Reading data when calling a new form

[maxniebieski]

Hello Everyone,

I'm trying but I don't know if I'm thinking correctly, I want it to show the value read from the database when a new entity form is called, e.g. a new case, in one of the defined fields. (not after saving). I tried editing entity files in entityDefs and clientDefs but it freezes my system, can I ask for some tips?

"fields": {
    "pozostaleurlopy": {
        "type": "text",
        "rowsMin": 2,
        "cutHeight": 200,
        "readOnly": false,
        "inlineEditDisabled": false,
        "isCustom": true,
        "default": null,
        "formula": "var user = record.get('user'); if (user) { return 'URLOP: ' + user.cPozostalyurlop + ' UNŻ: ' + user.cCLeaveOnRequestCurrent; } else { return ''; }",
        "onBeforeSave": true
    }
}