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Memoアプリ
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| require "sinatra" | |
| require_relative "memo" | |
| Memo.data_dir = "memos" | |
| get "/" do | |
| @memos = Memo.all | |
| erb :index, layout: :layout | |
| end | |
| get "/new" do | |
| erb :new, layout: :layout | |
| end | |
| get "/:id" do | |
| @memo = Memo.find(params[:id]) | |
| erb :show, layout: :layout | |
| end | |
| get "/:id/edit" do | |
| @memo = Memo.find(params[:id]) | |
| erb :edit, layout: :layout | |
| end | |
| post "/" do | |
| @memo = Memo.new | |
| @memo.body = params[:body] | |
| @memo.create | |
| redirect "/" | |
| end | |
| patch "/:id" do | |
| @memo = Memo.find(params[:id]) | |
| @memo.body = params[:body] | |
| @memo.save | |
| redirect "/#{params[:id]}" | |
| end | |
| delete "/:id" do | |
| @memo = Memo.find(params[:id]) | |
| @memo.destroy | |
| redirect "/" | |
| end | |
| helpers do | |
| def nl2br(text) | |
| text.gsub("\n", "<br>") | |
| end | |
| end |
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| <form action="/<%= @memo.id %>" method="post"> | |
| <input type="hidden" name="_method" value="patch"> | |
| <textarea name="body" cols="60" rows="20"><%= @memo.body %></textarea> | |
| <p><input type="submit" value="変更"></p> | |
| </form> |
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| <ul> | |
| <% @memos.each do |memo| %> | |
| <li> | |
| <a href="<%= memo.id %>"><%= memo.title %></a> | |
| </li> | |
| <% end %> | |
| </ul> | |
| <p><a href="/new">追加</a></p> |
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| <!DOCTYPE html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>メモアプリ</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <link rel="stylesheet" media="all" href="" /> | |
| </head> | |
| </body> | |
| <h1><a href="/">メモアプリ</a></h1> | |
| <%= yield %> | |
| </body> | |
| </html> |
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| require "pathname" | |
| require "securerandom" | |
| class Memo | |
| attr_accessor :id, :title, :body, :created_at, :updated_at | |
| def self.data_dir=(data_dir) | |
| @@data_dir = data_dir | |
| end | |
| def self.data_dir | |
| @@data_dir | |
| end | |
| def self.new_from_path(path) | |
| memo = Memo.new | |
| File.open(path) do |f| | |
| memo.id = File.basename(f, ".txt") | |
| memo.body = f.read | |
| memo.created_at = f.birthtime | |
| memo.updated_at = f.mtime | |
| end | |
| memo | |
| end | |
| def self.find(id) | |
| self.new_from_path("#{self.data_dir}/#{id}.txt") | |
| end | |
| def self.all | |
| Pathname.glob("#{self.data_dir}/*.txt").map do |f| | |
| self.new_from_path(f) | |
| end | |
| end | |
| def self.titles | |
| self.all.map(&:title) | |
| end | |
| def create | |
| @id = generate_id | |
| save | |
| end | |
| def save | |
| File.open("#{@@data_dir}/#{@id}.txt", "w") do |f| | |
| f.write @body | |
| end | |
| end | |
| def destroy | |
| File.delete "#{@@data_dir}/#{@id}.txt" | |
| end | |
| def generate_id | |
| titles = Memo.titles | |
| id = SecureRandom.urlsafe_base64 | |
| while titles.include?(id) do | |
| id = SecureRandom.urlsafe_base64 | |
| end | |
| id | |
| end | |
| def title | |
| @body.chomp.split("\n")&.first || "タイトルなし" | |
| end | |
| end |
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| <form action="/" method="post"> | |
| <textarea name="body" cols="60" rows="20"></textarea> | |
| <p><input type="submit" value="追加"></p> | |
| </form> |
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| <%= nl2br(@memo.body) %> | |
| <p><a href="/<%= @memo.id %>/edit">変更</a></p> | |
| <p> | |
| <form action="/<%= @memo.id %>" method="post"> | |
| <input type="hidden" name="_method" value="delete"> | |
| <input type="submit" value="削除"> | |
| </form> | |
| </p> |
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