作られるタイミング

php artisan migrate

MigrateCommand.php

📁 vendor/laravel/framework/src/Illuminate/Database/Console/Migrations/MigrateCommand.php

<?php


namespace Illuminate\Database\Console\Migrations;


use Illuminate\Console\ConfirmableTrait;
use Illuminate\Database\Migrations\Migrator;


class MigrateCommand extends BaseCommand
{
    use ConfirmableTrait;


    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'migrate {--database= : The database connection to use}
                {--force : Force the operation to run when in production}
                {--path=* : The path(s) to the migrations files to be executed}
                {--realpath : Indicate any provided migration file paths are pre-resolved absolute paths}
                {--pretend : Dump the SQL queries that would be run}
                {--seed : Indicates if the seed task should be re-run}
                {--step : Force the migrations to be run so they can be rolled back individually}';


    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Run the database migrations';


    /**
     * The migrator instance.
     *
     * @var \Illuminate\Database\Migrations\Migrator
     */
    protected $migrator;


    /**
     * Create a new migration command instance.
     *
     * @param  \Illuminate\Database\Migrations\Migrator  $migrator
     * @return void
     */
    public function __construct(Migrator $migrator)
    {
        parent::__construct();


        $this->migrator = $migrator;
    }


    /**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        if (! $this->confirmToProceed()) {
            return;
        }


        $this->prepareDatabase();


        // Next, we will check to see if a path option has been defined. If it has
        // we will use the path relative to the root of this installation folder
        // so that migrations may be run for any path within the applications.
        $this->migrator->setOutput($this->output)
                ->run($this->getMigrationPaths(), [
                    'pretend' => $this->option('pretend'),
                    'step' => $this->option('step'),
                ]);


        // Finally, if the "seed" option has been given, we will re-run the database
        // seed task to re-populate the database, which is convenient when adding
        // a migration and a seed at the same time, as it is only this command.
        if ($this->option('seed') && ! $this->option('pretend')) {
            $this->call('db:seed', ['--force' => true]);
        }
    }


    /**
     * Prepare the migration database for running.
     *
     * @return void
     */
    protected function prepareDatabase()
    {
        $this->migrator->setConnection($this->option('database'));


        if (! $this->migrator->repositoryExists()) {
            $this->call('migrate:install', array_filter([
                '--database' => $this->option('database'),
            ]));
        }
    }
}

/**
 * The name and signature of the console command.
 *
 * @var string
　　*/
protected $signature = 'migrate ~ 省略 ~';

php artisan ~~~~ <-この部分

php artisan migrate

    /**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        if (! $this->confirmToProceed()) {
            return;
        }


        $this->prepareDatabase();


        // Next, we will check to see if a path option has been defined. If it has
        // we will use the path relative to the root of this installation folder
        // so that migrations may be run for any path within the applications.
        $this->migrator->setOutput($this->output)
                ->run($this->getMigrationPaths(), [
                    'pretend' => $this->option('pretend'),
                    'step' => $this->option('step'),
                ]);


        // Finally, if the "seed" option has been given, we will re-run the database
        // seed task to re-populate the database, which is convenient when adding
        // a migration and a seed at the same time, as it is only this command.
        if ($this->option('seed') && ! $this->option('pretend')) {
            $this->call('db:seed', ['--force' => true]);
        }
    }

$this->prepareDatabase();

    /**
     * Prepare the migration database for running.
     *
     * @return void
     */
    protected function prepareDatabase()
    {
        $this->migrator->setConnection($this->option('database'));


        if (! $this->migrator->repositoryExists()) {
            $this->call('migrate:install', array_filter([
                '--database' => $this->option('database'),
            ]));
        }
    }

        if (! $this->migrator->repositoryExists()) {
            $this->call('migrate:install', array_filter([
                '--database' => $this->option('database'),
            ]));
        }

repositoryExists()

$this->call('migrate:install', ~~省略~~

repositoryExists()

repositoryExists()関数

📁 vendor/larave/framework/src/Illuminate/Database/Migrations/DatabaseMigrationRepository.php

~~省略~~

    /**
     * Determine if the migration repository exists.
     *
     * @return bool
     */
    public function repositoryExists()
    {
        $schema = $this->getConnection()->getSchemaBuilder();


        return $schema->hasTable($this->table);
    }

~~省略~~

$schema = $this->getConnection()->getSchemaBuilder();

return $schema->hasTable($this->table);

hasTable($this->table);

php artisan migrate

migrate:installコマンド

📁 vendor/laravel/framework/src/Illuminate/Database/Console/Migrations/MigrateCommand.php

