46 lines
846 B
Smarty
46 lines
846 B
Smarty
package fields
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import (
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"database/sql/driver"
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"encoding/json"
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"errors"
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)
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// implement sql.Scanner interface
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type Json[T any] struct {
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Data T `json:",inline"`
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}
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func ToJson[T any](data T) Json[T] {
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return Json[T]{Data: data}
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}
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func (x *Json[T]) Scan(value interface{}) (err error) {
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switch v := value.(type) {
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case string:
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return json.Unmarshal([]byte(v), &x)
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case []byte:
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return json.Unmarshal(v, &x)
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case *string:
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return json.Unmarshal([]byte(*v), &x)
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}
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return errors.New("Unknown type for ")
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}
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func (x Json[T]) Value() (driver.Value, error) {
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return json.Marshal(x.Data)
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}
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func (x Json[T]) MarshalJSON() ([]byte, error) {
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return json.Marshal(x.Data)
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}
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func (x *Json[T]) UnmarshalJSON(data []byte) error {
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var value T
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if err := json.Unmarshal(data, &value); err != nil {
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return err
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}
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x.Data = value
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return nil
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}
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