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xorm_store.go
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/
xorm_store.go
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package tagimpl
import (
"context"
"github.com/grafana/grafana/pkg/infra/db"
"github.com/grafana/grafana/pkg/services/tag"
)
type sqlStore struct {
db db.DB
}
func (s *sqlStore) EnsureTagsExist(ctx context.Context, tags []*tag.Tag) ([]*tag.Tag, error) {
err := s.db.WithDbSession(ctx, func(sess *db.Session) error {
for _, tagElement := range tags {
exists, err := s.innerGetTag(sess, tagElement)
if err != nil {
return err
}
if !exists {
_, err := sess.Table("tag").Insert(tagElement)
if err != nil {
if s.db.GetDialect().IsUniqueConstraintViolation(err) {
_, err := s.innerGetTag(sess, tagElement)
return err
}
return err
}
}
}
return nil
})
return tags, err
}
func (s *sqlStore) innerGetTag(sess *db.Session, tagElement *tag.Tag) (bool, error) {
var existingTag tag.Tag
exists, err := sess.Table("tag").Where("`key`=? AND `value`=?", tagElement.Key, tagElement.Value).Get(&existingTag)
if err != nil {
return false, err
}
if !exists {
return false, nil
}
tagElement.Id = existingTag.Id
return true, nil
}