CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3
MKK
MKK

Reputation: 2753

Why does this return no method error when trying ordering?

I'm using the gem called acts_as_follower(https://github.com/tcocca/acts_as_follower)

Here, I'm trying to fetch all the users who are following current_user.

then I want them ordered by the column called last_active_at

So I tried to code like this but it returned error. How can I fix?

controller

@followed_users = current_user.followers.order('users.last_active_at DESC').limit(10)

Error Message

NoMethodError (undefined method `order' for #<Array:0x0000000ab3cf18>):

Upvotes: 1

Views: 148

Answers (4)

Rajarshi Das
Rajarshi Das

Reputation: 12330

so you can try this

ASC:
current_user.followers.sort!{ |a,b| a.created_at <=> b.created_at }.take(10)
DESC:
current_user.followers.sort!{ |a,b| b.created_at <=> a.created_at }.take(10)

Upvotes: 1

shayonj
shayonj

Reputation: 910

Arrays dont have any order method. You could do something like this

@followed_users = current_user.followers.sort_by{ |n| n.last_active_at }

Then when displaying in the view you can limit it to how many ever you want or do it from the controller (suggested way).

Upvotes: 1

Rajarshi Das
Rajarshi Das

Reputation: 12330

followers method return Array and Array do not have any order method in ruby

Please look From github:--

"book.followers # Returns an array of all the followers for that book, a collection of different object types (eg. type User or type Book)"

Upvotes: 2

Manoj Monga
Manoj Monga

Reputation: 3083

According to the readme@github followers takes an optional hash parameter of ActiveRecord options (:limit, :order, etc…)

So this should work:

@followed_users = current_user.followers(:order => 'users.last_active_at DESC', :limit => 10)

Upvotes: 0

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