/
index_set.rb
78 lines (61 loc) · 1.64 KB
/
index_set.rb
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class ThinkingSphinx::IndexSet
include Enumerable
def self.reference_name(klass)
@cached_results ||= {}
@cached_results[klass.name] ||= klass.name.underscore.to_sym
end
delegate :each, :empty?, :to => :indices
def initialize(options = {}, configuration = nil)
@options = options
@index_names = options[:indices] || []
@configuration = configuration || ThinkingSphinx::Configuration.instance
end
def ancestors
classes_and_ancestors - classes
end
def to_a
indices
end
private
attr_reader :configuration, :options
def all_indices
configuration.preload_indices
configuration.indices
end
def classes
options[:classes] || []
end
def classes_specified?
classes.any? || references_specified?
end
def classes_and_ancestors
@classes_and_ancestors ||= classes.collect { |model|
model.ancestors.take_while { |klass|
klass != ActiveRecord::Base
}.select { |klass|
klass.class == Class
}
}.flatten
end
def index_names
options[:indices] || []
end
def indices
return all_indices.select { |index|
index_names.include?(index.name)
} if index_names.any?
everything = classes_specified? ? indices_for_references : all_indices
everything.reject &:distributed?
end
def indices_for_references
all_indices.select { |index| references.include? index.reference }
end
def references
options[:references] || classes_and_ancestors.collect { |klass|
ThinkingSphinx::IndexSet.reference_name(klass)
}
end
def references_specified?
options[:references] && options[:references].any?
end
end