class CommandRecorder

Ruby on Rails 5.0.7.2

Since v3.1.12

Available in: v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.11.3 v5.0.7.2 v5.1.7 v5.2.8.1 v6.0.6.1 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3.2 v8.0.5.1 v8.1.3.1 edge

Compare with: (choosing a version navigates to the comparison)

ActiveRecord::Migration::CommandRecorder records commands done during a migration and knows how to reverse those commands. The CommandRecorder knows how to invert the following commands:

add_column
add_foreign_key
add_index
add_reference
add_timestamps
change_column
change_column_default (must supply a :from and :to option)
change_column_null
create_join_table
create_table
disable_extension
drop_join_table
drop_table (must supply a block)
enable_extension
remove_column (must supply a type)
remove_columns (must specify at least one column name or more)
remove_foreign_key (must supply a second table)
remove_index
remove_reference
remove_timestamps
rename_column
rename_index
rename_table

Inherits from

Object

Namespace

Modules

ActiveRecord::Migration::CommandRecorder::StraightReversions

Includes

ActiveRecord::Migration::CommandRecorder::StraightReversions

Constants

ActiveRecord::Migration::CommandRecorder::ReversibleAndIrreversibleMethods

Attributes

Methods (defined here)

# inverse_of
# record
# revert
self. new

Private methods (12)

Show private methods Implementation detail — not part of the public API.

Methods (inherited)

From Object (25)