func NotifyEmail(cfg *Config, o *Object, r *Revision) error {
var (
e *email.Email
err error
)
// First version.
if r.Version == 1 {
e, err = newObjectEmail(cfg, o)
} else {
e, err = changedObjectEmail(cfg, o, r)
}
if err != nil {
return err
}
q := bson.M{
"subscribed": true,
}
p := bson.M{
"email": 1,
}
var subs []*Subscriber
if err = cfg.Mongo.Subscribers().Find(q).Select(p).All(&subs); err != nil {
return err
}
// No subscribers.
if len(subs) == 0 {
return nil
}
e.From = cfg.SMTP.From
e.To = make([]string, 1)
for _, sub := range subs {
e.To[0] = sub.Email
if err = e.Send(cfg.SMTP.Addr(), cfg.SMTP.Auth()); err != nil {
log.Printf("error sending email: %s", err)
}
}
return nil
}
