768 lines
22 KiB
PHP
768 lines
22 KiB
PHP
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<?php
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namespace Illuminate\Database\Migrations;
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use Illuminate\Console\View\Components\BulletList;
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use Illuminate\Console\View\Components\Info;
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use Illuminate\Console\View\Components\Task;
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use Illuminate\Console\View\Components\TwoColumnDetail;
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use Illuminate\Contracts\Events\Dispatcher;
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use Illuminate\Database\ConnectionResolverInterface as Resolver;
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use Illuminate\Database\Events\MigrationEnded;
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use Illuminate\Database\Events\MigrationsEnded;
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use Illuminate\Database\Events\MigrationsStarted;
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use Illuminate\Database\Events\MigrationStarted;
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use Illuminate\Database\Events\NoPendingMigrations;
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use Illuminate\Filesystem\Filesystem;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Collection;
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use Illuminate\Support\Str;
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use ReflectionClass;
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use Symfony\Component\Console\Output\OutputInterface;
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class Migrator
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{
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/**
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* The event dispatcher instance.
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*
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* @var \Illuminate\Contracts\Events\Dispatcher
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*/
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protected $events;
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/**
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* The migration repository implementation.
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*
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* @var \Illuminate\Database\Migrations\MigrationRepositoryInterface
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*/
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protected $repository;
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/**
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* The filesystem instance.
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*
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* @var \Illuminate\Filesystem\Filesystem
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*/
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protected $files;
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/**
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* The connection resolver instance.
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*
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* @var \Illuminate\Database\ConnectionResolverInterface
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*/
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protected $resolver;
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/**
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* The name of the default connection.
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*
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* @var string
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*/
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protected $connection;
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/**
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* The paths to all of the migration files.
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*
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* @var array
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*/
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protected $paths = [];
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/**
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* The paths that have already been required.
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*
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* @var array<string, \Illuminate\Database\Migrations\Migration|null>
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*/
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protected static $requiredPathCache = [];
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/**
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* The output interface implementation.
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*
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* @var \Symfony\Component\Console\Output\OutputInterface
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*/
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protected $output;
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/**
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* Create a new migrator instance.
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*
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* @param \Illuminate\Database\Migrations\MigrationRepositoryInterface $repository
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* @param \Illuminate\Database\ConnectionResolverInterface $resolver
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* @param \Illuminate\Filesystem\Filesystem $files
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* @param \Illuminate\Contracts\Events\Dispatcher|null $dispatcher
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* @return void
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*/
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public function __construct(MigrationRepositoryInterface $repository,
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Resolver $resolver,
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Filesystem $files,
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?Dispatcher $dispatcher = null)
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{
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$this->files = $files;
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$this->events = $dispatcher;
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$this->resolver = $resolver;
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$this->repository = $repository;
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}
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/**
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* Run the pending migrations at a given path.
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*
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* @param array|string $paths
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* @param array $options
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* @return array
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*/
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public function run($paths = [], array $options = [])
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{
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// Once we grab all of the migration files for the path, we will compare them
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// against the migrations that have already been run for this package then
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// run each of the outstanding migrations against a database connection.
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$files = $this->getMigrationFiles($paths);
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$this->requireFiles($migrations = $this->pendingMigrations(
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$files, $this->repository->getRan()
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));
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// Once we have all these migrations that are outstanding we are ready to run
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// we will go ahead and run them "up". This will execute each migration as
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// an operation against a database. Then we'll return this list of them.
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$this->runPending($migrations, $options);
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return $migrations;
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}
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/**
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* Get the migration files that have not yet run.
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*
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* @param array $files
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* @param array $ran
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* @return array
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*/
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protected function pendingMigrations($files, $ran)
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{
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return Collection::make($files)
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->reject(function ($file) use ($ran) {
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return in_array($this->getMigrationName($file), $ran);
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})->values()->all();
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}
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/**
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* Run an array of migrations.
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*
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* @param array $migrations
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* @param array $options
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* @return void
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*/
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public function runPending(array $migrations, array $options = [])
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{
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// First we will just make sure that there are any migrations to run. If there
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// aren't, we will just make a note of it to the developer so they're aware
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// that all of the migrations have been run against this database system.
