PolymorphicType *Field
	Value           string
}

type Reference struct {
	PrimaryKey    *Field
	PrimaryValue  string
	ForeignKey    *Field
	OwnPrimaryKey bool
}

func (schema *Schema) parseRelation(field *Field) *Relationship {
	var (
		err        error
		fieldValue = reflect.New(field.IndirectFieldType).Interface()
		relation   = &Relationship{
			Name:        field.Name,
			Field:       field,

			}
		}
	}

	// parse relationships
	for _, field := range relationshipFields {
		if schema.parseRelation(field); schema.err != nil {
			return schema, schema.err
		}
	}

	return schema, schema.err
}

func getOrParse(dest interface{}, cacheStore *sync.Map, namer Namer) (*Schema, error) {