Path from string with parameter

Question

I need a good way to create a set of Rails 3 paths from an array, in the link_to helper.

I have:

TITLES = ['foo', 'bar', 'baz']
TITLES.each do |t|
  = link_to t, (.....path....)

This way i need to construct a set of paths:

foo_super_users_path(user)
bar_super_users_path(user)
baz_super_users_path(user)

As you can see, i need to add same prefix _super_users for every single path, and pass user object. As the final result, i need something like:

link_to t, foo_super_users_path(user)
link_to t, bar_super_users_path(user)
link_to t, baz_super_users_path(user)

Your suggestions are really appreciated.

This maybe similar to what you are looking for: http://stackoverflow.com/questions/2792946/how-do-i-dynamically-change-the-path-to — Chong Yu, Apr 16 '13 at 17:43

Michal Macejko · Answer 1 · 2016-03-11T18:14:35.570

9

Instead eval use public_send

TITLES.each do |t|
  = link_to t, public_send("#{t}_super_users_path", user)

edited Mar 11 '16 at 18:14

answered Jan 16 '15 at 14:29

Michal Macejko

370
4
8

public_send("#{t}_super_users_path",user) – nazar kuliyev Jun 30 '15 at 07:53

score 7 · Accepted Answer · answered Apr 16 '13 at 17:40

7

How about

TITLES.each do |t|
  = link_to t, eval("#{t}_super_users_path(user)")

answered Apr 16 '13 at 17:40

i wouldn't recommend using `eval` ever, just google it. lots of bad results can happen – netwire Jun 03 '22 at 10:17

Path from string with parameter

2 Answers2