November 2013
Intermediate to advanced
200 pages
4h 31m
English
For an object to be compliant with the handler API, it needs to respond to the call method. This method receives as an argument an instance of ActionView::Template, which we introduced in Writing the Code, and should return a string containing valid Ruby code. The Ruby code the handler returns is then compiled into a method, so rendering a template is as simple as invoking this compiled method.
Before diving into our Markdown + ERB handler, let’s create a few template handlers to get acquainted with the API.
Our first template handler simply allows arbitrary Ruby code as a template. This means the following template is valid:
| | body = "" |
| | body << "This is my first " |
| | body << ... |