// ScanOne is to set a extracted data into parameter variable
func (ms *MS) ScanOne(x interface{}) bool {
//defer tm.Track(time.Now(), "ScanOne()")
//ScanOne() took 5.23µs
if ms.Err != nil {
lg.Errorf("ScanOne(): ms.Err has error: %s", ms.Err)
return false
}
//e.g. v = person Person
v := reflect.ValueOf(x)
if v.Kind() != reflect.Ptr || v.IsNil() {
ms.Err = errors.New("parameter is not valid. it should be pointer and not nil")
return false
}
// initialize variable
var values, scanArgs []interface{}
if v.Elem().Kind() == reflect.Struct {
//create container to set scaned record on database
values, scanArgs = makeScanStructArgs(v.Elem().Type())
//check len(value) and column
validateStructAndColumns(ms, values)
if ms.Err != nil {
return false
}
}
// rows.Next()
ret := ms.Rows.Next()
if !ret {
//data is nothing
return false
}
if v.Elem().Kind() == reflect.Struct {
// rows.Scan()
ms.Err = ms.Rows.Scan(scanArgs...)
if ms.Err != nil {
return false
}
//ms.Err = ms.Rows.Scan(v)
scanStruct(values, v.Elem())
} else {
// rows.Scan()
ms.Err = ms.Rows.Scan(x)
if ms.Err != nil {
return false
}
//scanValue(values[0], v.Elem())
}
return true
}
func connection() {
c := conf.GetConf().Cassa
hosts := []string{c.Host}
//port := 9042
err := New(hosts, int(c.Port), c.KeySpace)
if err != nil {
lg.Errorf("New() error: %s", err)
}
}
//open browser on PC
func openBrowser(ths []th.Info) {
for _, t := range ths {
//during test, it doesn't work.
//open browser error: exec: "open": executable file not found in $PATH
//out, err := exec.Command("open /Applications/Google\\ Chrome.app", fmt.Sprintf("http://eikaiwa.dmm.com/teacher/index/%d/", id)).Output()
err := exec.Command("open", fmt.Sprintf("http://eikaiwa.dmm.com/teacher/index/%d/", t.ID)).Start()
if err != nil {
//panic(fmt.Sprintf("open browser error: %v", err))
lg.Errorf(fmt.Sprintf("open browser error: %v", err))
}
}
}
// SelectIns is to get rows and return db instance
func (ms *MS) SelectIns(selectSQL string, args ...interface{}) *MS {
defer tm.Track(time.Now(), "SelectIns()")
//SelectSQLAllFieldIns() took 471.577µs
//If no args, set nil
//1. create sql and exec
//rows, err := self.db.Query("SELECT * FROM t_users WHERE delete_flg=?", "0")
ms.Rows, ms.Err = ms.DB.Query(selectSQL, args...)
if ms.Err != nil {
lg.Errorf("SelectSQLAllFieldIns()->ms.DB.Query():error is %s, \n %s", ms.Err, selectSQL)
}
return ms
}
// Save is to save data on Redis
func (rd *StoreRedis) Save(newData string) bool {
lg.Debug("Using Redis")
//close
//defer rd.RD.Close()
c := rd.RD.Conn
val, err := redis.String(c.Do("GET", redisKey))
if err != nil {
lg.Errorf("redis error is %s\n", err)
}
lg.Debugf("new value is %s, old value is %s\n", newData, val)
if err != nil || newData != val {
//save
c.Do("SET", redisKey, newData)
return true
}
return false
}
// Scan is to set all extracted data into parameter variable
func (ms *MS) Scan(x interface{}) bool {
//defer tm.Track(time.Now(), "Scan()")
//Scan() took 465.971µs
if ms.Err != nil {
lg.Errorf("Scan(): ms.Err has error: %s", ms.Err)
return false
}
//e.g. v = persons []Person
v := reflect.ValueOf(x)
if v.Kind() != reflect.Ptr || v.IsNil() {
ms.Err = errors.New("parameter is not valid. it should be pointer and not nil")
return false
}
if v.Elem().Kind() == reflect.Slice || v.Elem().Kind() == reflect.Array {
elemType := v.Elem().Type().Elem() //reflects_test.TeacherInfo
newElem := reflect.New(elemType).Elem()
var values, scanArgs []interface{}
if newElem.Kind() == reflect.Struct {
//create container to set scaned record on database
values, scanArgs = makeScanStructArgs(newElem.Type())
} else {
// Note! Only one filed
values = make([]interface{}, 1)
scanArgs = make([]interface{}, 1)
scanArgs[0] = &values[0]
}
//check len(value) and column
validateStructAndColumns(ms, values)
if ms.Err != nil {
return false
}
// rows.Next()
cnt := 0
for ms.Rows.Next() {
ms.Err = ms.Rows.Scan(scanArgs...)
if ms.Err != nil {
return false
}
if newElem.Kind() == reflect.Struct {
scanStruct(values, newElem)
} else {
scanValue(values[0], newElem)
}
v.Elem().Set(reflect.Append(v.Elem(), newElem))
cnt++
}
if cnt == 0 {
return false
}
return true
}
ms.Err = errors.New("parameter is not valid. it should be pointer and not nil")
return false
}