Class: Excoin::Market::Exchange::Trades

Inherits:
Array
  • Object
show all
Defined in:
lib/exchange/trades.rb

Instance Method Summary collapse

Constructor Details

#initialize(exchange) ⇒ Trades

Returns a new instance of Trades.



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# File 'lib/exchange/trades.rb', line 3

def initialize(exchange)
  @currency = exchange.currency
  @commodity = exchange.commodity
  self.update
end

Instance Method Details

#add(trade_data) ⇒ Object 



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# File 'lib/exchange/trades.rb', line 46

def add(trade_data)
  begin
    unless trade_data.has_key?("currency")
      trade_data.merge!({"currency" => @currency, "commodity" => @commodity})
    end
    self.insert(0, Excoin::Market::Exchange::Trade.new(trade_data))
  rescue
    puts "Error in Excoin::Market::Exchange::Trades.add"
    puts trade_data
  end
end

#buys ⇒ Object 



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# File 'lib/exchange/trades.rb', line 22

def buys
  self.select{|trade| trade.type == "BUY"}
end

#highest(type = nil) ⇒ Object 



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# File 'lib/exchange/trades.rb', line 30

def highest(type = nil)
  unless type
    self.max_by{|trade| trade.price}
  else
    self.select{|trade| trade.type == type.upcase}.max_by{|trade| trade.price}
  end
end

#lowest(type = nil) ⇒ Object 



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# File 'lib/exchange/trades.rb', line 38

def lowest(type = nil)
  unless type
    self.min_by{|trade| trade.price}
  else
    self.select{|trade| trade.type == type.upcase}.min_by{|trade| trade.price}
  end
end

#sells ⇒ Object 



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# File 'lib/exchange/trades.rb', line 26

def sells
  self.select{|trade| trade.type == "SELL"}
end

#trim(number) ⇒ Object 



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# File 'lib/exchange/trades.rb', line 58

def trim(number)
  self.pop(number)
end

#update(limit_type = "count", limit = 100) ⇒ Object 



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# File 'lib/exchange/trades.rb', line 9

def update(limit_type = "count", limit = 100)
  self.clear
  trade_data = self.get_recent(@currency, @commodity, limit_type, limit)
  begin
    trade_data['trades'].each do |trade|
      self.push(Excoin::Market::Exchange::Trade.new(trade))
    end
  rescue
    puts "Error in Excoin::Market::Exchange::Trades.update"
    puts trade_data
  end
end