Score feature

[Vincent Lark]

Hi, thank you for this library, love it.

My specific requirement is to find the "best match" ; that is a kind of score, to find the item matching the most query statements.
An advanced version could allow a "boost" keyword in some statements of a query.

Do you think it's a realistic feature to ask ? I understand it needs quite a big change.
If you're not interested to do it, could you point me some tips about how could I do it ?

Cheers

[Dave Tonge]

Hi, thanks for the comment. It sounds like an interesting feature. Please can you give an example with sample data and the type of result you would like

[Vincent Lark]

The idea is to have a kind-of should Elasticsearch query.

Here's an example of what I mean: https://gist.github.com/vincent/3a86441354458b7acaa3

In my personal requirement, I just need the best result, with or without the _score metadata

[Dave Tonge]

@vincent please try out the score api in the above commit.

it "has a score method with a $boost operator", ->
    collection = [
      { name:'dress',  color:'red',   price:100 }
      { name:'shoes',  color:'black', price:120 }
      { name:'jacket', color:'blue',  price:150 }
    ]

    results = _.query.score( collection, { price: 100, color: {$in:['black'], $boost:3 }})

    assert.equal _.findWhere(results, {name:'dress'})._score, 0.5
    assert.equal _.findWhere(results, {name:'shoes'})._score, 1.5

[Vincent Lark]

awesome, thank you !

I'll try this asap.