Question

我一直在努力合并我的扁平化数据，但是当我扩展我的$ firebaseObject服务时，我有一些非常奇怪的行为。我使用工厂返回用户数据，例如全名，工作正常。但是当我尝试添加第二种方法时，我无法访问此命令。

我的工厂：

// user factory
app.factory("User", ["$firebaseObject", "$firebaseRef",
    function($firebaseObject, $firebaseRef) {
        // create a new service based on $firebaseObject
        var User = $firebaseObject.$extend({
            // these methods exist on the prototype, so we can access the data using `this`
            getTeamName: function() {
                console.log("this: " + this); // Logs: this: [object Object]
                console.log("full name: " + this.firstName + " " + this.lastName); // Logs: full name: undefined undefined
                console.log("this.teams: " + this.teams); //Logs: this.teams: undefined

                var teamKey = this.teams.$value; // TypeError: Cannot read property '$value' of undefined
                console.log("teamKey: " + teamKey);

                var teamObj = $firebaseObject($firebaseRef.teams.child(teamKey));
                console.log("teamObj.teamName: " + teamObj.teamName);
            },
            getFullName: function() { // Runs just fine
                return this.firstName + " " + this.lastName;
            }
        });
        return function(uid) {
            // create an instance of User (the new operator is required)
            return new User($firebaseRef.users.child(uid));
        }
    }
]);

奇怪的是getFullName工作得很好，任何建议？

Answer 1

看起来getTeamName没有返回任何内容

无法通过$ extend向$ firebaseObject添加多个方法

1 个答案: