func (b *Backend) ExecQuery(statement FieldedExpression) ([]interface{}, apperror.Error) {
translator := b.translator.New()
if err := translator.PrepareExpression(statement); err != nil {
return nil, err
}
if err := translator.Translate(statement); err != nil {
return nil, err
}
sql := translator.String()
args := translator.RawArguments()
res := b.SqlExec(sql, args...)
if res.Err() != nil {
return nil, apperror.Wrap(res.Err(), "orient_error")
}
defer res.Close()
var rawData interface{}
if err := res.All(&rawData); err != nil {
return nil, apperror.Wrap(err, "orient_result_retrieval_error")
}
rows, ok := rawData.([]orient.OIdentifiable)
if !ok {
return nil, apperror.New("invalid_non_record_orient_result")
}
items := make([]interface{}, len(rows), len(rows))
var info *db.ModelInfo
if sel, ok := statement.(*SelectStmt); ok {
info = b.ModelInfos().Find(sel.Collection())
}
for i, rawItem := range rows {
document, ok := rawItem.(*orient.Document)
if !ok {
continue
}
data := make(map[string]interface{})
if info != nil && info.PkAttribute() != nil {
data[info.PkAttribute().Name()] = document.RId
}
for _, docEntry := range document.Fields() {
data[docEntry.Name] = docEntry.Value
}
items[i] = data
}
return items, nil
}
