8fa594e3f0
Replacing modl’s built-in table creation and removal with manual migrations. Thanks to @DavidHuie for gomigrate!
82 lines
1.7 KiB
Go
82 lines
1.7 KiB
Go
package datastore
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import (
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"fmt"
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"math/rand"
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"strings"
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"time"
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"github.com/jmoiron/modl"
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"github.com/thermokarst/bactdb/models"
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)
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func init() {
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DB.AddTableWithName(models.User{}, "users").SetKeys(true, "Id")
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}
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type usersStore struct {
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*Datastore
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}
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func (s *usersStore) Get(id int64) (*models.User, error) {
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var users []*models.User
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if err := s.dbh.Select(&users, `SELECT * FROM users WHERE id=$1;`, id); err != nil {
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return nil, err
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}
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if len(users) == 0 {
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return nil, models.ErrUserNotFound
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}
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return users[0], nil
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}
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func (s *usersStore) Create(user *models.User) (bool, error) {
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retries := 3
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var wantRetry bool
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retry:
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retries--
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wantRetry = false
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if retries == 0 {
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return false, fmt.Errorf("failed to create user with username %q after retrying", user.UserName)
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}
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var created bool
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err := transact(s.dbh, func(tx modl.SqlExecutor) error {
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var existing []*models.User
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if err := tx.Select(&existing, `SELECT * FROM users WHERE username=$1 LIMIT 1;`, user.UserName); err != nil {
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return err
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}
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if len(existing) > 0 {
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*user = *existing[0]
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return nil
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}
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if err := tx.Insert(user); err != nil {
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if strings.Contains(err.Error(), `violates unique constraint "username_idx"`) {
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time.Sleep(time.Duration(rand.Intn(75)) * time.Millisecond)
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wantRetry = true
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return err
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}
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return err
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}
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created = true
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return nil
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})
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if wantRetry {
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goto retry
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}
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return created, err
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}
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func (s *usersStore) List(opt *models.UserListOptions) ([]*models.User, error) {
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if opt == nil {
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opt = &models.UserListOptions{}
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}
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var users []*models.User
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err := s.dbh.Select(&users, `SELECT * FROM users LIMIT $1 OFFSET $2;`, opt.PerPageOrDefault(), opt.Offset())
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if err != nil {
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return nil, err
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}
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return users, nil
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}
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