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golang-package/carbon

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type_carbon.go 1.47 KB
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kuafuRace 提交于 2025-06-27 21:42 +08:00 . refactor: 移除 GormDataType 相关代码
package carbon
import (
"bytes"
"database/sql/driver"
)
// Scan implements "driver.Scanner" interface for Carbon struct.
func (c *Carbon) Scan(src any) error {
switch v := src.(type) {
case nil:
return nil
case []byte:
*c = *Parse(string(v))
case string:
*c = *Parse(v)
case StdTime:
*c = *CreateFromStdTime(v)
case *StdTime:
*c = *CreateFromStdTime(*v)
default:
return ErrFailedScan(v)
}
return c.Error
}
// Value implements "driver.Valuer" interface for Carbon struct.
func (c Carbon) Value() (driver.Value, error) {
if c.IsNil() || c.IsZero() || c.IsEmpty() {
return nil, nil
}
if c.HasError() {
return nil, c.Error
}
return c.StdTime(), nil
}
// MarshalJSON implements "json.Marshaler" interface for Carbon struct.
func (c Carbon) MarshalJSON() ([]byte, error) {
if c.IsNil() || c.IsZero() || c.IsEmpty() {
return []byte(`null`), nil
}
if c.HasError() {
return []byte(`null`), c.Error
}
v := c.Layout(DefaultLayout)
b := make([]byte, 0, len(v)+2)
b = append(b, '"')
b = append(b, v...)
b = append(b, '"')
return b, nil
}
// UnmarshalJSON implements "json.Unmarshaler" interface for Carbon struct.
func (c *Carbon) UnmarshalJSON(src []byte) error {
v := string(bytes.Trim(src, `"`))
if v == "" || v == "null" {
return nil
}
*c = *ParseByLayout(v, DefaultLayout)
return c.Error
}
// String implements "Stringer" interface for Carbon struct.
func (c *Carbon) String() string {
if c.IsInvalid() {
return ""
}
return c.Layout(c.currentLayout)
}
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