Class: DbClustering::DatasourceAdapters::ActiveRecord

Inherits:
Object
  • Object
show all
Defined in:
lib/datasource_adapters/active_record.rb

Instance Method Summary collapse

Constructor Details

#initialize(relation:, vector_params: nil) ⇒ ActiveRecord

Returns a new instance of ActiveRecord.



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# File 'lib/datasource_adapters/active_record.rb', line 5

def initialize(relation:, vector_params: nil)
  @relation = relation
  @vector_params = vector_params
end

Instance Method Details

#iterate_all_points ⇒ Object 



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# File 'lib/datasource_adapters/active_record.rb', line 10

def iterate_all_points
  points_count = @relation.count
  current_index = 0

  @relation.find_each do |datasource_point|
    point = DbClustering::Models::Point.new(datasource_point: datasource_point, vector_params: @vector_params)
    yield(point, current_index, points_count)
    current_index += 1
  end
end

#neighbors(point:, distance_metric:, max_distance:) ⇒ Object 



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# File 'lib/datasource_adapters/active_record.rb', line 21

def neighbors(point:, distance_metric:, max_distance:)
  neighbors = []

  @relation.find_each do |neighbor_candidate|
    candidate_point = DbClustering::Models::Point.new(datasource_point: neighbor_candidate, vector_params: @vector_params)

    if distance_metric.distance(point.vector, candidate_point.vector) <= max_distance
      neighbors << candidate_point
    end
  end

  neighbors
end