Link to current post from an array of records - ruby-on-rails

Question

Just trying to get my head around the following, probably basic I know. I am looping through an array of records using .each and would like to view the post i click via an ajax request on the same page
<h2>Recent News</h2>
<ul>
<% #tynewyddpost.reverse.each do |t| %>
<li>
<% single = t.photos.first %>
<a class="photo" href="#"><%= image_tag(single.avatar.url(:thumbnail_news_images)) %></a>
<p><%= link_to t.title, tynewyddnews_path(:type => 'tynewyddnews'), :remote => true %></p>
<p class="date"><%= date_output(t.published_on) %></p>
</li>
<% end %>
</ul>
So when i click the title it will render the same post no matter which record i click.
The partial i render
<div class="post-item">
<% #tynewyddpost.reverse.each do |t| %>
<h2><%= t.title %></h2>
<div id="work-samples">
<% for photo in t.photos %>
<%= image_tag(photo.avatar.url(:news_images), :class => 'work-sample') %>
<% end %>
</div>
<p class="post-description"><%= t.comments.html_safe %></p>
<div class="post-item-panel">
<ul>
<li class="date">
<p><%= date_output(t.published_on) %></p>
</li>
</ul>
</div>
</div>
<% end %>
Controller
def tynewyddnews
#title = 'Ty Newydd News'
tynewyddpost = Post.tynewydd_posts.reverse
tynewyddpost.pop
#tynewyddpost = tynewyddpost
#tynewyddpostlatest = Post.tynewydd_posts.first
end
Scope
scope :tynewydd_posts, :include => :department, :conditions => {"departments.name" => "Ty Newydd"}, :order => "posts.published_on DESC"
My question is how to get the particular post i have clicked. I cant do
<%= #tynewyydpost.title %>
As i get undefined method title for array. Bit of theory here i know but how to get an individual record from an array in this instance
Any help appreciated

Answer 1

You need to pass the id of the post you're clicked on:
<p><%= link_to t.title, tynewyddnews_path(:type => 'tynewyddnews', :post_id => t.id), :remote => true %></p>
so in your controller you can do
#theposticlickedon = Post.find(params[:post_id])
or
#theposticlickedon = Post.tynewydd_posts.find(params[:post_id])
However, you also may want to define a different path to show the individual post, instead of the tynewyddnews_path you have in your link.

Answer 2

You need to specify in every link ID of this post.
For example:
<%= link_to t.title, tynewyddnews_path(:type => 'tynewyddnews'), :post_id=>t.id, :remote => true %>
And than specify that in controller action you're calling , by finding this by id
#tynewyddnews=Post.find(params[:post_id])
Than you're partial instance #tynewyddnews will be clicked post