sqlx: add sqlxServent with help method for db transcation logic

internal/dao/sakila/authority.go

@@ -15,7 +15,7 @@ var (
 )
 
 type authorizationManageServant struct {
-	db               *sqlx.DB
+	*sqlxServant
 	stmtIdx          *sqlx.Stmt
 	stmtUpdateFriend *sqlx.Stmt
 }
@@ -52,7 +52,7 @@ func (s *authorizationManageServant) isFriend(userId int64, friendId int64) bool
 
 func newAuthorizationManageService(db *sqlx.DB) core.AuthorizationManageService {
 	return &authorizationManageServant{
-		db:               db,
+		sqlxServant:      newSqlxServant(db),
 		stmtIdx:          c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtUpdateFriend: c(`SELECT * FROM @person WHERE first_name=?`),
 	}

internal/dao/sakila/comments.go

@@ -16,13 +16,13 @@ var (
 )
 
 type commentServant struct {
-	db              *sqlx.DB
+	*sqlxServant
 	stmtGetComments *sqlx.Stmt
 	stmtGetReply    *sqlx.Stmt
 }
 
 type commentManageServant struct {
-	db              *sqlx.DB
+	*sqlxServant
 	stmtDelComments *sqlx.Stmt
 	stmtAddComents  *sqlx.Stmt
 }
@@ -95,7 +95,7 @@ func (s *commentManageServant) CreateCommentContent(content *core.CommentContent
 
 func newCommentService(db *sqlx.DB) core.CommentService {
 	return &commentServant{
-		db:              db,
+		sqlxServant:     newSqlxServant(db),
 		stmtGetComments: c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtGetReply:    c(`SELECT * FROM @person WHERE first_name=?`),
 	}
@@ -103,7 +103,7 @@ func newCommentService(db *sqlx.DB) core.CommentService {
 
 func newCommentManageService(db *sqlx.DB) core.CommentManageService {
 	return &commentManageServant{
-		db:              db,
+		sqlxServant:     newSqlxServant(db),
 		stmtAddComents:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtDelComments: c(`SELECT * FROM @person WHERE first_name=?`),
 	}

internal/dao/sakila/contacts.go

@@ -15,7 +15,7 @@ var (
 )
 
 type contactManageServant struct {
-	db            *sqlx.DB
+	*sqlxServant
 	stmtAddFriend *sqlx.Stmt
 	stmtDelFriend *sqlx.Stmt
 }
@@ -58,7 +58,7 @@ func (s *contactManageServant) IsFriend(userId int64, friendId int64) bool {
 
 func newContactManageService(db *sqlx.DB) core.ContactManageService {
 	return &contactManageServant{
-		db:            db,
+		sqlxServant:   newSqlxServant(db),
 		stmtAddFriend: c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtDelFriend: c(`SELECT * FROM @person WHERE first_name=?`),
 	}

internal/dao/sakila/index.go

@@ -16,12 +16,12 @@ var (
 )
 
 type indexPostsServant struct {
-	db        *sqlx.DB
+	*sqlxServant
 	stmtIndex *sqlx.Stmt
 }
 
 type simpleIndexPostsServant struct {
-	db        *sqlx.DB
+	*sqlxServant
 	stmtIndex *sqlx.Stmt
 }
 
@@ -41,14 +41,14 @@ func (s *simpleIndexPostsServant) IndexPosts(_user *core.User, offset int, limit
 
 func newIndexPostsService(db *sqlx.DB) core.IndexPostsService {
 	return &indexPostsServant{
-		db:        db,
+		sqlxServant: newSqlxServant(db),
-		stmtIndex: c(`SELECT * FROM @person WHERE first_name=?`),
+		stmtIndex:   c(`SELECT * FROM @person WHERE first_name=?`),
 	}
 }
 
