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Laravel Migration Generator

Generate migrations from existing database structures, an alternative to the schema dump provided by Laravel. A primary use case for this package would be a project that has many migrations that alter tables using ->change() from doctrine/dbal that SQLite doesn't support and need a way to get table structures updated for SQLite to use in tests. Another use case would be taking a project with a database and no migrations and turning that database into base migrations.

Installation

composer require --dev bennett-treptow/laravel-migration-generator

php artisan vendor:publish --provider="LaravelMigrationGenerator\LaravelMigrationGeneratorProvider"

Lumen Installation

composer require --dev bennett-treptow/laravel-migration-generator

Copy config file from vendor/bennett-treptow/laravel-migration-generator/config to your Lumen config folder

Register service provider in bootstrap/app.php

$app->register(\LaravelMigrationGenerator\LaravelMigrationGeneratorProvider::class);  

Usage

Whenever you have database changes or are ready to squash your database structure down to migrations, run:

php artisan generate:migrations

By default, the migrations will be created in tests/database/migrations. You can specify a different path with the --path option:

php artisan generate:migrations --path=database/migrations

You can specify the connection to use as the database with the --connection option:

php artisan generate:migrations --connection=mysql2

You can also clear the directory with the --empty-path option:

php artisan generate:migrations --empty-path

This command can also be run by setting the LMG_RUN_AFTER_MIGRATIONS environment variable to true and running your migrations as normal. This will latch into the MigrationsEnded event and run this command using the default options specified via your environment variables. Note: it will only run when your app environment is set to local.

Configuration

Want to customize the migration stubs? Make sure you've published the vendor assets with the artisan command to publish vendor files above.

Environment Variables

Stubs

There is a default stub for tables and views, found in resources/stubs/vendor/laravel-migration-generator/. Each database driver can be assigned a specific migration stub by creating a new stub file in resources/stubs/vendor/laravel-migration-generator/ with a driver-prefix, e.g. mysql-table.stub for a MySQL specific table stub.

Stub Naming

Table and view stubs can be named using the LMG_(TABLE|VIEW)_NAMING_SCHEME environment variables. Optionally, driver-specific naming schemes can be used as well by specifying LMG_{driver}_TABLE_NAMING_SCHEME environment vars using the same tokens. See below for available tokens that can be replaced.

Table Name Stub Tokens

Table stubs have the following tokens available for the naming scheme:

Table Schema Stub Tokens

Table schema stubs have the following tokens available:

View Name Stub Tokens

View stubs have the following tokens available for the naming scheme:

View Schema Stub Tokens

View schema stubs have the following tokens available:

Example Usage

Given a database structure for a users table of:

CREATE TABLE `users` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `username` varchar(128) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `email` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `password` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `first_name` varchar(45) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `last_name` varchar(45) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `timezone` varchar(45) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT 'America/New_York',
  `location_id` int(10) unsigned NOT NULL,
  `deleted_at` timestamp NULL DEFAULT NULL,
  `remember_token` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `users_username_index` (`username`),
  KEY `users_first_name_index` (`first_name`),
  KEY `users_last_name_index` (`last_name`),
  KEY `users_email_index` (`email`),
  KEY `fk_users_location_id_index` (`location_id`)
  CONSTRAINT `users_location_id_foreign` FOREIGN KEY (`location_id`) REFERENCES `locations` (`id`) ON UPDATE CASCADE ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci

A tests/database/migrations/[TIMESTAMP]_create_users_table.php with the following Blueprint would be created:

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateUsersTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('users', function (Blueprint $table) {
            $table->increments('id');
            $table->string('username', 128)->nullable()->index();
            $table->string('email', 255)->index();
            $table->string('password', 255);
            $table->string('first_name', 45)->nullable()->index();
            $table->string('last_name', 45)->index();
            $table->string('timezone', 45)->default('America/New_York');
            $table->unsignedInteger('location_id');
            $table->softDeletes();
            $table->string('remember_token', 255)->nullable();
            $table->timestamps();
            $table->foreign('location_id', 'users_location_id_foreign')->references('id')->on('locations')->onUpdate('cascade')->onDelete('cascade');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('users');
    }
}

Currently Supported DBMS's

These DBMS's are what are currently supported for creating migrations from. Migrations created will, as usual, follow what database drivers Laravel migrations allow for

• MySQL
• Postgres
• SQLite
• SQL Server