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mysql.go
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mysql.go
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package main
import (
"database/sql"
"os"
_ "github.com/go-sql-driver/mysql"
"github.com/joho/godotenv"
)
//Mysql ----------------------------------------------------------
type Mysql struct {
DB *sql.DB
execute mysqlExecute
getStr mysqlGetStr
getStrAry mysqlGetStrAry
}
//mysql constructor
func newMysql() (mysql Mysql, err error) {
err = godotenv.Load("../mysql.env")
if err != nil {
return mysql, err
}
DB, err := sql.Open("mysql", os.Getenv("ID")+":"+os.Getenv("PS")+"@tcp("+os.Getenv("ENDPOINT")+":"+os.Getenv("PORT")+")/"+os.Getenv("SCHEMA")+"?multiStatements=true")
if err != nil {
return mysql, err
}
err = DB.Ping()
if err != nil {
return mysql, err
}
mysql.DB = DB
mysql.execute.DB = DB
mysql.getStr.DB = DB
mysql.getStrAry.DB = DB
return mysql, nil
}
//mysql.execute
type mysqlExecute struct {
DB *sql.DB
}
//mysql.execute.query
func (mysql *mysqlExecute) query(queryStr string) (err error) {
_, err = mysql.DB.Exec(queryStr)
if err != nil {
return err
}
return nil
}
type mysqlGetStr struct {
DB *sql.DB
}
//mysql.getStr.paymentIDFromUID
func (mysql *mysqlGetStr) paymentIDFromUID(UIDStr string) (paymentIDStr string, err error) {
rows, err := mysql.DB.Query(`SELECT * FROM adiy.firebase_uid WHERE uid = "` + UIDStr + `"`)
if err != nil {
return "", err
}
for rows.Next() {
err = rows.Scan(&UIDStr, &paymentIDStr)
if err != nil {
panic(err.Error())
}
}
return paymentIDStr, nil
}
//mysql.getStrAry
type mysqlGetStrAry struct {
DB *sql.DB
}
//mysql.getStrAry.query
func (mysql *mysqlGetStrAry) query(queryStr string) (resStrAry []string, err error) {
rows, err := mysql.DB.Query(queryStr)
if err != nil {
return nil, err
}
columns, err := rows.Columns()
if err != nil {
return nil, err
}
return columns, nil
}