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Changes to migration.

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This commit is contained in:
Jonathan.Wage 2007-09-20 20:24:38 +00:00
parent be5eb98ebf
commit d4e3567ab9
6 changed files with 147 additions and 142 deletions
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154
lib/Doctrine/Migration.php
View File

@ -43,7 +43,72 @@ class Doctrine_Migration
'added_indexes' => array(),
'removed_indexes' => array());
static public function setCurrentVersion($number)
public $migrationTableName = 'migration_version';
public $migrationClassesDirectory = array();
public $migrationClasses = array();
public function __construct($directory = null)
{
if ($directory != null) {
$this->migrationClassesDirectory = $directory;
$this->loadMigrationClasses();
}
}
protected function loadMigrationClasses()
{
$directory = $this->migrationClassesDirectory;
$classes = get_declared_classes();
if ($directory !== null) {
foreach ((array) $directory as $dir) {
$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir),
RecursiveIteratorIterator::LEAVES_ONLY);
foreach ($it as $file) {
$e = explode('.', $file->getFileName());
if (end($e) === 'php' && strpos($file->getFileName(), '.inc') === false) {
require_once $file->getPathName();
$requiredClass = array_diff(get_declared_classes(), $classes);
$requiredClass = end($requiredClass);
$loadedClasses[$requiredClass] = $file->getFileName();
}
}
}
}
$classes = $loadedClasses;
$parent = new ReflectionClass('Doctrine_Migration');
$loadedClasses = array();
foreach ($classes as $name => $fileName) {
$class = new ReflectionClass($name);
while ($class->isSubclassOf($parent)) {
$class = $class->getParentClass();
if ($class === false) {
break;
}
}
if ($class === false) {
continue;
}
$loadedClasses[$name] = $fileName;
}
$this->migrationClasses = $loadedClasses;
return $loadedClasses;
}
public function setCurrentVersion($number)
{
$conn = Doctrine_Manager::connection();
@ -62,7 +127,7 @@ class Doctrine_Migration
}
}
static public function getCurrentVersion()
public function getCurrentVersion()
{
$conn = Doctrine_Manager::connection();
@ -71,93 +136,50 @@ class Doctrine_Migration
return isset($result[0]) ? $result[0]:false;
}
static public function migration($from, $to)
public function migrate($from, $to)
{
if ($from === $to || $from === 0) {
throw new Doctrine_Migration_Exception('You specified an invalid migration path. The from and to cannot be the same and from cannot be zero.');
if ($from === $to) {
throw new Doctrine_Migration_Exception('You specified an invalid migration path. The from and to cannot be the same.');
}
$direction = $from > $to ? 'down':'up';
if ($direction === 'up') {
for ($i = $from + 1; $i <= $to; $i++) {
self::doDirectionStep($direction, $i);
$this->doMigrateStep($direction, $i);
}
} else {
for ($i = $from; $i > $to; $i--) {
self::doDirectionStep($direction, $i);
$this->doMigrateStep($direction, $i);
}
}
self::setCurrentVersion($to);
$this->setCurrentVersion($to);
}
public static function doDirectionStep($direction, $num)
protected function getMigrationClass($num)
{
$className = 'Migration' . $num;
$classes = $this->migrationClasses;
if (class_exists($className)) {
$migrate = new $className();
$migrate->migrate($direction);
} else {
throw new Doctrine_Migration_Exception('Could not find migration class: ' . $className);
foreach ($classes as $className => $fileName) {
$e = explode('_', $fileName);
$classMigrationNum = (int) $e[0];
if ($classMigrationNum === $num) {
return new $className();
}
}
throw new Doctrine_Migration_Exception('Could not find migration class for migration step: '.$num);
}
public static function loadMigrationClasses($directory)
public function doMigrateStep($direction, $num)
{
$classes = get_declared_classes();
if ($directory !== null) {
foreach ((array) $directory as $dir) {
$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir),
RecursiveIteratorIterator::LEAVES_ONLY);
foreach ($it as $file) {
$e = explode('.', $file->getFileName());
if (end($e) === 'php' && strpos($file->getFileName(), '.inc') === false) {
require_once $file->getPathName();
}
}
}
$classes = array_diff(get_declared_classes(), $classes);
}
return self::getLoadedMigrationClasses($classes);
$migrate = $this->getMigrationClass($num);
$migrate->doMigrate($direction);
}
public static function getLoadedMigrationClasses($classes = null)
{
if ($classes === null) {
$classes = get_declared_classes();
}
$parent = new ReflectionClass('Doctrine_Migration');
$loadedClasses = array();
foreach ($classes as $name) {
$class = new ReflectionClass($name);
while ($class->isSubclassOf($parent)) {
$class = $class->getParentClass();
if ($class === false) {
break;
}
}
if ($class === false) {
continue;
}
$loadedClasses[] = $name;
}
return $loadedClasses;
}
public function migrate($direction)
public function doMigrate($direction)
{
if (method_exists($this, $direction)) {
$this->$direction();

