尝试2控制器之间共享一个动态变量 - 角 [英] Trying to share a dynamic variable between 2 controllers - Angular

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问题描述

变量名为 SEARCHTEXT ,这是什么将在搜索框由用户键入

 <输入类型=文本级=表格控NG模型=SEARCHTEXT占位符=类型KVK-nummer和preSS输入ID = typehead>

例如网址:的http://本地主机:8091 / ODATA / DLL-POC-DV /账户('41 -125061-0000')//括号内是searchTeaxt

我想实现的是持有SEARCHTEXT的价值,并在2个不同的控制器使用传递SEARCHTEXT URL中接收数据。所以我得到的service变量和2个控制器共享服务:

  angular.module('serviceModule',[])
        .factory('的DataService',['$ HTTP,DataService的]);    DataService的功能($ HTTP,$ rootScope,$范围){
      返回{
            getSearchText:getSearchText,
            setSearchText:setSearchText,
            getMainData:getMainData
        };
     VAR SEARCHTEXT;   功能setSearchText(值){
         SEARCHTEXT =价值;
      };
   功能getSearchText(){
        返回SEARCHTEXT;
    };   功能getMainData(ID){
       返回$ http.get(HTTP://本地主机:8091 / ODATA / DLL-POC-DV /账户(KVK ='+身份证+'))。然后(
            功能(结果){console.debug(结果);返回result.data.d.results})    };
$范围。$腕表('SEARCHTEXT',函数(的newval,OLDVAL){
            的console.log(的newval,OLDVAL);
        })
};

第一个控制器:

  angular.module('炫魅',['serviceModule'])
      .controller('MainCtrl',['$范围,$ HTTP,DataService的',函数($范围,$ HTTP,DataService的){   dataService.setSearchText($ scope.searchText);    $ scope.getMainData =功能(KVK){
    $ scope.getMainData =功能(){
        dataService.getMainData($ scope.searchText)。然后(功能(数据){
            $ scope.getData =数据;
        })
        };      }]);

第二个控制器:

  angular.module('profileDetail',['serviceModule'])
    .controller('ProfileCtrl', ['$scope','$filter','$http','$q','$routeParams','dataService','moment',function($scope,$filter,$http,$q,$routeParams,dataService,moment){
        //正确数据的初始抢
        功能的init(){        变种SEARCHTEXT = dataService.getSearchText();        dataService.getMainData(SEARCHTEXT)。然后(功能(数据){
            $ scope.getData =数据;
        });
    }     在里面();
    }]);


解决方案

你为什么不实际保存在服务的变量?由于该服务是一个实例,你可以在控制器访问该变量。

  angular.module(应用)
   .factory('的DataService',['$ HTTP,DataService的]);    DataService的功能($ HTTP,$ rootScope,$范围){
    变种SEARCHTEXT =;    功能setSearchText(值){
        SEARCHTEXT =价值;
    }    功能getSearchText(){
        返回SEARCHTEXT;
    }      返回{
          setSearchText:setSearchText,
          getSearchText:getSearchText
      };
};

此方式可以设置1控制变量,然后访问与服务方式的另一个控制器,无需有任何rootScope东西怎么回事。

所以在控制器A 您可以先设置变量 -

 (函数(角){
使用严格的;angular.module(应用)
    .controller('ControllerA',['的DataService',ControllerA]);功能ControllerA(DataService的){
    VAR VM =这一点;    //从该控制器设置变量
    dataService.setSearchText(布拉布拉);};
})(window.angular);

然后在访问它的控制器B -

 (函数(角){
使用严格的;angular.module(应用)
    .controller('ControllerB',['的DataService',ControllerB]);功能ControllerB(DataService的){
    VAR VM =这一点;    //从该控制器设置变量
    变种SEARCHTEXT = dataService.getSearchText();};
})(window.angular);

plnkr: http://plnkr.co/edit/iO7QTY7OBYLEqGuIhCJO?p=preVIEW

Variable is named searchTextand it is what will be typed in the search box by the user

<input type="text" class="form-control" ng-model="searchText"  placeholder=" Type KvK-nummer and Press Enter" id="typehead">

Example URL: http://localhost:8091/odata/dll-poc-dv/Account('41-125061-0000') //in brackets is the searchTeaxt

What I want to achieve is to hold the value of searchText and use in 2 different controllers to pass the searchText in URL to receive data. So I get the variable in the serivce and share that service with 2 controllers:

 angular.module('serviceModule',[])
        .factory('dataService',['$http', dataService]);

    function dataService($http,$rootScope,$scope){
      return{
            getSearchText:getSearchText,
            setSearchText: setSearchText,
            getMainData: getMainData
        };
     var searchText;

   function setSearchText(value){
         searchText = value;
      };
   function getSearchText(){
        return searchText;
    };

   function getMainData(id){
       return $http.get("http://localhost:8091/odata/dll-poc-dv/Account(kvk='"+id+"')").then(
            function (result){ console.debug(result);return result.data.d.results})

    };
$scope.$watch('searchText',function(newVal,oldVal){
            console.log(newVal,oldVal);
        })
};

First Controller:

    angular.module('mainPage',['serviceModule'])
      .controller('MainCtrl',['$scope', '$http','dataService', function ($scope, $http,dataService) {

   dataService.setSearchText($scope.searchText);

    $scope.getMainData = function(kvk){ 
    $scope.getMainData = function(){
        dataService.getMainData($scope.searchText).then(function(data){
            $scope.getData= data;
        })
        };

      }]);

Second Controller:

angular.module('profileDetail',['serviceModule'])
    .controller('ProfileCtrl', ['$scope','$filter','$http','$q','$routeParams','dataService','moment',function($scope,$filter,$http,$q,$routeParams,dataService,moment){
        // initial grab of the right data
        function init (){

        var searchText = dataService.getSearchText();

        dataService.getMainData(searchText).then(function(data){
            $scope.getData = data;
        });
    }

     init();
    }]);

解决方案

Why don't you actually save the variable in the service? Since the service is a single instance and you can access that variable across controllers.

angular.module('app')
   .factory('dataService',['$http', dataService]);



    function dataService($http,$rootScope,$scope){
    var searchText = "";

    function setSearchText(value) {
        searchText = value;
    }

    function getSearchText() {
        return searchText;
    }

      return{
          setSearchText: setSearchText,
          getSearchText: getSearchText
      };


};

This way can set the variable in 1 controller then access it in another controller with the service methods, no need to have any rootScope stuff going on.

So in the Controller A you can set the variable first -

(function (angular) {
'use strict';

angular.module('app')
    .controller('ControllerA', ['dataService', ControllerA]);

function ControllerA(dataService) {
    var vm = this;

    // Set the variable from this controller
    dataService.setSearchText("blabla");

};
})(window.angular);

Then access it in Controller B -

(function (angular) {
'use strict';

angular.module('app')
    .controller('ControllerB', ['dataService', ControllerB]);

function ControllerB(dataService) {
    var vm = this;

    // Set the variable from this controller
    var searchText = dataService.getSearchText();

};
})(window.angular);

plnkr : http://plnkr.co/edit/iO7QTY7OBYLEqGuIhCJO?p=preview

这篇关于尝试2控制器之间共享一个动态变量 - 角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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