How to convert Laravel migrations to raw SQL scripts?

Update 2023-05-24 / Laravel 10

Lately I’ve been using this one-liner to get a list of all migrations as queries:

php artisan tinker --no-ansi --execute 'echo implode(PHP_EOL, array_reduce(glob("database/migrations/*.php"), fn($c, $i) => [...$c, ...array_column(app("db")->pretend(fn() => (include $i)->up()), "query")], []))'


Use the migrate command

You can add the --pretend flag when you run php artisan migrate to output the queries to the terminal:

php artisan migrate --pretend

This will look something like this:

Migration table created successfully.
CreateUsersTable: create table "users" ("id" integer not null primary key autoincrement, "name" varchar not null, "email" varchar not null, "password" varchar not null, "remember_token" varchar null, "created_at" datetime not null, "updated_at" datetime not null)
CreateUsersTable: create unique index users_email_unique on "users" ("email")
CreatePasswordResetsTable: create table "password_resets" ("email" varchar not null, "token" varchar not null, "created_at" datetime not null)
CreatePasswordResetsTable: create index password_resets_email_index on "password_resets" ("email")
CreatePasswordResetsTable: create index password_resets_token_index on "password_resets" ("token")

To save this to a file, just redirect the output without ansi:

php artisan migrate --pretend --no-ansi > migrate.sql

This command only include the migrations that hasn’t been migrated yet.


Hack the migrate command

To further customize how to get the queries, consider hacking the source and make your own custom command or something like that. To get you started, here is some quick code to get all the migrations.

Example code

$migrator = app('migrator');
$db = $migrator->resolveConnection(null);
$migrations = $migrator->getMigrationFiles('database/migrations');
$queries = [];

foreach($migrations as $migration) {
    $migration_name = $migration;
    $migration = $migrator->resolve($migration);

    $queries[] = [
        'name' => $migration_name,
        'queries' => array_column($db->pretend(function() use ($migration) { $migration->up(); }), 'query'),
    ];
}

dd($queries);

Example output

array:2 [
  0 => array:2 [
    "name" => "2014_10_12_000000_create_users_table"
    "queries" => array:2 [
      0 => "create table "users" ("id" integer not null primary key autoincrement, "name" varchar not null, "email" varchar not null, "password" varchar not null, "remember_token" varchar null, "created_at" datetime not null, "updated_at" datetime not null)"
      1 => "create unique index users_email_unique on "users" ("email")"
    ]
  ]
  1 => array:2 [
    "name" => "2014_10_12_100000_create_password_resets_table"
    "queries" => array:3 [
      0 => "create table "password_resets" ("email" varchar not null, "token" varchar not null, "created_at" datetime not null)"
      1 => "create index password_resets_email_index on "password_resets" ("email")"
      2 => "create index password_resets_token_index on "password_resets" ("token")"
    ]
  ]
]

This code will include all the migrations. To see how to only get what isn’t already migrated take a look at the run() method in vendor/laravel/framework/src/Illuminate/Database/Migrations/Migrator.php.

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