ripple-api/common/paginate.go

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package common
import (
"fmt"
"strconv"
)
// Paginate creates an additional SQL LIMIT clause for paginating.
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func Paginate(page, limit string, maxLimit int) string {
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var (
pInt int
lInt int
err error
)
if page == "" {
pInt = 1
} else {
pInt, err = strconv.Atoi(page)
if err != nil {
pInt = 1
}
}
if limit == "" {
lInt = 50
} else {
lInt, err = strconv.Atoi(limit)
if err != nil {
lInt = 50
}
}
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if pInt < 1 {
pInt = 1
}
if lInt < 1 {
lInt = 50
}
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if lInt > maxLimit {
lInt = maxLimit
}
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start := (pInt - 1) * lInt
return fmt.Sprintf(" LIMIT %d,%d ", start, lInt)
}