RailsでWikiシステムを作成する

> rails railswiki

ruby script/generate controller Wiki index view edit print help

ruby script/server

require ’find’

# This is the core/manager class for the Railswiki application
# Author: Anil Hemrajani
# Date: Feb, 2007

class Wiki
  @@basedir = "."

  @@extension = "wiki"

  def self.basedir(basedir)
    @@basedir = basedir
  end

  # check if file exists
  def self.exists?(basefilename)
    File.file?(getfullpath(basefilename))
  end

  # get file stat
  def self.attributes(basefilename)
    File.stat(getfullpath(basefilename))
  end

  # delete existing wiki file
  def self.delete(basefilename)
    File.delete(getfullpath(basefilename))
  end

  def self.file_extension
    @@extension
  end

  # save raw wiki file contents
  def self.save(basefilename, content)
    mkdir

    file = File.open(getfullpath(basefilename), ’w’)
    begin

      file.print content
    ensure
      file.close
    end
  end

  # return array of wiki file names in basedir
  # get raw wiki file contents

  def self.find(basefilename)
    #unless (FileTest.file?(basefilename)) return "File not found."
    getline = ""
    File.open(getfullpath(basefilename), ’r’) do |f1|
        while line = f1.gets
            getline = getline + line
        end

    end

    getline
  end

  # Get list of file names ending with @@extension
  def self.find_wikis()
    files = []
    Find.find(@@basedir) do |path|
        if File.file?(path) && path =~ /.#{@@extension}$/

           files << File.basename(path, ".#{@@extension}")
        end
    end

    files
  end

  private
  def self.mkdir()
    Dir.mkdir(@@basedir) if !File.exist?(@@basedir)
  end

  def self.getfullpath(basefilename)
      @@basedir + "/" + getfullname(basefilename)
  end

  def self.getfullname(basefilename)
      basefilename + "." + @@extension
  end
end

# Ensure file doesn’t exist (yet)
assert !File.exists?(getfullpath(@filename))

# Test save and find
Wiki.save @filename, DEFAULT_TEXT
assert File.exists?(getfullpath(@filename))
text = Wiki.find(@filename)
assert_equal DEFAULT_TEXT, text

# Test delete
Wiki.delete @filename

# Test exists?
assert !Wiki.exists?(@filename)

Rake::Task[:’test:units’].prerequisites.clear

ENV["RAILS_ENV"] = "test"
 require File.expand_path(File.dirname(__FILE__) 
          + "/../config/environment")
 require ’application’
 require ’test/unit’
 require ’action_controller/test_process’
 require ’breakpoint’

Started
.
Finished in 0.094 seconds.

1 tests, 5 assertions, 0 failures, 0 errors

# This is the front/main controller for the Wiki application
# Author: Anil Hemrajani
# Date: Feb, 2007
class WikiController < ApplicationController
  layout "wiki" , :except => [ :index, :print ]

  def initialize
    Wiki.basedir WIKI_DIR
  end

  def index
    @filelist = Wiki.find_wikis
  end

  def edit
    get_content
  end

  def view
    get_content
  end

  def print
    get_content
  end

  def help
    @filename = get_filename params[:f] # need this for other actions
  end

  # create new wiki file
  def create
    @filename = get_filename params[:f]
    if Wiki.exists?(@filename)
       flash[:error] = 
"File ’#{@filename}’ already exists; use Open instead of Create."
       redirect_to :action => :index
    else

      Wiki.save @filename, ""
      redirect_to :action => :view, :f => @filename
    end
  end

  # delete existing wiki file

  def delete
    if params[:f].nil? || params[:f].empty?
       flash[:error] = "File parameter not specified."
       redirect_to :action => :index
    else
      @filename = get_filename params[:f]
      Wiki.delete @filename
      redirect_to :action => :index
    end

  end

  # save existing wiki file
  def save
    @filename = get_filename params[:f]
    content = params[:c]
    p @filename
    p content
    Wiki.save @filename, content
    redirect_to :action => :view, :f => params[:f]
  end

  private
  def get_filename(f)
    f = "untitled" if (f.nil? || f.empty?)
    f
  end

  # load file into @content using param :f; for errors go to index page

  def get_content
    begin
      @filename = get_filename params[:f]
      @filestat = Wiki.attributes @filename
      @content = Wiki.find @filename
      rescue Errno::ENOENT => exception
           flash[:error] = exception
           redirect_to :action => :index
    end

  end
end

<%= to_html @content %>

require ’redcloth’

module WikiHelper
  # parse and return data as HTML

  def to_html(rawtext)
    return "" if rawtext.nil?

    r = RedCloth.new rawtext
    r.to_html
  end
end

map.connect ’’, :controller => "wiki"

map.connect ’wiki/:action/:f’, :controller => "wiki"