method

extract_foreign_key_action

Importance_0
v4.2.9 - Show latest stable - 0 notes - Class: AbstractMysqlAdapter
  • 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 (0)
  • 4.2.7 (0)
  • 4.2.9 (0)
  • 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
  • 7.1.3.4
  • What's this?
extract_foreign_key_action(structure, name, action) private

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/connection_adapters/abstract_mysql_adapter.rb, line 900
      def extract_foreign_key_action(structure, name, action) # :nodoc:
        if structure =~ /CONSTRAINT #{quote_column_name(name)} FOREIGN KEY .* REFERENCES .* ON #{action} (CASCADE|SET NULL|RESTRICT)/
          case $1
          when 'CASCADE'; :cascade
          when 'SET NULL'; :nullify
          end
        end
      end
Register or log in to add new notes.