Question

When adding a term to my query instead of a filter I am getting 0 facets. FYI I am using the tire gem with Ruby.

Here is my model code with its mapping:

class Property < ActiveRecord::Base
  include Tire::Model::Search
  include Tire::Model::Callbacks

  has_and_belongs_to_many :tags

   mapping do
    indexes :id,                type: 'integer'
    indexes :status
    indexes :refno,             type: 'integer'
    indexes :name,              :analyzer => 'snowball', :boost => 100
    indexes :description
    indexes :tags,              type: 'object',
                                  properties: {
                                    name: { type: 'multi_field',
                                      fields: {
                                        name: { type: 'string', analyzer: 'snowball' },
                                        exact: { type: 'string', index: 'not_analyzed' }
                                      }
                                    }
                                   }                                 
  end

  def to_indexed_json
    to_json( include: { 
      tags: { only: [:name] },
     })
  end

Then here is the search method

  def self.search(params={})
    tire.search(page: params[:page], per_page: 2, load: true) do
      query do
        boolean do
         must { string params[:name], default_operator: "AND" } if params[:name].present?
         must { term :status, 'live' }
         must { term :refno, params[:refno]} if params[:refno].present?
         # must { term :tag, params[:tag]} if params[:tag].present? ## does not work either
         must { term 'tags.name.exact', params[:tag]} if params[:tag].present?
        end
      end
      facet "tags" do
        terms 'tags.name.exact'
      end
      raise to_json
      # raise to_curl
    end
  end

I get 0 Facets. But if I move facets to a filter ie below I get full facets.

  def self.search(params={})
    tire.search(page: params[:page], per_page: 2, load: true) do
      query do
        boolean do
         must { string params[:name], default_operator: "AND" } if params[:name].present?
         must { term :status, 'live' }
         must { term :refno, params[:refno]} if params[:refno].present?
        end
      end
      filter :term, 'tags.name.exact' => params[:tag] if params[:tag].present?
      facet "tags" do
        terms 'tags.name.exact'
      end
      raise to_json
      # raise to_curl
    end
  end

While this is ok it’s not want, When a facet filter is clicked I want to remove non available tags from my facet filter and update the new facet count.

If it helps here is the json for the query which works and does not.

## No Factes
{
   "query":{
      "bool":{
         "must":[
            {
               "query_string":{
                  "query":"England",
                  "default_operator":"AND"
               }
            },
            {
               "term":{
                  "status":"live"
               }
            },
            {
               "term":{
                  "tags.name.exact":[
                     "Pet Friendly"
                  ]
               }
            }
         ]
      }
   },
   "facets":{
      "tags":{
         "terms":{
            "field":"tags.name.exact",
            "size":10,
            "all_terms":false
         }
      }
   },
   "size":2
}

## Facets working
{
   "query":{
      "bool":{
         "must":[
            {
               "query_string":{
                  "query":"England",
                  "default_operator":"AND"
               }
            },
            {
               "term":{
                  "status":"live"
               }
            }
         ]
      }
   },
   "facets":{
      "tags":{
         "terms":{
            "field":"tags.name.exact",
            "size":10,
            "all_terms":false
         }
      }
   },
   "filter":{
      "term":{
         "tags.name.exact":[
            "Pet Friendly"
         ]
      }
   },
   "size":2
}

Really hope someone can advise. Starting to pull my hair out on this one.

Answer 1

I was actually very close. As my tags can have multiple I needed to use terms not term ie,

  def self.search(params={})
    tire.search(page: params[:page], per_page: 2, load: true) do
      query do
        boolean do
         must { string params[:name], default_operator: "AND" } if 
         must { term :status, 'live' }
         must { term :refno, params[:refno]} if params[:refno].present?
         must { terms 'tags.name.exact', params[:tag]} if params[:tag].present?
        end
      end
      facet "tags" do
        terms 'tags.name.exact'
      end
      # raise to_json
      # raise to_curl
    end
  end

Thank you for your advise though imotov, Hoang.