Class: ElasticMapper::MultiSearch

Inherits:
Object
  • Object
show all
Defined in:
lib/elastic_mapper/multi_search.rb

Overview

search across multiple models at the same time. NO WAY!

Instance Method Summary collapse

Constructor Details

#initialize(obj_map) ⇒ MultiSearch

takes a hash lookup which maps from a mapping name on to an ActiveRecord model.



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# File 'lib/elastic_mapper/multi_search.rb', line 7

def initialize(obj_map)
  @obj_map = obj_map # used to create classes from mappings.
  @_mapping_name = @obj_map.keys.join(',')
  self.extend(ElasticMapper::Search::ClassMethods)
end

Instance Method Details

#find(ids_hash) ⇒ Object

receives queries in the form: 

id: "#{obj._type_#ElasticMapper::MultiSearch.objobj.id",
obj_id: obj.id,
type: obj._type

}



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# File 'lib/elastic_mapper/multi_search.rb', line 19

def find(ids_hash)
  results = {}

  # 1. iterate over each active model we care about.
  # 2. perform a bulk lookup based on id.
  # 3. map everything onto results hash, so that we can maintain sort order.
  @obj_map.keys.each do |key|
    ids = ids_hash.select {|id_hash| id_hash[:type] == key.to_s}.map {|obj| obj[:obj_id]}
    next unless ids.count > 0
    @obj_map[key].find(ids).each do |record|
      results["#{key}_#{record.id}"] = record
    end
  end

  results
end