Dynamic Model for Laravel

Normally, each model in Laravel is written for only one table, and it's not so easy to break this convention. This is for a good reason - it ensures a well-designed and clean model. But in very specific cases, you may need to handle multiple tables via a single model. Here Laravel Dynamic Model comes into play! It provides you with an eloquent model which finally can handle multiple tables and if you want also multiple database connections!

Installation

Dependencies

This package depends on Doctrine/DBAL, so make sure you have it installed.

composer require doctrine/dbal

Package

composer require laracraft-tech/laravel-dynamic-model

Usage

Let's create some dummy tables:

---

php artisan make:migration create_foo_table
php artisan make:migration create_bar_table

Create migrations for the tables:

Schema::create('foo', function (Blueprint $table) {
    $table->id();
    $table->string('col1');
    $table->integer('col2');
    $table->timestamps();
});

Schema::create('bar', function (Blueprint $table) {
    $table->date('period')->primary();
    $table->string('col1');
    $table->integer('col2');
    $table->timestamps();
});

php artisan migrate

Let's create a Dynamic Model

---

If you want to create a Dynamic Model then you have to use the DynamicModelFactory. The Factory ensures, that the table and optionally the connection gets set for your new created model. Also it checks the schema of your provided table to set the propper values for: primaryKey, keyType, incrementing. Means, also if you defined your table schema to have a primary key called for instance period with a date type, the Factory will handle it for you.

Note that the default DynamicModel is set to unguarded. If you do not like this or you want your Dynamic Models have some custom functions, check the section below and create your own Dynamic Model.

use LaracraftTech\LaravelDynamicModel\DynamicModel;
use LaracraftTech\LaravelDynamicModel\DynamicModelFactory;

$foo = app(DynamicModelFactory::class)->create(DynamicModel::class, 'foo');

$foo->create([
    'col1' => 'asdf',
    'col2' => 123
]);

$faz = app(DynamicModelFactory::class)->create(DynamicModel::class, 'faz');

$faz->create([
    'period' => '2023-01-01',
    'col1' => 'asdf',
    'col2' => 123
]);

// optionally use another db connection (this one must be defined in your config/database.php file)
$fooOtherDB = app(DynamicModelFactory::class)->create(DynamicModel::class, 'foo', 'mysql2');
$fooOtherDB->create([...]);

dump($foo->first());
dump($faz->first());
dump($fooOtherDB->first());

Which gives you:

^ LaracraftTech\LaravelDynamicModel\DynamicModel_mysql_foo {#328 ▼
  #connection: "mysql"
  #table: "foo"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #attributes: array:5 [▼
    "id" => 1
    "col1" => "asdf"
    "col2" => 123
    "created_at" => "2023-03-22 15:34:22"
    "updated_at" => "2023-03-22 15:34:22"
  ]
}

^ LaracraftTech\LaravelDynamicModel\DynamicModel_mysql_faz {#328 ▼
  #connection: "mysql"
  #table: "faz"
  #primaryKey: "period"
  #keyType: "string"
  +incrementing: false
  #attributes: array:5 [▼
    "period" => "2023-01-01"
    "col1" => "asdf"
    "col2" => 123
    "created_at" => "2023-03-22 15:34:22"
    "updated_at" => "2023-03-22 15:34:22"
  ]
}

^ LaracraftTech\LaravelDynamicModel\DynamicModel_mysql2_foo {#328 ▼
  #connection: "mysql2"
  #table: "foo"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #attributes: array:5 [▼
    "id" => 1
    "col1" => "asdf"
    "col2" => 123
    "created_at" => "2023-03-22 15:34:22"
    "updated_at" => "2023-03-22 15:34:22"
  ]
}

Use your own Dynamic Model

---

If you need to add custom methods to your Dynamic Model or maybe guard it, you can just create your own Eloquent model and then call it through the Factory. This will create a new Model instance, which is extended by your original model. Make sure your model is implementing the DynamicModelInterface or is extended by the DynamicModel class.

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use LaracraftTech\LaravelDynamicModel\DynamicModel;
use LaracraftTech\LaravelDynamicModel\DynamicModelInterface;

// class MyDynamicModel extends Model implements DynamicModelInterface (this would also work)
class MyDynamicModel extends DynamicModel
{
    proteced $guarded = ['id'];

    public function doSomething()
    {
        // do something
    }
}

$foo = app(DynamicModelFactory::class)->create(MyDynamicModel::class, 'foo');

$foo->create([
    'col1' => 'asdf',
    'col2' => 123
]);

$foo->doSomething();

dd($foo->first());

Which gives you:

^ App\Model\MyDynamicModel_mysql_foo {#328 ▼
  #connection: "mysql"
  #table: "foo"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #attributes: array:5 [▼
    "id" => 1
    "col1" => "asdf"
    "col2" => 123
    "created_at" => "2023-03-22 15:34:22"
    "updated_at" => "2023-03-22 15:34:22"
  ]
  ...
}

Testing

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

Credits

• Zacharias Creutznacher
• All Contributors

License

The MIT License (MIT). Please see License File for more information.