Angular.JS实现无限级的联动菜单(使用demo)

[{
text: 'some text',
value: 'some value'
},]

<select multi-level-select source="getProvinces" name="province" ng-model="form.province" empty="请选择省份"></select>
<select multi-level-select source="getCities" name="city" ng-model="form.city" empty="请选择城市" dependents="province"></select>

controller('myCtrl', ['$scope', function ($scope) {
 
 // angular使用好习惯，将primitive值放到对象上
 var form = {};
 $scope.form = form;
 
 var data = [{
 name: '浙江',
 id: 10,
 cities: [{
  name: '杭州',
  id: 100
 }, {
  name: '宁波',
  id: 101
 }, {
  name: '温州',
  id: 102
 }]
 }, {
 name: '广东',
 id: 20,
 cities: [{
  name: '广州',
  id: 200
 }, {
  name: '深圳',
  id: 201
 }, {
  name: '佛山',
  id: 202
 }]
 }, {
 name: '山东',
 id: 30,
 cities: [{
  name: '济南',
  id: 301
 }, {
  name: '青岛',
  id: 302
 }, {
  name: '烟台',
  id: 303
 }]
 }];
 
 var provinces = [];
 
 var citiesLookup = {};
 
 // 预处理，返回[{text: 'some text', value: 'some value'},]的数据格式
 $.each(data, function (index, province) {
 provinces.push({
  text: province.name,
  value: province.id
 });
 var cities = [];
 $.each(province.cities, function (index, city) {
  cities.push({
  text: city.name,
  value: city.id
  });
 });
 citiesLookup[province.id] = cities;
 });
 
 $scope.getProvinces = function () {
 return provinces;
 };
 
 $scope.getCities = function (values) {
 return citiesLookup[values.province] || [];
 };
 
}]);

$scope.getProvinces = function () {
 return $q(function (resolve) {
 // 异步时应返回promise，这里就不用http了，除了预处理（由使用者自己的业务逻辑负责）外，完全一样
 // 如果需要缓存，也请在这里自己负责
 $timeout(function () {
  resolve(provinces);
 }, 100);
 });
};
 
$scope.getCities = function (values) {
 return $q(function (resolve) {
 $timeout(function () {
  resolve(citiesLookup[values.province] || []);
 }, 100);
 });
};

// angular使用好习惯，将primitive值放到对象上
var form = {};
$scope.form = form;
form.province = 30;
form.city = 301;

<select multi-level-select source="getDays" name="day" ng-model="form.day" empty="请选择周几"></select>
<select multi-level-select source="getHours" name="hour" ng-model="form.hour" empty="请选择时间"></select>
<select multi-level-select source="getCourses" name="course" ng-model="form.course" empty="请选择课程" dependents="day,hour"></select>

controller('myCtrl', function ($scope) {
 
 var form = {};
 $scope.form = form;
 
 $scope.getDays = function () {
 var days = '一二三'.split('');
 days.forEach(function (item, index) {
  days[index] = {
  text: '星期' + item,
  value: '星期' + item
  };
 });
 return days;
 };
 
 $scope.getHours = function () {
 return [{
  text: '09:00-12:00',
  value: '1'
 }, {
  text: '14:00-17:00',
  value: '2'
 }];
 };
 
 var courses = {
 '星期一': {
  '1': [{
  value: '数学',
  text: '数学'
  }, {
  value: '精读',
  text: '精读'
  }],
  '2': [{
  value: '足球',
  text: '足球'
  }]
 },
 '星期二': {
  '1': [{
  value: '听力',
  text: '听力'
  }],
  '2': [{
  value: '数学',
  text: '数学'
  }]
 },
 '星期三': {
  '1': [{
  value: '计算机',
  text: '计算机'
  }],
  '2': [{
  value: '游泳',
  text: '游泳'
  }, {
  value: '古汉语',
  text: '古汉语'
  }]
 },
 };
 
 $scope.getCourses = function (values) {
 if (!values.day || !values.hour) {
  return [];
 }
 return courses[values.day][values.hour];
 };
});