Refactored Anagram Server

20130827074204_create_words.rb

class CreateWords < ActiveRecord::Migration
  def change
    create_table :words do |t|
      t.string :word
      t.string :sorted_letters
      t.integer :length
    end
  end
end

20130827121535_create_anagrams.rb

class CreateAnagrams < ActiveRecord::Migration
  def change
    add_index :words, :sorted_letters
    remove_column :words, :length

    create_table :sorted_letters do |t|
      t.string  :sorted
      t.string  :anagrams, default: ""
      t.integer :count, default: 0
    end

    add_index :sorted_letters, :sorted
    add_index :sorted_letters, :count

  end

end

index.erb

<div class="container">
  <h1>Anagram Finder</h1>

  <form action="/" method="get">
  <% if @input == nil %>
    Find an anagram:
  <% else %> 
    Find another anagram:
  <% end %>

    <br>
    <input type="text" name="input">
    <input type="submit" value="Submit">
  </form>
</div>

  <% unless @input == nil %>
  <div class="container">
    Here are all the anagrams for <%= @input.to_s %>:
  <ul><% if @anagrams %>
    <% @anagrams.each do |w| %>
    <li><%= w %></li>
    <% end %>
    <% end %>
    <% end %>
  </ul>
</div>

index.rb

get '/' do
  @input = params[:input]
  unless @input == nil
    @anagrams = Word.anagrams(@input)
  end
  erb :index
end

seeds.rb

 File.open('/usr/share/dict/words').each do |word|
   Word.create!(word: word.chomp, sorted_letters: word.chomp.split('').sort.join)
 end


Word.all.each do |word|
  sorted = SortedLetter.find_by_sorted(word.sorted_letters)
  if sorted
    SortedLetter.update(sorted.id, :anagrams => sorted.anagrams + " " + word.word, :count => sorted.count + 1)
  else
    SortedLetter.create(:sorted => word.sorted_letters, :anagrams => word.word, :count => 1)
  end
end

sorted_letter.rb

class SortedLetter < ActiveRecord::Base
  # Remember to create a migration!
end

word.rb

class Word < ActiveRecord::Base
  def self.anagrams(input_word)
    sorted_word = input_word.split('').sort.join
    anagrams = []
    SortedLetter.where(sorted: sorted_word).each do |word|
      anagrams = word[:anagrams].split(' ')
    end
    return anagrams.flatten
  end

end