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if (count($migrations) === 0) {
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$this->fireMigrationEvent(new NoPendingMigrations('up'));
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$this->write(Info::class, 'Nothing to migrate');
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return;
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}
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// Next, we will get the next batch number for the migrations so we can insert
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// correct batch number in the database migrations repository when we store
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// each migration's execution. We will also extract a few of the options.
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$batch = $this->repository->getNextBatchNumber();
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$pretend = $options['pretend'] ?? false;
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$step = $options['step'] ?? false;
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$this->fireMigrationEvent(new MigrationsStarted('up'));
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$this->write(Info::class, 'Running migrations.');
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// Once we have the array of migrations, we will spin through them and run the
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// migrations "up" so the changes are made to the databases. We'll then log
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// that the migration was run so we don't repeat it next time we execute.
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foreach ($migrations as $file) {
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$this->runUp($file, $batch, $pretend);
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if ($step) {
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$batch++;
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}
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}
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$this->fireMigrationEvent(new MigrationsEnded('up'));
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if ($this->output) {
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$this->output->writeln('');
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}
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}
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/**
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* Run "up" a migration instance.
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*
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* @param string $file
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* @param int $batch
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* @param bool $pretend
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* @return void
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*/
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protected function runUp($file, $batch, $pretend)
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{
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// First we will resolve a "real" instance of the migration class from this
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// migration file name. Once we have the instances we can run the actual
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// command such as "up" or "down", or we can just simulate the action.
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$migration = $this->resolvePath($file);
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$name = $this->getMigrationName($file);
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if ($pretend) {
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return $this->pretendToRun($migration, 'up');
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}
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$this->write(Task::class, $name, fn () => $this->runMigration($migration, 'up'));
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// Once we have run a migrations class, we will log that it was run in this
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// repository so that we don't try to run it next time we do a migration
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// in the application. A migration repository keeps the migrate order.
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$this->repository->log($name, $batch);
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}
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/**
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* Rollback the last migration operation.
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*
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* @param array|string $paths
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* @param array $options
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* @return array
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*/
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public function rollback($paths = [], array $options = [])
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{
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// We want to pull in the last batch of migrations that ran on the previous
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// migration operation. We'll then reverse those migrations and run each
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// of them "down" to reverse the last migration "operation" which ran.
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$migrations = $this->getMigrationsForRollback($options);
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if (count($migrations) === 0) {
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$this->fireMigrationEvent(new NoPendingMigrations('down'));
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$this->write(Info::class, 'Nothing to rollback.');
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return [];
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}
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return tap($this->rollbackMigrations($migrations, $paths, $options), function () {
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if ($this->output) {
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$this->output->writeln('');
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}
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});
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}
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/**
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* Get the migrations for a rollback operation.
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*
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* @param array $options
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* @return array
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*/
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protected function getMigrationsForRollback(array $options)
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{
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if (($steps = $options['step'] ?? 0) > 0) {
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return $this->repository->getMigrations($steps);
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}
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if (($batch = $options['batch'] ?? 0) > 0) {
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return $this->repository->getMigrationsByBatch($batch);
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}
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return $this->repository->getLast();
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}
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/**
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* Rollback the given migrations.
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*
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* @param array $migrations
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* @param array|string $paths
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* @param array $options
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* @return array
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*/
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protected function rollbackMigrations(array $migrations, $paths, array $options)
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{
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$rolledBack = [];
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$this->requireFiles($files = $this->getMigrationFiles($paths));
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$this->fireMigrationEvent(new MigrationsStarted('down'));
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$this->write(Info::class, 'Rolling back migrations.');
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// Next we will run through all of the migrations and call the "down" method
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// which will reverse each migration in order. This getLast method on the
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// repository already returns these migration's names in reverse order.
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foreach ($migrations as $migration) {
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$migration = (object) $migration;
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if (! $file = Arr::get($files, $migration->migration)) {
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$this->write(TwoColumnDetail::class, $migration->migration, '<fg=yellow;options=bold>Migration not found</>');
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continue;
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}
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$rolledBack[] = $file;
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$this->runDown(
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$file, $migration,
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$options['pretend'] ?? false
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);
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}
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$this->fireMigrationEvent(new MigrationsEnded('down'));
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return $rolledBack;
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}
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/**
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* Rolls all of the currently applied migrations back.