~~省略~~

        if (! $this->migrator->repositoryExists()) {
            $this->call('migrate:install', array_filter([
                '--database' => $this->option('database'),
            ]));
        }

~~省略~~

repositoryExists()

php artisan migrate

            $this->call('migrate:install', array_filter([
                '--database' => $this->option('database'),
            ]));

$this->call('~~~')

'migrate:install'

'migrate:install'

📁 vendor/laravel/framework/src/Illuminate/Database/Console/Migrations/InstallCommand.php

<?php


namespace Illuminate\Database\Console\Migrations;


use Illuminate\Console\Command;
use Illuminate\Database\Migrations\MigrationRepositoryInterface;
use Symfony\Component\Console\Input\InputOption;


class InstallCommand extends Command
{
    /**
     * The console command name.
     *
     * @var string
     */
    protected $name = 'migrate:install';


    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Create the migration repository';


    /**
     * The repository instance.
     *
     * @var \Illuminate\Database\Migrations\MigrationRepositoryInterface
     */
    protected $repository;


    /**
     * Create a new migration install command instance.
     *
     * @param  \Illuminate\Database\Migrations\MigrationRepositoryInterface  $repository
     * @return void
     */
    public function __construct(MigrationRepositoryInterface $repository)
    {
        parent::__construct();


        $this->repository = $repository;
    }


    /**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        $this->repository->setSource($this->input->getOption('database'));


        $this->repository->createRepository();


        $this->info('Migration table created successfully.');
    }


    /**
     * Get the console command options.
     *
     * @return array
     */
    protected function getOptions()
    {
        return [
            ['database', null, InputOption::VALUE_OPTIONAL, 'The database connection to use'],
        ];
    }
}

/**
     * The console command name.
     *
     * @var string
     */
    protected $name = 'migrate:install';

    /**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        $this->repository->setSource($this->input->getOption('database'));


        $this->repository->createRepository();


        $this->info('Migration table created successfully.');
    }

$this->repository->setSource($this->input->getOption('database'));

$this->repository->createRepository();

$this->info('Migration table created successfully.');

$this->repository->createRepository();

createRepository()関数

📁 vendor/laravel/framework/src/Illuminate/Database/Migrations/DatabaseMigrationRepository.php

~~省略~~

    /**
     * Create the migration repository data store.
     *
     * @return void
     */
    public function createRepository()
    {
        $schema = $this->getConnection()->getSchemaBuilder();


        $schema->create($this->table, function ($table) {
            // The migrations table is responsible for keeping track of which of the
            // migrations have actually run for the application. We'll create the
            // table to hold the migration file's path as well as the batch ID.
            $table->increments('id');
            $table->string('migration');
            $table->integer('batch');
        });
    }

~~省略~~

$schema->create($this->table, function~~~

$this->table

'migrations'

      $table->increments('id');
      $table->string('migration');
      $table->integer('batch');

ちなみに

📁 vendor/laravel/framework/src/Illuminate/Database/Console/Migrations/MigrateCommand.php

~~省略~~

    /**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        if (! $this->confirmToProceed()) {
            return;
        }


        $this->prepareDatabase();


        // Next, we will check to see if a path option has been defined. If it has
        // we will use the path relative to the root of this installation folder
        // so that migrations may be run for any path within the applications.
        $this->migrator->setOutput($this->output)
                ->run($this->getMigrationPaths(), [
                    'pretend' => $this->option('pretend'),
                    'step' => $this->option('step'),
                ]);


        // Finally, if the "seed" option has been given, we will re-run the database
        // seed task to re-populate the database, which is convenient when adding
        // a migration and a seed at the same time, as it is only this command.
        if ($this->option('seed') && ! $this->option('pretend')) {
            $this->call('db:seed', ['--force' => true]);
        }
    }

~~省略~~

        // Next, we will check to see if a path option has been defined. If it has
        // we will use the path relative to the root of this installation folder
        // so that migrations may be run for any path within the applications.
        $this->migrator->setOutput($this->output)
                ->run($this->getMigrationPaths(), [
                    'pretend' => $this->option('pretend'),
                    'step' => $this->option('step'),
                ]);

->run

repositoryExists()

要するに

php artisan migrate

終わりに