ScaffoldPlusAnswerThree » 履歴 » バージョン 1
Yuumi Yoshida, 2008-01-13 16:01
| 1 | 1 | Yuumi Yoshida | = 演習3解答例 = |
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| 2 | |||
| 3 | == 作業手順 == |
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| 4 | {{{ |
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| 5 | ruby script/generate model user name:string user_id:integer |
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| 6 | ruby script/generate migration AddUserIdToTodo user_id:integer |
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| 7 | rake db:migrate |
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| 8 | }}} |
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| 9 | |||
| 10 | == 変更点 == |
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| 11 | |||
| 12 | === 1. app/models/user.rb === |
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| 13 | Todoとの一対多の関連を記述 |
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| 14 | {{{ |
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| 15 | class User < ActiveRecord::Base |
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| 16 | has_many :todos |
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| 17 | end |
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| 18 | }}} |
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| 19 | |||
| 20 | === 2. app/models/todo.rb === |
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| 21 | Userとの多対一の関連(従属)を記述 |
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| 22 | {{{ |
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| 23 | class Todo < ActiveRecord::Base |
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| 24 | belongs_to :user |
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| 25 | end |
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| 26 | }}} |
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| 27 | |||
| 28 | === 3. app/views/todos/index.html.erb === |
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| 29 | user.nameカラム表示用のコードを追加 |
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| 30 | {{{ |
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| 31 | <h1>Listing todos</h1> |
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| 32 | |||
| 33 | <table> |
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| 34 | <tr> |
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| 35 | <th>Due</th> |
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| 36 | <th>Name</th> |
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| 37 | <th>Task</th> |
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| 38 | </tr> |
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| 39 | |||
| 40 | <%25 for todo in @todos %25> |
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| 41 | <tr> |
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| 42 | <td><%25=h todo.due %25></td> |
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| 43 | <td><%25=h todo.user.name %25></td> |
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| 44 | <td><%25=h todo.task %25></td> |
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| 45 | <td><%25= link_to 'Show', todo %25></td> |
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| 46 | <td><%25= link_to 'Edit', edit_todo_path(todo) %25></td> |
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| 47 | <td><%25= link_to 'Destroy', todo, :confirm => 'Are you sure?', :method => :delete %25></td> |
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| 48 | </tr> |
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| 49 | <%25 end %25> |
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| 50 | </table> |
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| 51 | |||
| 52 | <br /> |
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| 53 | |||
| 54 | <%25= link_to 'New todo', new_todo_path %25> |
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| 55 | }}} |
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| 56 | |||
| 57 | === 4. app/views/todos/show.html.erb === |
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| 58 | user.nameカラム表示用のコードを追加 |
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| 59 | {{{ |
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| 60 | <p> |
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| 61 | <b>Due:</b> |
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| 62 | <%25=h @todo.due %25> |
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| 63 | </p> |
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| 64 | |||
| 65 | <p> |
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| 66 | <b>Task:</b> |
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| 67 | <%25=h @todo.task %25> |
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| 68 | </p> |
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| 69 | |||
| 70 | <p> |
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| 71 | <b>Name:</b> |
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| 72 | <%25=h @todo.user.name %25> |
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| 73 | </p> |
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| 74 | |||
| 75 | <p> |
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| 76 | <b>Memo:</b><br/> |
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| 77 | <%25=new_line(h(@todo.memo)) %25> |
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| 78 | </p> |
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| 79 | |||
| 80 | |||
| 81 | <%25= link_to 'Edit', edit_todo_path(@todo) %25> | |
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| 82 | <%25= link_to 'Back', todos_path %25> |
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| 83 | }}} |
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| 84 | |||
| 85 | === 5. app/views/todos/edit.html.erb === |
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| 86 | user.name入力表示用のコードを追加 |
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| 87 | {{{ |
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| 88 | <h1>Editing todo</h1> |
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| 89 | |||
| 90 | <%25= error_messages_for :todo %25> |
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| 91 | |||
| 92 | <%25 form_for(@todo) do |f| %25> |
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| 93 | <p> |
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| 94 | <b>Due</b><br /> |
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| 95 | <%25= f.date_select :due %25> |
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| 96 | </p> |
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| 97 | |||
| 98 | <p> |
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| 99 | <b>Task</b><br /> |
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| 100 | <%25= f.text_field :task %25> |
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| 101 | </p> |
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| 102 | |||
| 103 | <p> |
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| 104 | <b>Name</b><br /> |
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| 105 | <%25= f.select :user_id, User.find(:all).collect {|u| [ u.name, u.id ] } %25> |
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| 106 | </p> |
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| 107 | |||
| 108 | <p> |
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| 109 | <b>Memo</b><br /> |
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| 110 | <%25= f.text_area :memo %25> |
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| 111 | </p> |
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| 112 | |||
| 113 | <p> |
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| 114 | <%25= f.submit "Update" %25> |
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| 115 | </p> |
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| 116 | <%25 end %25> |
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| 117 | |||
| 118 | <%25= link_to 'Show', @todo %25> | |
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| 119 | <%25= link_to 'Back', todos_path %25> |
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| 120 | }}} |
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| 121 | |||
| 122 | === 6. app/views/todos/new.html.erb === |
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| 123 | user.name入力表示用のコードを追加 |
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| 124 | {{{ |
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| 125 | <h1>New todo</h1> |
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| 126 | |||
| 127 | <%25= error_messages_for :todo %25> |
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| 128 | |||
| 129 | <%25 form_for(@todo) do |f| %25> |
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| 130 | <p> |
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| 131 | <b>Due</b><br /> |
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| 132 | <%25= f.date_select :due %25> |
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| 133 | </p> |
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| 134 | |||
| 135 | <p> |
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| 136 | <b>Task</b><br /> |
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| 137 | <%25= f.text_field :task %25> |
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| 138 | </p> |
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| 139 | |||
| 140 | <p> |
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| 141 | <b>Name</b><br /> |
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| 142 | <%25= f.select :user_id, User.find(:all).collect {|u| [ u.name, u.id ] } %25> |
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| 143 | </p> |
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| 144 | |||
| 145 | <p> |
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| 146 | <b>Memo</b><br /> |
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| 147 | <%25= f.text_area :memo %25> |
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| 148 | </p> |
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| 149 | |||
| 150 | <p> |
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| 151 | <%25= f.submit "Create" %25> |
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| 152 | </p> |
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| 153 | <%25 end %25> |
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| 154 | |||
| 155 | <%25= link_to 'Back', todos_path %25> |
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| 156 | }}} |