Files
sqlite3/driver/time.go
2023-04-18 01:00:59 +01:00

32 lines
850 B
Go

package driver
import (
"database/sql/driver"
"time"
)
// Convert a string in [time.RFC3339Nano] format into a [time.Time]
// if it roundtrips back to the same string.
// This way times can be persisted to, and recovered from, the database,
// but if a string is needed, [database/sql] will recover the same string.
func stringOrTime(text []byte) driver.Value {
// Weed out (some) values that can't possibly be
// [time.RFC3339Nano] timestamps.
if len(text) < len("2006-01-02T15:04:05Z") {
return string(text)
}
if len(text) > len(time.RFC3339Nano) {
return string(text)
}
if text[4] != '-' || text[10] != 'T' || text[16] != ':' {
return string(text)
}
// Slow path.
date, err := time.Parse(time.RFC3339Nano, string(text))
if err == nil && date.Format(time.RFC3339Nano) == string(text) {
return date
}
return string(text)
}