与Elasticsearch，Tire和Kaminari分页

Question

I'm having issues getting pagination of search results to work with Elasticsearch, Tire, and Kaminari.

I am searching on all models in my application (news, paintings, books) as a general site search and therefore, need a block for the tire search, in my site controller for more fine grained control, such as showing more than the default of 10 entries:

class SiteController < ApplicationController
  def search
    # @results = Painting.search(params[:query])
    query = params[:query]
    @results = Tire.search ['news','paintings', 'books'], :page => (params[:page]||1), :per_page=> (params[:per_page] || 3) do
      query { string query }
      size 100
    end
  end
end

In my search results page, I have the following code:

- if @results
  - @results.results.each do |result|
    = result.title
#pagination
  = paginate @results

and in all my models, I have the proper mapping and includes from tire:

  # - - - - - - - - - - - - - - - - 
  # Elasticsearch
  # - - - - - - - - - - - - - - - - 
  include Tire::Model::Search
  include Tire::Model::Callbacks

  mapping do
    indexes :id, index: :not_analyzed
    indexes :title, boost: 100
    indexes :slug, boost: 100, as: 'slug'
    indexes :content
    indexes :image, as: 'image.thumb.url'
    indexes :tags, as: 'tags'
    indexes :gallery_name, as: 'gallery.name'
    indexes :created_at, :type => 'date'
  end

I ensured all my entries are indexed properly in Elasticsearch.

The issue I'm having is I can't get it to work, the latest error is:

undefined method `current_page'

Any thoughts would be greatly appreciated. Thank you.

Answer 1

Can you try this??? When I used the per_page option, I had similar issue. So, I shifted to the from size options provided by Tire. I'm not sure what went wrong. But, explicitly setting and using from and size did the trick for me...

class SiteController < ApplicationController
  def search
    # @results = Painting.search(params[:query])
    options = { :page => (params[:page] || 1), :size => 100 }
    query = params[:query]
    @results = Tire.search ['news','paintings', 'books'], options do
      query { string query }
      from options[:size].to_i * (options[:page].to_i-1)
    end
  end
end

Answer 2

Tire has method for Will-paginate gem included in its lib so I would prefer that rather than Kaminari gem. If in any case you still want to be with Kaminari, collect the results of tire search.

@results = @results.all.to_hash

paginate @results