doInit : function(component, event, helper) {
    if (this is true) {
        var action = component.get("c.getPickListValuesFromSubjects");
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                var pickListValues = response.getReturnValue();
                component.set("v.optionsForSubject", pickListValues);
            }
            else {
                console.log(state);
            }
        });
        $A.enqueueAction(action);}
    exit;
},