Price Filter in Advanced Search with Tier Prices fix

[Seppmann]

Hi there,

M2.3.4-p2, Elasticsuite Version 2.10.10

Issue
I encountered that in "advanced search" the price filter will return also products that are not in the price range, when there are different customerGroups with different Tier Prices.

Expected
"advanced search" price filter should return only products that are in the price range (respecting customerGroups individual Tier prices).

Solution
The conditions used for the price range in

\Smile\ElasticsuiteCore\Search\Request\Query\Filter\QueryBuilder -> prepareFieldCondition

should be the ones used in the layered navigation price filter (here cutomerGroups are respected in the filtering as it should).

So as a fix I've rewritten the
\Smile\ElasticsuiteCore\Search\Request\Query\Filter\QueryBuilder
class and added the getRangeCondition method (originally found in Smile\ElasticsuiteCatalog\Model\Layer\Filter\Price).

In prepareFieldCondition method I use the getRangeCondition method then if user filters in advanced search by price. Like

        $condition['field'] = $field->getMappingProperty(FieldInterface::ANALYZER_UNTOUCHED);

        if($condition['field'] == 'price.price') {
            $query = $this->getRangeCondition($condition['bounds']);
        }
        else {
            if ($condition['field'] === null || isset($condition['queryText'])) {

After that customerGroups in advanced search price range filter are respected and only products in price range are shown.

I dont know if my solution is the best way to fix the issue. If you have better solutions/suggestions, please let me know!

Thanks and best regards

Sebastian