AngularJS&安培; JSON - 从previous和放大器获得的价值;下一个对象 [英] AngularJS & JSON - Obtain Value from Previous & Next Object

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问题描述

背景:
我已经创建了一个AngularJS测试应用程序,它从一个JSON文件,该文件被分成类别,并在每个类别是通过NG-重复显示雇员卡获得的数据。然后这些类别可以被看作利用(使用bxSlider)一个滑块。

目标:
随着bxSlider你可以使用自定义下一个/ previous按钮,我想要的东西,实现了动态显示在Next / previous按钮相关的类别名称(请参见注释链接如下 - 我的级别不允许我发表图片)。

网站类别滑块线框

例如: 上鉴于目前的类别是技术部门,previous按钮,然后可能会显示汽车公司的部门和下一个按钮可以显示法律部门。

据我所知,低于code将使我访问类别名称技术。然而,这需要在一个动态性工作要做。

  {{员工[0] .category}}

下面这个我将包括所有我认为相关code。

JSON文件

  [
  {
    类别:技术
    短名称:高科技,
    图标:FA-桌面
    卡:
      {
        ID:卡1,
        名:乔治Sofroniou
        短名称:G_Sof
        时代:23,
        公司:Pirean有限公司
        角色:研究生UI开发
      },
      {
        ID:卡2,
        名:史蒂夫·乔布斯
        短名称:S_Jobs
        时代:56(死),
        公司:苹果公司,
        角色:前CEO
      },
      {
        ID:卡3
        名:马克·扎克伯格
        短名称:M_Zuck
        时代:30,
        公司:脸谱,
        角色:CEO
      },
      {
        ID:卡4,
        名:蒂姆·库克
        短名称:T_Cook
        时代:54
        公司:苹果公司,
        角色:CEO
      },
      {
        ID:卡5
        名:强尼伊夫
        短名称:J_Ive
        时代:48,
        公司:苹果公司,
        角色:设计的高级副president
      },
      {
        ID:卡6,
        名:玛丽莎梅耶
        短名称:M_May
        时代:39,
        公司:雅虎,
        角色:CEO
      },
      {
        ID:卡7
        名:伊夫贝哈尔
        短名称:Y_Beh
        时代:47,
        公司:Fuseproject
        角色:方正
      }
    ]
  },
  {
    类别:汽车,
    短名称:MOT
    图标:FA-车,
    卡:
      {
        名:伊隆·马斯克
        短名称:E_Musk
        时代:43,
        公司:特斯拉汽车
        角色:CEO
      }
    ]
  },
  {
    类别:足球
    短名称:脚,
    图标:FA-futbol的-O,
    卡:
      {
        ID:卡1,
        名:弗格森
        短名称:A_Fer
        时代:73
        公司:N / A,
        角色:退役
      }
    ]
  },
  {
    类别:公司法,
    短名称:法,
    图标:FA-木槌
    卡:
      {
        ID:卡1,
        名:哈维幽灵
        短名称:H_Spec
        时代:43,
        公司:皮尔逊斯佩克特利特
        角色:名合作伙伴
      }
    ]
  }
]

HTML code:

