如何过滤角度NG-重复使用的日期范围? [英] How do I filter angular ng-repeat to use ranges of dates?
问题描述
所以我使用的NG-重复列出有关的事件,其中之一是日期字段的一些信息。我想过滤的日期,例如,能够显示事件接下来的30天。我不知道采取什么样的方向做到这一点。
<表>
&所述; TR>
<第i个标题< /第i
<第i说明< /第i
<第i个开始时间与LT; /第i
< / TR>
< TR NG重复=EVENTDATA在eventListData |排序依据:'+的startDateTime'>
&所述; TD> {{eventData.Title}}&下; / TD>
&所述; TD> {{eventData.Description}}&下; / TD>
< TD> {{eventData.StartDateTime |日期:倒是MMM YYYY}}< / TD>
< / TR>
< /表>
首先,排序依据的语法是错误的。它应该是排序依据:'+的startDateTime',其中+/-控制递增/递减的方向,和'的startDateTime(记单引号)是掐领域
使用起始日期为功放和时间戳;做>现在 - < NOW +30天,然后你有2个选择:
- 过滤模式阵列它得到您的视图之前
- 请对角和放一个过滤器;使用它
我喜欢第二个选项好,我觉得它有角的精神更好地配合,并允许更多的动态与数据搞乱。我做了一个例子这里
VAR应用= angular.module('应用',[]);//滤波器阵列由@field {}字符串
//从现在开始返回从今天项目@days {}数
//例如:活动|即将到来的:的startDateTime':30
app.filter('即将',函数(){
返回功能(项目现场,天){
变种timeStart = Date.now();
VAR timeEnd = Date.now()+(天* 86400000); // 1天毫秒
返回items.filter(函数(项目){
收益率(项目[现场]> timeStart和放大器;&放大器;项目[现场]< timeEnd);
});
};
});app.controller('CTRL',函数($范围){
//演示数据,的startDateTime应该在你的数据编号
$ scope.eventListData = [
{
标题:'事件1(去年30 DYS),
说明:一个很酷的事件,
的startDateTime:Date.now()+(86400000 * 5)// 5天
},
{
标题:'事件2(下),
说明:一个很酷的事件,
的startDateTime:Date.now()+ 86400000 //在一天
},
{
标题:'事件3(Next下一步),
说明:一个很酷的事件,
的startDateTime:Date.now()+(86400000 * 2)// 2天
},
{
标题:太遥远的事件,
说明:一个很酷的事件,
的startDateTime:Date.now()+(86400000 * 40)// 40天
},
{
标题:已经-happend事件',
说明:一个很酷的事件,
的startDateTime:Date.now() - (86400000 * 2)// 2天前
}
];
});
和这里是HTML:
< HTML NG-应用=应用程序>
< HEAD>
<间的charset = UTF-8 />
<标题>角日期过滤器< /标题>
< /头>
<机身NG控制器=CTRL>
<表>
&所述; TR>
<第i个标题< /第i
<第i说明< /第i
<第i个开始时间与LT; /第i
< / TR>
< TR NG重复=EVENTDATA在eventListData |即将到来:的startDateTime':30 |排序依据:'+的startDateTime'>
&所述; TD> {{eventData.Title}}&下; / TD>
&所述; TD> {{eventData.Description}}&下; / TD>
< TD> {{eventData.StartDateTime |日期:倒是MMM YYYY}}< / TD>
< / TR>
< /表>
< /身体GT;
< / HTML>
So I am using ng-repeat to list some information about an event, one of which is a date field. I would like to filter the dates, for example, be able to show events in the next 30 days. I am not sure what direction to take to accomplish this.
<table>
<tr>
<th>Title</th>
<th>Description</th>
<th>Start Time</th>
</tr>
<tr ng-repeat="eventData in eventListData | orderBy:'+StartDateTime'">
<td>{{eventData.Title}}</td>
<td>{{eventData.Description}}</td>
<td>{{eventData.StartDateTime|date:'d MMM yyyy'}}</td>
</tr>
</table>
First, the syntax for orderBy is wrong. It should be "orderBy:'+StartDateTime'" where +/- controls asc/desc direction, and 'StartDateTime' (mind single-quotes) is the field to pluck from.
Use timestamps for StartDate & do > now - < now + 30days, and then you have 2 options:
- Filter model array before it gets to your view
- Make a filter for angular & use it
I like the second option better, and I feel like it better fits with the spirit of angular, and allows more dynamic messing with the data. I made an example here
var app = angular.module('app', []);
// filter array by @field {String}
// return items from today to @days {Number} from now
// eg: events | upComing:'StartDateTime':30
app.filter('upComing', function(){
return function(items, field, days){
var timeStart = Date.now();
var timeEnd = Date.now() + (days * 86400000); // 1 day in ms
return items.filter(function(item){
return (item[field] > timeStart && item[field] < timeEnd);
});
};
});
app.controller('ctrl', function($scope){
// demo data, StartDateTime should be numbers in your data
$scope.eventListData = [
{
Title:'Event 1 (last in 30 dys)',
Description:'A cool Event',
StartDateTime: Date.now() + (86400000 * 5) // in 5 days
},
{
Title:'Event 2 (next)',
Description:'A cool Event',
StartDateTime: Date.now() + 86400000 // in a day
},
{
Title:'Event 3 (next next)',
Description:'A cool Event',
StartDateTime: Date.now() + (86400000 * 2) // in 2 days
},
{
Title:'Too-far-away Event',
Description:'A cool Event',
StartDateTime: Date.now() + (86400000 * 40) // in 40 days
},
{
Title:'Already-happend Event',
Description:'A cool Event',
StartDateTime: Date.now() - (86400000 * 2) // 2 days ago
}
];
});
and here is the HTML:
<html ng-app="app">
<head>
<meta charset=utf-8 />
<title>Angular Date Filter</title>
</head>
<body ng-controller="ctrl">
<table>
<tr>
<th>Title</th>
<th>Description</th>
<th>Start Time</th>
</tr>
<tr ng-repeat="eventData in eventListData | upComing:'StartDateTime':30 | orderBy:'+StartDateTime'">
<td>{{eventData.Title}}</td>
<td>{{eventData.Description}}</td>
<td>{{eventData.StartDateTime|date:'d MMM yyyy'}}</td>
</tr>
</table>
</body>
</html>
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