質問編集履歴

users_controller.rbを記述しました。

2021/12/13 00:35

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@@ -230,7 +230,57 @@
 <% end %>
 ```
+users_controller.rb
+```Rails
+class UsersController < ApplicationController
+   before_action :correct_user,   only: [:edit, :update]
+  def show
+    @book_new = Book.new
+    @user = User.find(params[:id])
+    #bookだとエラーが出た
+    @books = @user.books
+  end
+  def index
+    @user = current_user
+    @users = User.all
+    @book_new = Book.new
+  end
+  def edit
+    @user = User.find(params[:id])
+  end
+  def update
+      @user = User.find(params[:id])
+      if @user.update(user_params)
+        flash[:notice] = "You have updated user successfully."
+        redirect_to user_path(user.id)
+      else
+        render :edit
+      end
+  end
+  private
+    def user_params
+      params.require(:user).permit(:name, :introduction, :profile_image)
+    end
+    def correct_user
+      @user = User.find(params[:id])
+      if current_user != @user
+       redirect_to user_path(@user)
+      end
+    end
+end
+```
 ターミナル
 ```Rails
 Started GET "/books" for 14.133.239.112 at 2021-12-12 12:42:12 +0000