Pimcore\Model\Object\ClassDefinition\Data\Relations\AbstractRelations::load PHP Метод

    public function load($object, $params = [])
    {
        $db = Db::get();
        $data = null;
        if ($object instanceof Object\Concrete) {
            if (!method_exists($this, "getLazyLoading") or !$this->getLazyLoading() or array_key_exists("force", $params) && $params["force"]) {
                $relations = $db->fetchAll("SELECT * FROM object_relations_" . $object->getClassId() . " WHERE src_id = ? AND fieldname = ? AND ownertype = 'object'", [$object->getId(), $this->getName()]);
            } else {
                return null;
            }
        } elseif ($object instanceof Object\Fieldcollection\Data\AbstractData) {
            $relations = $db->fetchAll("SELECT * FROM object_relations_" . $object->getObject()->getClassId() . " WHERE src_id = ? AND fieldname = ? AND ownertype = 'fieldcollection' AND ownername = ? AND position = ?", [$object->getObject()->getId(), $this->getName(), $object->getFieldname(), $object->getIndex()]);
        } elseif ($object instanceof Object\Localizedfield) {
            if (isset($params["context"]) && $params["context"]["containerType"] == "fieldcollection") {
                $context = $params["context"];
                $fieldname = $context["fieldname"];
                $index = $context["index"];
                $filter = "/fieldcollection~" . $fieldname . "/" . $index . "/%";
                $relations = $db->fetchAll("SELECT * FROM object_relations_" . $object->getObject()->getClassId() . " WHERE src_id = ? AND fieldname = ? AND ownertype = 'localizedfield'  AND position = ? AND ownername LIKE ?", [$object->getObject()->getId(), $this->getName(), $params["language"], $filter]);
            } else {
                $relations = $db->fetchAll("SELECT * FROM object_relations_" . $object->getObject()->getClassId() . " WHERE src_id = ? AND fieldname = ? AND ownertype = 'localizedfield' AND ownername = 'localizedfield' AND position = ?", [$object->getObject()->getId(), $this->getName(), $params["language"]]);
            }
        } elseif ($object instanceof Object\Objectbrick\Data\AbstractData) {
            $relations = $db->fetchAll("SELECT * FROM object_relations_" . $object->getObject()->getClassId() . " WHERE src_id = ? AND fieldname = ? AND ownertype = 'objectbrick' AND ownername = ? AND position = ?", [$object->getObject()->getId(), $this->getName(), $object->getFieldname(), $object->getType()]);
            // THIS IS KIND A HACK: it's necessary because of this bug PIMCORE-1454 and therefore cannot be removed
            if (count($relations) < 1) {
                $relations = $db->fetchAll("SELECT * FROM object_relations_" . $object->getObject()->getClassId() . " WHERE src_id = ? AND fieldname = ? AND ownertype = 'objectbrick' AND ownername = ? AND (position IS NULL OR position = '')", [$object->getObject()->getId(), $this->getName(), $object->getFieldname()]);
            }
            // HACK END
        }
        // using PHP sorting to order the relations, because "ORDER BY index ASC" in the queries above will cause a
        // filesort in MySQL which is extremely slow especially when there are millions of relations in the database
        usort($relations, function ($a, $b) {
            if ($a["index"] == $b["index"]) {
                return 0;
            }
            return $a["index"] < $b["index"] ? -1 : 1;
        });
        $data = $this->getDataFromResource($relations, $object, $params);
        return $data;
    }