okkez weblog

  $ rails new groongatter -O -J

source 'http://rubygems.org'

gem 'rails', '3.0.3'

gem 'activegroonga'

  $ bundle install --path vendor/bundle

diff --git a/config/application.rb b/config/application.rb
index 1c1e1aa..296a1d5 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -7,6 +7,8 @@ require "action_mailer/railtie"
 require "active_resource/railtie"
 require "rails/test_unit/railtie"
 
+require "active_groonga/railtie"
+
 # If you have a Gemfile, require the gems listed there, including any gems
 # you've limited to :test, :development, or :production.
 Bundler.require(:default, Rails.env) if defined?(Bundler)

  $ rails generate scaffold user name:short_text
  $ rake groonga:migrate
  $ rails server

  $ rails generate scaffold tweet content:short_text user:reference

<h1>Listing tweets</h1>

<table>
  <tr>
    <th>User</th>
    <th>Content</th>
    <th></th>
    <th></th>
    <th></th>
  </tr>

<% @tweets.each do |tweet| %>
  <tr>
    <td><%= tweet.user.name %></td>
    <td><%= tweet.content %></td>
    <td><%= link_to 'Show', tweet %></td>
    <td><%= link_to 'Edit', edit_tweet_path(tweet) %></td>
    <td><%= link_to 'Destroy', tweet, :confirm => 'Are you sure?', :method => :delete %></td>
  </tr>
<% end %>
</table>

<br />

<%= link_to 'New Tweet', new_tweet_path %>

<p id="notice"><%= notice %></p>

<p>
  <b>User:</b>
  <%= @tweet.user.name %>
</p>

<p>
  <b>Content:</b>
  <%= @tweet.content %>
</p>

<%= link_to 'Edit', edit_tweet_path(@tweet) %> |
<%= link_to 'Back', tweets_path %>

  $ rails generate migration create_full_text_search_index 

class CreateFullTextSearchIndex < ActiveGroonga::Migration
  def up
    create_table("bigram",
                 :type => :patricia_trie,
                 :key_type => "ShortText",
                 :default_tokenizer => "TokenBigram",
                 :key_normalize => true) do |table|
      table.index("tweets.content")
    end
  end

  def down
    remove_table("bigram")
  end
end

  $ rake groonga:migrate

  $ rails console
  >> result_set = Tweet.select(:content => "こん")
  >> pp retult_set.first
  => #<Tweet id: 1,
  user: #<User id: 1, updated_at: 1970-01-01 09:00:00 +0900, name:
  "okkez", created_at: 2010-12-05 15:13:55 +0900>,
  updated_at: 2010-12-05 15:14:58 +0900, created_at: 2010-12-05 15:14:44 +0900, content: "こんにちは！">

Groongatter::Application.routes.draw do
  match "search", :to => "search#index", :as => "search"

  resources :tweets

  resources :users
end

class SearchController < ApplicationController
  def index
    @query = params[:query]
    if @query.blank?
      @result_set = []
    else
      @result_set = Tweet.select do |entry|
        entry.content =~ @query
      end
    end
  end
end

<h1>Search</h1>

<%= render :partial => "form" %>

<%- unless @query.blank? -%>
<p>"<%= @query %>" で検索した結果は <%= @result_set.count %> 件です。</p>
<%- end -%>

<%- unless @result_set.blank? -%>
  <ul>
    <%- @result_set.each do |entry |-%>
      <li><%= entry.user.name %>: <%= entry.content %></li>
    <%- end -%>
  </ul>
<%- end -%>
<typo:code>

<typo:code lang="html">
<%= form_tag(search_path) do %>
  <p>
    <%= text_field_tag(:query, "", :size => 25) %>
    <%= submit_tag("検索") %>
  </p>
<%- end -%>

class CustomOutput < HikiDoc::HTMLOutput
  def initialize(suffix = " />", options = {})
    super suffix
    @options = options
  end

  def inline_plugin(src)
    # あんまり使わないので未実装
  end

  def block_plugin(src)
    name, *args = parse_plugin(src)
    klass = Plugins.const_get(name.classify)
    @f.puts klass.new(@options).call(args)
  rescue NameError => ex
    @f.puts ex.message
  end

  private
  def parse_plugin(src)
    result = []
    if /([a-z0-9_]+)\((.+)\)/m =~ src
      result.push $1
      result.push *$2.split(',').map(&:strip) if $2
    end
    result
  end
end

module Plugins
end
class Plugins::Base
  include ActionView::Helpers, ::ERB::Util

  def initialize(options = {})
    @options = options
  end

  def call(args)
    raise 'must implement in subclass'
  end
end
class Plugins::Echo < Plugin::Base
  def call(args)
    %Q!<pre>#{args.inspect}</pre>!
  end
end

class Issue < ActiveRecord::Base
  has_many :attachments, :class_name => "::Attachment", :dependent => :destroy
end

class Attachment < ActiveRecord::Base
  belongs_to :issue
  has_attached_file :attachment
end

link_to @attachment.attachment_file_name, @attachment.attachment.url

<html>
<head></head>
<body>
<%= yield %>
</body>
</html>

<p> Hello! </p>

require 'erb'

class Template

  def initialize()
    erb = ERB.new(File.read('layout.html.erb'), nil, '-')
    erb.def_method(self.class, 'layout', 'layout.html.erb')
    erb = ERB.new(File.read('body.html.erb'), nil, '-')
    erb.def_method(self.class, 'body', 'body.html.erb')
  end

  def render
    layout{ body }
  end
end

puts Template.new.render

class Template
  def render
    str = body()
    layout{ str }
  end
end