* EXreaction/feature/migrations: (48 commits)
[feature/migrations] Remove default values from necessary parameters
[feature/migrations] Revert unrelated changes to functions.php
[ticket/9737] Fix some comments
[ticket/9737] Fix a few minor things in migrations
[feature/migrations] Make sure migration data not done before running data step
[feature/migrations] Function to populate the migrations table (for install)
[feature/migrations] Function effectively_installed() in migrations
[feature/migrations] Make load_migrations recursive (optionally)
[feature/migrations] Make the test depends_on methods static
[feature/migrations] Make depends_on static to call it without dependencies
[feature/migrations] install/database_update_migrations.php
[feature/migrations] Move test.php -> install/database_update_migrations.php
[feature/migrations] Store depends on in the database (serialized)
[feature/migrations] Revert method completed
[feature/migrations] Basic reverting test
[feature/migrations] Test for calling a step multiple times
[feature/migrations] Creating revert method to attempt reverting a migration
[feature/migrations] Some comments in db_tools
[feature/migrations] Reverse data functionality
[feature/migrations] Comment
...
Conflicts:
phpBB/install/schemas/firebird_schema.sql
phpBB/install/schemas/mssql_schema.sql
phpBB/install/schemas/mysql_40_schema.sql
phpBB/install/schemas/mysql_41_schema.sql
phpBB/install/schemas/oracle_schema.sql
phpBB/install/schemas/postgres_schema.sql
phpBB/install/schemas/sqlite_schema.sql
Allows you to check if the migration is effectively installed
(entirely optionall)
This function is intended to help moving to migrations from a
previous database updater, where some migrations may have been
installed already even though they are not yet listed in the
migrations table.
PHPBB3-9737
This is required so that when migrations are reverted we can check through
all installed migrations and make sure that all dependencies are handled
properly and so that we are only required to load the migrations files
that could be dependent on the ones installed.
I believe in normal proper use the old way might have worked, but in case
something happens and an unrelated migration file is installed, but cannot
be loaded, this makes sure we do not stop everything unless we absolutely
must (one of those files is dependent on something we want to revert).
PHPBB3-9737
