zeke/techweek-rails-notes.md

## techweek-rails-notes.md

      
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              techweek-rails-notes.md
            
          
    puts "hello world"
Interactive ruby:
irb

Type exit to get out.
From the bash command prompt, type clear to clear the screen.
Let's make some people!
rails g scaffold person first_name:string last_name:string spirit_animal:string favorite_color:string favorite_number:float zipcode:integer --pretend

rake db:migrate

To list all available rake tasks:
rake -T
rake -T | grep db

People are live at https://tts-rails2-zeke-1.c9.io/people
Add this to config/routes.rb:
root to: 'people#index'

Working on a stylesheet:
$table-heading-color: #999;

body {
  font-family: "helvetica neue", helvetica, arial;
}

th {
  font-weight: normal;
  color: $table-heading-color;
  text-align: left;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th, td {
  padding: 5px;
}

tr:nth-child(even) {
  background: #EEE;
}

.color-box {
  width:20px;
  height:20px;    
}
HTML for the color-box to be added to app/views/people/show.html.erb:
<div class="color-box" style="background:<%= @person.favorite_color %>;"></div>
HTML for making each person's name a link to their page:
<td>
  <%= link_to person.first_name, person %> 
</td>
Add a first name method to app/models/person.rb:
class Person < ActiveRecord::Base
    
    def full_name
       [first_name, last_name].join(" ")
    end
    
end
Futility! Open up irb in your shell:
color = "red"
phrase = "My favorite color is #{color}"  
phrase.upcase.reverse.split(" ").join(" ").reverse.downcase
State of the person model:
class Person < ActiveRecord::Base
    
    def full_name
       [first_name, last_name].join(" ")
    end
    
    def cleaned_up_favorite_color
        favorite_color.gsub(" ", "") 
    end
    
    def spirit_animal_wikipedia_url
      "https://en.wikipedia.org/wiki/#{spirit_animal}"
    end
    
    def spirit_animal_lucky_url
      "http://www.google.com/search?&sourceid=navclient&btnI=I&q=#{spirit_animal}"    
    end
    
    
end
Go to the shell and type:
rails console