Dynamic Partials

[karlhorky]

As mentioned in #349, dynamic partials were added to Handlebars.js in handlebars-lang/handlebars.js#941. They are invoked using the following syntax.

{{> (partialNameHelper) }}

In order to use context variables, Handlebars.js uses the lookup helper like this:

{{> (lookup . 'myVariable') }}

However, the stringFormat helper looks like a viable alternative in Handlebars.java:

{{> (stringFormat "%s" myVariable) }}

[karlhorky]

Updated - the stringFormat helper can probably be used instead of a new lookup helper.

[jknack]

Hi @karlhorky

I'm sorry but don't get how the lookup helper works and what impact it has inside the dynamic partial. Can you add an example?

Thanks

[karlhorky]

Updated the original post again with an example of the lookup helper from Handlebars.js.

[karlhorky]

But I think the stringFormat helper should work in Handlebars.java projects.

[karlhorky]

Thanks @jknack!

[jknack]

no problem and thank you for helping me to identify missing features of handlebars.java vs handlebars.js

I will push to maven central today, but I'm sure new release will be available tomorrow.

[karlhorky]

Glad to help :)

[jknack]

@karlhorky in the next few days, I'm going to release 3.0.0 is there any other pending js feature that we are missing? (compared to handlebarsjs 3.0.0)

thanks

[karlhorky]

Actually, from our side, I haven't needed anything that's missing since Handlebars.java 2.2.0 was released.

Maybe anything else to be found here?
https://github.com/wycats/handlebars.js/blob/master/release-notes.md

Thanks for your hard work!

[karlhorky]

Also check a bit earlier in the release notes - one of my issues was actually about a feature introduced in Handlebars.js 2.0.0 if I recall correctly.

[andreavaghi]

I don't get how i can use Dynamic Partials with Handlebars.java.

i've tried

{{> (dinamycPartial) }}

and

{{> (lookup '.' 'dinamycPartial') }}

where dynamicPartial is a String with the name of the template (es. "partials/test"), but it isn't working
i'm using 2.2.0

[jknack]

here are some unit test that might help: https://github.com/jknack/handlebars.java/blob/master/handlebars/src/test/java/com/github/jknack/handlebars/i375/Issue375.java

also, make sure you don't have a typo: dinamycPartial vs dynamicPartial

[andreavaghi]

fortunately it was only a typo in the question!
looking at the test i've resolved with {{> (lookup . 'dynamicPartial' }}, removing the quotes around the dot

thank you for the really quick help