編集履歴

質問編集履歴

書式の改善

2018/04/18 06:38

投稿

yaegashi0852

スコア13

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -14,39 +14,33 @@
 ### 発生している問題・エラーメッセージ
+```
-NameError in Posts#index
+NoMethodError in Posts#index
 Showing /vagrant/new_app/app/views/posts/index.html.erb where line #6 raised:
-undefined local variable or method `user' for #<#<Class:0xb647d34c>:0xb51a2fd8>
+undefined method `image_name' for nil:NilClass
 Extracted source (around line #6):
-4　<div class="posts-index-item">
+4      <div class="posts-index-item">
-5　<div class="post-left">
+5        <div class="post-left">
-6　　<img src="<%= "/user_images/#{user.image_name}" %>">
+6          <img src="<%= "/post.user_images/#{post.user.image_name}" %>">
-7　  </div>
+7        </div>
-8　<div class="post-right">
+8        <div class="post-right">
-9　 <div class="post-user-name">
+9          <div class="post-user-name">
 Rails.root: /vagrant/new_app
@@ -54,9 +48,9 @@
 Application Trace | Framework Trace | Full Trace
-app/views/posts/index.html.erb:6:in `block in _app_views_posts_index_html_erb__314821907__628286838'
+app/views/posts/index.html.erb:6:in `block in _app_views_posts_index_html_erb___226630752__647422898'
-app/views/posts/index.html.erb:3:in `_app_views_posts_index_html_erb__314821907__628286838'
+app/views/posts/index.html.erb:3:in `_app_views_posts_index_html_erb___226630752__647422898'
 Request
@@ -82,11 +76,11 @@
 None
+```
-### 該当のソースコード
+### 該当のソースコード(routes.rb)
@@ -140,12 +134,240 @@
 ```
-### 該当のソースコード
+### 該当のソースコード(posts_controller.rb)
 ```Ruby
+class PostsController < ApplicationController
+   before_action :authenticate_user
+  def index
+    @posts = Post.all.order(created_at: :desc)
+  end
+  def show
+    @post = Post.find_by(id: params[:id])
+    @user = @post.user
+  end
+  def new
+  	@post = Post.new
+  end
+  def create
+    @post = Post.new(
+      content: params[:content],
+      user_id: @current_user.id
+      )
+    if @post.save
+    	flash[:notice] ="投稿を作成しました"
+      redirect_to("/posts/index")
+    else
+      render("/posts/new")
+    end
+  end
+  def edit
+    @post = Post.find_by(id: params[:id])
+  end
+  def update
+    @post = Post.find_by(id: params[:id])
+    @post.content = params[:content]
+    if @post.save
+      flash[:notice] = "投稿を編集しました"
+      redirect_to("/posts/index")
+    else
+      render("/posts/edit")
+    end
+  end
+  def destroy
+    @post = Post.find_by(id: params[:id])
+    @post.destroy
+    flash[:notice] ="投稿を削除しました"
+    redirect_to("/posts/index")
+  end
+end
+```
+### 該当のソースコード(index.html.erb)
+```HTML
+<div class="main posts-index">
+  <div class="container">
+    <% @posts.each do |post| %>
+      <div class="posts-index-item">
+        <div class="post-left">
+          <img src="<%= "/post.user_images/#{post.user.image_name}" %>">
+        </div>
+        <div class="post-right">
+          <div class="post-user-name">
+            <%= link_to(post.user.name, "/users/#{post.user.id}") %>
+          </div>
+          <%= link_to(post.content, "/posts/#{post.id}") %>
+        </div>
+      </div>
+    <% end %>
+  </div>
+</div>
+```
+### 該当のソースコード(show.html.erb)
+```HTML
+<div class="main posts-show">
+  <div class="container">
+    <div class="posts-show-item">
+      <div class="post-user-name">
+        <img src="<%= "/user_images/#{@user.image_name}" %>">
+        <%= link_to(@user.name, "/users/#{@user.id}") %>
+      </div>
+      <p>
+    	<%= @post.content %>
+      </p>
+      <div class="post-time">
+    	<%= @post.created_at %>
+      </div>
+      <div class="post-menus">
+        <%= link_to("編集", "/posts/#{@post.id}/edit") %>
+        <%= link_to("削除", "/posts/#{@post.id}/destroy",{method: "post"}) %>
+      </div>
+    </div>
+  </div>
+</div>
+```
+### 該当のソースコード(user.rb)
+```Ruby
+class User < ApplicationRecord
+  validates :name,{presence: true}
+  validates :email, {presence: true, uniqueness: true}
+  validates :password, {presence: true}
+end
+```
+### 該当のソースコード(post.rb)
+```Ruby
 class Post < ApplicationRecord
   validates :content, {presence: true, length: {maximum: 140}}
@@ -166,168 +388,8 @@
 ```
-### 該当のソースコード
-```Ruby
-class PostsController < ApplicationController
-   before_action :authenticate_user
-  def index
-    @posts = Post.all.order(created_at: :desc)
-  end
-  def show
-    @post = Post.find_by(id: params[:id])
-    @user = @post.user
-  end
-  def new
-  	@post = Post.new
-  end
-  def create
-    @post = Post.new(
-      content: params[:content],
-      user_id: @current_user.id
-      )
-    if @post.save
-    	flash[:notice] ="投稿を作成しました"
-      redirect_to("/posts/index")
-    else
-      render("/posts/new")
-    end
-  end
-  def edit
-    @post = Post.find_by(id: params[:id])
-  end
-  def update
-    @post = Post.find_by(id: params[:id])
-    @post.content = params[:content]
-    if @post.save
-      flash[:notice] = "投稿を編集しました"
-      redirect_to("/posts/index")
-    else
-      render("/posts/edit")
-    end
-  end
-  def destroy
-    @post = Post.find_by(id: params[:id])
-    @post.destroy
-    flash[:notice] ="投稿を削除しました"
-    redirect_to("/posts/index")
-  end
-end
-```
-### 該当のソースコード
-```HTML
-<div class="main posts-index">
-  <div class="container">
-    <% @posts.each do |post| %>
-      <div class="posts-index-item">
-        <div class="post-left">
-          <img src="<%= "/post.user_images/#{user.image_name}" %>">
-        </div>
-        <div class="post-right">
-          <div class="post-user-name">
-            <%= link_to(post.user.name, "/users/#{post.user.id}") %>
-          </div>
-          <%= link_to(post.content, "/posts/#{post.id}") %>
-        </div>
-      </div>
-    <% end %>
-  </div>
-</div>
-```
 ### 試したこと
+投稿の詳細画面を表示しようとしたところそれでもメソッドエラーが出たので
-解答のコピー＆ペースト
+ビュー以外にミスがあるのかと思いました。