yimengtianya

function go() {
  var userId = prompt('Username?', 'Guest');
  // Consider adding '/<unique id>' if you have multiple games.
  var gameRef = new Wilddog(GAME_LOCATION);
  assignPlayerNumberAndPlayGame(userId, gameRef);
};

// The maximum number of players.  If there are already 
// NUM_PLAYERS assigned, users won't be able to join the game.
var NUM_PLAYERS = 4;

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function pushSomething(ref) {
  // Let's push something. push() returns a reference that you can hold onto!
  var justPushed = ref.push({test: "push"});
  // We return a reference, but you can also return the name of the newly
  // created object with .name().
  return justPushed;
}

function removeItem(ref) {
  // Now we can get back to that item we just pushed via .child().

yimengtianya

function go() {
  var userId = prompt('Username?', 'Guest');
  var userData = { name: userId };
  tryCreateUser(userId, userData);
}
var USERS_LOCATION = 'https://<your-appid>.wilddogio.com/users';
function userCreated(userId, success) {
  if (!success) {
    alert('user ' + userId + ' already exists!');
  } else {

yimengtianya

// when  the records is empty ,it not work
var ref = new Wilddog(...);
var first = true;
ref.limitToLast(1).on("child_added", function(snap) {
  if( first ) {
   first = false; 
  } 
  else {
   console.log('new record', snap.key());
  }

yimengtianya

/** Looks up a user id by email address and invokes callback with the id or null if not found
 * @return {Object|null} the object contains the key/value hash for one user
 */
var wd = new Wilddog(...);

/**
 * Creates a new user record and also updates the index
 */
function getUserIdByEmail( emailAddress, callback ) {

yimengtianya

// Helper function to extract claims from a JWT. Does *not* verify the
// validity of the token. 
// polyfill window.atob() for IE8: https://github.com/davidchambers/Base64.js
// or really fast Base64 by Fred Palmer: https://code.google.com/p/javascriptbase64/
function deconstructJWT(token) {
   var segments = token.split(".");
   if (!segments instanceof Array || segments.length !== 3) {
      throw new Error("Invalid JWT");
   }
   var claims = segments[1];

yimengtianya

function getParent(snapshot) {
  // You can get the reference (A Wilddog object) from a snapshot
  // using .ref().
  var ref = snapshot.ref();
  // Now simply find the parent and return the name.
  return ref.parent().name();
}

var testRef = new Wilddog("https://example.wilddogio.com/foo/bar");
testRef.once("value", function(snapshot) {

yimengtianya

function makeList(ref) {
  var fruits = ["banana", "apple", "grape", "orange"];
  for (var i = 0; i < fruits.length; i++) {
    ref.push(fruits[i]);
  }
}

function getFirstFromList(ref, cb) {
  ref.startAt().limit(1).once("child_added", function(snapshot) {
    cb(snapshot.val());

yimengtianya

/* 
This example shows how you can use your data structure as a basis for 
your Wilddog security rules to implement role-based security. We store
each user by their uid, and use the following simplistic approach
for user roles:

0 - GUEST
10 - USER
20 - MODERATOR
99 - ADMINISTRATOR

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function go() {
	var userId = prompt('Username?', 'Guest');
	checkIfUserExists(userId);
}

var USERS_LOCATION = 'https://<your-appid>.wilddogio.com//users';

function userExistsCallback(userId, exists) {
	if (exists) {
		alert('user ' + userId + ' exists!');