Merge pull request #71 from whywaita/feat/mysql-loc

fix MySQL timezone to UTC

pkg/datastore/mysql/mysql.go

@@ -2,6 +2,9 @@ package mysql
 
 import (
 	"fmt"
+	"time"
+
+	"github.com/go-sql-driver/mysql"
 
 	"github.com/jmoiron/sqlx"
 
@@ -16,7 +19,12 @@ type MySQL struct {
 
 // New create mysql connection
 func New(dsn string) (*MySQL, error) {
-	conn, err := sqlx.Open("mysql", dsn+"?parseTime=true&loc=Local")
+	u, err := getMySQLURL(dsn)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get MySQL URL: %w", err)
+	}
+
+	conn, err := sqlx.Open("mysql", u)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create mysql connection: %w", err)
 	}
@@ -25,3 +33,22 @@ func New(dsn string) (*MySQL, error) {
 		Conn: conn,
 	}, nil
 }
+
+func getMySQLURL(dsn string) (string, error) {
+	c, err := mysql.ParseDSN(dsn)
+	if err != nil {
+		return "", fmt.Errorf("failed to parse DSN: %w", err)
+	}
+
+	c.Loc = time.UTC
+	c.ParseTime = true
+	c.Collation = "utf8mb4_general_ci"
+	if c.Params == nil {
+		c.Params = map[string]string{}
+	}
+	c.Params["sql_mode"] = "'TRADITIONAL,NO_AUTO_VALUE_ON_ZERO,ONLY_FULL_GROUP_BY'"
+
+	c.InterpolateParams = true
+
+	return c.FormatDSN(), nil
+}