---

Laravel Model Tracker

A lightweight Laravel package to track changes in your models. Automatically logs all changes, including old values, new values, and the user responsible for the changes.

Features

• Automatically tracks changes in any Eloquent model.
• Stores old and new values of updated fields.
• Logs the user who made the change (if authenticated).
• Provides easy integration with a simple trait.
• Configurable to exclude fields from tracking.
• Includes a migration to store logs in a model_changes table.

Requirements

• Laravel 8.x or 9.x
• PHP 7.4 or higher

Installation

1. Install via Composer:

   composer require temistocle1998/laravel-model-tracker

2. Publish configuration and migration files:

   php artisan vendor:publish --tag=tracker-config
   php artisan migrate

3. Add the TracksChanges trait to your model:

   In any model where you want to track changes, simply include the TracksChanges trait:

   use Tracker\Traits\TracksChanges;
   
   class Product extends Model
   {
       use TracksChanges;
   }

Configuration

The package comes with a config file that can be customized to suit your needs. The configuration file can be found at config/tracker.php.

Example Config:

return [
    'enabled' => true, // Enable or disable the tracking
    'exclude_fields' => ['password', 'remember_token'], // Fields you don't want to track
];

Usage

Once the package is set up, any changes made to the models using the TracksChanges trait will automatically be logged. The logs are stored in the model_changes table.

Example of Change Logs

When a model is updated, the following log is created in the model_changes table:

model_type	model_id	user_id	changes	created_at
App\Models\Product	1	2	{"name": {"old_value": "Old Name", "new_value": "New Name"}}	2023-01-01 12:00:00

Retrieving Model Changes

You can fetch model changes using the ModelChange model.

use Tracker\Models\ModelChange;

// Get all changes for a specific model
$changes = ModelChange::where('model_type', 'App\Models\Product')
                      ->where('model_id', $productId)
                      ->get();

// Display the changes
foreach ($changes as $change) {
    echo $change->changes;
}

Displaying Changes in Your View

You can also display the changes in your views:

@foreach ($product->changes as $change)
    <p>Field: {{ $change['field'] }} | Old Value: {{ $change['old_value'] }} | New Value: {{ $change['new_value'] }}</p>
@endforeach

Contributing

Feel free to submit a pull request if you'd like to contribute to this package. All contributions are welcome!

License

This package is licensed under the MIT License. See the LICENSE file for details.