How to link title of resource? - ruby-on-rails

Question

This is what Things look like on my site.
I want "Cole Haan Air Madison" to actually link to the Cool Haan website where users can purchase that item.
This is the code for the form used to create Things:
<%= simple_form_for(#thing, html: { multipart: true }) do |f| %>
<% if #thing.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#thing.errors.count, "error") %> prohibited this thing from being saved:</h2>
<ul>
<% #thing.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="form-group">
<%= f.label :title %><br>
<%= f.text_field :title, class: 'form-control' %>
</div>
<div class="form-group">
<%= f.label :description %><br>
<%= f.text_field :description, class: 'form-control' %>
</div>
<div class="form-group">
<%= f.label :image %><br>
<%= f.file_field :image, class: 'form-control' %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
The form visually looks like this:
I know I have to add a link field to the form. But how do I, instead of displaying the link to the user, have it correspond to the title of the Thing?
Here is the show view for Things:
<div class='row'>
<div class='col-md-offset-2 col-md-8'>
<div class='panel panel-default'>
<div class='panel-heading text-center'>
<%= image_tag #thing.image.url(:medium) %>
</div>
<div class='panel-body'>
<p>
<strong><%= #thing.title %></strong>
</p>
<p>
<%= #thing.description %>
</p>
<p>
<%= link_to #thing.user.username, #thing.user %>
</p>
<% if #thing.user == current_user %>
<%= link_to edit_thing_path(#thing) do %>
<span class='glyphicon glyphicon-edit'></span>
<% end %>
<% end %>
</div>
</div>
</div>

Answer 1

Basically, you need link_to tag.
Since, you mentioned:
I want "Cole Haan Air Madison" to actually link to the Cool Haan
website where users can purchase that item.
So, I consider that you are storing website of the user's thing.
Replace,
<strong><%= #thing.title %></strong>
in your code with:
<strong><%= link_to #thing.title, #thing.user.website %></strong>
Here, #thing.user denotes the associated user of that thing, and #thing.user.website gives back the website of that user.