Class: Helper

Inherits:
Encoder show all
Defined in:
lib/eba/helper.rb

Direct Known Subclasses

BCB

Instance Method Summary collapse

Methods inherited from Encoder

#encode

Constructor Details

#initialize ⇒ Helper

Returns a new instance of Helper.



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# File 'lib/eba/helper.rb', line 5

def initialize()
end

Instance Method Details

#build_bcb_data(name, code, periodicity, unit, day, month, year, value, is_unseasoned) ⇒ Object 



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# File 'lib/eba/helper.rb', line 8

def build_bcb_data(name, code, periodicity, unit, day, month, year, value, is_unseasoned)
  if name[" - com ajuste sazonal"] != nil then
    is_unseasoned = true

    if is_unseasoned then
      name.slice!(" - com ajuste sazonal")
    end   
  end

  encoded_name = encode(name)
  encoded_periodicity = encode(periodicity)
  encoded_unit = encode(unit)
  encoded_day = day
  encoded_month = month
  encoded_year = year
  encoded_value = encode(value)
  
  return Data_bcb.new(encoded_name, code, encoded_periodicity,
                     encoded_unit, encoded_day, encoded_month,
                     encoded_year, encoded_value, is_unseasoned)
end

#extract_an_item(serie, code, base_data, data_collection) ⇒ Object 



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# File 'lib/eba/helper.rb', line 45

def extract_an_item(serie, code, base_data, data_collection)
  # recover identifying data from the getLastValue method,
  # as the get_valores_series_xml desn't have identifying data
  # as series name, periodicity, etc. 
 
  if serie.inspect["name=\"ID\" value=\"#{code}\""] != nil then
    serie.css("ITEM").each do |item|
      dia = "01"
      mes = "1"
      ano = "1"
      data = item.css("DATA").text.split("/")

      if base_data.periodicity == 'D' then
        dia = data[0]
        mes = data[1]
        ano = data[2]
      else
        mes = data[0]
        ano = data[1]
      end 

      data_collection << build_bcb_data(base_data.name, code, 
                                                base_data.periodicity, 
                                                base_data.unit, 
                                                dia, mes, ano, 
                                                item.css("VALOR").text,
                                                base_data.seasonally_adjusted)
    end
  end
end

#purge_invalid_series(array_of_codes, hash_last_values) ⇒ Object

Removes all invalid series from an array.

An invalid series has last value.



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# File 'lib/eba/helper.rb', line 33

def purge_invalid_series(array_of_codes, hash_last_values)
  result = []

  array_of_codes.each do |code|
    if hash_last_values[code] != nil then
      result << code
    end
  end

  return result 
end