 func newSimpleIndexPostsService(db *sqlx.DB) core.IndexPostsService {
 	return &simpleIndexPostsServant{
-		db:        db,
+		sqlxServant: newSqlxServant(db),
-		stmtIndex: c(`SELECT * FROM @person WHERE first_name=?`),
+		stmtIndex:   c(`SELECT * FROM @person WHERE first_name=?`),
 	}
 }

internal/dao/sakila/messages.go

@@ -15,7 +15,7 @@ var (
 )
 
 type messageServant struct {
-	db          *sqlx.DB
+	*sqlxServant
 	stmtAddMsg  *sqlx.Stmt
 	stmtGetMsg  *sqlx.Stmt
 	stmtReadMsg *sqlx.Stmt
@@ -59,7 +59,7 @@ func (s *messageServant) GetMessageCount(conditions *core.ConditionsT) (int64, e
 
 func newMessageService(db *sqlx.DB) core.MessageService {
 	return &messageServant{
-		db:          db,
+		sqlxServant: newSqlxServant(db),
 		stmtAddMsg:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtGetMsg:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtReadMsg: c(`SELECT * FROM @person WHERE first_name=?`),

internal/dao/sakila/security.go

@@ -15,7 +15,7 @@ var (
 )
 
 type securityServant struct {
-	db             *sqlx.DB
+	*sqlxServant
 	phoneVerify    core.PhoneVerifyService
 	stmtAddCaptcha *sqlx.Stmt
 	stmtGetCaptcha *sqlx.Stmt
@@ -44,7 +44,7 @@ func (s *securityServant) SendPhoneCaptcha(phone string) error {
 
 func newSecurityService(db *sqlx.DB, phoneVerify core.PhoneVerifyService) core.SecurityService {
 	return &securityServant{
-		db:             db,
+		sqlxServant:    newSqlxServant(db),
 		phoneVerify:    phoneVerify,
 		stmtAddCaptcha: c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtGetCaptcha: c(`SELECT * FROM @person WHERE first_name=?`),

internal/dao/sakila/sqlx.go

@@ -8,6 +8,8 @@
 package sakila
 
 import (
+	"context"
+	"database/sql"
 	"strings"
 	"sync"
 
@@ -21,6 +23,39 @@ var (
 	_once sync.Once
 )
 
+type sqlxServant struct {
+	db *sqlx.DB
+}
+
+func (s *sqlxServant) with(handle func(*sqlx.Tx) error) error {
+	tx, err := s.db.Beginx()
+	if err != nil {
+		return err
+	}
+	if err = handle(tx); err == nil {
+		return tx.Commit()
+	}
+	return tx.Rollback()
+}
+
+func (s *sqlxServant) withTx(ctx context.Context, opts *sql.TxOptions, handle func(*sqlx.Tx) error) error {
+	tx, err := s.db.BeginTxx(ctx, opts)
+	if err != nil {
+		return err
+
+	}
+	if err = handle(tx); err == nil {
+		return tx.Commit()
+	}
+	return tx.Rollback()
+}
+
+func newSqlxServant(db *sqlx.DB) *sqlxServant {
+	return &sqlxServant{
+		db: db,
+	}
+}
+
 func sqlxDB() *sqlx.DB {
 	_once.Do(func() {
 		_db = conf.MustSqlxDB()

internal/dao/sakila/topics.go

@@ -15,7 +15,7 @@ var (
 )
 
 type topicServant struct {
-	db          *sqlx.DB
+	*sqlxServant
 	stmtAddTag  *sqlx.Stmt
 	stmtDelTag  *sqlx.Stmt
 	stmtListTag *sqlx.Stmt
@@ -47,7 +47,7 @@ func (s *topicServant) GetTagsByKeyword(keyword string) ([]*core.Tag, error) {
 
 func newTopicService(db *sqlx.DB) core.TopicService {
 	return &topicServant{
-		db:          db,
+		sqlxServant: newSqlxServant(db),
 		stmtAddTag:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtDelTag:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtListTag: c(`SELECT * FROM @person WHERE first_name=?`),

