Class: ActiveRecord::ConnectionAdapters::Rails81DepartureAdapter::SchemaCreation

Inherits:
MySQL::SchemaCreation
  • Object
show all
Defined in:
lib/active_record/connection_adapters/rails_8_1_departure_adapter.rb

Overview

github.com/departurerb/departure/commit/f178ca26cd3befa1c68301d3b57810f8cdcff9eb For ‘DROP FOREIGN KEY constraint_name` with pt-online-schema-change requires specifying `_constraint_name` rather than the real constraint_name due to to a limitation in MySQL pt-online-schema-change adds a leading underscore to foreign key constraint names when creating the new table. www.percona.com/blog/2017/03/21/dropping-foreign-key-constraint-using-pt-online-schema-change-2/

Instance Method Summary collapse

Instance Method Details

#visit_DropForeignKey(name) ⇒ Object

rubocop:disable Naming/MethodName



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# File 'lib/active_record/connection_adapters/rails_8_1_departure_adapter.rb', line 24

def visit_DropForeignKey(name) # rubocop:disable Naming/MethodName
  fk_name =
    if name =~ /^__(.+)/
      Regexp.last_match(1)
    else
      "_#{name}"
    end

  "DROP FOREIGN KEY #{fk_name}"
end