質問編集履歴
4
変更
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@@ -70,6 +70,7 @@
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70
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```
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/app/view/microposts/_micropost.html.erb
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```ruby
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+
<% micropost = Micropost %>
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<li id="micropost-<%= micropost.id %>">
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<%= link_to gravatar_for(micropost.user, size: 50), micropost.user %>
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<span class="user"><%= link_to micropost.user.name, micropost.user %></span>
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3
エラーコード記述
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@@ -9,6 +9,10 @@
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9
9
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undefined method `user' for #<Class:0x00007fab78d47418>
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11
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Did you mean? super
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12
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+
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13
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+
app/views/microposts/_micropost.html.erb:3:in `_app_views_microposts__micropost_html_erb__4579145426954223205_70304152209200'
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14
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+
app/views/microposts/index.html.erb:2:in `block in _app_views_microposts_index_html_erb___1913828141426248439_70304152043480'
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15
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app/views/microposts/index.html.erb:1:in `_app_views_microposts_index_html_erb___1913828141426248439_70304152043480'
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```
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```ここに言語を入力
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ActionView::Template::Error (undefined method `user' for #<Class:0x0000565271879460>
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2
エラーコード記述
title
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File without changes
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body
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@@ -10,7 +10,28 @@
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10
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undefined method `user' for #<Class:0x00007fab78d47418>
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11
11
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Did you mean? super
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12
12
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```
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13
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-
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13
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+
```ここに言語を入力
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14
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ActionView::Template::Error (undefined method `user' for #<Class:0x0000565271879460>
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15
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+
Did you mean? super):
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16
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1: <% micropost = Micropost %>
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2: <li id="micropost-<%= micropost.ids %>">
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3: <%= link_to gravatar_for(micropost.user, size: 50), micropost.user %>
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4: <span class="user"><%= link_to micropost.user.name, micropost.user %></span>
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5: <span class="content"><%= micropost.content %></span>
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6: <span class="timestamp">
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+
app/views/microposts/_micropost.html.erb:3:in `_app_views_microposts__micropost_html_erb__4579145426954223205_70304152209200'
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24
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+
app/views/microposts/index.html.erb:2:in `block in _app_views_microposts_index_html_erb___1913828141426248439_70304152043480'
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app/views/microposts/index.html.erb:1:in `_app_views_microposts_index_html_erb___1913828141426248439_70304152043480'
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Rendering /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/template_error.html.erb within rescues/layout
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Rendering /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/_source.html.erb
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+
Rendered /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/_source.html.erb (3.8ms)
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Rendering /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb
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Rendered /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.6ms)
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Rendering /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
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Rendered /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (0.6ms)
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Rendered /home/ubuntu/.rvm/gems/ruby-2.6.3/gems/actionpack-5.0.7.2/lib/action_dispatch/middleware/templates/rescues/template_error.html.erb within rescues/layout (17.7ms)
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```
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### 該当のソースコード
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app/model/User.rb
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```ruby
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1
ソースコードを追加しました
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1
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-
Rails
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1
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Rails モデル同士で紐づけをしたのにメソッドがビューで使えません
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1
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-
###
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1
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### 発生している問題・エラーメッセージ
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2
2
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3
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-
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3
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・MicropostモデルとUserモデルを紐づけたが、userメソッドが使えない
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-
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5
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-
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6
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-
### 発生している問題・エラーメッセージ
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7
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・ビューでヘルパーメソッド(userメソッド)を使うとメソッドが定義されてないというエラーが出る
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8
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・userメソッドがなぜかprivateメソッドと認識されてしまっている。
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4
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↓がエラーメッセージです。
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5
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6
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```
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12
7
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NoMethodError in Microposts#index
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8
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+
Showing /home/ubuntu/environment/rails_app/app/views/microposts/_micropost.html.erb where line #3 raised:
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9
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+
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13
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-
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10
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undefined method `user' for #<Class:0x00007fab78d47418>
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14
11
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Did you mean? super
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15
12
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```
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16
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14
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### 該当のソースコード
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-
ヘルパー
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-
```MicropostsHelper
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-
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-
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+
app/model/User.rb
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-
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23
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-
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16
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```ruby
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24
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-
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+
class User < ApplicationRecord
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has_many :microposts, dependent: :destroy
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+
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end
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+
```
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+
app/model/Micropost.rb
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+
```ruby
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+
class Micropost < ApplicationRecord
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belongs_to :user
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+
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end
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```
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-
ビュー
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29
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-
```
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31
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+
```ここに言語を入力
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32
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+
class MicropostsController < ApplicationController
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+
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34
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+
def index
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@microposts=Micropost.all
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+
end
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+
end
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+
```
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39
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+
/app/view/microposts/index.html.erb
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40
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+
```ruby
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30
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-
<%
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41
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<%@microposts.each do |post|%>
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<%= render "microposts/micropost" %>
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<%end%>
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44
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<%= paginate @microposts %>
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+
```
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46
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+
/app/view/microposts/_micropost.html.erb
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47
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+
```ruby
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31
|
-
<li id="micropost-<%= micropost.
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48
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+
<li id="micropost-<%= micropost.id %>">
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32
49
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<%= link_to gravatar_for(micropost.user, size: 50), micropost.user %>
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33
50
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<span class="user"><%= link_to micropost.user.name, micropost.user %></span>
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34
51
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<span class="content"><%= micropost.content %></span>
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@@ -37,12 +54,12 @@
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37
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</span>
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</li>
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39
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|
```
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+
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40
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### 試したこと
|
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41
59
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42
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binding.pryを使ってコンソール内でいくつか検証してみました。
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43
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`Micropost.first.user`⇒ユーザー参照できました。
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44
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`micropost.first.user`も同様です。
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45
|
-
また、privateメソッドにならないようにpublicを挟んでみましたが効果はなかったです。
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46
63
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47
64
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48
65
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### 補足情報（FW/ツールのバージョンなど）
|