Dropdown list conflict

I have two dropdown boxes and data is coming from two different ODATA Urls in this but data is not showing in second dropdown box.

I am using following code in onInit:function

var url="proxy/sap/opu/odata/sap/ZDEPARTMENT_SRV/";

  var oModel = new sap.ui.model.odata.ODataModel(url,true);

  this.getView().setModel(oModel);

  var urld1="proxy/sap/opu/odata/sap/ZHR_LOCATION_SRV";

  var oModel1 = new sap.ui.model.odata.ODataModel(urld1,true);

  this.getView().setModel(oModel1);

please help me with this