49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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// For more tutorials : https://learngoprogramming.com
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// In-person training : https://www.linkedin.com/in/inancgumus/
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// Follow me on twitter: https://twitter.com/inancgumus
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package main
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import (
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"strconv"
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"time"
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)
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// timestamp stores, formats and automatically prints a timestamp.
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type timestamp struct {
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// timestamp anonymously embeds a time.
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// no need to convert a time value to a timestamp value to use the methods of the time type.
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time.Time
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}
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// String() returns a string representation of timestamp.
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// timestamp is an fmt.Stringer.
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func (ts timestamp) String() string {
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if ts.IsZero() { // same as: ts.Time.IsZero()
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return "unknown"
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}
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// Mon Jan 2 15:04:05 -0700 MST 2006
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const layout = "2006/01"
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return ts.Format(layout) // same as: ts.Time.Format(layout)
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}
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// toTimestamp returns a timestamp value depending on the type of `v`.
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func toTimestamp(v interface{}) (ts timestamp) {
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var t int
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switch v := v.(type) {
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case int:
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t = v
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case string:
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t, _ = strconv.Atoi(v)
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}
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ts.Time = time.Unix(int64(t), 0)
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return ts
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}
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