43 lines
990 B
Go
43 lines
990 B
Go
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package pq
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// Copyright (c) 2011-2013, 'pq' Contributors Portions Copyright (C) 2011 Blake Mizerany
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import (
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"strconv"
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"time"
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)
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// FormatTimestamp formats t into Postgres' text format for timestamps. From: github.com/lib/pq
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func FormatTimestamp(t time.Time) []byte {
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// Need to send dates before 0001 A.D. with " BC" suffix, instead of the
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// minus sign preferred by Go.
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// Beware, "0000" in ISO is "1 BC", "-0001" is "2 BC" and so on
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bc := false
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if t.Year() <= 0 {
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// flip year sign, and add 1, e.g: "0" will be "1", and "-10" will be "11"
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t = t.AddDate((-t.Year())*2+1, 0, 0)
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bc = true
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}
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b := []byte(t.Format("2006-01-02 15:04:05.999999999Z07:00"))
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_, offset := t.Zone()
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offset = offset % 60
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if offset != 0 {
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// RFC3339Nano already printed the minus sign
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if offset < 0 {
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offset = -offset
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}
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b = append(b, ':')
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if offset < 10 {
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b = append(b, '0')
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}
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b = strconv.AppendInt(b, int64(offset), 10)
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}
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if bc {
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b = append(b, " BC"...)
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}
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return b
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}
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