# Models

To understand Models in detail, you can visit the Laravel documentation here (opens new window).

We are using the konekt/concord (opens new window) package, which is an extension of Laravel. It helps in building modular Laravel applications.

# Using Bagisto Package Generator

  • This command creates a new Post Model inside your package.

    php artisan package:make-model Post Webkul/Blog

  • This command creates the following files:

    • New model Post.php in the packages/Webkul/Blog/src/Models directory.
    • New model proxy PostProxy.php in the packages/Webkul/Blog/src/Models directory.
    • New model contract Post.php* in the packages/Webkul/Blog/src/Contracts directory.

# Using Laravel Artisan Command

Before creating the model class, we need to create two things: the Contract and the Proxy.

# Contract

Laravel's Contracts are a set of interfaces that define the core services provided by the framework. For example, the Illuminate\Contracts\Queue\Queue contract defines the methods needed for queueing jobs, while the Illuminate\Contracts\Mail\Mailer contract defines the methods needed for sending an email.

Each contract has a corresponding implementation provided by the framework. For example, Laravel provides a queue implementation with various drivers and a mailer implementation powered by SwiftMailer.

All Laravel contracts are stored in their own GitHub repository. This provides a quick reference for all available contracts and a single, decoupled package that can be used by package developers.

  • Now, create a folder named Contracts inside Webkul/Blog/src/ and create an interface file named Post.php.

    packages
└── Webkul
    └── Blog
        └── src
            ├── ...
            └── Contracts
                └── Post.php

  • Copy the following code into the Post.php file.

    <?php

namespace Webkul\Blog\Contracts;

interface Post
{
}

# Proxy

Proxies, as their name suggests, lead you to the actual model class. The concept of model proxies has been introduced to override the functionality of the existing Model. It is a type of model inheritance without creating a new table in the database.

  • Now, create a Models folder inside packages/Webkul/Blog/src/. Inside the Models folder, create a model proxy file named PostProxy.php. This Proxy class will extend Konekt\Concord\Proxies\ModelProxy.

    └── packages
    └── Webkul
        └── Blog
            └── src
                ├── ...
                ├── Contracts
                │   └── Post.php
                └── Models
                    └── PostProxy.php

  • Copy the following code into the PostProxy.php file.

    <?php

namespace Webkul\Blog\Models;

use Konekt\Concord\Proxies\ModelProxy;

class PostProxy extends ModelProxy
{
}

# Model

  • The simple way to create a model is to execute the make:model artisan command:

    php artisan make:model Post

  • Now, move your Post model from the project root directory (i.e., App/Models) to the packages/Webkul/Blog/src/Models folder.

    └── packages
    └── Webkul
        └── Blog
            └── src
                ├── ...
                ├── Contracts
                │   └── Post.php
                └── Models
                    ├── Post.php
                    └── PostProxy.php

  • Copy the following code into the Post.php file.

    <?php

namespace Webkul\Blog\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Webkul\User\Models\Admin;
use Webkul\Blog\Contracts\Post as PostContract;

class Post extends Model implements PostContract
{
   /**
    * The attributes that are mass assignable.
    *
    * @var $fillable
    */
    protected $fillable = [
        'title',
        'description',
        'user_id',
        'status'
    ];

   /**
    * Get the user that owns the post.
    */
    public function author(): BelongsTo
    {
        return $this->belongsTo(Admin::class, 'user_id');
    }
}

# Module Service Provider

  • Now, we need to create a provider named ModuleServiceProvider.php inside Webkul/Blog/src/Providers.

    └── packages
  └── Webkul
      └── Blog
          └── src
              ├── ...
              └── Providers
                  ├── BlogServiceProvider.php
                  └── ModuleServiceProvider.php

  • In this file, we register the models used in this package. You can see the code below.

    <?php

namespace Webkul\Blog\Providers;

use Konekt\Concord\BaseModuleServiceProvider;

class ModuleServiceProvider extends BaseModuleServiceProvider
{
    protected $models = [
        \Webkul\Blog\Models\Post::class,
    ];
}

  • Finally, register your ModuleServiceProvider.php in the config/concord.php file.

    <?php

return [
    'modules' => [
        // Other service providers
        \Webkul\Blog\Providers\ModuleServiceProvider::class,
    ]
];

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