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<?php
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namespace Illuminate\Foundation\Testing;
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use Illuminate\Contracts\Console\Kernel;
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use Illuminate\Database\ConnectionInterface;
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use Illuminate\Foundation\Testing\Traits\CanConfigureMigrationCommands;
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trait DatabaseTruncation
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{
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use CanConfigureMigrationCommands;
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/**
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* The cached names of the database tables for each connection.
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*
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* @var array
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*/
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protected static array $allTables;
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/**
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* Truncate the database tables for all configured connections.
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*
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* @return void
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*/
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protected function truncateDatabaseTables(): void
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{
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// Migrate and seed the database on first run...
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if (! RefreshDatabaseState::$migrated) {
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$this->artisan('migrate:fresh', $this->migrateFreshUsing());
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$this->app[Kernel::class]->setArtisan(null);
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RefreshDatabaseState::$migrated = true;
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return;
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}
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// Always clear any test data on subsequent runs...
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$this->truncateTablesForAllConnections();
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if ($seeder = $this->seeder()) {
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// Use a specific seeder class...
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$this->artisan('db:seed', ['--class' => $seeder]);
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} elseif ($this->shouldSeed()) {
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// Use the default seeder class...
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$this->artisan('db:seed');
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}
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}
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/**
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* Truncate the database tables for all configured connections.
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*
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* @return void
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*/
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protected function truncateTablesForAllConnections(): void
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{
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$database = $this->app->make('db');
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collect($this->connectionsToTruncate())
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->each(function ($name) use ($database) {
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$connection = $database->connection($name);
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$connection->getSchemaBuilder()->withoutForeignKeyConstraints(
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fn () => $this->truncateTablesForConnection($connection, $name)
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);
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});
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}
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/**
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* Truncate the database tables for the given database connection.
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*
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* @param \Illuminate\Database\ConnectionInterface $connection
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* @param string|null $name
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* @return void
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*/
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protected function truncateTablesForConnection(ConnectionInterface $connection, ?string $name): void
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{
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$dispatcher = $connection->getEventDispatcher();
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$connection->unsetEventDispatcher();
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collect(static::$allTables[$name] ??= $connection->getDoctrineSchemaManager()->listTableNames())
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->when(
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property_exists($this, 'tablesToTruncate'),
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fn ($tables) => $tables->intersect($this->tablesToTruncate),
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fn ($tables) => $tables->diff($this->exceptTables($name))
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)
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->filter(fn ($table) => $connection->table($table)->exists())
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->each(fn ($table) => $connection->table($table)->truncate());
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$connection->setEventDispatcher($dispatcher);
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}
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/**
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* The database connections that should have their tables truncated.
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*
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* @return array
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*/
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protected function connectionsToTruncate(): array
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{
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return property_exists($this, 'connectionsToTruncate')
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? $this->connectionsToTruncate : [null];
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}
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/**
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* Get the tables that should not be truncated.
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*
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* @param string|null $connectionName
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* @return array
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*/
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protected function exceptTables(?string $connectionName): array
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{
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if (property_exists($this, 'exceptTables')) {
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return array_merge(
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$this->exceptTables[$connectionName] ?? [],
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[$this->app['config']->get('database.migrations')]
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);
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}
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return [$this->app['config']->get('database.migrations')];
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}
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}
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