<分区>
我在创作新书时遇到了问题。 用户已登录，但仍然显示:
1 个错误禁止保存这本书
- 用户必须存在
当我编辑我的书时它工作正常但是当我尝试创建新书时它显示.error/
这是图书 Controller :
class BooksController < ApplicationController
before_action :find_book, only:[:show, :edit, :update, :destroy, :upvote]
before_action :authenticate_user!
def index
@books = Book.all.order('created_at DESC')
end
def show
end
def edit
end
def update
if @book.update(book_params)
redirect_to @book
else
render 'edit'
end
end
def destroy
@book.destroy
redirect_to root_path, notice: "successfully deleted"
end
def new
@book =Book.new
end
def create
@book =Book.new(book_params)
if @book.save
redirect_to @book
else
render 'new'
end
end
private
def find_book
@book=Book.find(params[:id])
end
def book_params
params.require(:book).permit(:title, :description, :image)
end
end
我的 books.rb 是:
class Book < ApplicationRecord
#Paperclip.options[:command_path] = 'C:\Program Files\ImageMagick-7.0.5-Q16'
has_attached_file :image, styles: { }
do_not_validate_attachment_file_type :image
#validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/
belongs_to :user
end