小编Tim*_*ius的帖子

我现在已经玩过这个了,但是无法理解它:

(使用角度1.2.2,angularFire 0.5.0和最新的ng-grid)

所以我有一个firebase,我正在使用angularFire将我的数据提取到ng-grid组件中,如下所示:

//First I go get my data, in this case something called 'grades' from ..../db/grades
    var promise = angularFire(new Firebase($scope.fireBaseUrl), $scope, 'grades');
//When they're fetched I start up a watcher
    promise.then(function(grades) {
    startWatchGrade($scope, filterFilter, appSettings);
});

//Then I bind that grades as a datasource to my ng-grid
$scope.gridOptions = { 
data: 'grades',
enableCellSelection: false,
enableRowSelection: true,
etc....,

效果很好,我已经完成了控制,将新项目添加到"成绩"(推送)和删除项目(拼接),所有内容都很好地反映到ng-grid.像这样:

//Adding new like this is ok
$scope.grades.push({some-new-data-here});

//Deleting old like this is ok
$scope.grades.splice(row.rowIndex, 1);

但是这种方法会自动生成基于int的火钥匙,这些火钥匙在修改时会一直变化,所以我想控制钥匙,所以我改变了添加要使用的项目:

var fbRef = …

与异步模块争夺了半天但是在嵌套几个级别时无法正常工作.

所以这个工作正常:

    var async = require('async')

    var myarr = ["Outer - A", "Outer - B"];
    var myarr2 = ["Inner - A", "Inner - B"];
    var innerComplete = true;

    async.eachSeries(myarr, function( item, outerCallback) {
        console.log('Processing item ' + item);
        async.series([
            function(callback) {
                takeTime(2000, item, callback)
            },
            function(callback) {
                takeTime(1000, item, callback)
            },
            function(callback) {


                outerCallback();
            }
        ], function(err) {
            console.log("---OUTER SEQUENCE---")

        })
    }, function(err){
        console.log("---OUTER LOOP---")

    });

    function takeTime(ms, msg, callback) {
        console.log("Starting " + ms + " ms task from …