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## View Helpers
View Helpers live in `app/helpers` and provide small snippets of reusable code for views. In our case, we want a method that strings a bunch of objects together using their name attribute and joining them with a comma. As this is for the Post show template, we put it in the `PostsHelper`.
Open up `app/helpers/posts_helper.rb` and add the following:
@@@ ruby
module PostsHelper
def join_tags(post)
post.tags.map { |t| t.name }.join(", ")
end
end
@@@
Now you can edit the view in `app/views/posts/show.html.erb` to look like this:
@@@ html
<p class="notice"><%= notice %></p>
<p>
<b>Name:</b>
<%= @post.name %>
</p>
<p>
<b>Title:</b>
<%= @post.title %>
</p>
<p>
<b>Content:</b>
<%= @post.content %>
</p>
<p>
<b>Tags:</b>
<%= join_tags(@post) %>
</p>
<h2>Comments</h2>
<%= render :partial => "comments/comment",
:collection => @post.comments %>
<h2>Add a comment:</h2>
<%= render "comments/form" %>
<%= link_to 'Edit Post', edit_post_path(@post) %> |
<%= link_to 'Back to Posts', posts_path %> |
@@@
Version data entries
11 entries across 11 versions & 1 rubygems