Method GetFieldIndex

model/model.go:409–436

(ptype string, field string)

}

func (model Model) GetFieldIndex(ptype string, field string) (int, error) {
	assertion := model["p"][ptype]

	assertion.FieldIndexMutex.RLock()
	if index, ok := assertion.FieldIndexMap[field]; ok {
		assertion.FieldIndexMutex.RUnlock()
		return index, nil
	}
	assertion.FieldIndexMutex.RUnlock()

	pattern := fmt.Sprintf("%s_"+field, ptype)
	index := -1
	for i, token := range assertion.Tokens {
		if token == pattern {
			index = i
			break
		}
	}
	if index == -1 {
		return index, fmt.Errorf(field + " index is not set, please use enforcer.SetFieldIndex() to set index")
	}

	assertion.FieldIndexMutex.Lock()
	assertion.FieldIndexMap[field] = index
	assertion.FieldIndexMutex.Unlock()

	return index, nil
}