Comments on: How to use will_paginate with non-ActiveRecord collection/array

By: Greg

Greg — Wed, 13 Apr 2011 19:48:28 +0000

Great post. I should have looked at the comments sooner, as I spent a bit of time before realizing that the paginate method, when called from an array, needs the params specified in a hash.

By: Matt C.

Matt C. — Thu, 28 Oct 2010 19:58:33 +0000

Thanks for this! Honestly didn’t know that will_paginate added a ‘paginate’ method to Array. Cheers.

By: Phyo Wai Win

Phyo Wai Win — Wed, 18 Aug 2010 07:44:14 +0000

Thanks. Very helpful to me.

By: Qza

Qza — Sun, 25 Apr 2010 07:43:33 +0000

u r The man. Thank you so much!

By: Dida

Dida — Fri, 16 Apr 2010 09:56:30 +0000

Nice post! I would like to run the search query to multiple models. What I understand from this post, for each model I should create a method that do the research and return it as an array. And then collect the two arrays from the models and then paginate. This means the sql query is executed for every pagination. What if the query result is huge? What is the best way to do this?

Thanks!

By: Javix

Javix — Mon, 30 Nov 2009 09:32:04 +0000

I can’t figure out how to use the pagination with an existing array of objects got from has_many associations. So, I have Enterprise model and Service model. Enterprise has_many :services. I’d like to show services for every enterprise; In my ServicesController in index action I do:
before_filter : find_client
def index
@services = @client.services
end

private
def find_client
@client = Client.find(:client_id)
end
How is it possible? If try to use like that:
@services = @client.services.paginate :page => params[:page], rder => ‘created_at’, :per_page => 20

I get:

NoMethodError in Enterprises#show

Showing app/views/enterprises/show.html.erb where line #21 raised:

undefined method `total_pages’ for #

Extracted source (around line #21):

18: “/services/service”,
19: :collection => @enterprise.services, :locals=> {:client => @enterprise} %>
20:
21:
22:
23:
24: |

By: amit

amit — Thu, 09 Apr 2009 23:32:01 +0000

Thanks works like a charm. I used the way you describe here

By: s!ck

s!ck — Thu, 12 Feb 2009 00:41:56 +0000

hey guys, nice post. i using rails to build a client which only consumes restful webservice with activeresource, so i deactivated activerecord. i’m getting an array of activeresource object limited by :page and :per_page an so on. if i try to call will_paginate @results in the view it gives me an NoMethodError. In the controller i’m using that WillPaginate::Collection.create(…) and it doesn’t complain. but if i activate activerecord everything works. how can i say will_paginate not to be dependent on activerecord do i really have to patch it myself?

By: shawn

shawn — Thu, 27 Nov 2008 01:16:21 +0000

Found it:

http://mislav.uniqpath.com/static/will_paginate/doc/

2.2.0, released 2008-04-07 API changes

Remove old, deprecated style of calling Array#paginate as “paginate(page, per_page)”.

If you want to specify :page, :per_page or :total_entries, use a parameter hash.

By: shawn

shawn — Thu, 27 Nov 2008 01:14:00 +0000

Am I the only one getting the exception: Wrong number of arguments (2 for 1) trying this:

@page_results = @posts.paginate(params[:current_page], params[:per_page])

Thanks!