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@roger35972134
Last active December 15, 2017 04:09
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Currency model of cryptoLineBot https://github.com/roger35972134/cryptoLineBot
class Currency < ActiveRecord::Base
require 'open-uri'
def self.get_currency
begin
books = Nokogiri::HTML(open("https://www.coingecko.com/en"))
name = []
abbreviation = []
rate = []
exchange = []
books.css('.coin-content-name').each do |link|
name.push link.content
end
books.css('.coin-crypto-symbol').each do |link|
abbreviation.push link.content
end
books.css('.stat-percent').each do |link|
rate.push link.content
end
books.css('.currency-exchangable').each do |link|
s = link.content.split("\n")[1]
exchange.push s
end
(0..name.count-1).each do |i|
currency = Currency.find_by(:name => name[i])
currency = Currency.create(:name => name[i]) if currency.nil?
currency.abbreviation = abbreviation[i]
currency.value = exchange[i*3]
currency.rate = rate[i]
currency.market_exchange = exchange[i*3+2]
currency.save
end
rescue OpenURI::HTTPError => e
return "Server Error"
end
return "OK"
end
def self.search_by_abbreviation(abbreviation)
if get_currency == "OK"
c = Currency.find_by(:abbreviation => abbreviation)
unless c.nil?
res = "貨幣: #{c.name}\n價格: #{c.value}\n市場價值: #{c.market_exchange}"
else
res = "請輸入正確的貨幣代號,例如:BTC (Bitcoin)!"
end
else
res = "伺服器目前維護中...\n請稍候再試,謝謝您的支持(oops)"
end
res
end
end
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