39 lines
764 B
Go
39 lines
764 B
Go
 
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package entities
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import (
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"database/sql/driver"
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"encoding/json"
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"fmt"
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)
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// StringSlice is a custom type for []string that implements sql.Scanner and driver.Valuer
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type StringSlice []string
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// Scan implements the sql.Scanner interface for StringSlice
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func (s *StringSlice) Scan(value interface{}) error {
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if value == nil {
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*s = StringSlice{}
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return nil
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}
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var bytes []byte
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switch v := value.(type) {
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case []byte:
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bytes = v
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case string:
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bytes = []byte(v)
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default:
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return fmt.Errorf("cannot scan %T into StringSlice", value)
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}
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return json.Unmarshal(bytes, s)
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}
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// Value implements the driver.Valuer interface for StringSlice
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func (s StringSlice) Value() (driver.Value, error) {
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if s == nil {
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return nil, nil
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}
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return json.Marshal(s)
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}
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