20 lines
531 B
Go
20 lines
531 B
Go
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package database
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import (
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"fmt"
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"hash/crc32"
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"strings"
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)
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const advisoryLockIDSalt uint = 1486364155
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// GenerateAdvisoryLockId inspired by rails migrations, see https://goo.gl/8o9bCT
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func GenerateAdvisoryLockId(databaseName string, additionalNames ...string) (string, error) { // nolint: golint
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if len(additionalNames) > 0 {
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databaseName = strings.Join(append(additionalNames, databaseName), "\x00")
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}
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sum := crc32.ChecksumIEEE([]byte(databaseName))
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sum = sum * uint32(advisoryLockIDSalt)
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return fmt.Sprint(sum), nil
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}
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