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int16.go
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45 lines (38 loc) · 731 Bytes
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package sqlnull
import (
"database/sql"
"encoding/json"
"reflect"
)
type NullInt16 sql.NullInt16
func (n NullInt16) MarshalJSON() ([]byte, error) {
if !n.Valid {
return json.Marshal(nil)
}
return json.Marshal(n.Int16)
}
func (n *NullInt16) UnmarshalJSON(data []byte) error {
var target *int16
if err := json.Unmarshal(data, &target); err != nil {
return err
}
n.Valid = target != nil
if n.Valid {
n.Int16 = *target
} else {
n.Int16 = 0
}
return nil
}
func (n *NullInt16) Scan(src any) error {
var sqln sql.NullInt16
if err := sqln.Scan(src); err != nil {
return err
}
n.Int16 = sqln.Int16
n.Valid = reflect.TypeOf(src) != nil
return nil
}
func (n *NullInt16) IsZero() bool {
return !n.Valid
}