Class: Sunspot::Search::FieldFacet

Inherits:
QueryFacet show all
Defined in:
lib/sunspot/search/field_facet.rb

Overview

A FieldFacet is a facet whose rows are all values for a certain field, in contrast to a QueryFacet, whose rows represent arbitrary queries.

Instance Attribute Summary

Attributes inherited from QueryFacet

#name

Instance Method Summary collapse

Methods inherited from QueryFacet

#add_row

Constructor Details

#initialize(field, search, options) ⇒ FieldFacet

:nodoc:



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# File 'lib/sunspot/search/field_facet.rb', line 8

def initialize(field, search, options) #:nodoc:
  super((options[:name] || field.name).to_sym, search, options)
  @field = field
end

Instance Method Details

#field_name ⇒ Object 



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# File 'lib/sunspot/search/field_facet.rb', line 13

def field_name
  @field.name
end

#populate_instances ⇒ Object

If this facet references a model class, populate the rows with instances of the model class by loading them out of the appropriate adapter.



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# File 'lib/sunspot/search/field_facet.rb', line 57

def populate_instances #:nodoc:
  if reference = @field.reference
    values_hash = rows.inject({}) do |hash, row|
      hash[row.value] = row
      hash
    end
    instances = Adapters::DataAccessor.create(Sunspot::Util.full_const_get(reference)).load_all(
      values_hash.keys
    )
    instances.each do |instance|
      values_hash[Adapters::InstanceAdapter.adapt(instance).id].instance = instance
    end
    true
  end
end

#rows(options = {}) ⇒ Object

Get the rows returned for this facet.

Options (options)

:verify

Only return rows for which the referenced object exists in the data store. This option is ignored unless the field associated with this facet is configured with a :references argument.

Returns

Array

Array of FacetRow objects



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# File 'lib/sunspot/search/field_facet.rb', line 31

def rows(options = {})
  if options[:verify]
    verified_rows
  else
    @rows ||=
      begin
        rows = super
        has_query_facets = !rows.empty?
        if @search.facet_response['facet_fields']
          if data = @search.facet_response['facet_fields'][key]
            data.each_slice(2) do |value, count|
              row = FacetRow.new(@field.cast(value), count, self)
              rows << row
            end
          end
        end
        sort_rows!(rows) if has_query_facets
        rows
      end
  end
end