Question

我想在UI中从ng-repeat中保存选定的值（用户从下拉列表中选择它）并将其保存到变量中。

 function saveToDb() {  
                        console.log('in func')
                        var postToApi = [];     
                        vm.newStudent.ethnic = [];
                        angular.forEach(vm.newStudent.ethnicity, function (value, data) {
                            vm.newStudent.ethnic.push({
                                ethnicity: value.ethnicity
                            });
                        });
         var regNewStudent = { 
        ethnic: vm.newStudent.ethnic,
             }
                    postToApi.push(regNewStudent)
                    console.log('Student Saved')

Answer 1

您的选择是多个，因此当您在下拉列表中选择一个项目时，将是一个对象数组。

此示例显示了您的数据如何在var regNewStudent中保存对象ethnic是一个数组。这是plnkr

<强> HTML

<!DOCTYPE html>
<html ng-app="plunker">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS Plunker</title>
    <script>document.write('<base href="' + document.location + '" />');</script>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.5.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.11/angular.min.js" data-semver="1.5.11"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl as vm">

    <select ng-model="vm.newStudent.ethnicity" placeholder="Ethnicity" aria-label="Ethnicity" ng-model-options="{trackBy: '$value.code'}" multiple ng-options="opt as opt.name for opt in vm.listofEthnicity">
    </select>

{{vm.newStudent.ethnicity}}

<button ng-click="vm.save()">Save</button>
  </body>

</html>

<强> CONTROLLER

var app = angular.module('plunker', []);

app.controller('MainCtrl', function($scope) {
  var vm = this;
  var regNewStudent = { 
          ethnic: ''
      };

  vm.listofEthnicity = [ 
    { "code": 111, "name": "New Zealand European/Pākehā" }, 
    { "code": 121, "name": "British / Irish" }, 
    { "code": 122, "name": "Dutch" }, 
    { "code": 123, "name": "Greek" }
    ];

    vm.save = function() {
      regNewStudent = { 
          ethnic: vm.newStudent.ethnicity,
      };
        // cause i dont have the postToApi to factory i just console it.
        console.log(regNewStudent);
        //postToApi.push(regNewStudent); //uncomment on your code.
    };

});

如何将ng-repeat中的数据存储到变量中以将其发送到API？

1 个答案: