Ui/DataProvider/Downline/Grid.php
private function getBind()
    {
        [$dsBegin, $treeType] = $this->extractInput();
        $calcId = $this->getCalcId($dsBegin, $treeType);
        $bind = [
            QGrid::BND_CALC_ID => $calcId
        ];
        return $bind;
    }
private function getBind()
    {
        [$dsBegin, $treeType] = $this->extractInput();
        $calcId = $this->getCalcId($dsBegin, $treeType);
        $bind = [
            QGrid::BND_CALC_ID => $calcId
        ];
        return $bind;
    }
Analyze HTTP request, load data from DB to compose bind array with parameters for grid query.

@return array