Henry
44989d12e8
Co-authored-by: nova28 <17953305+nova28@users.noreply.github.com> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com> Co-authored-by: Carlos Florencio <carlosmflorencio@gmail.com>
54 lines
1.8 KiB
Go
54 lines
1.8 KiB
Go
package sqlite
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"fmt"
|
|
|
|
"github.com/kandev/kandev/internal/office/models"
|
|
)
|
|
|
|
// ListTaskCommentsWindow returns the newest `limit` comments for a task
|
|
// (by created_at DESC, id DESC), presented ascending by the same tiebreak
|
|
// columns, alongside the task's total comment count. The count and the
|
|
// window are read inside a single read-only transaction so a concurrent
|
|
// write is either fully visible to both or fully invisible to both
|
|
// (AC-003.7, AC-006.1/AC-006.2). ReadOnly+RepeatableRead is a no-op on
|
|
// SQLite (WAL already snapshots per-transaction) but documents intent and
|
|
// matches the internal/automation/export_store.go precedent.
|
|
func (r *Repository) ListTaskCommentsWindow(ctx context.Context, taskID string, limit int) ([]*models.TaskComment, int, error) {
|
|
tx, err := r.ro.BeginTxx(ctx, &sql.TxOptions{Isolation: sql.LevelRepeatableRead, ReadOnly: true})
|
|
if err != nil {
|
|
return nil, 0, fmt.Errorf("begin read tx: %w", err)
|
|
}
|
|
defer func() { _ = tx.Rollback() }()
|
|
|
|
var total int
|
|
if err := tx.QueryRowxContext(ctx, tx.Rebind(
|
|
`SELECT COUNT(*) FROM task_comments WHERE task_id = ?`), taskID).Scan(&total); err != nil {
|
|
return nil, 0, fmt.Errorf("count comments: %w", err)
|
|
}
|
|
|
|
var comments []*models.TaskComment
|
|
if err := tx.SelectContext(ctx, &comments, tx.Rebind(`
|
|
SELECT * FROM task_comments
|
|
WHERE task_id = ?
|
|
ORDER BY created_at DESC, id DESC
|
|
LIMIT ?
|
|
`), taskID, limit); err != nil {
|
|
return nil, 0, fmt.Errorf("select comments: %w", err)
|
|
}
|
|
|
|
if err := tx.Commit(); err != nil {
|
|
return nil, 0, fmt.Errorf("commit read tx: %w", err)
|
|
}
|
|
|
|
for i, j := 0, len(comments)-1; i < j; i, j = i+1, j-1 {
|
|
comments[i], comments[j] = comments[j], comments[i]
|
|
}
|
|
if comments == nil {
|
|
comments = []*models.TaskComment{}
|
|
}
|
|
return comments, total, nil
|
|
}
|