package entity

type DeleteStrategy int

const (
	_ DeleteStrategy = iota
	None
	Cascade
	Nullable
)

func deleteStrategyFromAlias(alias string) DeleteStrategy {
	switch alias {
	case "cascade":
		return Cascade
	case "nullable":
		return Nullable
	default:
		return None
	}
}

type RelationType int

const (
	_ RelationType = iota
	Lazy
	Eager
	SmartLazy
)

func relationTypeFromAlias(alias string) RelationType {
	switch alias {
	case "lazy":
		return Lazy
	case "eager":
		return Eager
	default:
		return Lazy
	}
}

type Relation interface {
	Type() RelationType
	DeleteStrategy() DeleteStrategy
	RelationWith() Name

	Field() *FieldInfo

	setField(f *FieldInfo)
	fillFromTag(tag *parsedTag, parent *MetaInfo)
}