Exemplo n.º 1
0
func (d *Driver) indexName(m driver.Model, idx *index.Index) (string, error) {
	if len(idx.Fields) == 0 {
		return "", fmt.Errorf("index on %v has no fields", m.Type())
	}
	buf := getBuffer()
	buf.WriteString(m.Table())
	for _, v := range idx.Fields {
		dbName, _, err := m.Map(v)
		if err != nil {
			return "", err
		}
		buf.WriteByte('_')
		// dbName is quoted and includes the table name
		// extract the unquoted field name.
		buf.WriteString(unquote(dbName))
		if DescField(idx, v) {
			buf.WriteString("_desc")
		}
	}
	s := buf.String()
	putBuffer(buf)
	return s, nil
}