我有文章表
class CreateArticles < ActiveRecord::Migration[5.1]
def change
create_table :articles do |t|
t.string :title
t.text :body
t.timestamps
end
end
端
跟随friendly_id自述文件
1)。 rails generate friendly_id
2。)将延伸添加到Article
模型
class Article < ApplicationRecord
extend FriendlyId
friendly_id :title, use: :slugged'
end
3)。添加slug field to article table
class AddSlugToArticle < ActiveRecord::Migration[5.1]
def change
add_column :articles, :slug, :string
add_index :articles, :slug, unique: true
end
end
打开网络浏览器http://localhost:3000/article/new
可以看到rails terminal
def show
@article = Article.friendly.find(params[:id])
@comments = @article.comments.order("created_at desc").paginate(:page => params[:page], per_page: 4)
respond_to do |format|
format.html
format.json { render json: [@article, @comments], except: [:created_at, :updated_at] }
end
end
此终端错误报告:
答案 0 :(得分:0)
你们发现了这个错误,因为没有在强参数上添加参数
def article_params
params.require(:article).permit(:title, :body, :catalog_id, :slug)
end