CODEWITHSUNDEEP
ruby-on-railsscope
greyoxide
greyoxide

Reputation: 1287

rails skip records that are addressed by named scope

I have a scope which uses a where clause to narrow the results down to records where a specific parameter is defined.

In Post.rb

scope :nav, where( "priority IS NOT NULL" )

Im using this scope to populate the site navigation with specific Posts. However, the index controller action needs to omit these records. Is there a way I can use the same named scope to omit these records from my index action? Or do I need to write a second scope which is the inverse of the first?

def index
  @posts = Post.order('created_at DESC')
end

Upvotes: 0

Views: 67

Answers (1)

Sefier Tang
Sefier Tang

Reputation: 790

In Post.rb

scope :nav, ->(not_null = true) { not_null ? where.not(priority: nil) : where(priority: nil) }

In controller:

def index
  @posts = Post.order(created: :desc).nav(false)
end

Work in Rails 4.

Upvotes: 1

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