method

count

Importance_0
v7.1.3.4 - Show latest stable - 0 notes - Class: SchemaMigration
  • 1.0.0
  • 1.1.6
  • 1.2.6
  • 2.0.3
  • 2.1.0
  • 2.2.1
  • 2.3.8
  • 3.0.0
  • 3.0.9
  • 3.1.0
  • 3.2.1
  • 3.2.8
  • 3.2.13
  • 4.0.2
  • 4.1.8
  • 4.2.1
  • 4.2.7
  • 4.2.9
  • 5.0.0.1
  • 5.1.7
  • 5.2.3
  • 6.0.0
  • 6.1.3.1
  • 6.1.7.7
  • 7.0.0
  • 7.1.3.2 (0)
  • 7.1.3.4 (0)
  • What's this?
count() public

No documentation

This method has no description. You can help the Ruby on Rails community by adding new notes.

Hide source
# File activerecord/lib/active_record/schema_migration.rb, line 78
    def count
      sm = Arel::SelectManager.new(arel_table)
      sm.project(*Arel::Nodes::Count.new([Arel.star]))

      connection.select_values(sm, "#{self.class} Count").first
    end
Register or log in to add new notes.