Elasticsearch and Tire to exclude deleted_at objects

Question

i'm trying to exclude objects which are deleted.. deleted_at is a datetime field and if the object is deleted it has a timestamp otherwise its nil.

this is my code:

tire.search(load: true, page: params[:page], per_page: 2) do
  query { string params[:query], default_operator: "AND" } if params[:query].present?
  filter :missing, field: :deleted_at
end

but this does exactly nothing on my output..

any hints?

Answer 1

So there are basically 3 states that a field/property could be in.

1. It doesn't exist in the document.
2. It does exist and the value is set to be null
3. It does exist and the value is something valid (or non-null)

If I understand correctly you want docs where deleted_at is in state 1 or 2. I think you need to create the equivalent of this:

"filter" : {
    "missing" : { 
        "field" : "deleted_at",
        "existence" : true,
        "null_value" : true
    }
}

The inner missing filter will find all docs which are in state 1 ( existence: true ) or state 2 ( null_value: true ).

Good luck!