Fixed undefined pro uid

resources/views/app/patient/appointment-calendar.blade.php

@@ -841,13 +841,24 @@
 
                             // change from select2 to pro-suggest
                             $('#addApptPro').on('change', function() {
-                                self.newAppointment.proUid = $(this).val();
+                                var addProUidvalue = $(this).val();
+                                if(addProUidvalue){
+                                    self.newAppointment.proUid = addProUidvalue;
+                                }
                             });
                             $('#editApptPro').on('change', function() {
-                                self.editAppointment.proUid = $(this).val();
+                                var editProUidValue = $(this).val();
+                                if(editProUidValue){
+                                   self.editAppointment.proUid = editProUidValue;
+                                }
+                                
                             });
                             $('#updateApptPro').on('change', function() {
-                                self.editAppointment.proUid = $(this).val();
+                                var updatedProUidValue = $(this).val();
+                                if(updatedProUidValue){
+                                    self.editAppointment.proUid = updatedProUidValue;
+                                }
+                                
                                 if(!self.updateProUid){
                                     self.updateProUid = true;
                                 }