No route matches [PATCH] “/posts/my-second-post”

Question

I am getting the following error an UPDATE to an existing post on the Blog app (Rails):

I changed author_posts_path to author_post_path when I was getting an error

No route matches [PATCH] "/posts/my-second-post"

Now, I'm getting a new error as follows:

ActionController::UrlGenerationError in Blog::Posts#index

Showing C:/Users/Royal and Carla/Desktop/testBlog3c/app/views/layouts/_navbar.html.erb where line #18 raised:

No route matches {:action=>"show", :controller=>"author/post"}, missing required keys: [:id]

views/layouts/_navbar.html.erb

16     </li> 
17        <li class="nav-item">
18        <%= link_to 'My posts', author_post_path, class: "nav-link #
          {yield(:author)}" %>
19     </li>   
20    </ul>
21  </div>

ontrollers/author/posts_controller.rb

private
      def set_post
        @post = Post.friendly.find(params[:id])
      end      
    
      def post_params
        params.require(:post).permit(:title, :body, :description, :banner_image_url)
      end

Answer 1

you want to update post,first you need a edit view and in this view request update action. so I think you first step change link path to edit_author_post(@post)

Answer 2

It seems to to be you not passing the post object id if your routes.rb file looks like this

namespace :author do 
  resources :posts
end

then run the rake routes then you will get output looks like this

    author_posts GET    /author/posts(.:format)          author/posts#index
                 POST   /author/posts(.:format)          author/posts#create
 new_author_post GET    /author/posts/new(.:format)      author/posts#new
edit_author_post GET    /author/posts/:id/edit(.:format) author/posts#edit
     author_post GET    /author/posts/:id(.:format)      author/posts#show
                 PATCH  /author/posts/:id(.:format)      author/posts#update
                 PUT    /author/posts/:id(.:format)      author/posts#update
                 DELETE /author/posts/:id(.:format)      author/posts#destroy

See this

edit_author_post GET    /author/posts/:id/edit(.:format) author/posts#edit
     author_post GET    /author/posts/:id(.:format)      author/posts#show
                 PATCH  /author/posts/:id(.:format)      author/posts#update
                 PUT    /author/posts/:id(.:format)      author/posts#update

you need to :id for edit, update & show if need edit then your edit link looks like this

edit_author_post_path(post_object_id) # object_id is a post.id

then update form_tag will looks like this

form_for [:author, @post] do |f|...

It should work, hope it will helps.