Class: Elasticfusion::Search::Peeker

Inherits:
Object
  • Object
show all
Defined in:
lib/elasticfusion/search/peeker.rb

Overview

An instance of Peeker can return consecutive (previous and next) records for a given record and an instance of Search::Wrapper.

Under the hood, it uses search_after parameters (see www.elastic.co/guide/en/elasticsearch/reference/5.2/search-request-search-after.html).

Instance Method Summary collapse

Constructor Details

#initialize(wrapper) ⇒ Peeker

Returns a new instance of Peeker.



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# File 'lib/elasticfusion/search/peeker.rb', line 11

def initialize(wrapper)
  @wrapper = wrapper
end

Instance Method Details

#next_record(current_record) ⇒ Object 



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# File 'lib/elasticfusion/search/peeker.rb', line 15

def next_record(current_record)
  request = @wrapper.elasticsearch_request

  first_record_after(current_record, request)
end

#previous_record(current_record) ⇒ Object 



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# File 'lib/elasticfusion/search/peeker.rb', line 21

def previous_record(current_record)
  request = @wrapper.elasticsearch_request
  request[:sort] = reverse_sort request[:sort]

  first_record_after(current_record, request)
end