# Iteration in Logstash

**URL:** https://discuss.elastic.co/t/iteration-in-logstash/26123
**Category:** Logstash
**Created:** [July 23, 2015, 4:10am UTC](https://discuss.elastic.co/t/iteration-in-logstash/26123 "2015-07-23T04:10:29Z")
**Posts on this page:** 1
**Showing post:** 2

<div class="post-metadata">

### Author: ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [July 23, 2015, 10:02am UTC](https://discuss.elastic.co/t/iteration-in-logstash/26123/2 "2015-07-23T10:02:36Z")

</div>

```
filter {
  ruby {
    code => '
      ids = event["id"].split(",")
      values = event["value"].split(",")
      if ids.length == values.length
        ids.each_index { |i| event["id#{ids[i]}"] = values[i] }
      end
    '
  }
}
```

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