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json.go
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json.go
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package converter
import (
"database/sql"
"encoding/json"
"reflect"
)
type NullJSONBool struct {
sql.NullBool
}
func JSONNullBool(value string) reflect.Value {
v := NullJSONBool{}
if value == "on" || value == "off" {
return reflect.ValueOf(NullJSONBool{sql.NullBool{Bool: value == "on", Valid: true}})
}
if err := v.Scan(value); err != nil {
return reflect.Value{}
}
return reflect.ValueOf(v)
}
func (v NullJSONBool) MarshalJSON() ([]byte, error) {
if v.Valid {
return json.Marshal(v.Bool)
} else {
return json.Marshal(nil)
}
}
func (v *NullJSONBool) UnmarshalJSON(data []byte) error {
// Unmarshalling into a pointer will let us detect null
var x *bool
if err := json.Unmarshal(data, &x); err != nil {
return err
}
if x != nil {
v.Valid = true
v.Bool = *x
} else {
v.Valid = false
}
return nil
}
type NullJSONString struct {
sql.NullString
}
func JSONNullString(value string) reflect.Value {
v := NullJSONString{}
if err := v.Scan(value); err != nil {
return reflect.Value{}
}
return reflect.ValueOf(v)
}
func (v NullJSONString) MarshalJSON() ([]byte, error) {
if v.Valid {
return json.Marshal(v.String)
} else {
return json.Marshal(nil)
}
}
func (v *NullJSONString) UnmarshalJSON(data []byte) error {
// Unmarshalling into a pointer will let us detect null
var x *string
if err := json.Unmarshal(data, &x); err != nil {
return err
}
if x != nil {
v.Valid = true
v.String = *x
} else {
v.Valid = false
}
return nil
}
func ConvertJSONNullString(value string) reflect.Value {
v := NullJSONString{}
if err := v.Scan(value); err != nil {
return reflect.Value{}
}
return reflect.ValueOf(v)
}
func ConvertJSONNullBool(value string) reflect.Value {
v := NullJSONBool{}
if value == "on" || value == "off" {
return reflect.ValueOf(NullJSONBool{sql.NullBool{Bool: value == "on", Valid: true}})
}
if err := v.Scan(value); err != nil {
return reflect.Value{}
}
return reflect.ValueOf(v)
}

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