> For the complete documentation index, see [llms.txt](https://waad-mawlood.gitbook.io/model-metadata/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://waad-mawlood.gitbook.io/model-metadata/basics/markdown-1/use-in-model.md).

# Use in Model

## Setup

```php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Waad\Metadata\Traits\HasManyMetadata;

class Post extends Model
{
    use HasManyMetadata;  // ----> use this trait
    
    // Enabled Append id with content metadata (default)
    public $metadataNameIdEnabled = true;

    // Custom Append key of id with metadata (default)
    public $metadataNameId = 'id';


    ..........
}

```

***

## Custom Append ID with Run Time

Using example [Get Metadata](/model-metadata/basics/markdown-1/get-metadata.md)

```php

// Enabled Append Id true
$model->setMetadataNameIdEnabled(true)->getMetadata();
/** will return:
* [
*     [
*        'id' => '01jj9s16xcze6byv94fv2f6gc5',   // <<<---------
*        'theme' => 'dark',
*        'language' => 'Arabic',
*     ],
*     [
*        'id' => '01jj9rwvm0g3sypyyb91v5x2gz',   // <<<---------
*        'theme' => 'light',
*        'language' => 'English',
*     ],
* ]
*/

// Enabled Append Id false
$model->setMetadataNameIdEnabled(false)->getMetadata();
/** will return:
* [
*     [
*        'theme' => 'dark',
*        'language' => 'Arabic',
*     ]
* ]
*/


// Enabled Append Id true and changed name of id
$model->setMetadataNameIdEnabled(true)->setMetadataNameId('no')->getMetadata();
/** will return:
* [
*     [
*        'no' => '01jj9s16xcze6byv94fv2f6gc5',    // <<<---------
*        'theme' => 'dark',
*        'language' => 'Arabic',
*     ]
* ]
*/


// Enabled Append Id false and changed name of id
$model->setMetadataNameIdEnabled(false)->setMetadataNameId('no')->getMetadata();
/** will return:
* [
*     [
*        'theme' => 'dark',
*        'language' => 'Arabic',
*     ]
* ]
*/

```