Class: ETL::Builder::TimeDimensionBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/etl/builder/time_dimension_builder.rb

Overview

Builder that creates a simple time dimension.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TimeDimensionBuilder

Returns a new instance of TimeDimensionBuilder.



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# File 'lib/etl/builder/time_dimension_builder.rb', line 5

def initialize
  # Returns an array of hashes representing records in the dimension. The values for each record are 
  # accessed by name.
  def build(options={})
    records = []
    0.upto(23) do |t_hour|
      0.upto(59) do |t_minute|
        0.upto(59) do |t_second|
          t_hour_string = t_hour.to_s.rjust(2, '0')
          t_minute_string = t_minute.to_s.rjust(2, '0')
          t_second_string = t_second.to_s.rjust(2, '0')
          record = {}
          record[:hour] = t_hour
          record[:minute] = t_minute
          record[:second] = t_second
          record[:minute_description] = "#{t_hour_string}:#{t_minute_string}"
          record[:full_description] = "#{t_hour_string}:#{t_minute_string}:#{t_second_string}"
          records << record
        end
      end
    end
    records
  end
end

Instance Method Details

#build(options = {}) ⇒ Object

Returns an array of hashes representing records in the dimension. The values for each record are accessed by name.



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# File 'lib/etl/builder/time_dimension_builder.rb', line 8

def build(options={})
  records = []
  0.upto(23) do |t_hour|
    0.upto(59) do |t_minute|
      0.upto(59) do |t_second|
        t_hour_string = t_hour.to_s.rjust(2, '0')
        t_minute_string = t_minute.to_s.rjust(2, '0')
        t_second_string = t_second.to_s.rjust(2, '0')
        record = {}
        record[:hour] = t_hour
        record[:minute] = t_minute
        record[:second] = t_second
        record[:minute_description] = "#{t_hour_string}:#{t_minute_string}"
        record[:full_description] = "#{t_hour_string}:#{t_minute_string}:#{t_second_string}"
        records << record
      end
    end
  end
  records
end