小编Dom*_*k H的帖子

我正在注意一种快捷方式,可以将字典中的值用作字典中的内部引用.代码显示了我的意思:

var dict = {
    'entrance':{
        'rate1': 5,
        'rate2':10,
        'rate3':20,
    },

    'movies':{
        'theDarkKnight':{
            '00:00':<entrance.rate1>,
            '18:00':<entrance.rate2>,
            '21:00':<entrance.rate3>
        },
        ...
    };

这是一种偷偷摸摸的方式吗？

当使用barlinechart和nvd3.js时,我得到'属性cx ="NaN"'的值无效.显示图表,但yAxis显示错误的整数值(太低),并且在悬停它时图表上的工具提示不会弹出.输入数据如下.

js部分:

function drawCumulativeChart(selector, jsondata ){

    nv.addGraph(function() {
        var chart = nv.models.cumulativeLineChart()
                        .x(function(d) { return d[0] })
                        .y(function(d) { return d[1] })
                        .color(d3.scale.category10().range());

        chart.xAxis.tickFormat(function (d) {
            return d3.time.format("%m/%y")(new Date(d));
        });

        chart.yAxis.tickFormat(d3.format(',.2f'));

        d3.select(selector)
            .datum( **jsondata** ) 
            .transition().duration(500)
            .call(chart);

        nv.utils.windowResize(chart.update);

        return chart;
    }); 
}

jsondata:

[{
    "key":"usercount",
    "values":[
        ["2011-12-31T23:00:00.000Z",22],
        ["2012-01-31T23:00:00.000Z",45],
        ["2012-02-29T23:00:00.000Z",64],
        ["2012-03-31T22:00:00.000Z",86],
        ["2012-04-30T22:00:00.000Z",109],
        ["2012-05-31T22:00:00.000Z",123],
        ["2012-06-30T22:00:00.000Z",145],
        ["2012-07-31T22:00:00.000Z",174],
        ["2012-08-31T22:00:00.000Z",195],
        ["2012-09-30T22:00:00.000Z",207],
        ["2012-10-31T23:00:00.000Z",221],
        ["2012-11-30T23:00:00.000Z",235]
    ]
}] 

数据库原始数据格式:

[time:2012-01-01 00:00:00.0, count:2]

我试图从符合某个标准的对象数组中获取某个对象.

对象的id应该等于scope范围变量$scope.lobbyid.我目前的方法不会将大厅对象传递给控制器​​.

selected lobby表示站点上活动选项卡的数据.所以容器数组只在站点加载时获取一次.

标记

<div ng-repeat="lobby in lobbies | filter:checkLobbyID(lobby)">
    [[lobby.name]]
</div>

调节器

$scope.checkLobbyID = function($lobby) {
    return $lobby.lobbyid == $scope.lobbyid;
}

排列

"lobbies": [
    {
        "isglobal": true,
        "lobbyid": 1,
        "name": "GLOBAL",
    },
    {
        "isglobal": false,
        "lobbyid": 2,
        "name": "stackoverflow rules",
    },
    {
        "isglobal": false,
        "lobbyid": 3,
        "name": "sdadadad",
    }
]

临时解决方案是将以下代码添加到tab-switch事件.但这需要一个副本和另一个范围变量.如何用过滤器实现这一目标？

angular.forEach($scope.lobbies, function(lobby) {
    if (lobby.lobbyid == $scope.lobbyid)
    $scope.currLobby = angular.copy(lobby);
});

我是Grails的新手,我正在拼命想让Spring Security插件运行.我将以下行添加到我的项目中BuildConfig.groovy:

plugins{
    ... 
    compile ":spring-security-core:1.2.7.3" 
    ...
}

然后我尝试通过install-plugin命令安装插件.无论我选择哪种方式,我都无法启动项目,因为我已经运行了s2-quickstart脚本(它创建了Spring Security域类和控制器).

我使用PostgreSQL作为数据库并在Windows 7上运行Groovy/Grails Tool Suite,使用Grails版本2.2.1.

这是错误消息:

| Loading Grails 2.2.1
| Configuring classpath.
| Environment set to development.....
| Packaging Grails application....
| Compiling 7 source files.....
| Running Grails application

Configuring Spring Security Core ...
... finished configuring Spring Security Core

| Error 2013-03-29 22:15:17,677 [localhost-startStop-1] ERROR context.GrailsContextLoader  - Error initializing the application: Error creating bean with name 'instanceTagLibraryApi': Injection of autowired …

我很难将域类对象保存到除默认dataSource之外的dbs中.应该说我可以从日志数据库中读取,但无法保存(UserLog.list()工作).当我运行应用程序时,保存UserLog对象会触发下面的错误.

DataSource.groovy的:

development {
    dataSource {
        dbCreate = "create-drop"
        url="jdbc:postgresql://localhost:5432/db1"
        username = "postgres"
        password = "postgres"
        driverClassName = "org.postgresql.Driver"
    }
    dataSource_log {
        dbCreate = "update"
        url="jdbc:postgresql://localhost:5432/db2"
        username = "postgres"
        password = "postgres"
        driverClassName = "org.postgresql.Driver"
    }
}

log.UserLog:

class UserLog{
    ...
    static mapping = {
        id generator: "hilo"
        version false
        datasource 'log'
    }
}

CONF/BootStrap.groovy中:

import groovy.sql.Sql
import happyfloat.Address

import java.text.DateFormat
import java.text.SimpleDateFormat

import log.UserLog

class BootStrap {

    def list = []
    def dataSource_log
    Random rand = new Random()

    def …