OK, answering a couple of my own questions:
1. Return value: _score e.g.
_score = Math.sqrt(retscore);
2. Accessing nested: easy enough:
_source.things[i]
3. Debugging. Dunno.
On Tuesday, 22 July 2014 17:17:40 UTC+1, Roland Dunn wrote:
>
> Hi,
> Wonder if anyone could help. I've managed to get a query script up and
> running, using JavaScript. The script resides in
> /etc/elasticsearch/scripts.
>
> I'm using a function_score query as follows:
>
> "function_score": {
> "query": {
> "match_all": {}
> },
> "script_score": {
> "script": "poot",
> "params": {
> "topics_dict_param": {
> "4": 102
> }
> }
> }
>
> I'm passing into the JS script a dictionary of values.
>
> Questions:
>
> 1. What determines the "return value" of the JS script? At the moment I
> just have "retscore;" as a standalone line in the script, this seems to
> work, but feels bit random. Would like something more explicit.
>
> 2. How can I debug the JS script? Can I output some values somewhere? E.g.
> print, or log? If so, where does the output go?
>
> 3. The mapping of the ES index involves an array of nested objects e.g.
>
> "things": {
> "type": "nested",
> "properties": {
> "thing_id": {
> "type": "long"
> },
> "count": {
> "type": "long"
> },
> "sentiment": {
> "type": "double"
> }
> }
> },
>
> Can I access this via _source.things? And if I can, can I do something
> like _source.things[0].thing_id ?
>
> Any help v welcome.
>
> Thanks,
> R
>
>
>
>
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