CoderFunda
  • Home
  • About us
    • Contact Us
    • Disclaimer
    • Privacy Policy
    • About us
  • Home
  • Php
  • HTML
  • CSS
  • JavaScript
    • JavaScript
    • Jquery
    • JqueryUI
    • Stock
  • SQL
  • Vue.Js
  • Python
  • Wordpress
  • C++
    • C++
    • C
  • Laravel
    • Laravel
      • Overview
      • Namespaces
      • Middleware
      • Routing
      • Configuration
      • Application Structure
      • Installation
    • Overview
  • DBMS
    • DBMS
      • PL/SQL
      • SQLite
      • MongoDB
      • Cassandra
      • MySQL
      • Oracle
      • CouchDB
      • Neo4j
      • DB2
      • Quiz
    • Overview
  • Entertainment
    • TV Series Update
    • Movie Review
    • Movie Review
  • More
    • Vue. Js
    • Php Question
    • Php Interview Question
    • Laravel Interview Question
    • SQL Interview Question
    • IAS Interview Question
    • PCS Interview Question
    • Technology
    • Other

16 February, 2022

Generate Migrations from an Existing Database With the Migration Generator Package

 Programing Coderfunda     February 16, 2022     Laravel, Packages, php     No comments   


Laravel Migration Generator

Migration Generator for Laravel is a package by Bennett Treptow to generate migrations from existing database structures:

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.

This package could be helpful if you are porting an existing application into Laravel and want to re-create the database migrations for the application to help with development and testing.

To visualize how this process works, the readme has example usage which defines the following users table:

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

Using this package, you can run the following command to generate a blueprint class based on the table definition:

php artisan generate:migrations

And the derived blueprint from the users table would look as follows according to the example:

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');
}
}

The package also comes with various table and view migration stubs and configuration settings. For example, a configuration defining the filename patterns used to generate table schema:

return [
'table_naming_scheme' => '[Timestamp]_create_[TableName]_table.php',
// ...
];

At the time of writing the package supports MySQL, but could also support Postgres, SQLite, and SQL Server according the the readme.

You can learn more about this package, get full installation instructions, and view the source code on GitHub.

  • Share This:  
  •  Facebook
  •  Twitter
  •  Google+
  •  Stumble
  •  Digg
Email ThisBlogThis!Share to XShare to Facebook
Newer Post Older Post Home

0 comments:

Post a Comment

Thanks

Meta

Popular Posts

  • JqueryUI Tutorial
    JqueryUI Tutorial    JqueryUI is the most popular front end frameworks currently. It is sleek, intuitive, and powerful mobile first fr...
  • Laravel - Application Structure
    The application structure in Laravel is basically the structure of folders, sub-folders and files included in a project. Once we create a ...
  • Laravel - Installation
    For managing dependencies, Laravel uses   composer . Make sure you have a Composer installed on your system before you install Laravel. In...
  • Python Tutorial
      Python   is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. It was created by Guido van...
  • Vue.js Tutorial
      Vue.js Installation Compatibility Check Before going to install and use Vue.js in your project, you should check the compatibility issues....

Categories

  • Ajax (26)
  • Bootstrap (30)
  • DBMS (42)
  • HTML (12)
  • HTML5 (45)
  • JavaScript (10)
  • Jquery (34)
  • Jquery UI (2)
  • JqueryUI (32)
  • Laravel (1017)
  • Laravel Tutorials (23)
  • Laravel-Question (6)
  • Magento (9)
  • Magento 2 (95)
  • MariaDB (1)
  • MySql Tutorial (2)
  • PHP-Interview-Questions (3)
  • Php Question (13)
  • Python (36)
  • RDBMS (13)
  • SQL Tutorial (79)
  • Vue.js Tutorial (69)
  • Wordpress (150)
  • Wordpress Theme (3)
  • codeigniter (108)
  • oops (4)
  • php (853)

Social Media Links

  • Follow on Twitter
  • Like on Facebook
  • Subscribe on Youtube
  • Follow on Instagram

Pages

  • Home
  • Contact Us
  • Privacy Policy
  • About us

Blog Archive

  • July (4)
  • September (100)
  • August (50)
  • July (56)
  • June (46)
  • May (59)
  • April (50)
  • March (60)
  • February (42)
  • January (53)
  • December (58)
  • November (61)
  • October (39)
  • September (36)
  • August (36)
  • July (34)
  • June (34)
  • May (36)
  • April (29)
  • March (82)
  • February (1)
  • January (8)
  • December (14)
  • November (41)
  • October (13)
  • September (5)
  • August (48)
  • July (9)
  • June (6)
  • May (119)
  • April (259)
  • March (122)
  • February (368)
  • January (33)
  • October (2)
  • July (11)
  • June (29)
  • May (25)
  • April (168)
  • March (93)
  • February (60)
  • January (28)
  • December (195)
  • November (24)
  • October (40)
  • September (55)
  • August (6)
  • July (48)
  • May (2)
  • January (2)
  • July (6)
  • June (6)
  • February (17)
  • January (69)
  • December (122)
  • November (56)
  • October (92)
  • September (76)
  • August (6)

Loading...

Laravel News

Loading...

Copyright © CoderFunda | Powered by Blogger
Design by Coderfunda | Blogger Theme by Coderfunda | Distributed By Coderfunda