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December 15, 2017 04:09
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Currency model of cryptoLineBot https://github.com/roger35972134/cryptoLineBot
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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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