How to register a helper in Discourse?

Development

AI-generated summary

The discussion revolves around registering a helper in Discourse. stevenpslade initially sought to register a handlebars helper for his plugin, but zogstrip suggested a simpler approach by using Discourse.ajax in the initializer and setting a property on the currentUser object. This solution worked for stevenpslade. Later, leog asked if it’s possible to register a helper without creating a plugin, and riking replied that it can be achieved using a theme component.

1

I’m trying to figure out the best way to register a handlebars helper for my Discourse plugin.

I have an ajax call in my initializer that determines whether the currentUser is part of a particular group. If they are, then they get an extra nav item.

I wanted to do something like this in my hbs file for the nav:

{{#if customHelper}}
//show nav item
{{/if}}

My other theories on how to do this:

  1. Keep the logic in the initializer and use jquery to append the item to the nav.
  2. Create a component for the nav item to only be displayed given the aforementioned logic.

So do you think registering a helper is the best to go, if so how? Or are one of my other approached better.

Thanks for any help or advise!

2

What would customHelper do? Can’t you just do something like this instead?

in your initializer

export default {
  initialize(container) {
    const user = container.lookup('current-user:main');
    Discourse.ajax("/some-url").then(result => user.set("isPartOfParticularGroup", true));
  }
}

and in your .hbs file

{{#if currentUser.isPartOfParticularGroup}}
   // your stuff
{{/if}
3

Wow so simple and works perfectly!

4

Mi scuso per aver riattivato questo argomento, ma si adatta perfettamente alla mia domanda.

Sarebbe possibile registrare un helper senza creare un plugin? Ad esempio, tramite uno script nella sezione head o body dell’HTML del tema?

Grazie in anticipo!

5

Di solito lo si fa utilizzando un componente del tema, sì.