func AddRangeCriteria(conditions []*db.Criteria, column *db.Column, leftBound interface{}, rightBound interface{}) ([]*db.Criteria, bool) {
if !IsNil(leftBound) || !IsNil(rightBound) {
conditions = append(conditions, column.Range(leftBound, rightBound))
return conditions, true
}
return conditions, false
}
