New Helper: Each Include Parent - (Works with partials)

[AndrewHenderson]

This helper allows a parent context to be accessed when using partial templates inside of an each.
Note: It has no dependencies other than Handlebars. Uses a local _each function that is a port of jQuey.each.
Usage: {{#eachIncludeParent context parent=this}}{{> template-partial }}{{/eachIncludeParent}}
See demo: jsFiddle - http://jsfiddle.net/AndrewHenderson/kQZpu/5/
Comment Thread: #182 (comment)

[mpetrovich]

I think this might be a better approach: #368

[AndrewHenderson]

I like this approach, however it fails the build test. I tried to get to work on JsFiddle (http://jsfiddle.net/kQZpu/11/), but I get an error. There seems to be an issue with the return statement:

return Handlebars.SafeString(Handlebars.VM.invokePartial(Handlebars.partials[name], name, context, {}, Handlebars.partials));

That line throws the following error, which you can see in console:

Uncaught TypeError: Cannot call method 'call' of undefined

I tried investigating those Handlebars methods, but they're not documented and are difficult to trace.

[mpetrovich]

One issue may be that you're using an older version of Handlebars (1.0.0beta6). Use this version, which is one of the last releases (post-1.0.0.rc1): https://dl.dropbox.com/u/22528488/handlebars.js

[AndrewHenderson]

Thanks. I updated the version. No longer receive the error, however the context is lost an variables are returned undefined. http://jsfiddle.net/AndrewHenderson/kQZpu/13/. Look in console for logging.

Have you been able to get this to work in a reduced test case?

[pward123]

It looks like you must merge the template name into the hash. If you keep them separate, it goofs the options hash
http://jsfiddle.net/QV9em/3/

[pward123]

FWIW, I prefer to just have the partial called like so...

<script id="template" type="text/x-handlebars-template">
    <!-- with partial -->
    {{#each hobbies}}
        {{#include parent=.. }}
            {{> template-partial}}
        {{/include}}
    {{/each}}
</script>

See http://jsfiddle.net/QV9em/4/ for a working sample

[kpdecker]

I'm sorry for not giving this any attention after being opened so long ago. The hash passing approach is a good one but this should be part of the core partials syntax as it avoids the caveat above and make this a proper first level implementation. I will provide an update on #182 implementing something to that effect.