模板助手中的异常：无法读取未定义的属性'名称'

Question

我一直在努力获取用户配置文件以显示特定用户一段时间，现在我已经相当成功。我在标题中出现错误时遇到问题。

我发布一个学校收集这样

Meteor.publish("schoolData", function() { 
    return Schools.find(); 
}); 

我的订阅看起来像这样

Meteor.subscribe('schoolData'); 

我的HTML看起来像这样

<template name="userProfile"> 
    <title>My Profile</title> 
    <table> 
      <tr> 
       <td>User Name: </td> 
      <td>{{userName}}</td> 
     </tr> 
     <tr> 
      <td>First Name: </td> 
      <td>{{firstName}}</td> 
     </tr> 
     <tr> 
      <td>Last Name: </td> 
      <td>{{lastName}}</td> 
     </tr> 
     <tr> 
      <td>Registered E-mail: </td> 
      <td>{{email}}</td> 
     </tr> 
     <tr> 
      <td>Contact E-mail: </td> 
      <td>{{email}}</td> 
     </tr> 
     <tr> 
      <td>Phone Number: </td> 
      <td>{{phoneNumber}}</td> 
     </tr> 
     <tr> 
      <td>School: </td> 
      <td>{{schoolName}}</td> 
     </tr> 
     <tr> 
      <td>First year: </td> 
      <td>{{firstSchoolYear}}</td> 
     </tr> 
     <tr> 
      <td>Last year: </td> 
      <td>{{lastSchoolYear}}</td> 
     </tr> 
     <tr> 
      <td>Matriculated? </td> 
      <td>{{matriculated}}</td> 
     </tr> 
     <tr> 
      <td>House Name: </td> 
      <td>{{houseName}}</td> 
     </tr> 
     <tr> 
      <td>Country living in: </td> 
      <td>{{country}}</td> 
     </tr> 
     <tr> 
      <td>City living in: </td> 
      <td>{{cityOfResidence}}</td> 
     </tr> 
     <tr> 
      <td>Industry employed in: </td> 
      <td>{{emplIndustry}}</td> 
     </tr> 
    </table> 
</template> 

和JavaScript看起来像这样

Template.userProfile.helpers({ 
    email: function() {return Meteor.user().emails[0].address}, 
    userName: function() {return Meteor.user().username}, 
    firstName: function() {return Meteor.user().profile.firstname}, 
    lastName: function() {return Meteor.user().profile.lastname}, 
    phoneNumber: function() {return Meteor.user().profile.phone}, 
    schoolName: function() {return  Schools.findOne(Meteor.user().profile.schoolName).name;}, 
    firstSchoolYear: function() {return Meteor.user().profile.firstschoolyear}, 
    lastSchoolYear: function() {return Meteor.user().profile.lastschoolyear}, 
    matriculated: function() {return Meteor.user().profile.matriculated}, 
    houseName: function() {return Meteor.user().profile.housename}, 
    country: function() {return Meteor.user().profile.country}, 
    cityOfResidence: function() {return Meteor.user().profile.cityofresidence}, 
    emplIndustry: function() {return Meteor.user().profile.emplindustry}, 
    signedUp: function() {return Meteor.user().profile.createdAt}, 
}); 

我似乎得到了错误 在模板助手中的异常：TypeError：无法读取未定义的属性'名称' 它是mese这是来自Schools集合。 有人可以帮我发现我的错误，请。

Answer 1

首先，有更好的方法做你想做的achieve-包装所有的HTML与{{#with用户}}标签是这样的：

<template name="userProfile"> 
    {{#with user}} 
    <title>My Profile</title> 
    <table> 
      <tr> 
       <td>User Name: </td> 
      <td>{{userName}}</td> 
     </tr> 
     <tr> 
      <td>First Name: </td> 
      <td>{{firstName}}</td> 
     </tr> 
     <tr> 
      <td>Last Name: </td> 
      <td>{{lastName}}</td> 
     </tr> 
     <tr> 
      <td>Registered E-mail: </td> 
      <td>{{email}}</td> 
     </tr> 
     <tr> 
      <td>Contact E-mail: </td> 
      <td>{{email}}</td> 
     </tr> 
     <tr> 
      <td>Phone Number: </td> 
      <td>{{phoneNumber}}</td> 
     </tr> 
     <tr> 
      <td>School: </td> 
      <td>{{schoolName}}</td> 
     </tr> 
     <tr> 
      <td>First year: </td> 
      <td>{{firstSchoolYear}}</td> 
     </tr> 
     <tr> 
      <td>Last year: </td> 
      <td>{{lastSchoolYear}}</td> 
     </tr> 
     <tr> 
      <td>Matriculated? </td> 
      <td>{{matriculated}}</td> 
     </tr> 
     <tr> 
      <td>House Name: </td> 
      <td>{{houseName}}</td> 
     </tr> 
     <tr> 
      <td>Country living in: </td> 
      <td>{{country}}</td> 
     </tr> 
     <tr> 
      <td>City living in: </td> 
      <td>{{cityOfResidence}}</td> 
     </tr> 
     <tr> 
      <td>Industry employed in: </td> 
      <td>{{emplIndustry}}</td> 
     </tr> 
    </table> 
{{/with}} 
</template> 

和帮助，如：

user: function(){return Meteor.users.findOne({_id:Meteor.userId()}); 

现在你可以在HTML中使用的所有数据从用户采集没有帮手

而且你的问题 - 你做你的查询错了，应该是这样的：

schoolName: function() { 
    return Schools.findOne({name:Meteor.user().profile.schoolName}).name; 
}, 

我以为你想name检查学校，如果你在profile.schoolName变化name与_id