cascaded functions

evaluation.js

    if(utilities.validateFields(queryParameters, request) ) {
        // Query the database.
        console.log(deneme);
        db.executeSQL('SELECT * FROM tl_evaluation WHERE evaluation_id= ' +evaluation_id,queryParameters,sqlEndingClause,
        function (rows) {

                db.executeSQL('SELECT field_id, field_data_value AS value, field_option_id FROM tl_field_data WHERE entity_id = 1 AND entity_key_value= ' +evaluation_id ,queryParameters,sqlEndingClause,
                function (field_data) {

                        rows[0].field_data = field_data;

                        for(var i = 0; i < rows[0].field_data.length; i++)
                            rows[0].field_data[i].value = new Buffer( rows[0].field_data[i].value, 'binary' ).toString();

                        db.executeSQL('SELECT user_id FROM tl_evaluation_user_rl WHERE evaluation_id = ' +evaluation_id + " ORDER BY evaluation_role_id",queryParameters,sqlEndingClause,
                        function (roles) {

                                rows[0].observer_id = roles[0] != null ? roles[0].user_id : '';
                                rows[0].observed_id = roles[1] != null ? roles[1].user_id : '';
                                rows[0].reviewer_id = roles[2] != null ? roles[2].user_id : '0';

                                    db.executeSQL('SELECT u.user_name, u.avatar FROM tl_user u, tl_evaluation_user_rl rl WHERE rl.user_id = u.user_id and rl.evaluation_id = ' +evaluation_id,queryParameters,sqlEndingClause,
                                    function (users) {

                                        rows[0].users = users;
                                        //console.log(rows[0]);
                                        request.reply (JSON.stringify(rows[0]));

                                    });

                        });
                });
        });
    }