erpsaas/app/Models/Accounting/BudgetAllocation.php

<?php

namespace App\Models\Accounting;

use App\Casts\DocumentMoneyCast;
use App\Concerns\CompanyOwned;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class BudgetAllocation extends Model
{
    use CompanyOwned;
    use HasFactory;

    protected $fillable = [
        'company_id',
        'budget_item_id',
        'period',
        'interval_type',
        'start_date',
        'end_date',
        'amount',
    ];

    protected $casts = [
        'start_date' => 'date',
        'end_date' => 'date',
        'amount' => DocumentMoneyCast::class,
    ];

    public function budgetItem(): BelongsTo
    {
        return $this->belongsTo(BudgetItem::class);
    }
}