View

Runcobo renders JSON by Jbuilder, renders HTML by Water. Jbuilder is a template engine designed for json using plain Crystal. Water is a template engine designed for html using plain Crystal.

Data transfer

All methods or variables defined in the action are available in the views. This is because the views are compiled in the same scope as the action.

Layout

You can override the default layout conventions in your actions by using the layout declaration. For example:

class BaseAction
  layout "application"
  #...
end

Partial

Runcobo renders partial view by build-in read_file macro. There's no magic about partial view. For example,

src/views/books/index.jbuilder

json.array! "books", books do |json, book|
  {{ read_file("src/views/books/_base_book.jbuilder").id }}
end

src/views/books/_base_book.jbuilder

json.book_id      book.id
json.author       book.author
json.name         book.name
json.published_at book.published_at