Question

我来自AngularJS背景，最近开始学习Meteor。

在AngularJS中，我可能有类似的东西：

<div ng-repeat="person in persons | filter:search">
   <h4>{{person.name}}</h4>
   <b>{{person.age}}</b>
</div>

search对象可以绑定（双向绑定）到HTML文本框。只要文本框发生变化，过滤器就会自动更新。

如何在Meteor中这样做？

Answer 1

我不熟悉AngularJS，但这里有一个如何用Meteor实现这个目标的例子。

此示例显示人员列表以及可用于按年龄过滤显示列表的HTML编号输入。

client/views/persons/persons.html

<template name="persons">
  <input class="age" type="number" value="{{filter}}">
  <ul>
    {{#each personsFiltered}}
      {{> person}}
    {{/each}}
  </ul>
</template>

<template name="person">
  <li>{{name}} is {{age}}</li>
</template>

client/views/persons/persons.js

// dummy collection for testing purpose, living only in the client
// (not backed by a real server-side persistent collection)
Persons=new Mongo.Collection(null);

// dummy dataset
Persons.insert({
  name:"Alice",
  age:25
});
Persons.insert({
  name:"Bob",
  age:35
});
Persons.insert({
  name:"Charlie",
  age:18
});

// on create, initialize our filter as a ReactiveVar
// need to meteor add reactive-var to use this
Template.persons.created=function(){
  this.filter=new ReactiveVar(20);
};

Template.persons.helpers({
  // value of the filter to initialize the HTML input
  filter:function(){
    return Template.instance().filter.get();
  },
  // reactively return the persons who are older than the input value
  personsFiltered:function(){
    return Persons.find({
      age:{
        $gt:Template.instance().filter.get()
      }
    });
  }
});

// bind the value of the input to the underlying filter
Template.persons.events({
  "input .age":function(event,template){
    var currentValue=template.find(".age").valueAsNumber;
    template.filter.set(currentValue);
  }
});

Meteor Blaze / Spacebars中的ng-repeat + filter like功能

1 个答案: