TYPO3 / TYPO3.CMS

        $resultArray = $this->mergeChildReturnIntoExistingResult($resultArray, $childArray);

        // If this is a new record, add a pid value to store this record and the pointer value for the intermediate table

        if ($childData['command'] === 'new') {

            $comboFormFieldName = 'data[' . $childData['tableName'] . '][' . $childData['databaseRow']['uid'] . '][pid]';

            $resultArray['html'] .= '<input type="hidden" name="' . htmlspecialchars($comboFormFieldName) . '" value="' . htmlspecialchars($childData['databaseRow']['pid']) . '" />';

        }

        // If the foreign_selector field is also responsible for uniqueness, tell the browser the uid of the "other" side of the relation

        if ($childData['command'] === 'new' || $parentConfig['foreign_unique'] === $parentConfig['foreign_selector']) {

            $parentFormFieldName = 'data' . $appendFormFieldNames . '[' . $parentConfig['foreign_selector'] . ']';

            $resultArray['html'] .= '<input type="hidden" name="' . htmlspecialchars($comboFormFieldName) . '" value="' . htmlspecialchars($childData['databaseRow']['pid']) . '" />';

        }

        // If the foreign_selector field is also responsible for uniqueness, tell the browser the uid of the "other" side of the relation

        if ($childData['command'] === 'new' || $parentConfig['foreign_unique'] === $parentConfig['foreign_selector']) {

            $parentFormFieldName = 'data' . $appendFormFieldNames . '[' . $parentConfig['foreign_selector'] . ']';

            $resultArray['html'] .= '<input type="hidden" name="' . htmlspecialchars($parentFormFieldName) . '" value="' . htmlspecialchars($childData['databaseRow']['uid']) . '" />';

        }

        return $resultArray;

    }