Laravel SleepingOwlAdmin - Orderable trait with additional scope

gistfile1.txt

<?php 

namespace Admin\Models\Traits;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Builder;
use SleepingOwl\Admin\Traits\OrderableModel;

/**
 * Trait OrderableModel.
 * @method static $this orderModel()
 * @method Builder findByPosition($position)
 */
trait ProductOrderTrait
{
    use OrderableModel;

    /**
     * Move model up.
     */
    public function moveUp()
    {
        if ($this->getOrderValue() > 1) {
            $this->move(1);
        }
    }

    /**
     * Move model down.
     */
    public function moveDown()
    {
        if ($this->getOrderValue() < static::orderModel()->count()) {
            $this->move(-1);
        }
    }

    /**
     * Update order field on create.
     */
    protected function updateOrderFieldOnCreate()
    {
        $this->{$this->getOrderField()} = static::orderModel()->count()+1;
    }

    /**
     * Update order field on restore.
     */
    protected function updateOrderFieldOnRestore()
    {
        static::orderModel()
            ->where($this->getOrderField(), '>=', $this->getOrderValue())
            ->increment( $this->getOrderField() );
    }

    /**
     * REWRITE Order scope From ORDER Trait.
     *
     * @param $query
     *
     * @return mixed
     */
    public function scopeOrderModel($query)
    {
        return $query->where($this->getParentFieldName(), $this->{$this->getParentFieldName()})
            ->orderBy( $this->getOrderField() );
    }

    /**
     * Get order field name.
     * @return string
     */
    public function getOrderField()
    {
        return $this->orderField;
    }

    /**
     * Get parent field name.
     * @return string
     */
    public function getParentFieldName()
    {
        return $this->parentFieldName;
    }
}