deferred promise not working - angularjs

Question

I am using promise in angular for my web app like this-
var deferred = $q.defer();
On Success -
deferred.resolve(profile); // profile = JSON object
On Failure -
deferred.reject(1); // 1 or no value returned
At end of function -
return deferred.promise;
Then I am handing for this returned Promise Object to call another method.But it doesn't call. While if i use Callback(error,success) it works fine.Can somebody suggest what is wrong with my promise.
Code Snippet-
function open() { // for initializing DB,getting called from service
var deferred = $q.defer();
var options = {
Encryption: {
encryptKey: false, // optional encrypt primary key
secrets: [{
name: 'dddd',
key: 'xxxxxxxxxx'
}]
}
};
var schema = {
stores:[{
name:'profile',
encrypted: true
}]
};
var db = new ydn.db.Storage('nowconferdb', schema, options);
db.onReady(function() {
console.log('DB is initialized'); // getting this
profilestorage.setDB(db); // getting called and setting DB in profilestorage service
deferred.resolve(true);
});
db.addEventListener('fail', function (event) {
var err = event.getError();
if (err.name == 'versionchange') {
console.log('The application is updated, please refresh to upgrade.');
profilestorage.setup(db);
} else {
console.log('connection failed with ' + err.name + ' by ' + err.message);
db = null; // no operation can be placed to the database instance
}
deferred.reject(false);
});
return deferred.promise;
}
This is my calling method -
storageservice.open().then(function() {
console.log('post initializing storageservice'); // not getting it.
});
Thanks a lot for your sincere efforts.

Answer 1

What you should do is to call your function inside the success callback of the promise. Assumming you assign your promise to deferred variable:
deferred.then(
function (data) {
// Here you call your other function/method
// It will be called when 'deferred' promise is resolved
anotherFunction();
},
function (error) {
// Handle the error
}
);
I hope this helps, even though the information you give is not enough.