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Fix Rack slides #242

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Merged
dzemlianoi-double merged 2 commits into from
Nov 23, 2020
Merged

Fix Rack slides #242

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1332b08
Fix Rack slides
Volosh1n Nov 12, 2020
5243ec0
Fix typo
Volosh1n Nov 12, 2020
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16 changes: 9 additions & 7 deletions slides/rack.markdown
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Original file line number Diff line number Diff line change
Expand Up @@ -216,24 +216,25 @@ config.ru <!-- .element: class="filename" -->

```ruby
require './middlewares/racker'
run Racker.new

run Middlewares::Racker.new
```

lib/racker.rb <!-- .element: class="filename" -->
middlewares/racker.rb <!-- .element: class="filename" -->

```ruby
require 'erb'

module Middlewares
class Racker
def call(env)
Rack::Response.new(render('index.html.erb'))
Rack::Response.new(render('index.html.erb')).finish
end

private

def render(template)
path = File.expand_path("../views/#{template}", __FILE__)
path = File.expand_path("../lib/views/#{template}", __FILE__)
ERB.new(File.read(path)).result(binding)
end
end
Expand Down Expand Up @@ -345,6 +346,7 @@ config.ru <!-- .element: class="filename" -->

```ruby
require './middlewares/racker'

run Middlewares::Racker
```

Expand Down Expand Up @@ -378,7 +380,7 @@ module Middlewares
end

def render(template)
path = File.expand_path("../views/#{template}", __FILE__)
path = File.expand_path("../lib/views/#{template}", __FILE__)
ERB.new(File.read(path)).result(binding)
end

Expand Down Expand Up @@ -455,7 +457,7 @@ lib/views/index.html.erb <!-- .element: class="filename" -->
<body>
<div id="container">
<h1>You said '<%= word %>'</h1>
<p>Say somthing new</p>
<p>Say something new</p>
<form method="post" action="/update_word">
<input name="word" type="text">
<input type="submit" value="Say!">
Expand Down Expand Up @@ -523,7 +525,7 @@ Url to Rack::Static - https://github.com/rack/rack/blob/master/lib/rack/static.r

## Rack::Reloader

When you change some code in your application or in `config.ru` you need to 'rackup' your application one more time.
When you change some code in your application (except `config.ru`) you need to 'rackup' your application one more time.
The reason is that `Rack` is not able to reload the code of application.

For such reason, it's recommended to use `Rack::Reloader` middleware
Expand Down