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sqlx: optimize sqlx help function for in cause scence

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pull/351/head
Michael Li 2 years ago
parent 9d6d8f14b0
commit 2f1d4d2f1e
No known key found for this signature in database
2 changed files with 47 additions and 35 deletions
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40
internal/dao/sakila/sqlx.go
Unescape View File

@ -48,6 +48,38 @@ func (s *sqlxServant) withTx(ctx context.Context, opts *sql.TxOptions, handle fu
return tx.Commit()
}
func (s *sqlxServant) in(query string, args ...any) (string, []any, error) {
q, params, err := sqlx.In(query, args...)
if err != nil {
return "", nil, err
}
return s.db.Rebind(q), params, nil
}
func (s *sqlxServant) inExec(execer sqlx.Execer, query string, args ...any) (sql.Result, error) {
q, params, err := sqlx.In(query, args...)
if err != nil {
return nil, err
}
return execer.Exec(s.db.Rebind(q), params...)
}
func (s *sqlxServant) inSelect(queryer sqlx.Queryer, dest any, query string, args ...any) error {
q, params, err := sqlx.In(query, args...)
if err != nil {
return err
}
return sqlx.Select(queryer, dest, s.db.Rebind(q), params...)
}
func (s *sqlxServant) inGet(queryer sqlx.Queryer, dest any, query string, args ...any) error {
q, params, err := sqlx.In(query, args...)
if err != nil {
return err
}
return sqlx.Get(queryer, dest, s.db.Rebind(q), params...)
}
func newSqlxServant(db *sqlx.DB) *sqlxServant {
return &sqlxServant{
db: db,
@ -61,14 +93,6 @@ func sqlxDB() *sqlx.DB {
return _db
}
func in(db *sqlx.DB, query string, args ...interface{}) (string, []interface{}, error) {
q, params, err := sqlx.In(query, args...)
if err != nil {
return "", nil, err
}
return db.Rebind(q), params, nil
}
func r(query string) string {
db := sqlxDB()
return db.Rebind(t(query))

42
internal/dao/sakila/topics.go
Unescape View File

@ -26,24 +26,23 @@ type topicServant struct {
stmtTagsByIdA string
stmtTagsByIdB string
stmtDecrTagsById string
stmtTagsByName string
stmtTagsForIncr string
stmtIncrTagsById string
}
func (s *topicServant) UpsertTags(userId int64, tags []string) (res []*core.Tag, xerr error) {
if len(tags) <= 0 {
if len(tags) == 0 {
return nil, nil
}
xerr = s.with(func(tx *sqlx.Tx) error {
query, args, err := in(s.db, s.stmtTagsByName, tags)
var ts []*core.Tag
if err = tx.Select(&ts, query, args...); err != nil {
var upTags []*core.Tag
if err := s.inSelect(tx, &upTags, s.stmtTagsForIncr, tags); err != nil {
return err
}
now := time.Now().Unix()
if len(ts) > 0 {
if len(upTags) > 0 {
var ids []int64
for _, t := range ts {
for _, t := range upTags {
ids = append(ids, t.ID)
t.QuoteNum++
// prepare remain tags just delete updated tag
@ -57,13 +56,10 @@ func (s *topicServant) UpsertTags(userId int64, tags []string) (res []*core.Tag,
}
}
}
if query, args, err = in(s.db, s.stmtIncrTagsById, now, ids); err != nil {
if _, err := s.inExec(tx, s.stmtIncrTagsById, now, ids); err != nil {
return err
}
if _, err = tx.Exec(query, args...); err != nil {
return err
}
res = append(res, ts...)
res = append(res, upTags...)
}
// process remain tags if tags is not empty
if len(tags) == 0 {
@ -82,11 +78,7 @@ func (s *topicServant) UpsertTags(userId int64, tags []string) (res []*core.Tag,
ids = append(ids, id)
}
var newTags []*core.Tag
query, args, err = in(s.db, s.stmtTagsByIdB, ids)
if err != nil {
return err
}
if err = tx.Select(&newTags, query, args...); err != nil {
if err := s.inSelect(tx, &newTags, s.stmtTagsByIdB, ids); err != nil {
return err
}
res = append(res, newTags...)
@ -97,16 +89,12 @@ func (s *topicServant) UpsertTags(userId int64, tags []string) (res []*core.Tag,
func (s *topicServant) DecrTagsById(ids []int64) error {
return s.with(func(tx *sqlx.Tx) error {
query, args, err := in(s.db, s.stmtTagsByIdA, ids)
if err != nil {
return err
}
var ids []int64
if err = tx.Select(&ids, query, args...); err != nil {
err := s.inSelect(tx, &ids, s.stmtTagsByIdA, ids)
if err != nil {
return err
}
query, args, err = in(s.db, s.stmtDecrTagsById, time.Now().Unix(), ids)
_, err = tx.Exec(query, args...)
_, err = s.inExec(tx, s.stmtDecrTagsById, time.Now().Unix(), ids)
return err
})
}
@ -139,10 +127,10 @@ func newTopicService(db *sqlx.DB) core.TopicService {
stmtTagsByKeywordA: c(`SELECT id, user_id, tag, quote_num FROM @tag WHERE is_del = 0 ORDER BY quote_num DESC OFFSET 0 LIMIT 6`),
stmtTagsByKeywordB: c(`SELECT id, user_id, tag, quote_num FROM @tag WHERE is_del = 0 AND tag LIKE ? ORDER BY quote_num DESC OFFSET 0 LIMIT 6`),
stmtInsertTag: c(`INSERT INTO @tag (user_id, tag, created_on, modified_on, quote_num) VALUES (?, ?, ?, ?, 1)`),
stmtTagsByIdA: r(`SELECT id FROM @tag WHERE id IN (?) AND is_del = 0 AND quote_num >= 0`),
stmtTagsByIdA: r(`SELECT id FROM @tag WHERE id IN (?) AND is_del = 0 AND quote_num > 0`),
stmtTagsByIdB: r(`SELECT id, user_id, tag, quote_num FROM @tag WHERE id IN (?)`),
stmtDecrTagsById: r(`UPDATE @tag SET quote_num=quote_num-1, modified_on=? WHERE id IN (?)`),
stmtTagsByName: r(`SELECT id, user_id, tag, quote_num FROM @tag WHERE tag IN (?) AND is_del = 0 AND quote_num >= 0`),
stmtIncrTagsById: r(`UPDATE @tag SET quote_num=quote_num+1, modified_on=? WHERE id IN (?)`),
stmtTagsForIncr: r(`SELECT id, user_id, tag, quote_num FROM @tag WHERE tag IN (?)`),
stmtIncrTagsById: r(`UPDATE @tag SET quote_num=quote_num+1, is_del=0, modified_on=? WHERE id IN (?)`),
}
}

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