Module: RSolrExt::Response::Select::Facets

Included in:
RSolrExt::Response::Select
Defined in:
lib/rsolr_ext/response/select.rb

Defined Under Namespace

Classes: Facet, FacetValue

Instance Method Summary collapse

Instance Method Details

#facet_by_field_name(name) ⇒ Object

pass in a facet field name and get back a Facet instance



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# File 'lib/rsolr_ext/response/select.rb', line 84

def facet_by_field_name(name)
  @facets_by_field_name ||= {}
  @facets_by_field_name[name] ||= (
    facets.detect{|facet|facet.field.to_s == name.to_s}
  )
end

#facet_counts ⇒ Object 



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# File 'lib/rsolr_ext/response/select.rb', line 91

def facet_counts
  @facet_counts ||= self[:facet_counts] || {}
end

#facet_fields ⇒ Object

Returns the hash of all the facet_fields (ie: => [‘true’, 123, ‘false’, 20]



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# File 'lib/rsolr_ext/response/select.rb', line 96

def facet_fields
  @facet_fields ||= facet_counts[:facet_fields] || {}
end

#facet_queries ⇒ Object

Returns all of the facet queries



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# File 'lib/rsolr_ext/response/select.rb', line 101

def facet_queries
  @facet_queries ||= facet_counts[:facet_queries] || {}
end

#facets ⇒ Object

end “caches” the result in the @facets instance var



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# File 'lib/rsolr_ext/response/select.rb', line 66

def facets
  # memoize!
  @facets ||= (
    facet_fields.inject([]) do |acc,(facet_field_name,values_and_hits_list)|
      acc << facet = Facet.new(facet_field_name)
      # the values_and_hits_list is an array where a value is immediately followed by it's hit count
      # so we shift off an item (the value)
      while value = values_and_hits_list.shift
        # and then shift off the next to get the hit value
        facet.values << FacetValue.new(value, values_and_hits_list.shift)
        # repeat until there are no more pairs in the values_and_hits_list array
      end
      acc
    end
  )
end