Small library for rendering rails partials in to bodies of text

Usage

Create the component templates

app/views/shared/_media.html.erb

<div class="media-image">
  <%= image_tag media_image, data: { align: media_align } %>
  <%= content %>
</div>

app/views/shared/_post_header.html.erb

<h1><%= post.title %></h1>

Register the component

components.rb

Components.register([{
  name: :media,
  locals: [
    {name: :media_image},
    {name: :media_align, default: 'right'}
  ]
},
{
  name: :post_header
}])

Render the component

display_media.rb

Instances of component start and end tags will be rendered in to their respective position. Any content inside the tag is yielded as a content local to the partial.

body = <<-BODY
{{#post_header /}}
{{#media media_image="foo.jpg"}}
  OMG
{{/media}}
BODY

puts Components::Context.new(assigns: { post: Post.find(1) }).render_html(body)

display_media.rb outputs:

<h1>This was a post title</h1>
<div class="media-image">
  <img src="foo.jpg" data-align="right">
  foo
  OMG
</div>