Using Components with Multipart Emails (multiple formats)

[jaredmoody]

I was trying to convert a partial that's used in my mailers to a ViewComponent today, and because the partial is used in a multipart email, it has a plaintext template (_thing.text.erb) as well as an html template (_thing.html.erb). I was surprised I could not define a component with two different template formats, I get the following error:

ViewComponent::TemplateError: More than one template found for Mailers::ThingComponent. There can only be one default template file per component.

Maybe I could workaround by using a variant?

It sure would be nice if this just worked out of the box the way that Rails does with different formats.

[joelhawksley]

@jaredmoody I don't see why we couldn't support this. Mind opening a PR with a failing test to get us started? I'd be happy to pair with you on building this feature, send me an email with your availability: joelhawksley@github.com

[joelhawksley]

See our work in progress here: #1681.

At this point, it looks like it will be too much work to land this any time soon. I'm tagging this issue as help wanted in case someone would like to step in and give it shot.

[reeganviljoen]

@jaredmoody @joelhawksley I am working on adding support for this by checking using request.format to determine the format used in rendering the template

[joelhawksley]

@reeganviljoen sounds good, let me know what you think of our previous attempt 😄

[reeganviljoen]

@joelhawksley I looked at the previous attempt and it seemed solid, the only place where I differ is I believe the format should be assumed from the request

[reeganviljoen]

@jaredmoody I have created a discussion around how view_component handles formats because their are similar feature requests, hopefully this will help shed light on implementing this feature