Add

Author: markuswustenberg

model/time.go

@@ -0,0 +1,79 @@
+package model
+
+import (
+	"database/sql/driver"
+	"fmt"
+	"time"
+)
+
+// rfc3339Milli is like time.RFC3339Nano, but with millisecond precision, and fractional seconds do not have trailing
+// zeros removed.
+const rfc3339Milli = "2006-01-02T15:04:05.000Z07:00"
+
+type Time struct {
+	T time.Time
+}
+
+func (t *Time) String() string {
+	if t == nil {
+		return ""
+	}
+	return t.T.UTC().Format(rfc3339Milli)
+}
+
+func ParseTime(v string) (Time, error) {
+	t, err := time.Parse(rfc3339Milli, v)
+	if err != nil {
+		return Time{}, err
+	}
+	return Time{T: t}, nil
+}
+
+// Value satisfies driver.Valuer interface.
+func (t Time) Value() (driver.Value, error) {
+	return t.T.UTC().Format(rfc3339Milli), nil
+}
+
+// Scan satisfies sql.Scanner interface.
+func (t *Time) Scan(src any) error {
+	if src == nil {
+		return nil
+	}
+
+	s, ok := src.(string)
+	if !ok {
+		return fmt.Errorf("error scanning time, got %+v", src)
+	}
+
+	parsedT, err := time.Parse(rfc3339Milli, s)
+	if err != nil {
+		return err
+	}
+
+	t.T = parsedT.UTC()
+
+	return nil
+}
+
+func Now() *Time {
+	return &Time{T: time.Now()}
+}
+
+func (t *Time) MarshalText() ([]byte, error) {
+	return []byte(t.String()), nil
+}
+
+func (t *Time) UnmarshalText(data []byte) error {
+	if len(data) == 0 {
+		return nil
+	}
+
+	parsedT, err := ParseTime(string(data))
+	if err != nil {
+		return err
+	}
+
+	t.T = parsedT.T.UTC()
+
+	return nil
+}