39
manual/new/docs/en/migration.txt
View File

@ -2,18 +2,11 @@ The Doctrine Migration tools allow you to migrate databases and it issues alter
++ Writing Migration Classes
Migration classes consist of a simple class that extends from Doctrine_Migration. You can define a public up() and down() method that is meant for doing and undoing changes to a database for that migration step.
Migration classes consist of a simple class that extends from Doctrine_Migration. You can define a public up() and down() method that is meant for doing and undoing changes to a database for that migration step. The class name is completely arbitrary, but the name of the file which contains the class must have a prefix containing the number it represents in the migration process. Example: XXX_representative_name.class.php
<code type="php">
class MigrationTest extends Doctrine_Record
{
public function setTableDefinition()
{
$this->hasColumn('field1', 'string');
}
}
class Migration2 extends Doctrine_Migration
// 001_add_table.class.php
class AddTable extends Doctrine_Migration
{
public function up()
{
@ -26,7 +19,8 @@ class Migration2 extends Doctrine_Migration
}
}
class Migration3 extends Doctrine_Migration
// 002_add_column.class.php
class AddColumn extends Doctrine_Migration
{
public function up()
{
@ -39,7 +33,8 @@ class Migration3 extends Doctrine_Migration
}
}
class Migration4 extends Doctrine_Migration
// 003_change_column.class.php
class ChangeColumn extends Doctrine_Migration
{
public function up()
{
@ -74,7 +69,8 @@ public function removeIndex($tableName, $indexName)
You can alter table directly in your up() and down() methods like you normally would by creating new model instances and calling save() or creating queries and deleting data.
<code type="php">
class Migration1 extends Doctrine_Migration
// XXX_add_user.class.php
class AddUser extends Doctrine_Migration
{
public function up()
{
@ -97,16 +93,15 @@ class Migration1 extends Doctrine_Migration
++ Performing Migrations
<code type="php">
// Upgrade one at a time
Doctrine_Migration::migration(1, 2);
Doctrine_Migration::migration(2, 3);
Doctrine_Migration::migration(3, 4);
$migration = new Doctrine_Migration('migration_classes');
$migration->migrate(0, 1);
$migration->migrate(1, 2);
$migration->migrate(2, 3);
// Then revert back to version 1
Doctrine_Migration::migration(4, 1);
$migration->migrate(3, 2);
$migration->migrate(2, 1);
$migration->migrate(1, 0);
// One big upgrade
Doctrine_Migration::migration(1, 4);
echo Doctrine_Migration::getCurrentVersion(); // should echo 4
echo $migration->getCurrentVersion(); // should echo 0
</code>

8
models/MigrationTest.php Normal file
View File

@ -0,0 +1,8 @@
<?php
class MigrationTest extends Doctrine_Record
{
public function setTableDefinition()
{
$this->hasColumn('field1', 'string');
}
}

62
tests/MigrationTestCase.php
View File

@ -33,63 +33,17 @@
class Doctrine_Migration_TestCase extends Doctrine_UnitTestCase
{
public function testMigration()
{
{
// Upgrade one at a time
Doctrine_Migration::migration(1, 2);
Doctrine_Migration::migration(2, 3);
Doctrine_Migration::migration(3, 4);
$migration = new Doctrine_Migration('migration_classes');
$migration->migrate(0, 1);
$migration->migrate(1, 2);
// Then revert back to version 1
Doctrine_Migration::migration(4, 1);
$migration->migrate(2, 1);
$migration->migrate(1, 0);
// Check to make sure the current version is 1
$this->assertEqual(Doctrine_Migration::getCurrentVersion(), 1);
// Check to make sure the current version is 0
$this->assertEqual($migration->getCurrentVersion(), 0);
}
}
class MigrationTest extends Doctrine_Record
{
public function setTableDefinition()
{
$this->hasColumn('field1', 'string');
}
}
class Migration2 extends Doctrine_Migration
{
public function up()
{
$this->createTable('migration_test', array('field1' => array('type' => 'string')));
}
public function down()
{
$this->dropTable('migration_test');
}
}
class Migration3 extends Doctrine_Migration
{
public function up()
{
$this->addColumn('migration_test', 'field1', 'string');
}
public function down()
{
$this->renameColumn('migration_test', 'field1', 'field2');
}
}
class Migration4 extends Doctrine_Migration
{
public function up()
{
$this->changeColumn('migration_test', 'field1', 'integer');
}
public function down()
{
$this->changeColumn('migration_test', 'field1', 'string');
}
}

13
tests/migration_classes/001_add_table.php Normal file
View File

@ -0,0 +1,13 @@
<?php
class AddTable extends Doctrine_Migration
{
public function up()
{
$this->createTable('migration_test', array('field1' => array('type' => 'string')));
}
public function down()
{
$this->dropTable('migration_test');
}
}

13
tests/migration_classes/002_change_column.php Normal file
View File

@ -0,0 +1,13 @@
<?php
class ChangeColumn extends Doctrine_Migration
{
public function up()
{
$this->changeColumn('migration_test', 'field1', 'integer');
}
public function down()
{
$this->changeColumn('migration_test', 'field1', 'string');
}
}