Using register_output_helper

[phedinkus]

👋🏻 Hello, I am new to Phlex and building my first component. I want to include an icon from Heroicon. In my erb views I can call heroicon relatively easily and it will render the appropriate svg content. I noticed the section in the documentation about register_output_helper and thought that might be a good workaround.

I made a base class like so:

class Components::Base < Phlex::HTML
  register_output_helper :heroicon
end

However when I call heroicon from the inside of the view_template method I receive the following error

What am I missing?

[joeldrapper]

Can you send me new rails app with minimal reproduction of this? Thank you 🙏

[phedinkus]

Aha! This request helped me slow down and think through the problem. I was calling call inside a model and not a view which meant the view_context was nil.

[joeldrapper]

Oh yeah, maybe we can make error messages better in that scenario. It also happens if you use a helper in the initializer.

[phedinkus]

Yeah, it was a bit opaque but I eventually figured it out. Thanks for being so responsive!! ❤️