37 lines
610 B
Go
37 lines
610 B
Go
package types
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import (
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"bytes"
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"database/sql"
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"encoding/json"
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)
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type NullInt64 struct {
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sql.NullInt64
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}
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func (i *NullInt64) MarshalJSON() ([]byte, error) {
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if !i.Valid {
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return []byte("null"), nil
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}
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return json.Marshal(i.Int64)
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}
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func (i *NullInt64) UnmarshalJSON(b []byte) error {
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if bytes.Equal(b, []byte("null")) {
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i.Int64 = 0
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i.Valid = false
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return nil
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}
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var x interface{}
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var err error
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json.Unmarshal(b, &x)
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switch x.(type) {
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case float64:
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err = json.Unmarshal(b, &i.Int64)
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case map[string]interface{}:
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err = json.Unmarshal(b, &i.NullInt64)
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}
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i.Valid = true
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return err
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}
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