Rails 4 Relation#all deprecation

Question

In my app I created a recent posts feature.

 @recentposts = Post.all(:order => \'created_at DESC\', :limit => 5)

This variable makes

Answer 1

Just write:

@recentposts = Post.order('created_at DESC').limit(5)

The to_a is not explicitly necessary, as the data is lazy loaded when needed.

Answer 2

A call to Post.all will return an ActiveRecord::Relation, which will be loaded lazily by default. Calling Post.all.load will return an eagerly-loaded ActiveRecord::Relation. Finally, calling Post.all.to_a will return all records in an array.

In your case you would do:

Post.order('created_at DESC').limit(5).to_a

which would return an array of the first 5 Posts, sorted by created_at in descending order.

Answer 3

Nested way

Post.order('created_at DESC').limit(5).to_a