Fix Laravel Auditing

audit.blade.php

<?php
$smartAudit = new \App\SmartAudit($audit);
?>
@if (count($smartAudit->modifiedKeys))
    <!-- Card -->
    <div class="card">
        <div class="card-header">
            <span>
                {{ Str::ucfirst(__("{$audit->event} by")) }}&nbsp;
                <b>{{ $audit->user ? $audit->user->name : __('Unknown') }}</b>&nbsp;
                <small class="text-muted">
                    - {{ $audit->created_at->format('F j, Y g:i A') }}
                </small>
                <small class="text-muted">
                    ({{ $audit->created_at->diffForHumans() }})
                </small>
            </span>
        </div>
        <div class="card-body">
            <div class="table-responsive">
                <table class="table table-bordered">
                    <thead>
                        <tr>
                            <th style="width: 150px;">{{ __('Attribute') }}</th>
                            <th>
                                <div class="row">
                                    <div class="col-6">{{ __('Old') }}</div>
                                    <div class="col-6">{{ __('New') }}</div>
                                </div>
                            </th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach ($smartAudit->modifiedKeys as $attribute)
                            <tr>
                                <td>
                                    <strong>@lang('auditable.field.'.$attribute)</strong>
                                </td>
                                <td>
                                    <table class="w-100">
                                        <td style="width: 50%; background: #ffe9e9;">
                                            {{ optional($smartAudit->oldModel)->displayAuditField($attribute) }}
                                        </td>
                                        <td style="background: #e9ffe9;">
                                            {{ optional($smartAudit->newModel)->displayAuditField($attribute) }}
                                        </td>
                                    </table>
                                </td>
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>
        </div>
    </div>

    <!-- Card -->
    <div class="card">
        <div class="card-header">{{ __('Metadata') }}</div>
        <div class="card-body">
            <table class="table table-bordered table-striped">
                <thead>
                    <th style="width: 150px;">
                        {{ __('Meta') }}
                    </th>
                    <th>
                        {{ __('Info') }}
                    </th>
                </thead>
                <tbody>
                    <tr>
                        <td>
                            {{ __('IP address') }}
                        </td>
                        <td>
                            {{ $audit->ip_address }}
                        </td>
                    </tr>
                    <tr>
                        <td>
                            {{ __('User agent') }}
                        </td>
                        <td>
                            {{ $audit->user_agent }}
                        </td>
                    </tr>
                    <tr>
                        <td>
                            {{ __('URL') }}
                        </td>
                        <td>
                            {{ $audit->url }}
                        </td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>
@endif

SmartAudit.php

<?php

namespace App;

use OwenIt\Auditing\Contracts\Audit;
use Illuminate\Database\Eloquent\Model;

class SmartAudit
{
    /**
     * @var array
     */
    public $modifiedKeys;

    /**
     * @var array
     */
    public $modified;

    /**
     * @var \Illuminate\Database\Eloquent\Model
     */
    public $oldModel;

    /**
     * @var \Illuminate\Database\Eloquent\Model
     */
    public $newModel;

    /**
     * @var \OwenIt\Auditing\Contracts\Audit
     */
    public $audit;

    /**
     * @param \OwenIt\Auditing\Contracts\Audit $audit
     */
    public function __construct(Audit $audit)
    {
        $this->audit = $audit;
        $auditableClassName = get_class($audit->auditable);

        // Modified Auditable attributes
        $this->modifiedKeys = [];
        $this->modified = [];

        if (count($audit->new_values)) {
            $this->newModel = new $auditableClassName();
            $this->newModel->setRawAttributes($audit->new_values, true);
            foreach ($audit->new_values as $attribute => $value) {
                $this->modified[$attribute]['new'] = $value;
            }
        }

        if (count($audit->old_values)) {
            $this->oldModel = new $auditableClassName();
            $this->oldModel->setRawAttributes($audit->old_values, true);
            foreach ($audit->old_values as $attribute => $value) {
                $this->modified[$attribute]['old'] = $value;
            }
        }
        $this->modifiedKeys = array_keys($this->modified);
    }
}