需要“字符串”为：字符串

Question

我需要让我的“串”到：字符串

目前，我有这个，给这样的：

Holidays.between(from, to, ":de") 

但我需要这个

Holidays.between(from, to, :de) 

请帮忙！

Answer 1

假设你正在使用的Holidays宝石，只是从你的字符串中删除冒号，即使用"de"代替":de"。宝石处理转换为您提供：

require 'holidays' 

from = Date.civil(2014, 1, 1) 
to = Date.civil(2014, 12, 31) 

Holidays.between(from, to, "de") 
#=> [{:date=>#<Date: 2014-01-01 ((2456659j,0s,0n),+0s,2299161j)>, :name=>"Neujahrstag", :regions=>[:de]}, {:date=>#<Date: 2014-04-18 ((2456766j,0s,0n),+0s,2299161j)>, :name=>"Karfreitag", :regions=>[:de]}, {:date=>#<Date: 2014-04-21 ((2456769j,0s,0n),+0s,2299161j)>, :name=>"Ostermontag", :regions=>[:de]}, {:date=>#<Date: 2014-05-01 ((2456779j,0s,0n),+0s,2299161j)>, :name=>"Tag der Arbeit", :regions=>[:de]}, {:date=>#<Date: 2014-05-29 ((2456807j,0s,0n),+0s,2299161j)>, :name=>"Christi Himmelfahrt", :regions=>[:de]}, {:date=>#<Date: 2014-06-09 ((2456818j,0s,0n),+0s,2299161j)>, :name=>"Pfingstmontag", :regions=>[:de]}, {:date=>#<Date: 2014-10-03 ((2456934j,0s,0n),+0s,2299161j)>, :name=>"Tag der Deutschen Einheit", :regions=>[:de]}, {:date=>#<Date: 2014-12-25 ((2457017j,0s,0n),+0s,2299161j)>, :name=>"1. Weihnachtstag", :regions=>[:de]}, {:date=>#<Date: 2014-12-26 ((2457018j,0s,0n),+0s,2299161j)>, :name=>"2. Weihnachtstag", :regions=>[:de]}] 

目前还不清楚其中结肠来自摆在首位（看起来像一个bug），但你也许应该修复它在那里，而不是转换的字符串。

Answer 2

String#to_sym是你需要呼吁串to_sym什么，它成为一个符号

你需要将其转换为字符串（以获得所需的确切标志），所以低于之前删除字符串中的:会做到这一点

Holidays.between(from, to, ":de".sub(":","").to_sym) #=> Holidays.between(from, to, :de)