ajax": customSubmit editor option and rebuild the json based on the checkbox values. In my case, the 3 checkboxes of the "os" field are changed to three different json properties: "is1", "is2", "is3", and the "os" property is removed. so far so good. DT renders this correctly in the table.

But when I want the editor to read the altered data back into the editor dialog (edit action), I don't know where I can make the opposite operation, and convert the 3 separate json props into a single "os" array prop... this causes the editor dialog to show empty checkboxes - not checked appropriately...

As an attempt to workaround it, I artificially add the "os" field right after the data is read from the server (I do it using a custom ajax function), so during the ajax call, I have code similar to:
object.os = []
if object.is1 then object.os.push("is1");
if object.is2 then object.os.push("is2");
if object.is2 then object.os.push("is3");
return object to DT

My q is simple: is that a reasonable solution to the problem? Or is there some better way to do the mapping between how DTE structures checkbox data and how my server expects it?

pls advise.
tnx