129 lines
2.7 KiB
Go
129 lines
2.7 KiB
Go
package training
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import (
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"context"
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"github.com/jackc/pgx/v5/pgxpool"
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"log"
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)
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type PostgresRepository struct {
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pg *pgxpool.Pool
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logger *log.Logger
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}
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func NewPostgresRepository(logger *log.Logger, pg *pgxpool.Pool) *PostgresRepository {
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return &PostgresRepository{
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pg: pg,
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logger: logger,
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}
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}
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func (r *PostgresRepository) Create(ctx context.Context, training *Training) error {
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tx, txErr := r.pg.Begin(ctx)
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if txErr != nil {
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return txErr
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}
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queryErr := tx.QueryRow(ctx, `
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INSERT INTO training.trainings (name, days, published)
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VALUES ($1, $2, $3)
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RETURNING id
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`, training.name, training.days, training.published).Scan(&training.id)
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if queryErr != nil {
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return queryErr
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}
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// TODO: insert pricing using the transaction (tx)
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return nil
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}
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func (r *PostgresRepository) Update(ctx context.Context, training *Training) error {
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_, err := r.pg.Exec(ctx, `
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UPDATE training.trainings
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SET name = $2
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WHERE id = $1
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`, training.ID, training.name)
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if err != nil {
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r.logger.Printf("error: %v\n", err)
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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 (r *PostgresRepository) FindByID(ctx context.Context, id ID) (*Training, error) {
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var t Training
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err := r.pg.QueryRow(ctx, `
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SELECT id, name, published, retired
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FROM training.trainings
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WHERE id = $1
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`, id).Scan(&t.id, &t.name, &t.published, &t.retired)
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if err != nil {
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r.logger.Printf("error: %v\n", err)
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return nil, err
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}
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return &t, nil
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}
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func (r *PostgresRepository) FindAll(ctx context.Context) ([]Training, error) {
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rows, err := r.pg.Query(ctx, `
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SELECT id, name, published, retired
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FROM training.trainings
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`)
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if err != nil {
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r.logger.Printf("error: %v\n", err)
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return nil, err
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}
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defer rows.Close()
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var trainings []Training
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for rows.Next() {
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var t Training
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err := rows.Scan(&t.id, &t.name, &t.published, &t.retired)
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if err != nil {
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r.logger.Printf("error: %v\n", err)
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return nil, err
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}
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trainings = append(trainings, t)
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}
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return trainings, nil
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}
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func (r *PostgresRepository) Publish(ctx context.Context, id ID) error {
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_, err := r.pg.Exec(ctx, `
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UPDATE training.trainings
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SET published = true
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WHERE id = $1
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`, id)
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if err != nil {
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r.logger.Printf("error: %v\n", err)
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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 (r *PostgresRepository) Unpublish(ctx context.Context, id ID) error {
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_, err := r.pg.Exec(ctx, `
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UPDATE training.trainings
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SET published = false
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WHERE id = $1
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`, id)
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if err != nil {
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r.logger.Printf("error: %v\n", err)
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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 (r *PostgresRepository) Retire(ctx context.Context, id ID) error {
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_, err := r.pg.Exec(ctx, `
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UPDATE training.trainings
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SET retired = true
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WHERE id = $1
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`, id)
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if err != nil {
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r.logger.Printf("error: %v\n", err)
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return err
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}
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return nil
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}
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