# IF with Mutate Filter
**URL:** https://discuss.elastic.co/t/if-with-mutate-filter/124386
**Category:** Logstash
**Created:** [March 17, 2018, 5:02am UTC](https://discuss.elastic.co/t/if-with-mutate-filter/124386 "2018-03-17T05:02:24Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@wwalker](https://discuss.elastic.co/u/wwalker)
#### Post date: [March 17, 2018, 5:02am UTC](https://discuss.elastic.co/t/if-with-mutate-filter/124386/1 "2018-03-17T05:02:24Z")
I have a couple fields that will come in one of two values, `r` or `s`. I'd like to convert them to `Relaxed` or `Strict` as they come, but there may be instances where the field has no value. Is there a more efficient way than writing two `if` statements for each field?
Disregard, realized I could just use mutate's gsub function.
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### Author:  [@yaauie](https://discuss.elastic.co/u/yaauie)
#### Post date: [March 17, 2018, 5:48am UTC](https://discuss.elastic.co/t/if-with-mutate-filter/124386/2 "2018-03-17T05:48:36Z")
Or the [translate](https://www.elastic.co/guide/en/logstash/current/plugins-filters-translate.html) filter 🙂
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### Author:  [@wwalker](https://discuss.elastic.co/u/wwalker)
#### Post date: [March 17, 2018, 5:51am UTC](https://discuss.elastic.co/t/if-with-mutate-filter/124386/3 "2018-03-17T05:51:44Z")
> [@yaauie](#):
>
> Or the [translate](https://www.elastic.co/guide/en/logstash/current/plugins-filters-translate.html) filter 🙂
Ooooo, I hadn't looked at translate before...that looks neat. I'll have to keep that in my back pocket.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 14, 2018, 5:52am UTC](https://discuss.elastic.co/t/if-with-mutate-filter/124386/4 "2018-04-14T05:52:07Z")
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