 <! - 滑块容器 - >
    < D​​IV CLASS =滑块容器>
        <! - 搜索内容 - >
        < - 控制:真 - >
        < D​​IV CLASS =内容结果bxslider
        BX滑块=模式:横向,寻呼机:真的,nextSelector:#next',prevSelector:#preV',nextText:'< I类= \\'发FA-chevron-正确的\\'>< / I>',prevText:'< I类= \\'发FA-字形左\\'>< / I>',minSlides:1,maxSlides:1, infiniteLoop:真的,adaptiveHeight:真,hideControlOnEnd:假>
            <! - 员工 - >
            < D​​IV CLASS =卡容器
            NG-重复=在过滤=项目(员工|过滤器:查询|排序依据:empOrder:方向)
            通知-重复成品>
                < D​​IV CLASS =类别NG-动画='动画'>
                    < D​​IV CLASS =类别标题>
                        < H1类=称号猫>< I类=发{{item.icon}}>< / I>&安培; NBSP; {{item.category}}< / H1>
                    < / DIV>
                    < D​​IV CLASS =类卡容器>
                        < D​​IV CLASS =员工卡牌NG-重复=员工在过滤=(item.cards |过滤器:查询|排序依据:empOrder:方向)DOM操纵>
                            <! - 接待卡 - >
                            < D​​IV CLASS =前>
                                < D​​IV CLASS =PIC-容器>
                                    < IMG NG-SRC =../静态/图像/占位符/ {{employee.shortname}} JPG。阶级=EMP-PICALT =照片{{employee.name}}>
                                    < H3类=EMP-名> {{employee.name}}< / H3 GT&;
                                < D​​IV CLASS =变暗>< / DIV>
                                < / DIV>
                                < UL类=EMP-细节>
                                    <李班=细节EMP-时代>
                                        <&H5 GT;年龄:其中;小> {{employee.age}}< /小>< / H5>
                                    < /李>
                                    <李班=细节EMP-角色>
                                        <&H5 GT;作用:其中; BR><小> {{employee.role}}< /小>< / H5>
                                    < /李>
                                    <李班=细节EMP-公司>
                                        <&H5 GT;公司:其中; BR><小> {{employee.company}}< /小>< / H5>
                                    < /李>
                                < / UL>
                            < / DIV>
                            <! - END接待卡 - >
                            <! - 回卡 - >
                            < D​​IV CLASS =后面>
                                < D​​IV ID =地图加载>
                                    < I类=发FA-地图标记>< I&GT /;
                                < / DIV>
                                < D​​IV ID =地图容器>
                                    < D​​IV ID =GoogleMap的>< / DIV>
                                < / DIV>
                                < I类=发发次>< / I>
                            < / DIV>
                            <! - END返回卡 - >
                        < / DIV>
                    < / DIV>
                < / DIV>
                < - !不匹配 - >
                < D​​IV CLASS =不匹配的NG-秀=filtered.length == 0>
                    < H3类=无matchText>您的搜索不提供匹配<!/ H3 GT&;
                < / DIV>
                <! - 到底有没有匹配 - >
            < / DIV>
            <! - END员工 - >
        < / DIV>
        <! - END搜索内容 - >
        <! - 下一个&放大器; previous按钮 - >
        < D​​IV CLASS =BTN-NEXT preV>
            < D​​IV CLASS =下一个容器>
                &所述; A HREF =类=BTN BTN-下ID =下一个>
                &所述; / A>
            < / DIV>
            < D​​IV CLASS =preV-容器>
                所述&; A HREF =类=BTN btn- preVID =preV>
                &所述; / A>
            < / DIV>
        < / DIV>
        <! - END下一个&安培; previous按钮 - >
    < / DIV>
    <! - END滑块容器 - >

AngularJS:

控制器

  VAR personControllers = angular.module('personControllers',['ngAnimate']);// PersonSearch控制器
personControllers.controller('PersonList',['$范围,$ HTTP,
功能($范围,$ HTTP){    $ http.get('../静态/脚本/ data2.json')。
    成功(功能(数据){
        的console.log(JSON文件中加载);
        的console.log(数据);
        $ scope.employees =数据;
        //$scope.empOrder ='名';
    })。
    错误(函数(){
        的console.log(JSON文件未加载);
    });}]);

修改
更新控制器

  VAR personControllers = angular.module('personControllers',['ngAnimate']);// PersonSearch控制器
personControllers.controller('PersonList',['$范围,$ HTTP,
功能($范围,$ HTTP){    $ http.get('../静态/脚本/ data2.json')。
    成功(功能(数据){
        的console.log(JSON文件中加载);
        的console.log(数据);
        $ scope.employees =数据;
        //$scope.empOrder ='名';        //下一个&安培; previous按钮类别标签
        $ scope.getNextCategoryIndex =功能(CURRENTINDEX){
            变种nextIndex = CURRENTINDEX + 1;
            如果(nextIndex> = $ scope.employees.length){
                //移动到开始,如果在列表末尾
                nextIndex = 0;
            }
            返回nextIndex;
        }        $ scope.get prevCategoryIndex =功能(CURRENTINDEX){
            VAR prevIndex = CURRENTINDEX + 1;
            如果(prevIndex℃,){
                //在开始移动到最后一个索引,如果已经
                prevIndex = $ scope.employees.length - 1;
            }
            返回prevIndex;
        }    })。
    错误(函数(){
        的console.log(JSON文件未加载);
    });}]);

