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package sophia
import "fmt"
// Schema is a structure for configuring fields which record will contain
type Schema struct {
// name -> type
keys map[string]FieldType
keysNames []string
// name -> type
values map[string]FieldType
valuesNames []string
}
// AddKey adds new key field for record.
// If record have already had field with such name error will be returned
func (s *Schema) AddKey(name string, typ FieldType) error {
if s.keys == nil {
s.keys = make(map[string]FieldType)
}
if _, ok := s.keys[name]; ok {
return fmt.Errorf("duplicate key, '%v' has been already defined", name)
}
s.keysNames = append(s.keysNames, name)
s.keys[name] = typ
return nil
}
// AddKey adds new value field for record.
// If record have already had field with such name error will be returned
func (s *Schema) AddValue(name string, typ FieldType) error {
if s.values == nil {
s.values = make(map[string]FieldType)
}
if _, ok := s.values[name]; ok {
return fmt.Errorf("duplicate value, '%v' is already defined", name)
}
s.valuesNames = append(s.valuesNames, name)
s.values[name] = typ
return nil
}
func defaultSchema() *Schema {
schema := &Schema{}
schema.AddKey("key", FieldTypeString)
schema.AddValue("value", FieldTypeString)
return schema
}
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