William Petit
591112a800
PostgreSQL - Possibilité de migrer le schéma de la base de données via drapeau - Génération du code GraphQL avec https://gqlgen.com/
80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
package database
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import (
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"context"
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"github.com/jackc/pgx/v4"
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"github.com/jackc/pgx/v4/pgxpool"
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"github.com/pkg/errors"
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"gitlab.com/wpetit/goweb/middleware/container"
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)
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type MigrationFunc func(ctx context.Context, tx pgx.Tx) error
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type Migration struct {
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version string
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up MigrationFunc
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down MigrationFunc
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}
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func (m *Migration) Version() string {
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return m.version
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}
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func (m *Migration) Up(ctx context.Context) error {
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pool, err := m.getDatabaseService(ctx)
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if err != nil {
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return err
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}
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err = WithTx(ctx, pool, func(ctx context.Context, tx pgx.Tx) error {
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return m.up(ctx, tx)
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})
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if err != nil {
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return errors.Wrap(err, "could not apply up migration")
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}
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return nil
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}
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func (m *Migration) Down(ctx context.Context) error {
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pool, err := m.getDatabaseService(ctx)
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if err != nil {
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return err
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}
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err = WithTx(ctx, pool, func(ctx context.Context, tx pgx.Tx) error {
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return m.down(ctx, tx)
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})
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if err != nil {
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return errors.Wrap(err, "could not apply down migration")
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}
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return nil
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}
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func (m *Migration) getDatabaseService(ctx context.Context) (*pgxpool.Pool, error) {
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ctn, err := container.From(ctx)
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if err != nil {
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return nil, errors.Wrap(err, "could not retrieve service container")
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}
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pool, err := From(ctn)
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if err != nil {
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return nil, errors.Wrap(err, "could not retrieve database service")
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}
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return pool, nil
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}
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func NewMigration(version string, up, down MigrationFunc) *Migration {
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return &Migration{
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version: version,
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up: up,
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down: down,
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}
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}
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