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Dmitry
2025-08-30 10:30:53 +03:00
parent 2e7ab5e382
commit 3654383ad2
9 changed files with 34 additions and 40 deletions
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26
repo.go
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@@ -16,17 +16,15 @@ var (
)
type Repo[T any] interface {
// Create inserts object into repository table. If id already exists
// Create saves object to the repository. If id already exists
// in the database it is an error.
Create(ctx context.Context, id string, v *T) error
// Read returns object with specified id or ErrNotFound
Read(ctx context.Context, id string) (*T, error)
// Update updates object with id.
Update(ctx context.Context, id string, v *T) error
// Delete performs soft-delete (actually marks object as unavailable).
// Delete deletes object from the database.
Delete(ctx context.Context, id string) error
// Purge actually deletes database record with id.
Purge(ctx context.Context, id string) error
}
// OpenOrCreate accepts *sql.DB and tablename and tries to create the named table
@@ -65,7 +63,7 @@ func (r *repo[T]) Create(ctx context.Context, id string, v *T) error {
}
func (r *repo[T]) Read(ctx context.Context, id string) (*T, error) {
query := "SELECT payload FROM " + r.table + " WHERE id = $1 AND deleted_at is NULL"
query := "SELECT payload FROM " + r.table + " WHERE id = $1"
row := r.db.QueryRowContext(ctx, query, id)
@@ -94,7 +92,7 @@ func (r *repo[T]) Update(ctx context.Context, id string, v *T) error {
return err
}
query := "UPDATE " + r.table + " SET updated_at = $1, payload = $2 WHERE id = $3 AND deleted_at IS NULL"
query := "UPDATE " + r.table + " SET updated_at = $1, payload = $2 WHERE id = $3"
if err := r.execContext(ctx, query, now, string(b), id); err != nil {
return err
@@ -103,21 +101,8 @@ func (r *repo[T]) Update(ctx context.Context, id string, v *T) error {
return nil
}
// Delete performs soft-delete. It just marks the record as deleted and it will
// no longer be available to Read and Update methods.
// Delete deletes record with cpecified id.
func (r *repo[T]) Delete(ctx context.Context, id string) error {
now := time.Now()
query := "UPDATE " + r.table + " SET deleted_at = $1 WHERE id = $2 AND deleted_at IS NULL"
if err := r.execContext(ctx, query, now, id); err != nil {
return err
}
return nil
}
func (r *repo[T]) Purge(ctx context.Context, id string) error {
query := "DELETE FROM " + r.table + " WHERE id = $1"
if err := r.execContext(ctx, query, id); err != nil {
@@ -132,6 +117,7 @@ func (r *repo[T]) execContext(ctx context.Context, query string, args ...any) er
if err != nil {
return errors.Join(ErrExecQuery, err)
}
affected, err := res.RowsAffected()
if err != nil {
return errors.Join(ErrExecQuery, err)