Angular UI Bootstrap Datepicker 动态日期（变量）答案

【问题标题】：Angular UI Bootstrap Datepicker dynamic date (variable)Angular UI Bootstrap Datepicker 动态日期（变量）
【发布时间】：2016-04-05 04:54:00
【问题描述】：

我正在使用Angular UI Bootstrap 并创建一个包含两个日期选择器的表单。第一个是今天的日期或我们可以选择的日期，第二个是第一天加上一周，7天。

我能够让它们最初是正确的。

$scope.first = new Date(); $scope.second = new Date().setDate( new Date().getDate() + 7);

但是，如果我更改第一个 datepicker 的日期，第二个不会做任何更改。我发现{{dt | date:'fullDate' }} 捕捉到了动态日期。我的问题是如何让第一个 datepickers 的日期成为一个变量并在我的 .js 文件中进行操作？然后我可以在第一个日期更改时向我的第二个日期选择器添加 +7 天。

Sample code here

【问题讨论】：

标签： javascript angularjs twitter-bootstrap datepicker angular-ui-bootstrap

【解决方案1】：

快速解决方案。在第一次约会时使用观察者。每当第一个日期更改时，将 7 天添加到第二个日期。

angular.module('ui.bootstrap.demo', ['ngAnimate', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('DatepickerDemoCtrl', function ($scope) {
  $scope.today = function() {
    $scope.dt = new Date();
  };
  $scope.today();

  $scope.clear = function() {
    $scope.dt = null;
  };

  $scope.dateOptions = {

    formatYear: 'yy',
    maxDate: new Date(2020, 5, 22),
    minDate: new Date(),
    startingDay: 1
  };

  $scope.open1 = function() {
    $scope.popup1.opened = true;
  };


  $scope.popup1 = {
    opened: false
  };
console.log($scope.dt);

$scope.secondDate = new Date().setDate(new Date().getDate()+7)
$scope.$watch('dt', function(newVal, oldVal){
  var date = $scope.dt
  $scope.secondDate = new Date(date).setDate(new Date(date).getDate()+7)
})
});

<!doctype html>
<html ng-app="ui.bootstrap.demo">
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular-animate.js"></script>
    <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-1.2.5.js"></script>
    <script src="example.js"></script>
    <link href="//netdna.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
  </head>
  <body>

<style>
  .full button span {
    background-color: limegreen;
    border-radius: 32px;
    color: black;
  }
  .partially button span {
    background-color: orange;
    border-radius: 32px;
    color: black;
  }
</style>
<div ng-controller="DatepickerDemoCtrl">
    <pre>Selected date is: <em>{{dt | date:'fullDate' }}</em></pre>
  <pre>Second date is: <em>{{secondDate | date:'fullDate' }}</em></pre>


    <h4>Popup</h4>
    <div class="row">
      <div class="col-md-6">
        <p class="input-group">
          <input type="text" class="form-control" uib-datepicker-popup="{{format}}" ng-model="dt" is-open="popup1.opened" datepicker-options="dateOptions" ng-required="true" close-text="Close" alt-input-formats="altInputFormats" />
          <span class="input-group-btn">
            <button type="button" class="btn btn-default" ng-click="open1()"><i class="glyphicon glyphicon-calendar"></i></button>
          </span>
        </p>
      </div>

      

    </div>

    
</div>
  </body>
</html>

【讨论】：

【解决方案2】：

如果您正在寻找 2 个日期选择器。如果您在许多地方（页面）有相同的案例，您可以将其作为指令。

angular.module('ui.bootstrap.demo', ['ngAnimate', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('DatepickerDemoCtrl', function ($scope) {
  $scope.today = function() 
  {
    $scope.dt = new Date();
  };
  $scope.today();

  $scope.clear = function() 
  {
    $scope.dt = null;
  };

  $scope.dateOptions =
  {

    formatYear: 'yy',
    maxDate: new Date(2020, 5, 22),
    minDate: new Date(),
    startingDay: 1
  };

  $scope.open1 = function() 
  {
    $scope.popup1.opened = true;
  };
   $scope.popup2 = {};

   $scope.open2 = function() 
  {
    $scope.popup2.opened = true;
  };
   
  $scope.popup1 = {
    opened: false
  };

  
   $scope.$watch('dt',function(val,old)
   {
      $scope.opened = false;
      $scope.secondDate = new Date().setDate( new Date(val).getDate() + 7);

    });
  
   console.log($scope.dt);

});

<!doctype html>
<html ng-app="ui.bootstrap.demo">
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular-animate.js"></script>
    <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-1.2.5.js"></script>
    <script src="example.js"></script>
    <link href="//netdna.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
  </head>
  <body>

<style>
  .full button span {
    background-color: limegreen;
    border-radius: 32px;
    color: black;
  }
  .partially button span {
    background-color: orange;
    border-radius: 32px;
    color: black;
  }
</style>
<div ng-controller="DatepickerDemoCtrl">
    <pre>Selected date is: <em>{{dt | date:'fullDate' }}</em></pre>


    <h4>Popup</h4>
    <div class="row">
      <div class="col-md-6">
        <p class="input-group">
          <input type="text" class="form-control" uib-datepicker-popup="{{format}}" ng-model="dt" is-open="popup1.opened" datepicker-options="dateOptions" ng-required="true" close-text="Close" alt-input-formats="altInputFormats" />
          <span class="input-group-btn">
            <button type="button" class="btn btn-default" ng-click="open1()"><i class="glyphicon glyphicon-calendar"></i></button>
          </span>
        </p>
      </div>
<hr>
      <div class="col-md-6">
        <p class="input-group">
          <input type="text" class="form-control" uib-datepicker-popup="{{format}}" ng-model="secondDate" is-open="popup2.opened" datepicker-options="dateOptions" ng-required="true" close-text="Close" alt-input-formats="altInputFormats" />
          <span class="input-group-btn">
            <button type="button" class="btn btn-default" ng-click="open2()"><i class="glyphicon glyphicon-calendar"></i></button>
          </span>
        </p>
      </div>

    </div>

    
</div>
  </body>
</html>

【讨论】：