Create a list of clickable links in a Helper module

Question

A user has a set of saved links.

Each link has the properties address and text. These can be accessed like so:

@user.links.first.address
@user.links.first.text

How would I generate a list of a tags for all links that a user has saved in a helper method, that I can call from a view?

score 2 · Accepted Answer · answered Dec 26 '13 at 07:43

2

you can try with

def create_links
 html=""
 @user.links.each do |link|
  html += link_to "Link for #{link.address}", "#"
  html += link_to "Link for #{link.text}", "#"
 end
  html.html_safe
end

answered Dec 26 '13 at 07:43

Nitin Jain

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score 1 · Answer 2 · answered Dec 26 '13 at 14:56

1

Why don't you just do a .each on the @user.links?

You could do this:

<% @user.links.each do |link| %>
    <%= link_to link.text, link.address %>
<% end %>

This would negate the requirement of loading a helper

answered Dec 26 '13 at 14:56

Richard Peck

76,116
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It's true that this would normally be the "easiest" way to go. In my case I have conditionals involved in the loop which would clutter the view a bit too much, hence why I'd like to use a helper. – Fellow Stranger Dec 27 '13 at 01:36

score 1 · Answer 3 · answered Dec 26 '13 at 15:16

1

You use this code

 def directory(links)
    links.inject([]) {|_, e| _ << link_to e.name, e.address; _ }.join.html_safe
 end

answered Dec 26 '13 at 15:16

Igor Kasyanchuk

766
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score 0 · Answer 4 · answered Dec 26 '13 at 08:13

Perhaps I expressed myself not clearly enough, because both answers uses link.address and link.text in a way I don't quite understand. But it gave me enough info to solve it myself. This is how I did it:

def link_generator(user_links)
  html = ""
  user_links.each do |link|
    html += link_to link.name, link.address
  end
  html.html_safe
end

Create a list of clickable links in a Helper module

4 Answers4