paginate last 20 models, ruby on rails (will_paginate gem)

Question

I'm trying to do pagination using the will_paginate gem:

@books = Book.joins(:ads).last(20).page(params[:page]).per_page(10)

But I'm getting this error: undefined method `page' for #<\Array:0x007fc3ef37d308> and I can't seem to figure out what's wrong. Pagination works like a charm in other actions.

Thanks! :)

Similar to http://stackoverflow.com/questions/13187076/paginating-an-array-in-ruby-with-will-paginate — rlecaro2, Jan 29 '14 at 19:28

score 0 · Accepted Answer · answered Jan 29 '14 at 19:41

0

Don't use last as that will trigger the query execution. Use reverse_order and limit instead.

Book.joins(:ads).reverse_order.limit(20).page(params[:page]).per_page(10)

answered Jan 29 '14 at 19:41

PinnyM

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score 0 · Answer 2 · answered Jan 30 '14 at 06:36

If you still want to paginate array:

require 'will_paginate/array'

and then use

Array#paginate

https://github.com/mislav/will_paginate/wiki/Backwards-incompatibility (the very bottom of the page)

sources:

https://github.com/mislav/will_paginate/blob/2-3-stable/lib/will_paginate/array.rb https://github.com/mislav/will_paginate/blob/master/lib/will_paginate/array.rb

paginate last 20 models, ruby on rails (will_paginate gem)

2 Answers2