crater/app/Models/Unit.php

<?php

namespace Crater\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Unit extends Model
{
    use HasFactory;

    protected $fillable = ['name', 'company_id'];

    public function items()
    {
        return $this->hasMany(Item::class);
    }

    public function company()
    {
        return $this->belongsTo(Company::class);
    }

    public function scopeWhereCompany($query)
    {
        $query->where('company_id', request()->header('company'));
    }

    public function scopeWhereUnit($query, $unit_id)
    {
        $query->orWhere('id', $unit_id);
    }

    public function scopeWhereSearch($query, $search)
    {
        return $query->where('name', 'LIKE', '%'.$search.'%');
    }

    public function scopeApplyFilters($query, array $filters)
    {
        $filters = collect($filters);

        if ($filters->get('search')) {
            $query->whereSearch($filters->get('search'));
        }

        if ($filters->get('unit_id')) {
            $query->whereUnit($filters->get('unit_id'));
        }

        if ($filters->get('company_id')) {
            $query->whereCompany($filters->get('company_id'));
        }

        return $query;
    }

    public function scopePaginateData($query, $limit)
    {
        if ($limit == 'all') {
            return $query->get();
        }

        return $query->paginate($limit);
    }
}