angularjs return another promise in $q.all - angularjs

Question

in my angularjs/ionic application I'm getting data from a sqlite database and want to get data from a web service which depends on the values of the database variables. I thought this might be possible with:
.factory('WebSrvs', function($http,DatabaseSrvs) {
var getData = function() {
var promiseReceiverUrl = DatabaseSrvs.getLocalValue('value1');
var promiseVehicleId = DatabaseSrvs.getLocalValue('value2');
$q.all([promiseReceiverUrl,promiseVehicleId]).then(function(results) {
if(results[0].rows.length > 0 && results[1].rows.length > 0) {
var v1 = results[0].rows.item(0).Value;
var v2 = results[1].rows.item(0).Value;
var req = {
method: 'POST',
url: v1,
headers: {
'Content-Type': 'application/json; charset=utf-8'
},
data: {
value: v2
},
timeout: 10000,
crossDomain: true
};
return $http(req);
}
});
}
}
But if do it this way and call it with var promise1 = WebSrvs.getData(); I don't get anything back and the app runs in a reloading queue which never ends. What am I doing wrong?

Answer 1

To add to my comments:
.factory('WebSrvs', function($http,DatabaseSrvs) {
var getData = function() {
var promiseReceiverUrl = DatabaseSrvs.getLocalValue('value1');
var promiseVehicleId = DatabaseSrvs.getLocalValue('value2');
return $q.all([promiseReceiverUrl,promiseVehicleId]).then(function(results) {
if(results[0].rows.length > 0 && results[1].rows.length > 0) {
var v1 = results[0].rows.item(0).Value;
var v2 = results[1].rows.item(0).Value;
var req = {
method: 'POST',
url: v1,
headers: {
'Content-Type': 'application/json; charset=utf-8'
},
data: {
value: v2
},
timeout: 10000,
crossDomain: true
};
return $http(req);
}
});
}
return {
getData: getData
};
}

Answer 2

In your factory implementation you need to first return getData function. Also inside getData function you have to return $q.all.
.factory('WebSrvs', function($http,DatabaseSrvs) {
var getData = function() {
var promiseReceiverUrl = DatabaseSrvs.getLocalValue('value1');
var promiseVehicleId = DatabaseSrvs.getLocalValue('value2');
return $q.all([promiseReceiverUrl,promiseVehicleId]).then(function(results) {
...
...
});
}
return {
getData: getData
}
}