CODEWITHSUNDEEP
ruby-on-rails
user1776855
user1776855

Reputation: 11

Making a link in Ruby on Rails

I'm really really newbie in Ruby on Rails... I'm trying to make a link to another page in my project, where it's listed the posts that belong to an escuela.

This is what I did:

In posts_controller.rb I wrote:

def postesc
    @posts = Post.where(:escuela_id => params[:id])
    respond_to do |format|
      format.html # postesc.html.erb
      format.json { render json: @posts }
    end
  end

In config/routes.rb I wrote:

match 'postesc' => 'posts#postesc'

In view/escuelas/listaesc.html.erb I wrote the link:

<%= link_to "Escuelas", :controller => "posts", :action => "postesc" %>

And in view/escuelas/postesc.html.erb I want to make a list of the matching posts. But this page appears just blank, with only the layout.

Please, some help?

Upvotes: 1

Views: 81

Answers (3)

Sandip Karanjekar
Sandip Karanjekar

Reputation: 850

First make the association between post and escuela, then you can find it just by 

Escuela.find(params[:id]).posts

Change your routes to -

resources :posts do
  get 'postesc', :on => :collection
end

View : 

<%= link_to "List posts", postesc_posts_path %>

Upvotes: 2

ernd enson
ernd enson

Reputation: 1772

you're missing to add an ID for the Escuela to be selected - as you're doing in your Controller#postesc Action (as in words: where: escuela_id => params[:id]).

<%= link_to "Escuela", :controller => "posts", :action => "postesc", :id => 1 %>

but you could use the object-link method using the following syntax (by changing your routes a litte):

# in routes.rb
match 'postesc' => 'posts#postesc', on: :collection, as: 'esc_index'

# in your view
<%- for escuela in @escuelas do %>
  <%= link_to "Escuela", esc_index(escueal) %>
<% end %>

Upvotes: 0

Aditya Kapoor
Aditya Kapoor

Reputation: 1570

make a change in routes.rb as

get 'postesc' => 'posts#postesc'

try...<%= link_to "Escuelas", postesc_path %>

OR

 <%= link_to "Escuelas", { :controller => "posts", :action => "postesc" } %>

Upvotes: 0

Related Questions