我正试图通过点击按钮从数据库中检索单个随机文档。当页面加载时,它会获得一个文档并显示在网页上;但是,当我尝试单击按钮以检索另一个随机文档并在网页上显示时,它不起作用。
问题是将对象传递给html文件。是的,我是Meteor /模板系统的新手。
main.html中
<body>
<ul>
{{#each resolutions}}
{{> resolution}}
{{/each}}
</ul>
</body>
<template name="resolution">
<li>
<span class="text">{{question}}</span><br>
<button type="button" name="button" class="change-question">Change Question</button>
<br>
</li>
</template>
main.js
Resolutions = new Mongo.Collection('questions');
Template.resolution.events({
'click .change-question': function(event, instance){
var collection_size = Resolutions.find().count();
var random = Math.floor(Random.fraction() * collection_size);
// choose a random item by skipping N items
var item = Resolutions.findOne({},{
skip: random
});
var objArray = $.makeArray(item);
instance.question.set(objArray);
// window.alert("sometext" + objArray);
}
});
Template.body.helpers({
resolutions: function() {
var collection_size = Resolutions.find().count();
var random = Math.floor(Random.fraction() * collection_size);
// choose a random item by skipping N items
var item = Resolutions.findOne({},{
skip: random
});
var objArray = $.makeArray(item);
return objArray;
}
});
ERROR消息显示'无法读取未定义的属性集'。
感谢任何帮助。