In this Rails app, Users write Stories. A Story may be part of a Collection. Collections belong to the User who created it.
I am trying to show a single Story with links to the Collections it is part of. The collection.name part works but I can't get the collection_path right. Thanks for your help.
stories/show.html.erb
<% #story.collections.each do |collection| %>
<%= link_to collection.name, collection_path %>
<% end %>
rake routes for collections
user_collections GET /users/:user_id/collections(.:format) collections#index
POST /users/:user_id/collections(.:format) collections#create
new_user_collection GET /users/:user_id/collections/new(.:format) collections#new
edit_user_collection GET /users/:user_id/collections/:id/edit(.:format) collections#edit
user_collection GET /users/:user_id/collections/:id(.:format) collections#show
routes.rb
resources :users do
resources :collections
Solved it by using the following with the help of Sebastián Palma who answered this earlier.
<% #story.collections.each do |collection| %>
<%= link_to collection.name, user_collection_path(collection.user, collection), class: 'btn btn-lake' %>
<% end %>
Related
I want a link to update a resource, without using an HTML form.
I have a Kanban board listing projects grouped by their status. Via the click of a button I want to update the status of a project moving them to the next list. This should happen on the workflows index: /tenants/{id}/workflows
Problem
The button_to or link_to seems to be feasible avoiding a form, but I don't know which route and params to use in the index.html.erb. Any advice would be much appreciated.
Routes
resources :tenants do
resources :members
resources :projects
resources :workflows
end
Workflows/index.html.erb
<%- model_class = Project -%>
<% #projects.where(tenant_id: #tenant.id, :status => "Nominated").each do |project| %>
<%= project.title %>
<%= button_to "Update", XXXX, method: :put, params: { status: "In Progress" } %>
<% end %>
<% end %>
I'm building a Rails app that is a podcast directory. I have Podcasts and Episodes. Episode belongs to Podcast and Podcast has many Episodes. On the home page I want to show the last 5 episodes that have been created and link to them.
I have it working with this, though this is obviously not the way to do it:
<% #episodes.each do |episode| %>
<%# link_to episode do %>
<%= episode.title %>
<%# end %>
<% end %>
The link_to is commented out because that's part of my problem.
Here is the index controller:
def index
#podcasts = Podcast.where.not(thumbnail_file_name: nil).reverse.last(5)
#episodes = Episode.where.not(episode_thumbnail_file_name: nil).reverse.last(5)
end
Here is the routes file:
Rails.application.routes.draw do
devise_for :podcasts
resources :podcasts, only: [:index, :show] do
resources :episodes
end
authenticated :podcast do
root 'podcasts#dashboard', as: "authenticated_root"
end
root 'welcome#index'
end
Results of rake routes | grep episode:
podcast_episodes GET /podcasts/:podcast_id/episodes(.:format) episodes#index
POST /podcasts/:podcast_id/episodes(.:format) episodes#create
new_podcast_episode GET /podcasts/:podcast_id/episodes/new(.:format) episodes#new
edit_podcast_episode GET /podcasts/:podcast_id/episodes/:id/edit(.:format) episodes#edit
podcast_episode GET /podcasts/:podcast_id/episodes/:id(.:format) episodes#show
PATCH /podcasts/:podcast_id/episodes/:id(.:format) episodes#update
PUT /podcasts/:podcast_id/episodes/:id(.:format) episodes#update
DELETE /podcasts/:podcast_id/episodes/:id(.:format) episodes#destroy
How can I correctly create a text link of the title using a link_to that links directly to the episode? Thanks!
When you're using link_to with a block, the only thing you need to pass into the block is the text of the link, so you should be able to do this (assuming your routes are setup properly):
<% #episodes.each do |episode| %>
<%= link_to episode, class="tt-case-title c-h5" do %>
<%= episode.title %>
<% end %>
<% end %>
UPDATE
You really don't even need to use a block here. This should work fine for you and be a little more succinct.
<% #episodes.each do |episode| %>
<%= link_to episode.title, episode, class="tt-case-title c-h5" %>
<% end %>
UPDATE #2
Thanks for including your route info. Try this:
<% #episodes.each do |episode| %>
<%= link_to episode.title, podcast_episode_path(episode.podcast, episode), class="tt-case-title c-h5" %>
<% end %>
If I visit this page /articles/1/comments
Why won't this work (views/comments/index.html.erb)
<% #comments.each do |comment| %>
<%= link_to "show", article_comment_path(comment)
<% end %>
and this will?
<% #comments.each do |comment| %>
<%= link_to "show", article_comment_path(#article, comment)
<% end %>
routes.rb
resources :articles
resources :comments
end
I would think the route helper would be smart enough to infer I want to use the article in the current context...
Magic is pretty nice except when you spend a lot of time expecting it to be magical and it's not :P
You cannot expect too much. This way you still have the freedom to use an instance variable, a plain parameter. The link_to helper can also be used outside the context of the controller. Furthermore, the list of possible parameters is dynamic. If you give one parameter, it has no way of knowing which you did specify: the article? The comment?
Note that you can just write:
link_to "show article", #article
link_to "show comment", [#article, comment]
Hope this helps.
I'm trying to get an admin interface working in Rails, but I'm having trouble using link_to with the nested routes. I'm trying to get a link to /admin/cake_class/:id but it's sending me to admin/cake_class.:id instead.
config/routes.rb:
namespace :admin do
resources :cake_class
end
/app/views/admin/cake_class/index.html.erb
<h1>all classes</h1>
<% #classes.each do |c| %>
<%= c.date %>
<%= c.name %>
<%= link_to 'Show', admin_cake_class_path(c) %>
<% end %>
Any suggestions?
The :resources should be plural, :cake_classes, which could be tripping you up.
What does the output of rake routes show?
I have the following rails 3 nested models:
resources :books do
resources :authors
end
I now have a view here: /books/131/authors/
And I want to each record to link to something like: /books/131/authors/3333
<% #authors.each do |author| %>
<%= link_to 'author.name', book_author_path(#book, #author) %>
<% end %>
but that error's with: No route matches {:action=>"destroy", :controller=>"authors"}
I also tried:
<%= link_to 'author.name', [#book, author] %>
Problem is the code keeps linking to /authors/3333, not /books/131/authors/3333
Ideas? thanks!
book needs to be defined in the author controller for def index
<%= link_to "title", book_author_path(#book, author) %>