如何从angularjs中select的ng更改调用服务方法?
我是新手。我试图从select的ng更改调用工厂服务方法“getScoreData”,但无法完成。请帮忙 Html代码:如何从angularjs中select的ng更改调用服务方法?,angularjs,angularjs-directive,angularjs-service,angularjs-factory,angularjs-ng-change,Angularjs,Angularjs Directive,Angularjs Service,Angularjs Factory,Angularjs Ng Change,我是新手。我试图从select的ng更改调用工厂服务方法“getScoreData”,但无法完成。请帮忙 Html代码: <select ng-model="Score" ng-change="getScoreData(Score)" ng-options="c.name for c in Scores"></select> 上面是服务工厂方法及其在控制器中的实例化。我尝试从ng更改select实例化,但它既没有给出错误,也没有被调用。您的代码中至少有两个问题:
<select ng-model="Score" ng-change="getScoreData(Score)" ng-options="c.name for c in Scores"></select>
上面是服务工厂方法及其在控制器中的实例化。我尝试从ng更改select实例化,但它既没有给出错误,也没有被调用。您的代码中至少有两个问题:
Angular没有看到引用已定义服务的ng change=“getScoreData(Score)
方法getScoreData
我们不需要使用回调,因为getScoreData:函数(分数、回调)
返回承诺。请改用GET
then
<select ng-model="score"
ng-change="getScoreData(score)"
ng-options="score as score.name for score in scores"></select>
<pre>{{ScoreData|json}}</pre>
演示
<select ng-model="score"
ng-change="getScoreData(score)"
ng-options="score as score.name for score in scores"></select>
<pre>{{ScoreData|json}}</pre>
var fessmodule = angular.module('myModule', ['ngResource']);
fessmodule.controller('fessCntrl', function($scope, ScoreDataService) {
$scope.scores = [{
name: 'Bukit Batok Street 1',
URL: 'http://maps.googleapis.com/maps/api/geocode/json?address=Singapore, SG, Singapore, 153 Bukit Batok Street 1&sensor=true'
}, {
name: 'London 8',
URL: 'http://maps.googleapis.com/maps/api/geocode/json?address=Singapore, SG, Singapore, London 8&sensor=true'
}];
$scope.getScoreData = function(score) {
ScoreDataService.getScoreData(score).then(function(result) {
$scope.ScoreData = result;
}, function(result) {
alert("Error: No data returned");
});
};
});
fessmodule.$inject = ['$scope', 'ScoreDataService'];
fessmodule.factory('ScoreDataService', ['$http', '$q', function($http) {
var factory = {
getScoreData: function(score) {
console.log(score);
var data = $http({
method: 'GET',
url: score.URL
});
return data;
}
}
return factory;
}]);