更新下一首/ previous按钮

 <! - 下一个&放大器; previous按钮 - >
        < D​​IV CLASS =BTN-NEXT preV>
            < D​​IV CLASS =下一个容器>
                &所述; A HREF =类=BTN BTN-下ID =下一个>
                    {{员工[getNextCategoryIndex($指数)。类}}
                &所述; / A>
            < / DIV>
            < D​​IV CLASS =preV-容器>
                所述&; A HREF =类=BTN btn- preVID =preV>
                    {{员工[获取prevCategoryIndex($指数)。类}}
                &所述; / A>
            < / DIV>
        < / DIV>
        <! - END下一个&安培; previous按钮 - >


解决方案

我可能会做这样的事情:创建函数到控制器,以获得$ ​​P $ pvious旁边指数(处理指数溢出):

  $ scope.getNextCategoryIndex =功能(CURRENTINDEX){
  变种nextIndex = CURRENTINDEX + 1;
  如果(nextIndex> = $ scope.employees.length){
    //移到开始,如果我们已经是在列表的末尾
    nextIndex = 0;
  }
  返回nextIndex;
}$ scope.get prevCategoryIndex =功能(CURRENTINDEX){
  VAR prevIndex = CURRENTINDEX + 1;
  如果(prevIndex℃,){
    //移到最后一个指标,如果我们已经是在开始
    prevIndex = $ scope.employees.length - 1;
  }
  返回prevIndex;
}

然后在HTML调用使用 $指数的那些功能(NG-重复当前索引,看到的为ngRepeat 了解更多详细信息)作为参数AngularJS文档:

<! - 下一个&放大器; previous按钮 - >
    < D​​IV CLASS =BTN-NEXT preV>
        < D​​IV CLASS =下一个容器>
            &所述; A HREF =类=BTN BTN-下ID =下一个>
                {{员工[getNextCategoryIndex($指数)。类}}
            &所述; / A>
        < / DIV>
        < D​​IV CLASS =preV-容器>
            所述&; A HREF =类=BTN btn- preVID =preV>
                {{员工[获取prevCategoryIndex($指数)。类}}
            &所述; / A>
        < / DIV>
    < / DIV>
    <! - END下一个&安培; previous按钮 - >

Background: I have created an AngularJS test app which, obtains data from a JSON file, which is separated into categories and within each category is an employee card which is displayed through ng-repeat. These categories can then be viewed utilising a slider (using bxSlider).

Aim: With bxSlider you can use custom Next/Previous buttons, what I wanted to achieve was to dynamically display the relevant category names in the Next/Previous buttons (please see annotation link below - my level does not allow me to post images).

Website Category Slider Wireframe

For example: the current category on view is the 'Technology' department, the previous button may then show 'Motors' department and the next button may show 'Law' department.

I understand that the code below would allow me to access the Category name 'Technology'. However this needs to be done in a dynamic nature.

{{employees[0].category}}

Below this I will include all what I believe to be relevant code.

JSON file:

