访问handlebars.js模板中的数据

Question

我具有以下JSON数据集，并希望遍历users并为他们可以访问的每个apps提供一个链接。 我已经成功地遍历了用户数组，并从每个用户所包含的应用程序数组中呈现了每个应用程序的名称。 但是，我不知道如何从apps数组中查找app的URL。 这可以在Handlebars.js模板中完成吗？

    { "config": {
        "users":
        [
            {
                "name": "Bob Jones",
                "title": "Developer",
                "apps": ["app1","app2","app4"]           
            },
            {
                "name": "Brad Willis",
                "title": "Manager",
                "apps": ["app2","app4"]       
            }
        ],
        "apps":
        [
            {
                "name": "app1",
                "url": "http://host/app1"
            },
            {
                "name": "app1",
                "url": "http://host/app1"
            },
            {
                "name": "app1",
                "url": "http://host/app1"
            },
            {
                "name": "app1",
                "url": "http://host/app1"
            }
        ] 
    }
}

这是我当前用于显示用户和应用程序的模板：

{{#each config.users}}
    <div class="user-panel">
        <div class="user-panel-name">{{this.name}}</div>
        <div class="user-panel-title">{{this.title}}</div>
        <div class="user-panel-apps">                          
            {{#each this.apps}}
                <a class="btn btn-success btn-sm" onclick="DoLogin('APP URL GOES HERE');">{{this.name}}</a>
            {{/each}}
        </div>                       
    </div>
{{/each}}

Answer 1

  {{#each this.apps}} <a class="btn btn-success btn-sm" onclick="DoLogin('{{this.url}}');">{{this.name}}</a> {{/each}} 

Answer 2

注册一个helper以获取特定应用程序的URL。

模板：

{{#each config.users}}
    <div class="user-panel">
        <div class="user-panel-name">{{this.name}}</div>
        <div class="user-panel-title">{{this.title}}</div>
        <div class="user-panel-apps">
            {{#each this.apps}}
            <a class="btn btn-success btn-sm" onclick="DoLogin('{{url this}}');">{{this}}</a>
                                                                  ^^^^^^^^
            {{/each}}
        </div>
    </div>
{{/each}}

脚本：

    var val = {
        "config": {
            "users": [
                {
                    "name": "Bob Jones",
                    "title": "Developer",
                    "apps": ["app1", "app2", "app4"]
                },
                {
                    "name": "Brad Willis",
                    "title": "Manager",
                    "apps": ["app2", "app4"]
                }
            ],
            "apps": [
                {
                    "name": "app1",
                    "url": "http://host/app1"
                },
                {
                    "name": "app1",
                    "url": "http://host/app1"
                },
                {
                    "name": "app1",
                    "url": "http://host/app1"
                },
                {
                    "name": "app1",
                    "url": "http://host/app1"
                }
            ]
        }
    };
    Handlebars.registerHelper('url', function (app) {
        for (var i = 0, len = val.config.apps.length; i < len; i++) {
            if (app == val.config.apps[i].name) {
                return val.config.apps[i].url;
            }
        }
    });