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*
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* @param array|string $paths
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* @param bool $pretend
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* @return array
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*/
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public function reset($paths = [], $pretend = false)
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{
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// Next, we will reverse the migration list so we can run them back in the
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// correct order for resetting this database. This will allow us to get
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// the database back into its "empty" state ready for the migrations.
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$migrations = array_reverse($this->repository->getRan());
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if (count($migrations) === 0) {
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$this->write(Info::class, 'Nothing to rollback.');
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return [];
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}
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return tap($this->resetMigrations($migrations, Arr::wrap($paths), $pretend), function () {
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if ($this->output) {
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$this->output->writeln('');
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}
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});
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}
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/**
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* Reset the given migrations.
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*
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* @param array $migrations
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* @param array $paths
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* @param bool $pretend
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* @return array
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*/
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protected function resetMigrations(array $migrations, array $paths, $pretend = false)
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{
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// Since the getRan method that retrieves the migration name just gives us the
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// migration name, we will format the names into objects with the name as a
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// property on the objects so that we can pass it to the rollback method.
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$migrations = collect($migrations)->map(function ($m) {
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return (object) ['migration' => $m];
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})->all();
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return $this->rollbackMigrations(
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$migrations, $paths, compact('pretend')
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);
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}
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/**
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* Run "down" a migration instance.
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*
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* @param string $file
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* @param object $migration
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* @param bool $pretend
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* @return void
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*/
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protected function runDown($file, $migration, $pretend)
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{
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// First we will get the file name of the migration so we can resolve out an
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// instance of the migration. Once we get an instance we can either run a
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// pretend execution of the migration or we can run the real migration.
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$instance = $this->resolvePath($file);
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$name = $this->getMigrationName($file);
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if ($pretend) {
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return $this->pretendToRun($instance, 'down');
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}
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$this->write(Task::class, $name, fn () => $this->runMigration($instance, 'down'));
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// Once we have successfully run the migration "down" we will remove it from
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// the migration repository so it will be considered to have not been run
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// by the application then will be able to fire by any later operation.
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$this->repository->delete($migration);
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}
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/**
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* Run a migration inside a transaction if the database supports it.
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*
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* @param object $migration
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* @param string $method
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* @return void
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|
|
*/
|
||
|
|
protected function runMigration($migration, $method)
|
||
|
|
{
|
||
|
|
$connection = $this->resolveConnection(
|
||
|
|
$migration->getConnection()
|
||
|
|
);
|
||
|
|
|
||
|
|
$callback = function () use ($connection, $migration, $method) {
|
||
|
|
if (method_exists($migration, $method)) {
|
||
|
|
$this->fireMigrationEvent(new MigrationStarted($migration, $method));
|
||
|
|
|
||
|
|
$this->runMethod($connection, $migration, $method);
|
||
|
|
|
||
|
|
$this->fireMigrationEvent(new MigrationEnded($migration, $method));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
$this->getSchemaGrammar($connection)->supportsSchemaTransactions()
|
||
|
|
&& $migration->withinTransaction
|
||
|
|
? $connection->transaction($callback)
|
||
|
|
: $callback();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Pretend to run the migrations.
|
||
|
|
*
|
||
|
|
* @param object $migration
|
||
|
|
* @param string $method
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function pretendToRun($migration, $method)
|
||
|
|
{
|
||
|
|
$name = get_class($migration);
|
||
|
|
|
||
|
|
$reflectionClass = new ReflectionClass($migration);
|
||
|
|
|
||
|
|
if ($reflectionClass->isAnonymous()) {
|
||
|
|
$name = $this->getMigrationName($reflectionClass->getFileName());
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->write(TwoColumnDetail::class, $name);
|
||
|
|
|
||
|
|
$this->write(BulletList::class, collect($this->getQueries($migration, $method))->map(function ($query) {
|
||
|
|
return $query['query'];
|
||
|
|
}));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get all of the queries that would be run for a migration.
