productdataprovider.php

См. документацию.

<?php
 
namespace Bitrix\Catalog\Filter\DataProvider;
 
use Bitrix\Catalog\Filter\DataProvider\Currency\CurrencyListItems;
use Bitrix\Catalog\Filter\DataProvider\Measure\MeasureListItems;
use Bitrix\Catalog\Filter\DataProvider\Settings\ProductSettings;
use Bitrix\Catalog\Filter\PrefixableDataProviderTrait;
use Bitrix\Catalog\ProductTable;
use Bitrix\Iblock\Filter\DataProvider\Element\ElementFilterFields;
use Bitrix\Iblock\Filter\DataProvider\ElementDataProvider;
use Bitrix\Main\Filter\Field;
use Bitrix\Main\Loader;
use Bitrix\Main\Localization\Loc;
use Bitrix\Main\UI\Filter\Type;
 
Loader::requireModule('iblock');

class ProductDataProvider extends ElementDataProvider
{
    use MeasureListItems;
    use CurrencyListItems;
    use PrefixableDataProviderTrait;
 
    private const VARIATION_PREFIX = 'VARIATION_';
 
    private ?ElementFilterFields $variationFields;
 
    public function __construct(ProductSettings $settings)
    {
        parent::__construct($settings);
 
        $variationIblockId = $settings->getVariationIblockId();
        if ($variationIblockId > 0)
        {
            $this->variationFields = new ElementFilterFields($variationIblockId, false, false);
        }
    }
 
    private function isWithVariations(): bool
    {
        return isset($this->variationFields);
    }
 
    public function prepareFields()
    {
        $result = parent::prepareFields();
 
        $result['TYPE'] = $this->createField('TYPE', [
            'type' => 'list',
            'default' => false,
            'partial' => true,
        ]);
        $result['AVAILABLE'] = $this->createField('AVAILABLE', [
            'type' => 'checkbox',
            'default' => false,
        ]);
        $result['QUANTITY'] = $this->createField('QUANTITY', [
            'type' => 'number',
            'default' => false,
        ]);
        $result['QUANTITY_RESERVED'] = $this->createField('QUANTITY_RESERVED', [
            'type' => 'number',
            'default' => false,
        ]);
        $result['PURCHASING_PRICE'] = $this->createField('PURCHASING_PRICE', [
            'type' => 'number',
            'default' => false,
        ]);
        $result['PURCHASING_CURRENCY'] = $this->createField('PURCHASING_CURRENCY', [
            'type' => 'list',
            'default' => false,
            'partial' => true,
        ]);
        $result['WEIGHT'] = $this->createField('WEIGHT', [
            'type' => 'number',
            'default' => false,
        ]);
        $result['WIDTH'] = $this->createField('WIDTH', [
            'type' => 'number',
            'default' => false,
        ]);
        $result['LENGTH'] = $this->createField('LENGTH', [
            'type' => 'number',
            'default' => false,
        ]);
        $result['HEIGHT'] = $this->createField('HEIGHT', [
            'type' => 'number',
            'default' => false,
        ]);
        $result['MEASURE'] = $this->createField('MEASURE', [
            'type' => 'list',
            'default' => false,
            'partial' => true,
        ]);
 
        if ($this->isWithVariations())
        {
            $result += $this->prepareVariationElementFields();
        }
 
        return $result;
    }

    private function prepareVariationElementFields(): array
    {
        $result = [];
 
        /*
        $fields = $this->variationFields->getElementFieldsParams();
        foreach ($fields as $id => $params)
        {
            $result[$id] = $this->createField($id, $params);
        }
        */
 
        $properties = $this->variationFields->getElementPropertiesParams();
        foreach ($properties as $id => $params)
        {
            $result[$id] = $this->createField($id, $params);
        }
 
        $nameWithPrefixTemplate = Loc::getMessage('CATALOG_FILTER_PRODUCT_DATAPROVIDER_NAME_WITH_PREFIX');
 
        return $this->prepareFieldsByPrefix(self::VARIATION_PREFIX, $result, $nameWithPrefixTemplate);
    }

    public function prepareFieldData($fieldID)
    {
        if ($fieldID === 'PURCHASING_CURRENCY')
        {
            return [
                'items' => $this->getCurrencyListItems(),
            ];
        }
        elseif ($fieldID === 'MEASURE')
        {
            return [
                'items' => $this->getMeasureListItems(),
            ];
        }
        elseif ($fieldID === 'TYPE')
        {
            return [
                'items' => ProductTable::getProductTypes(true),
                'params' => [
                    'multiple' => true,
                ],
            ];
        }
 
        $result = parent::prepareFieldData($fieldID);
        if (isset($result))
        {
            return $result;
        }
 
        if ($this->isWithVariations())
        {
            return $this->prepareVariationFieldData($fieldID);
        }
 
        return null;
    }
 
    private function prepareVariationFieldData(string $fieldIdWithPrefix): ?array
    {
        $fieldID = $this->removePrefix(self::VARIATION_PREFIX, $fieldIdWithPrefix);
 
        return $this->variationFields->getPropertyDescription($fieldID);
    }

    protected function getFieldName($fieldID)
    {
        return Loc::getMessage('CATALOG_FILTER_PRODUCT_DATAPROVIDER_FIELD_' . $fieldID) ?? parent::getFieldName($fieldID);
    }

    public function prepareFilterValue(array $rawFilterValue): array
    {
        $rawFilterValue = parent::prepareFilterValue($rawFilterValue);
 
        if (!$this->isWithVariations() || empty($rawFilterValue))
        {
            return $rawFilterValue;
        }
 
        [$variationFilterValue, $rawFilterValue] = $this->splitPrefixFilterValues(self::VARIATION_PREFIX, $rawFilterValue);
 
        if (!empty($variationFilterValue))
        {
            $variationFilterValue = $this->variationFields->prepareFilterValue($variationFilterValue);
 
            $settings = $this->getSettings();
            $variationFilterValue['IBLOCK_ID'] = $settings->getVariationIblockId();
            $rawFilterValue['SUBQUERY'] = [
                'FIELD' => 'PROPERTY_' .  $settings->getLinkPropertyId(),
                'FILTER' => $variationFilterValue,
            ];
            unset($settings);
        }
 
        return $rawFilterValue;
    }
}