덕's 머니스토리

기본적인 문법 class PostsController < ApplicationControllerdef edit@post = Post.find(params[:id])if session[:user_id] != @post.user_idflash[:notice] = "Sorry, you can't edit this post"redirect_to post_pathendendend 대체가능한 문법class PostsController < ApplicationControllerdef edit@post = Post.find(params[:id])if session[:user_id] != @post.user_idredirect_to (post_path, notice: "Sorry, you can't edit this p..

기본 validates 문법 validates :name, presence: truevalidates :name, length: {mininum: 3} 대체가능 validates 문법validates :name,presence: true,length: {mininum: 3} 참고 : http://guides.rubyonrails.org/active_record_validations.html

기본 Create 문법 t = User.newt.name = "Jinny"t.phone = "01012341234"t.save 대체가능 Create 문법1t. = User.new(name: "Jinny"phone: "01012341234") t.save 대체가능 Create 문법2t = User.create(name: "Jinny", phone: "01012341234") 기본 Update 문법 t = User.find(3)t.name = "Jinny"t.phone = "01012341234"t.save 대체가능 Update 문법1t = User.find(3)t.attributes = {name: "Jinny"phone: "01012341234"} t.save 대체가능 Update 문법2t = User...