mirror of
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5b6c98582e
* refactor: migrate storage to apiv1 * chore: update * chore: update * chore: update
139 lines
2.3 KiB
Go
139 lines
2.3 KiB
Go
package store
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import (
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"context"
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"database/sql"
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"fmt"
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"strings"
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)
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type Tag struct {
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Name string
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CreatorID int
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}
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type FindTag struct {
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CreatorID int
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}
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type DeleteTag struct {
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Name string
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CreatorID int
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}
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func (s *Store) UpsertTag(ctx context.Context, upsert *Tag) (*Tag, error) {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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query := `
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INSERT INTO tag (
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name, creator_id
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)
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VALUES (?, ?)
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ON CONFLICT(name, creator_id) DO UPDATE
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SET
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name = EXCLUDED.name
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`
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if _, err := tx.ExecContext(ctx, query, upsert.Name, upsert.CreatorID); err != nil {
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return nil, err
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}
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if err := tx.Commit(); err != nil {
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return nil, err
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}
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tag := upsert
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return tag, nil
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}
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func (s *Store) ListTags(ctx context.Context, find *FindTag) ([]*Tag, error) {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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where, args := []string{"creator_id = ?"}, []any{find.CreatorID}
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query := `
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SELECT
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name,
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creator_id
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FROM tag
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WHERE ` + strings.Join(where, " AND ") + `
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ORDER BY name ASC
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`
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rows, err := tx.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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list := []*Tag{}
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for rows.Next() {
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tag := &Tag{}
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if err := rows.Scan(
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&tag.Name,
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&tag.CreatorID,
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); err != nil {
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return nil, err
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}
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list = append(list, tag)
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return list, nil
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}
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func (s *Store) DeleteTag(ctx context.Context, delete *DeleteTag) error {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return err
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}
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defer tx.Rollback()
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where, args := []string{"name = ?", "creator_id = ?"}, []any{delete.Name, delete.CreatorID}
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query := `DELETE FROM tag WHERE ` + strings.Join(where, " AND ")
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result, err := tx.ExecContext(ctx, query, args...)
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if err != nil {
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return err
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}
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rows, _ := result.RowsAffected()
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if rows == 0 {
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return fmt.Errorf("tag not found")
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}
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if err := tx.Commit(); err != nil {
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// Prevent linter warning.
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return err
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}
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return nil
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}
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func vacuumTag(ctx context.Context, tx *sql.Tx) error {
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stmt := `
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DELETE FROM
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tag
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WHERE
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creator_id NOT IN (
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SELECT
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id
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FROM
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user
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)`
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_, err := tx.ExecContext(ctx, stmt)
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if err != nil {
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return err
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}
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return nil
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}
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