diff options
Diffstat (limited to 'activerecord/lib/active_record/migration.rb')
| -rw-r--r-- | activerecord/lib/active_record/migration.rb | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index a83b90a95f..192a456846 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -275,21 +275,6 @@ module ActiveRecord # The phrase "Updating salaries..." would then be printed, along with the # benchmark for the block when the block completes. # - # == About the schema_migrations table - # - # Rails versions 2.0 and prior used to create a table called - # <tt>schema_info</tt> when using migrations. This table contained the - # version of the schema as of the last applied migration. - # - # Starting with Rails 2.1, the <tt>schema_info</tt> table is - # (automatically) replaced by the <tt>schema_migrations</tt> table, which - # contains the version numbers of all the migrations applied. - # - # As a result, it is now possible to add migration files that are numbered - # lower than the current schema version: when migrating up, those - # never-applied "interleaved" migrations will be automatically applied, and - # when migrating down, never-applied "interleaved" migrations will be skipped. - # # == Timestamped Migrations # # By default, Rails generates migrations that look like: @@ -307,9 +292,8 @@ module ActiveRecord # # == Reversible Migrations # - # Starting with Rails 3.1, you will be able to define reversible migrations. # Reversible migrations are migrations that know how to go +down+ for you. - # You simply supply the +up+ logic, and the Migration system will figure out + # You simply supply the +up+ logic, and the Migration system figures out # how to execute the down commands for you. # # To define a reversible migration, define the +change+ method in your |