how can i use a helper in different views

Question

i am using refinery cms at the moment. I created an engine and with it some helpers in app/helpers/admin/. now i would like to use those helpers in my frontend view (ie. app/views/myapp/index) as well. but i can not...undefined methode error. what do i have to do short of copying the whole thing to app/helpers/? the helper looks like this

module Admin
    module myHelper
        def somefunc
        end
    end
end

so is it possible to use somefunc outside of the Admin module?

+1 good question. I struggled with this for a few minutes last night before bed. Nice to come in and find the exact question/answer I was looking for... — jaydel, May 20 '11 at 12:42

score 62 · Answer 1 · edited Dec 04 '12 at 12:17

62

The "Rails way" to include a helper from a non-standard path in a view is to use the .helper method within your controller.

class MyController < ApplicationController
    helper Admin::MyHelper
    ...
end

http://apidock.com/rails/AbstractController/Helpers/ClassMethods/helper

edited Dec 04 '12 at 12:17

Christoph Petschnig

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answered Aug 12 '12 at 08:47

bobics

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This should be the accepted answer, much better than globally including the helper. – Riveascore May 13 '15 at 16:59
1

Very nice. I was looking for this. – Srikanth Jeeva Jul 12 '16 at 22:42

score 28 · Accepted Answer · answered May 20 '11 at 12:15

28

In your application_helper.rb:

module ApplicationHelper
  include Admin::MyHelper
end

This will import those helper methods into the ApplicationHelper, thus making them available in your views. You could do this in any of your helpers really.

answered May 20 '11 at 12:15

d11wtq

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Thanks that works. But why does it not work when i just include it in MyHelper...like this `module MyHelper include Admin::MyHelper` why do i have to go over application_helpers when it is in the same engine? – Hans May 20 '11 at 12:24
1

Rails doesn't include any view helper modules deeper than the top-level namespace, you need to include them yourself. – d11wtq May 20 '11 at 12:28
Hmm, where is `my_helper.rb` ? – d11wtq May 20 '11 at 12:28
ahh allright i found the error in my head. thanks a lot for clearing that up...have a great day! – Hans May 20 '11 at 12:36
@d11wtq: Your second comment points at the origin of the problem, could you add it to the answer? thanks. – tokland Jul 30 '13 at 11:37
What if I want to incude just a single method from the helper? – przemek Feb 27 '16 at 09:11

score 0 · Answer 3 · answered May 20 '11 at 12:11

0

You might try to use the full object reference like Admin::myHelper::somefunc to call somefunc from outside the Admin module.

answered May 20 '11 at 12:11

arnep

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how can i use a helper in different views

3 Answers3