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Elastic Docs ›Painless Scripting Language [7.4] ›Painless contexts

Filter context

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Filter context

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Use a Painless script as a filter in a query to include and exclude documents.

Variables

params (Map, read-only)
User-defined parameters passed in as part of the query.
doc (Map, read-only)
Contains the fields of the current document where each field is a List of values.

Return

boolean
Return true if the current document should be returned as a result of the query, and false otherwise.

API

The standard Painless API is available.

Example

To run this example, first follow the steps in context examples.

This script finds all unsold documents that cost less than $18.

doc['sold'].value == false && doc['cost'].value < 18

Defining cost as a script parameter enables the cost to be configured in the script query request. For example, the following request finds all available theatre seats for evening performances that are under $18.

GET seats/_search
{
    "query": {
        "bool" : {
            "filter" : {
                "script" : {
                    "script" : {
                        "source" : "doc['sold'].value == false && doc['cost'].value < params.cost",
                        "params" : {
                            "cost" : 18
                        }
                    }
                }
            }
        }
    }
}
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