How to show pagination counter for array for pagination in views

Question

used_cars = UsedCar.paginate(:page => params[:page], :per_page => 5)
used_cars_hash = used_cars.as_json

I show all used_cars_hash in my view. But when I add <% will_paginate @user_cars_hash %> it gives an error

How to show pagination counter on array?

Because when we add <% will_paginate @user_cars_hash %>

it gives an error

undefined method total_pages' for #<Array:0x007f1edef43c48>

Possible duplicate of [Paginating an Array in Ruby with will\_paginate](https://stackoverflow.com/questions/13187076/paginating-an-array-in-ruby-with-will-paginate) — Mate Solymosi, Jul 08 '17 at 23:12
“No i need to use hash in views”—if you _need_ to use a hash in the views (which is already nonsense,) do paginate on relation in the controller and convert the already paginated result to `Hash` in the view. — Aleksei Matiushkin, Jul 09 '17 at 04:59

Mate Solymosi · Answer 1 · 2017-07-08T23:10:09.460

0

will_paginate does not work with the plain Ruby array you get by calling used_cars.as_json. Try passing used_cars to it:

# no need to turn it into a plain array
@used_cars = UsedCar.paginate(:page => params[:page], :per_page => 5)

# in the view:
<%= will_paginate @used_cars %>

If you absolutely have to use the array for pagination, you can do this:

require 'will_paginate/array'

# you can call `paginate` on plain arrays
used_cars = UsedCar.all
@used_cars_array = used_cars.as_json.paginate(:page => params[:page], :per_page => 5)

# in the view:
<%= will_paginate @used_cars_array %>

edited Jul 08 '17 at 23:10

answered Jul 08 '17 at 22:57

Mate Solymosi

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No i need to use hash in views – Haseeb Ahmad Jul 08 '17 at 23:01
Then you can assign both. Use the hash in the view, and use `@used_cars` for the pagination. – Mate Solymosi Jul 08 '17 at 23:01
let assume that I have only hash in views. Basically my scenario is diff I get data from cache which return hash not activerecord. – Haseeb Ahmad Jul 08 '17 at 23:03
I'm stabbing in the dark here. What is the exact error message? – Mate Solymosi Jul 08 '17 at 23:07
1

Try it with `require 'will_paginate/array'` – Mate Solymosi Jul 08 '17 at 23:10
undefined method `total_pages' for # – Haseeb Ahmad Jul 08 '17 at 23:11
you understand? – Haseeb Ahmad Jul 08 '17 at 23:16
Did you call `paginate` on the array in the controller? I.e. `used_cars.as_json.paginate(...)` – Mate Solymosi Jul 08 '17 at 23:17
meanz data i get in view is in as_json – Haseeb Ahmad Jul 08 '17 at 23:22

How to show pagination counter for array for pagination in views

1 Answers1