func row2mapStr(rows *core.Rows, fields []string) (resultsMap map[string]string, err error) {
result := make(map[string]string)
scanResultContainers := make([]interface{}, len(fields))
for i := 0; i < len(fields); i++ {
var scanResultContainer interface{}
scanResultContainers[i] = &scanResultContainer
}
if err := rows.Scan(scanResultContainers...); err != nil {
return nil, err
}
for ii, key := range fields {
rawValue := reflect.Indirect(reflect.ValueOf(scanResultContainers[ii]))
//if row is null then ignore
if rawValue.Interface() == nil {
//fmt.Println("ignore ...", key, rawValue)
continue
}
if data, err := value2String(&rawValue); err == nil {
result[key] = data
} else {
return nil, err // !nashtsai! REVIEW, should return err or just error log?
}
}
return result, nil
}
func rows2maps(rows *core.Rows) (resultsSlice []map[string][]byte, err error) {
fields, err := rows.Columns()
if err != nil {
return nil, err
}
for rows.Next() {
result, err := row2map(rows, fields)
if err != nil {
return nil, err
}
resultsSlice = append(resultsSlice, result)
}
return resultsSlice, nil
}
func arrangeResult(rows *core.Rows, name string) (interface{}, error) {
columnNames, err := rows.Columns()
series := seriesStruct{}
series.Columns = columnNames
series.Name = name
for rows.Next() {
columnValues := make([]interface{}, len(columnNames))
err = rows.ScanSlice(&columnValues)
if err != nil {
return nil, err
}
// bytes -> string
for i := range columnValues {
switch columnValues[i].(type) {
case []byte:
columnValues[i] = fmt.Sprintf("%s", columnValues[i])
}
}
series.Values = append(series.Values, columnValues)
}
return series, err
}