Method: ActiveRecord::Associations::CollectionAssociation#length
- Defined in:
- activerecord/lib/active_record/associations/collection_association.rb
#length ⇒ Object
Returns the size of the collection calling size
on the target.
If the collection has been already loaded length
and size
are equivalent. If not and you are going to need the records anyway this method will take one less query. Otherwise size
is more efficient.
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# File 'activerecord/lib/active_record/associations/collection_association.rb', line 287 def length load_target.size end |