Add weight to chosen completion suggestion

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1

Hi!

On a lot of websites with completion suggesters the most popular suggestions are at the top. To my understanding this is why if you type 'iPhone' on a webshop the latest iPhone model will show up at the top, and not the one from 5 years ago.

Now I know one can add a higher weight property to a suggestion when you are PUTing a document, but I know beforehand what is going to be popular so I want to append to the weight property when a user chooses a suggestion to complete.

I know you can update the weight for a specific option by using scripts (from a very old stackoverflow post, don't know if it works)

POST /products/iphone/1
{
    "script" : {
        "inline": "ctx._source.suggest.weight += 1"
    }
}

But my suggest field is populated by a copy_to dynamic mapping as shown below.
Is there any way to create some sort of positive feedback loop for the completed suggestions

PUT test
{
  "mappings": {
    "properties" : {
      "full_text": {
        "type": "text",
        "store": true
      },
      "suggest" : {
        "type" : "completion"
      }
    },
    "dynamic_templates": [
      {
        "strings": {
          "match_mapping_type": "string",
          "mapping": {
            "type": "keyword",
            "copy_to": [ "full_text", "suggest" ]
          }
        }
      }
    ]
  }
}

P.S. The idea is explained here too in the 3rd point, but there is no concrete answer

2

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