|
||
|
|
*
|
||
|
|
* @param object $migration
|
||
|
|
* @param string $method
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
protected function getQueries($migration, $method)
|
||
|
|
{
|
||
|
|
// Now that we have the connections we can resolve it and pretend to run the
|
||
|
|
// queries against the database returning the array of raw SQL statements
|
||
|
|
// that would get fired against the database system for this migration.
|
||
|
|
$db = $this->resolveConnection(
|
||
|
|
$migration->getConnection()
|
||
|
|
);
|
||
|
|
|
||
|
|
return $db->pretend(function () use ($db, $migration, $method) {
|
||
|
|
if (method_exists($migration, $method)) {
|
||
|
|
$this->runMethod($db, $migration, $method);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Run a migration method on the given connection.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Connection $connection
|
||
|
|
* @param object $migration
|
||
|
|
* @param string $method
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function runMethod($connection, $migration, $method)
|
||
|
|
{
|
||
|
|
$previousConnection = $this->resolver->getDefaultConnection();
|
||
|
|
|
||
|
|
try {
|
||
|
|
$this->resolver->setDefaultConnection($connection->getName());
|
||
|
|
|
||
|
|
$migration->{$method}();
|
||
|
|
} finally {
|
||
|
|
$this->resolver->setDefaultConnection($previousConnection);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resolve a migration instance from a file.
|
||
|
|
*
|
||
|
|
* @param string $file
|
||
|
|
* @return object
|
||
|
|
*/
|
||
|
|
public function resolve($file)
|
||
|
|
{
|
||
|
|
$class = $this->getMigrationClass($file);
|
||
|
|
|
||
|
|
return new $class;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resolve a migration instance from a migration path.
|
||
|
|
*
|
||
|
|
* @param string $path
|
||
|
|
* @return object
|
||
|
|
*/
|
||
|
|
protected function resolvePath(string $path)
|
||
|
|
{
|
||
|
|
$class = $this->getMigrationClass($this->getMigrationName($path));
|
||
|
|
|
||
|
|
if (class_exists($class) && realpath($path) == (new ReflectionClass($class))->getFileName()) {
|
||
|
|
return new $class;
|
||
|
|
}
|
||
|
|
|
||
|
|
$migration = static::$requiredPathCache[$path] ??= $this->files->getRequire($path);
|
||
|
|
|
||
|
|
if (is_object($migration)) {
|
||
|
|
return method_exists($migration, '__construct')
|
||
|
|
? $this->files->getRequire($path)
|
||
|
|
: clone $migration;
|
||
|
|
}
|
||
|
|
|
||
|
|
return new $class;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate a migration class name based on the migration file name.
|
||
|
|
*
|
||
|
|
* @param string $migrationName
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function getMigrationClass(string $migrationName): string
|
||
|
|
{
|
||
|
|
return Str::studly(implode('_', array_slice(explode('_', $migrationName), 4)));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get all of the migration files in a given path.
|
||
|
|
*
|
||
|
|
* @param string|array $paths
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getMigrationFiles($paths)
|
||
|
|
{
|
||
|
|
return Collection::make($paths)->flatMap(function ($path) {
|
||
|
|
return str_ends_with($path, '.php') ? [$path] : $this->files->glob($path.'/*_*.php');
|
||
|
|
})->filter()->values()->keyBy(function ($file) {
|
||
|
|
return $this->getMigrationName($file);
|
||
|
|
})->sortBy(function ($file, $key) {
|
||
|
|
return $key;
|
||
|
|
})->all();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Require in all the migration files in a given path.
|
||
|
|
*
|
||
|
|
* @param array $files
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function requireFiles(array $files)
|
||
|
|
{
|
||
|
|
foreach ($files as $file) {
|
||
|
|
$this->files->requireOnce($file);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the name of the migration.
|
||
|
|
*
|
||
|
|
* @param string $path
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getMigrationName($path)
|
||
|
|
{
|
||
|
|
return str_replace('.php', '', basename($path));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Register a custom migration path.
