Trying to redirect user to newly created post using Rails-CodePudding

I have a Rails controller that should redirect me to a newly created post:

class PostsController < ApplicationController
    def index
    end

    def new
        @post = Post.new
    end

    def create
        @post = Post.new(params.require(:post).permit(:date, :rationale))
        @post.save
        redirect_to @post
    end

    def show
      @post = Post.find(params[:id])
    end
end

the view for the show method is:

<%= @post.inspect %>

The following test passes:

it 'can be created from new form' do
      visit new_post_path
      fill_in 'post[date]', with: Date.today
      fill_in 'post[rationale]', with: "Some rationale"
      click_on "Save"
      expect(page).to have_content("Some rationale")
  end

however when I run through the browser, the redirect only goes to the index /posts

Expected Behaviour: The user should be redircted to the view show and see the newly created post

If I hard code the id into the redirect I can see the newly created post

CodePudding user response：

you can find route using this, rails routes then find the routes with the posts id, either you want to use prefix/ URI pattern. in this case, seems like you're using show. then you can use redirect_to '/post/:id/show' for URI pattern, the id should be @post.id

CodePudding user response：

You have to have a fallback when post doesn't save due to validation errors. You can only redirect when post is created and has an id.

# POST /posts
def create
  @post = Post.new(post_params)

  respond_to do |format|
    if @post.save
      redirect_to post_url(@post), notice: "Post was successfully created."
    else
      render :new, status: :unprocessable_entity
    end
  end
end

private

  def post_params
    params.require(:post).permit(:date, :rationale)
  end

Use rails generators when you need simple set up like that

# just controller
bin/rails generate scaffold_controller Post

# all in one go
bin/rails generate scaffold Post rationale date:date