katowulf

function copyFbRecord(oldRef, newRef) {    
     oldRef.once('value', function(snap)  {
          newRef.set( snap.value(), function(error) {
               if( error && typeof(console) !== 'undefined' && console.error ) {  console.error(error); }
          });
     });
}

katowulf

{
  "rules": {
 
    // REQUIRED FIELDS
    "example1" : {
      "$record": {
        // foo and bar are required fields that must always exist
        // this will reject writes to $record, as well as directly to $record/foo or $record/bar if they are null
        ".validate": "newData.hasChildren(['foo', 'bar'])"
      }

katowulf

{
  "rules": {
    "users": {
      "$user_id": {
        // email address is required
        ".validate": "newData.hasChildren(['email'])",
      }
    },
    
    "emails_to_users": {