[
  {
    "category": "Technology",
    "shortname": "tech",
    "icon": "fa-desktop",
    "cards": [
      {
        "id": "card-1",
        "name": "George Sofroniou",
        "shortname": "G_Sof",
        "age": "23",
        "company": "Pirean Ltd.",
        "role": "Graduate UI Developer"
      },
      {
        "id": "card-2",
        "name": "Steve Jobs",
        "shortname": "S_Jobs",
        "age": "56 (Died)",
        "company": "Apple Inc.",
        "role": "Former CEO"
      },
      {
        "id": "card-3",
        "name": "Mark Zuckerberg",
        "shortname": "M_Zuck",
        "age": "30",
        "company": "Facebook",
        "role": "CEO"
      },
      {
        "id": "card-4",
        "name": "Tim Cook",
        "shortname": "T_Cook",
        "age": "54",
        "company": "Apple Inc.",
        "role": "CEO"
      },
      {
        "id": "card-5",
        "name": "Jony Ive",
        "shortname": "J_Ive",
        "age": "48",
        "company": "Apple Inc.",
        "role": "Senior Vice President of Design"
      },
      {
        "id": "card-6",
        "name": "Marissa Mayer",
        "shortname": "M_May",
        "age": "39",
        "company": "Yahoo!",
        "role": "CEO"
      },
      {
        "id": "card-7",
        "name": "Yves Behar",
        "shortname": "Y_Beh",
        "age": "47",
        "company": "Fuseproject",
        "role": "Founder"
      }
    ]
  },
  {
    "category": "Motors",
    "shortname": "mot",
    "icon": "fa-car",
    "cards": [
      {
        "name": "Elon Musk",
        "shortname": "E_Musk",
        "age": "43",
        "company": "Tesla Motors",
        "role": "CEO"
      }
    ]
  },
  {
    "category": "Football",
    "shortname": "foot",
    "icon": "fa-futbol-o",
    "cards": [
      {
        "id": "card-1",
        "name": "Sir Alex Ferguson",
        "shortname": "A_Fer",
        "age": "73",
        "company": "N/A",
        "role": "Retired"
      }
    ]
  },
  {
    "category": "Law",
    "shortname": "law",
    "icon": "fa-gavel",
    "cards": [
      {
        "id": "card-1",
        "name": "Harvey Specter",
        "shortname": "H_Spec",
        "age": "43",
        "company": "Pearson Specter Litt",
        "role": "Name Partner"
      }
    ]
  }
]

HTML Code:

<!-- Slider Container -->
    <div class="slider-container">
        <!-- Search Content  -->
        <!-- controls: true -->
        <div class="content-results bxslider" 
        bx-slider="mode: 'horizontal', pager: true, nextSelector: '#next', prevSelector: '#prev', nextText: '<i class=\'fa fa-chevron-right\'></i>', prevText: '<i class=\'fa fa-chevron-left\'></i>', minSlides: 1, maxSlides:1, infiniteLoop: true, adaptiveHeight: true, hideControlOnEnd: false">
            <!-- Employee -->
            <div class="cards-container" 
            ng-repeat="item in filtered = ( employees | filter: query | orderBy:empOrder:direction )"
            notify-repeat-finished>
                <div class="category" ng-animate="'animate'" >
                    <div class="category-title">
                        <h1 class="title-cat"><i class="fa {{item.icon}}"></i>&nbsp;{{ item.category }}</h1>
                    </div>
                    <div class="category-cards-container">
                        <div class="employee-card card" ng-repeat="employee in filtered = (item.cards | filter: query | orderBy:empOrder:direction )" dom-manipulation>
                            <!-- Front Card -->
                            <div class="front">
                                <div class="pic-container">
                                    <img ng-src="../static/images/placeholders/{{ employee.shortname }}.jpg" class="emp-pic" alt="Photo of {{ employee.name }}">
                                    <h3 class="emp-name">{{ employee.name }}</h3>
                                <div class="darken"></div>
                                </div>
                                <ul class="emp-details">
                                    <li class="detail emp-age">
                                        <h5>Age: <small>{{ employee.age }}</small></h5>
                                    </li>
                                    <li class="detail emp-role">
                                        <h5>Role: <br><small>{{ employee.role }}</small></h5>
                                    </li>
                                    <li class="detail emp-company">
                                        <h5>Company: <br><small>{{ employee.company }}</small></h5>
                                    </li>
                                </ul>
                            </div>
                            <!-- END Front Card -->
                            <!-- Back Card -->
                            <div class="back">
                                <div id="map-load">
                                    <i class="fa fa-map-marker"></i>
                                </div>
                                <div id="maps-container">
                                    <div id="googleMap"></div>
                                </div>
                                <i class="fa fa-times"></i>
                            </div>
                            <!-- END Back Card -->
                        </div>
                    </div>
                </div>
                <!-- No Matches -->
                <div class="no-match" ng-show="filtered.length == 0">
                    <h3 class="no-matchText">Your search provides no matches!</h3>
                </div>
                <!-- END No Matches -->
            </div>
            <!-- END Employee -->
        </div>
        <!-- END Search Content  -->
        <!-- Next & Previous Buttons -->
        <div class="btn-nextprev">
            <div class="next-container">
                <a href="" class="btn btn-next" id="next">
                </a>
            </div>
            <div class="prev-container">
                <a href="" class="btn btn-prev" id="prev">
                </a>
            </div>
        </div>
        <!-- END Next & Previous Buttons -->
    </div>
    <!-- END Slider Container -->

