mongodb - Update form in meteor using autoform -

i have collection handles default values forms. need build ui update default values themselves, instead of force updating via mongo backed.

i've used aldeed's update-each functionality. data being fetched db , displayed in table. however, when try update inputting new values in textbox, not persist. in fact, keeps throwing error i'm not aware of.

exception in template helper: typeerror: cannot read property 'namedcontext' of undefined     @ object.autoformfieldisinvalid 

as sample, here i'm working with:

mongo collection:

meteor:primary> db.testcollection.find() { "_id" : objectid("577ccd87f57f43d790c3ec49"), "schemaname" : "test_schema", "label" : "test_lable", "value" : "test_value" } 

schema:

test_schema = new simpleschema({     "schemaname": {         type: string,     },     "label": {         type: string,     },     "value": {         type: string,     } });  testcollection.attachschema(test_schema); 

template:

<template name = "testtemplate">  <table class="table table-bordered table-condensed">   <thead>     <tr>       <td style="width: 85px">schema name</td>         <td style="width: 85px">label</td>       <td>default value</td>       <td style="width: 250px">new default value</td>     </tr>   </thead>   <tbody>     {{#each items}}       <tr>         <td>{{this.schemaname}}</td>         <td>{{this.label}}</td>         <td>{{this.value}}</td>         <td>         {{#autoform id=updatedefaiultsid type="update" collection=testcollection doc=this autosave=true}}           {{> afformgroup name="value" label=false}}         {{/autoform}}         </td>       </tr>     {{/each}}   </tbody> </table>   </template> 

helper

import { template } 'meteor/templating'; import '../templates/testtemplate.html';   if (meteor.isserver) {    meteor.publish(null, function () {     return testcollection.find();   });    testcollection.allow({     update: function () {       return true;     }   }); }  else if (meteor.isclient) {    template["testtemplate"].helpers({     items: function () {       return testcollection.find({}, {sort: {name: 1}});     },     updatedefaiultsid: function () {       return "testtemplate" + this._id;     }   }); } 

change

<td>{{this.schemaname}}</td> 

to

<td>{{this.schema_name}}</td>