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