internal/dao/sakila/tweets.go

@@ -19,14 +19,14 @@ var (
 )
 
 type tweetServant struct {
-	db            *sqlx.DB
+	*sqlxServant
 	stmtGetTweet  *sqlx.Stmt
 	stmtListTweet *sqlx.Stmt
 	stmtListStar  *sqlx.Stmt
 }
 
 type tweetManageServant struct {
-	db             *sqlx.DB
+	*sqlxServant
 	cacheIndex     core.CacheIndexService
 	stmtAddTweet   *sqlx.Stmt
 	stmtDelTweet   *sqlx.Stmt
@@ -34,7 +34,7 @@ type tweetManageServant struct {
 }
 
 type tweetHelpServant struct {
-	db          *sqlx.DB
+	*sqlxServant
 	stmtAddTag  *sqlx.Stmt
 	stmtDelTag  *sqlx.Stmt
 	stmtListTag *sqlx.Stmt
@@ -230,7 +230,7 @@ func (s *tweetServant) GetPostContentByID(id int64) (*core.PostContent, error) {
 
 func newTweetService(db *sqlx.DB) core.TweetService {
 	return &tweetServant{
-		db:            db,
+		sqlxServant:   newSqlxServant(db),
 		stmtGetTweet:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtListTweet: c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtListStar:  c(`SELECT * FROM @person WHERE first_name=?`),
@@ -239,7 +239,7 @@ func newTweetService(db *sqlx.DB) core.TweetService {
 
 func newTweetManageService(db *sqlx.DB, cacheIndex core.CacheIndexService) core.TweetManageService {
 	return &tweetManageServant{
-		db:             db,
+		sqlxServant:    newSqlxServant(db),
 		cacheIndex:     cacheIndex,
 		stmtAddTweet:   c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtDelTweet:   c(`SELECT * FROM @person WHERE first_name=?`),
@@ -249,7 +249,7 @@ func newTweetManageService(db *sqlx.DB, cacheIndex core.CacheIndexService) core.
 
 func newTweetHelpService(db *sqlx.DB) core.TweetHelpService {
 	return &tweetHelpServant{
-		db:          db,
+		sqlxServant: newSqlxServant(db),
 		stmtAddTag:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtDelTag:  c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtListTag: c(`SELECT * FROM @person WHERE first_name=?`),

internal/dao/sakila/user.go

@@ -15,7 +15,7 @@ var (
 )
 
 type userManageServant struct {
-	db             *sqlx.DB
+	*sqlxServant
 	stmtAddUser    *sqlx.Stmt
 	stmtUpdateUser *sqlx.Stmt
 	stmtGetUser    *sqlx.Stmt
@@ -71,7 +71,7 @@ func (s *userManageServant) UpdateUser(user *core.User) error {
 
 func newUserManageService(db *sqlx.DB) core.UserManageService {
 	return &userManageServant{
-		db:             db,
+		sqlxServant:    newSqlxServant(db),
 		stmtAddUser:    c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtUpdateUser: c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtGetUser:    c(`SELECT * FROM @person WHERE first_name=?`),

internal/dao/sakila/wallet.go

@@ -15,7 +15,7 @@ var (
 )
 
 type walletServant struct {
-	db              *sqlx.DB
+	*sqlxServant
 	stmtAddRecharge *sqlx.Stmt
 	stmtGetRecharge *sqlx.Stmt
 	stmtGetBills    *sqlx.Stmt
@@ -58,7 +58,7 @@ func (s *walletServant) HandlePostAttachmentBought(post *core.Post, user *core.U
 
 func newWalletService(db *sqlx.DB) core.WalletService {
 	return &walletServant{
-		db:              db,
+		sqlxServant:     newSqlxServant(db),
 		stmtAddRecharge: c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtGetRecharge: c(`SELECT * FROM @person WHERE first_name=?`),
 		stmtGetBills:    c(`SELECT * FROM @person WHERE first_name=?`),