|
||
|
|
*
|
||
|
|
* @param string $path
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function path($path)
|
||
|
|
{
|
||
|
|
$this->paths = array_unique(array_merge($this->paths, [$path]));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get all of the custom migration paths.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function paths()
|
||
|
|
{
|
||
|
|
return $this->paths;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the default connection name.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getConnection()
|
||
|
|
{
|
||
|
|
return $this->connection;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Execute the given callback using the given connection as the default connection.
|
||
|
|
*
|
||
|
|
* @param string $name
|
||
|
|
* @param callable $callback
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
public function usingConnection($name, callable $callback)
|
||
|
|
{
|
||
|
|
$previousConnection = $this->resolver->getDefaultConnection();
|
||
|
|
|
||
|
|
$this->setConnection($name);
|
||
|
|
|
||
|
|
return tap($callback(), function () use ($previousConnection) {
|
||
|
|
$this->setConnection($previousConnection);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the default connection name.
|
||
|
|
*
|
||
|
|
* @param string $name
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function setConnection($name)
|
||
|
|
{
|
||
|
|
if (! is_null($name)) {
|
||
|
|
$this->resolver->setDefaultConnection($name);
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->repository->setSource($name);
|
||
|
|
|
||
|
|
$this->connection = $name;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resolve the database connection instance.
|
||
|
|
*
|
||
|
|
* @param string $connection
|
||
|
|
* @return \Illuminate\Database\Connection
|
||
|
|
*/
|
||
|
|
public function resolveConnection($connection)
|
||
|
|
{
|
||
|
|
return $this->resolver->connection($connection ?: $this->connection);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the schema grammar out of a migration connection.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Database\Connection $connection
|
||
|
|
* @return \Illuminate\Database\Schema\Grammars\Grammar
|
||
|
|
*/
|
||
|
|
protected function getSchemaGrammar($connection)
|
||
|
|
{
|
||
|
|
if (is_null($grammar = $connection->getSchemaGrammar())) {
|
||
|
|
$connection->useDefaultSchemaGrammar();
|
||
|
|
|
||
|
|
$grammar = $connection->getSchemaGrammar();
|
||
|
|
}
|
||
|
|
|
||
|
|
return $grammar;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the migration repository instance.
|
||
|
|
*
|
||
|
|
* @return \Illuminate\Database\Migrations\MigrationRepositoryInterface
|
||
|
|
*/
|
||
|
|
public function getRepository()
|
||
|
|
{
|
||
|
|
return $this->repository;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if the migration repository exists.
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function repositoryExists()
|
||
|
|
{
|
||
|
|
return $this->repository->repositoryExists();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if any migrations have been run.
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function hasRunAnyMigrations()
|
||
|
|
{
|
||
|
|
return $this->repositoryExists() && count($this->repository->getRan()) > 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Delete the migration repository data store.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function deleteRepository()
|
||
|
|
{
|
||
|
|
$this->repository->deleteRepository();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the file system instance.
|
||
|
|
*
|
||
|
|
* @return \Illuminate\Filesystem\Filesystem
|
||
|
|
*/
|
||
|
|
public function getFilesystem()
|
||
|
|
{
|
||
|
|
return $this->files;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the output implementation that should be used by the console.
|
||
|
|
*
|
||
|
|
* @param \Symfony\Component\Console\Output\OutputInterface $output
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function setOutput(OutputInterface $output)
|
||
|
|
{
|
||
|
|
$this->output = $output;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Write to the console's output.
|
||
|
|
*
|
||
|
|
* @param string $component
|
||
|
|
* @param array<int, string>|string ...$arguments
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function write($component, ...$arguments)
|
||
|
|
{
|
||
|
|
if ($this->output && class_exists($component)) {
|
||
|
|
(new $component($this->output))->render(...$arguments);
|
||
|
|
} else {
|
||
|
|
foreach ($arguments as $argument) {
|
||
|
|
if (is_callable($argument)) {
|
||
|
|
$argument();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fire the given event for the migration.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Contracts\Database\Events\MigrationEvent $event
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function fireMigrationEvent($event)
|
||
|
|
{
|
||
|
|
if ($this->events) {
|
||
|
|
$this->events->dispatch($event);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|