krafthaus/bauhaus

<?php

namespace KraftHaus\Bauhaus\Field;

/**
 * This file is part of the KraftHaus Bauhaus package.
 *
 * (c) KraftHaus <hello@krafthaus.nl>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

use KraftHaus\Bauhaus\Field\BaseField;
use Illuminate\Support\Facades\View;

/**
 * Class SelectField
 * @package KraftHaus\Bauhaus\Field
 */
class SelectPolymorphicField extends SelectField
{

    protected $view = 'krafthaus/bauhaus::models.fields._select';

    /**
     * Holds the display field name.
     * @var string
     */
    protected $displayField = null;

    /**
     * Set the display field name.
     *
     * @param  string $displayField
     *
     * @access public
     * @return BelongsToField
     */
    public function display($displayField)
    {
        $this->displayField = $displayField;
        return $this;
    }

    /**
     * Get the display field name.
     *
     * @access public
     * @return string
     */
    public function getDisplayField()
    {
        return $this->displayField;
    }

    /**
     * Override the parent renderer to set the polymorphic options.
     *
     * @access public
     * @return mixed|string
     */
    public function render()
    {
        $baseModel = $this->getAdmin()->getModel();
        $baseModel = $baseModel::find($this->getAdmin()->getFormBuilder()->getIdentifier());

        if (!$baseModel) {
            $baseModel = $this->getAdmin()->getModel();
            $baseModel = new $baseModel;
        }

        $relatedModel = $baseModel->{$this->getName()}()->getRelated();

        if (isset($baseModel->{$this->getName()}[0])) {
            $this->setValue($baseModel->{$this->getName()}[0]->id);
        }

        $options = [];
        foreach ($relatedModel::all() as $option) {
            $options[$option->id] = $option->path;
        }

        $this->options($options);

        return parent::render();
    }

    /**
     * Post update hook.
     *
     * @param  array $input
     *
     * @access public
     * @return void
     */
    public function postUpdate($input)
    {
        $baseModel = $this->getAdmin()->getModel();
        $baseModel = $baseModel::find($this->getAdmin()->getFormBuilder()->getIdentifier());

        $morphType = $baseModel->{$this->getName()}()->getMorphType();
        $morphType = str_replace(sprintf('%s.', $this->getName()), '', $morphType);

        $foreignKey = $baseModel->{$this->getName()}()->getForeignKey();
        $foreignKey = str_replace(sprintf('%s.', $this->getName()), '', $foreignKey);

        // remove old polymorphic relations
        foreach ($baseModel->{$this->getName()} as $item) {
            $item->update([
                $foreignKey => 0,
                $morphType  => '',
            ]);
        }

        // update new item with polymorphic relation
        $baseModel->{$this->getName()}()
            ->getRelated()
            ->where($items->getKeyName(), $input[$this->getName()])
            ->update([
                $foreignKey => $this->getAdmin()->getFormBuilder()->getIdentifier(),
                $morphType  => get_class($baseModel),
            ]);
    }

}