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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| package core | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "time" | ||
| ) | ||
|
|
||
| const dateFormat = "2006-01-02" | ||
|
|
||
| // DateTime wraps time.Time and adapts its JSON representation | ||
| // to conform to a RFC3339 date (e.g. 2006-01-02). | ||
| // | ||
| // Ref: https://ijmacd.github.io/rfc3339-iso8601 | ||
| type Date struct { | ||
| t *time.Time | ||
| } | ||
|
|
||
| // NewDate returns a new *Date. If the given time.Time | ||
| // is nil, nil will be returned. | ||
| func NewDate(t time.Time) *Date { | ||
| return &Date{t: &t} | ||
| } | ||
|
|
||
| // NewOptionalDate returns a new *Date. If the given time.Time | ||
| // is nil, nil will be returned. | ||
| func NewOptionalDate(t *time.Time) *Date { | ||
| if t == nil { | ||
| return nil | ||
| } | ||
| return &Date{t: t} | ||
| } | ||
|
|
||
| // Time returns the Date's underlying time, if any. If the | ||
| // date is nil, the zero value is returned. | ||
| func (d *Date) Time() time.Time { | ||
| if d == nil || d.t == nil { | ||
| return time.Time{} | ||
| } | ||
| return *d.t | ||
| } | ||
|
|
||
| // TimePtr returns a pointer to the Date's underlying time.Time, if any. | ||
| func (d *Date) TimePtr() *time.Time { | ||
| if d == nil || d.t == nil { | ||
| return nil | ||
| } | ||
| if d.t.IsZero() { | ||
| return nil | ||
| } | ||
| return d.t | ||
| } | ||
|
|
||
| func (d *Date) MarshalJSON() ([]byte, error) { | ||
| if d == nil || d.t == nil { | ||
| return nil, nil | ||
| } | ||
| return json.Marshal(d.t.Format(dateFormat)) | ||
| } | ||
|
|
||
| func (d *Date) UnmarshalJSON(data []byte) error { | ||
| var raw string | ||
| if err := json.Unmarshal(data, &raw); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| parsedTime, err := time.Parse(dateFormat, raw) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| *d = Date{t: &parsedTime} | ||
| return nil | ||
| } | ||
|
|
||
| // DateTime wraps time.Time and adapts its JSON representation | ||
| // to conform to a RFC3339 date-time (e.g. 2017-07-21T17:32:28Z). | ||
| // | ||
| // Ref: https://ijmacd.github.io/rfc3339-iso8601 | ||
| type DateTime struct { | ||
| t *time.Time | ||
| } | ||
|
|
||
| // NewDateTime returns a new *DateTime. | ||
| func NewDateTime(t time.Time) *DateTime { | ||
| return &DateTime{t: &t} | ||
| } | ||
|
|
||
| // NewOptionalDateTime returns a new *DateTime. If the given time.Time | ||
| // is nil, nil will be returned. | ||
| func NewOptionalDateTime(t *time.Time) *DateTime { | ||
| if t == nil { | ||
| return nil | ||
| } | ||
| return &DateTime{t: t} | ||
| } | ||
|
|
||
| // Time returns the DateTime's underlying time, if any. If the | ||
| // date-time is nil, the zero value is returned. | ||
| func (d *DateTime) Time() time.Time { | ||
| if d == nil || d.t == nil { | ||
| return time.Time{} | ||
| } | ||
| return *d.t | ||
| } | ||
|
|
||
| // TimePtr returns a pointer to the DateTime's underlying time.Time, if any. | ||
| func (d *DateTime) TimePtr() *time.Time { | ||
| if d == nil || d.t == nil { | ||
| return nil | ||
| } | ||
| if d.t.IsZero() { | ||
| return nil | ||
| } | ||
| return d.t | ||
| } | ||
|
|
||
| func (d *DateTime) MarshalJSON() ([]byte, error) { | ||
| if d == nil || d.t == nil { | ||
| return nil, nil | ||
| } | ||
| return json.Marshal(d.t.Format(time.RFC3339)) | ||
| } | ||
|
|
||
| func (d *DateTime) UnmarshalJSON(data []byte) error { | ||
| var raw string | ||
| if err := json.Unmarshal(data, &raw); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| parsedTime, err := time.Parse(time.RFC3339, raw) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| *d = DateTime{t: &parsedTime} | ||
| return nil | ||
| } |
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