Angular with PouchDB native promises

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/pouchdb/2.2.0/pouchdb.min.js"></script>
<div ng-app="myapp" ng-controller="AppController">
    <button ng-click="populate()">Populate Database</button>
    <button ng-click="init()">Load data from Database</button>
    
    <h1>List : </h1>

    <ul>
        <li ng-repeat="item in data track by item._id">{{item.name}}
            <button ng-click="remove(item, $index)">x</button>
        </li>
    </ul>
</div>

JavaScript

var app = angular.module("myapp", []);


app.controller('AppController', function ($scope, Database) {
    var db = new Database('test');

    $scope.init = function () {
        db.all()
            .then(function (result) { 
                $scope.data = result; 
        });
    };

    $scope.populate = function () {
        db.create({
            name: 'One'
        });
        db.create({
            name: 'Two'
        });
        db.create({
            name: 'Three'
        });
    };

    $scope.remove = function (item, index) {
        db.remove(item);
        $scope.data.splice(index, 1);
    };

    $scope.db = db;
});

app.factory('Database', function ($q) {
    var _db,
    _databaseName;

    var Database = function (databaseName) {
        _databaseName = databaseName;
        _db = new PouchDB(_databaseName);
    };

    Database.prototype.all = function () {
        var options = {
            include_docs: true
        };

        return $q.when(_db.allDocs(options))
            .then(function (result) {
            var converted;

            converted = result.rows.map(function (element) {
                return element.doc;
            });

            return converted;
        });
    };

    Database.prototype.create = function (record) {
        return $q.when(_db.post(record))
            .then(function (result) {
            return _db.get(result.id);
        });
    };

    Database.prototype.remove = function (record) {
        return $q.when(_db.remove(record));
    };

    return Database;
});