如何在流星模板中访问父母的数据属性？

Question

I was trying to extend an application and found out that whenever I try to access the _id value from inside an #if clause, it always returns empty...

This example returns the {{_../id}}:

<template name="showsId">
  {{# each comments}}
    <div class="id">{{../_id}}</div>
  {{/each}}
</template>

But this one doesn't:

<template name="doesNotShowId">
  {{# each comments}}
    {{#if editingComments}}
      <div class="id">{{../_id}}</div>
    {{else}}
      <div class="id">{{../_id}}</div>
    {{/if}}
  {{/each}}
</template>

Do you know why this might be happening? As far as I know this should work as expected.

EDIT:

This is a template that's being called from another one, in this fashion:

<template name="statusitems">
  <div>
    {{#each statusItem}}
  <div>
    {{> statusComments }}
  </div>
    {{/each}}
  </div>    
</template>

That's why I'm asking for the {{../_id}}.

Answer 1

For both data contexts, the comment document seems to be provided by the each iterator.

Therefore, I believe you should not be using ../ anyway since the document properties suchs as _id are already provided within the data context.

This should work as is:

<template name="doesNotShowId">
  {{# each comments}}
    {{#if editingComments}}
      <div class="id">{{_id}}</div>
    {{else}}
      <div class="id">{{_id}}</div>
    {{/if}}
  {{/each}}
</template>

So should this:

<template name="doesNotShowId">
  {{# each comments}}
    <div class="id">{{_id}}</div>
  {{/each}}
</template>