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driver: support scanning more formats into time.Time

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Fixes https://gitlab.com/cznic/sqlite/-/issues/46
This commit is contained in:
Dan Peterson
2021-03-14 15:48:26 -03:00
parent ceed017ea1
commit 798bbeb9bb
2 changed files with 73 additions and 1 deletions
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23
sqlite.go
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@@ -304,6 +304,19 @@ func (r *rows) Next(dest []driver.Value) (err error) {
}
}
// Inspired by mattn/go-sqlite3: https://github.com/mattn/go-sqlite3/blob/ab91e934/sqlite3.go#L210-L226
//
// These time.Parse formats handle formats 1 through 7 listed at https://www.sqlite.org/lang_datefunc.html.
var parseTimeFormats = []string{
"2006-01-02 15:04:05.999999999-07:00",
"2006-01-02T15:04:05.999999999-07:00",
"2006-01-02 15:04:05.999999999",
"2006-01-02T15:04:05.999999999",
"2006-01-02 15:04",
"2006-01-02T15:04",
"2006-01-02",
}
// Attempt to parse s as a time. Return (s, false) if s is not
// recognized as a valid time encoding.
func (c *conn) parseTime(s string) (interface{}, bool) {
@@ -311,7 +324,15 @@ func (c *conn) parseTime(s string) (interface{}, bool) {
return v, true
}
// TODO Add URI select time storage format and handle more formats
ts := strings.TrimSuffix(s, "Z")
for _, f := range parseTimeFormats {
t, err := time.Parse(f, ts)
if err == nil {
return t, true
}
}
return s, false
}