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