So you converted you static website into a rails app. Where can you find your HTML and CSS now?

1. Where did my HTML and CSS go?
Brigitte Jellinek
Railsgirls Munich Nov 30th 2013!

2. You thought
you knew about HTML and CSS

3. But now that you are using Rails:
where did the HTML and CSS go?

4. Changes in HTML

6. The Layout
(for all pages)
Cut up
HTML
One View
(per page)

7. Cut up and reassemble
I'm embedded
ruby and will
produce html
 /
 /app/views
 index.html
 pages/info.html.erb
 ideas.html
 ideas/index.html.erb
 layout/
application.html.erb

8. Write all Links with link_to
<h1>My Static Webpage</h1>!
<p>it's full off important Tags!</p>!
<p>also, it has a !
<a href="ideas.html">link to my ideas</a></p>!
<h1>My Rails App</h1>!
<p>It's running on rails now.</p>!
<p>it still has a !
<%= link_to "link to my ideas", ideas_path %></p>!

9. Links
 link_to "text", "url"
 link_to "all ideas", ideas_path
 create all internal URLs with *_path

10. rake routes
$ rake routes!
Prefix Verb
root GET
ideas GET
new_idea GET
edit_idea GET
idea GET
URI Pattern
Controller#Action!
/
pages#info!
/ideas(.:format)
ideas#index!
/ideas/new(.:format)
ideas#new!
/ideas/:id/edit(.:format) ideas#edit!
/ideas/:id(.:format)
ideas#show!
 see all the URLs and names of routes
 just add _path or _url to the prefix:
 root_path, ideas_path, new_idea_path, ...
 let Rails take care of URLs for you!

11. Changes in CSS!

12. Link to CSS with
stylesheet_link_tag
<link rel="stylesheet" href="css/bootstrap.css">!
<link rel="stylesheet" href="css/style.css">!
<%= stylesheet_link_tag "application", media: "all" %>!
*= require_self!
*= require_tree .!

13. All my CSS files are magically
exceedingly
assembled into one file!
clever way
to enable
caching

14. The Asset Pipeline: Bigger Picture

15. Use SASS
.button_to, .button_to div, .button_to .btn { !
display: inline;!
}!
.button_to { !
&, div, .btn { !
display: inline;!
}!
}!

16. Use SCSS
.button_to, .button_to div, .button_to.and_this_class{ !
display: inline;!
}!
.button_to!
&, div, &.and_this_class!
display: inline!

17. Summary
 split up your html-files
 one layout in app/views/layouts/
 many views in app/views/
 using ERB – embedded ruby inside <% %>
 Convert all links
 use link_to
 never write URLs, use path-helpers instead
 Move you CSS
 to the asset pipline app/assets/stylesheets
 Convert you CSS
 to SASS, SCSS or LESS
 Use all your knowledge of HTML Tags, CSS, ...
 with tiny adjustments

18. Learn more! Come to Salzburg
 Summer University "
for Women in IT: Aug25-Sep9 2014
 Call for Lectures out soon!
 Weekend-Courses in March + May
 http://ditact.ac.at
 Barcamp on Web Development
March 14+15 2014
 Every Oct and March
 http://lanyrd.com/series/
barcamp-salzburg/

19. Learn More! Come to Salzburg
 Web Dev User group in
Salzburg
 BSc. Web Development
 once a month
 Austrian Public University "
of Applied Science (FH)
 Join us on http://meetup.com
 MSc. Web Development
 http://multimediatechnology.at

20. Brigitte Jellinek
http://brigitte-jellinek.at
@bjelline
brigitte.jellinek@fh-salzburg.ac.at