AngularJS:

Controller

var personControllers = angular.module('personControllers', ['ngAnimate']);

//PersonSearch Controller
personControllers.controller('PersonList', ['$scope', '$http', 
function($scope, $http) {

    $http.get('../static/scripts/data2.json').
    success(function(data) {
        console.log("JSON file loaded");
        console.log(data);
        $scope.employees = data;
        //$scope.empOrder = 'name';
    }).
    error(function(){
        console.log("JSON file NOT loaded");
    });

}]);

EDIT Updated Controller

var personControllers = angular.module('personControllers', ['ngAnimate']);

//PersonSearch Controller
personControllers.controller('PersonList', ['$scope', '$http', 
function($scope, $http) {

    $http.get('../static/scripts/data2.json').
    success(function(data) {
        console.log("JSON file loaded");
        console.log(data);
        $scope.employees = data;
        //$scope.empOrder = 'name';

        //Next & Previous Button Category Label
        $scope.getNextCategoryIndex = function(currentIndex){
            var nextIndex = currentIndex+1;
            if( nextIndex >= $scope.employees.length ){
                //move to start if at list end
                nextIndex = 0;
            }
            return nextIndex;
        }

        $scope.getPrevCategoryIndex = function(currentIndex){
            var prevIndex = currentIndex+1;
            if( prevIndex < 0 ){
                //move to the last index, if already at the start
                prevIndex = $scope.employees.length - 1;
            }
            return prevIndex;
        }

    }).
    error(function(){
        console.log("JSON file NOT loaded");
    });

}]);

Updated Next/Previous Buttons

<!-- Next & Previous Buttons -->
        <div class="btn-nextprev">
            <div class="next-container">
                <a href="" class="btn btn-next" id="next"> 
                    {{ employees[getNextCategoryIndex($index)].category }}
                </a>
            </div>
            <div class="prev-container">
                <a href="" class="btn btn-prev" id="prev">
                    {{ employees[getPrevCategoryIndex($index)].category }}
                </a>
            </div>
        </div>
        <!-- END Next & Previous Buttons -->

解决方案

I would probably do something like this: create functions to your controller to get the previous and next indexes (to handle the index overflows):

$scope.getNextCategoryIndex = function(currentIndex) {
  var nextIndex = currentIndex+1;
  if (nextIndex >= $scope.employees.length) {
    // move over to start if we already were at the end of the list
    nextIndex = 0;
  }
  return nextIndex;
}

$scope.getPrevCategoryIndex = function(currentIndex) {
  var prevIndex = currentIndex+1;
  if (prevIndex < 0) {
    // move over to the last index, if we already are at the start
    prevIndex = $scope.employees.length - 1;
  }
  return prevIndex;
}

And then in the HTML call those functions using $index (the current index of ng-repeat, see AngularJS documentation for ngRepeat for more details) as parameter:

    <!-- Next & Previous Buttons -->
    <div class="btn-nextprev">
        <div class="next-container">
            <a href="" class="btn btn-next" id="next">
                {{employees[getNextCategoryIndex($index)].category}}
            </a>
        </div>
        <div class="prev-container">
            <a href="" class="btn btn-prev" id="prev">
                {{employees[getPrevCategoryIndex($index)].category}}
            </a>
        </div>
    </div>
    <!-- END Next & Previous Buttons -->

这篇关于AngularJS&安培; JSON - 从previous和放大器获得的价值;下一个对象的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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