/**
* @param callable $migration Closure that receives the table to operate on.
*
* <example>
* $migration->execute(function($table) {
* $table
* ->removeColumn('name')
* ->save();
* });
* </example>
*/
public function execute(callable $migration)
{
$this->logger->info("Starting LHM run on table={$this->origin->getName()}");
$sqlHelper = new SqlHelper($this->adapter);
if (!isset($options['atomic_switch'])) {
if ($sqlHelper->supportsAtomicSwitch()) {
$this->options['atomic_switch'] = true;
} else {
$version = $sqlHelper->versionString();
throw new \RuntimeException("Using mysql {$version}. You must explicitly set `options['atomic_switch']` (re SqlHelper::supportsAtomicSwitch)");
}
}
if (!$this->destination) {
$this->destination = $this->temporaryTable();
}
$this->setSessionLockWaitTimeouts();
$entangler = new Entangler($this->adapter, $this->origin, $this->destination, $sqlHelper);
$entangler->setLogger($this->logger);
if ($this->options['atomic_switch']) {
$switcher = new AtomicSwitcher($this->adapter, $this->origin, $this->destination, $this->options);
} else {
$switcher = new LockedSwitcher($this->adapter, $this->origin, $this->destination, $this->options);
}
$switcher->setLogger($this->logger);
$chunker = new Chunker($this->adapter, $this->origin, $this->destination, $sqlHelper, $this->options);
$chunker->setLogger($this->logger);
$migration($this->destination);
$entangler->run(function () use($chunker, $switcher) {
$chunker->run();
$switcher->run();
});
}
public function testRun()
{
/** @var Column[] $originColumns */
$originColumns = [new Column(), new Column(), new Column()];
$originColumns[0]->setName('id');
$originColumns[1]->setName('name');
$originColumns[2]->setName('something');
/** @var Column[] $destinationColumns */
$destinationColumns = [new Column(), new Column(), new Column()];
$destinationColumns[0]->setName('id');
$destinationColumns[1]->setName('name');
$destinationColumns[2]->setName('something_else');
$this->origin->expects($this->atLeastOnce())->method('getName')->will($this->returnValue('users'));
$this->origin->expects($this->atLeastOnce())->method('getColumns')->will($this->returnValue($originColumns));
$this->destination->expects($this->atLeastOnce())->method('getName')->will($this->returnValue('users_new'));
$this->destination->expects($this->atLeastOnce())->method('getColumns')->will($this->returnValue($destinationColumns));
$this->destination->expects($this->atLeastOnce())->method('getRenamedColumns')->will($this->returnValue([]));
$matcher = $this->atLeastOnce();
$this->adapter->expects($matcher)->method('fetchRow')->will($this->returnCallback(function ($query) use($matcher) {
switch ($matcher->getInvocationCount()) {
case 1:
$this->assertEquals("SELECT MIN(id) FROM 'users'", $query);
return [1];
case 2:
$this->assertEquals("SELECT MAX(id) FROM 'users'", $query);
return [500];
default:
return null;
break;
}
}));
$matcher = $this->atLeastOnce();
$this->adapter->expects($matcher)->method('query')->will($this->returnCallback(function ($query) use($matcher) {
switch ($matcher->getInvocationCount()) {
case 1:
$this->assertEquals("SELECT `COLUMN_NAME` FROM `information_schema`.`COLUMNS` WHERE (`TABLE_SCHEMA` = '') AND (`TABLE_NAME` = 'users') AND (`COLUMN_KEY` = 'PRI');", $query);
return 'id';
case 2:
$this->assertEquals("INSERT IGNORE INTO 'users_new' (`id`,`name`) SELECT 'users'.`id`,'users'.`name` FROM 'users' WHERE 'users'.`id` BETWEEN 1 AND 200", $query);
break;
case 3:
$this->assertEquals("INSERT IGNORE INTO 'users_new' (`id`,`name`) SELECT 'users'.`id`,'users'.`name` FROM 'users' WHERE 'users'.`id` BETWEEN 201 AND 400", $query);
break;
case 4:
$this->assertEquals("INSERT IGNORE INTO 'users_new' (`id`,`name`) SELECT 'users'.`id`,'users'.`name` FROM 'users' WHERE 'users'.`id` BETWEEN 401 AND 500", $query);
break;
default:
$this->fail('Unexpected query: ' . $query);
break;
}
}));
$chunker = new Chunker($this->adapter, $this->origin, $this->destination, $this->sqlHelper, ['stride' => 200]);
$chunker->run();
}