Javascript 将数据从firebase检索到"；选择"；关于Cordova（离子骨架）Angularjs

Iam全新使用angularjs和firebase，带有离子框架

我想用firebase提供的信息填写“下拉列表”

Firebase:

|--0
   |--day
   |--pred
       |--0
          |--name
          |--crit
       |--1
          |--name
          |--crit
|--1
   |--day
   |--pred
       |--0
          |--name
          |--crit
       |--1
          |--name
          |--crit
.......etc.....

// stored data coming from firebase (Controller)
$scope.data = $firebaseArray(fb);

 <select ng-model="myColor" ng-options="d.day for d in data"></select><br> //This one is working 

<select ng-model="myColor2" ng-options="d.pred.name for d in data"></select><br> // This one is NOT WORKING

Js:

|--0
   |--day
   |--pred
       |--0
          |--name
          |--crit
       |--1
          |--name
          |--crit
|--1
   |--day
   |--pred
       |--0
          |--name
          |--crit
       |--1
          |--name
          |--crit
.......etc.....

// stored data coming from firebase (Controller)
$scope.data = $firebaseArray(fb);

 <select ng-model="myColor" ng-options="d.day for d in data"></select><br> //This one is working 

<select ng-model="myColor2" ng-options="d.pred.name for d in data"></select><br> // This one is NOT WORKING

Html:

|--0
   |--day
   |--pred
       |--0
          |--name
          |--crit
       |--1
          |--name
          |--crit
|--1
   |--day
   |--pred
       |--0
          |--name
          |--crit
       |--1
          |--name
          |--crit
.......etc.....

// stored data coming from firebase (Controller)
$scope.data = $firebaseArray(fb);

 <select ng-model="myColor" ng-options="d.day for d in data"></select><br> //This one is working 

<select ng-model="myColor2" ng-options="d.pred.name for d in data"></select><br> // This one is NOT WORKING

//这个正在工作

//这个坏了

主要问题是如何循环所有数据的信息，忽略firebase为数组提供的“唯一ID 0，1”

也许我的firebase结构不正确。任何建议都会有帮助。多谢各位