如何从后端类的前端访问 params[:name]答案

【问题标题】：How to access params[:name] from the front-end inside of a class in the back-end如何从后端类的前端访问 params[:name]
【发布时间】：2015-12-22 04:54:49
【问题描述】：

我如何访问我的session[:name]，它位于我的 Sinatra 应用程序的前端，在我在后端的一个类中？我想这样做，这样我就可以将我的所有消息（人们所说的）存储在一个类中，以便能够快速更改我的后端消息，这样我就可以根据需要进行更改，而无需切换整个前端在那里编码。

这里是前端部分：

post '/startgames' do

  play = params[:playgame]
  session[:name] = params[:name]
  session[:age] = params[:age].to_i

  if play == "Joe's Trippy Adventure Game" && session[:age] > 17 
    erb :trippygame1, :locals => {:message1 => "Great #{session[:name]} you are old enough to Play Joe's Trippy Adventure Game.",
                      :message2 => "One day #{session[:name]} is sitting around Smoking a bong when someone knocks on the door.", 
                      :message3 => "Do you get up and answer it?"}
  elsif play == "Joe's Trippy Adventure Game" && session[:age] < 17 
    erb     erb :safari1, :locals => {:message1 => "#{session[:name]} You are to young to play Joe's Trippy game how about a nice Lepoard adventure game?", :age => ""}
  elsif play == "Jade's Safari Adventure Game" && session[:age] < 17
    erb :safari1, :locals => {:message1 => "#{session[:name]} Chose to play Jade's Safari Adventure Game.", :age =>""}
  else play == "Jade's Safari Adventure Game" && session[:age] > 17
    erb :safari1, :locals => {:age => "Hey man Aren't You a little old to play this type of game?",
                  :message1 => "#{session[:name]} Chose to play Jade's Safari Adventure Game."}
  end
end

这里是后端部分：

class Start_messages


  def welcome
    "Welcome To Joe's Games."
    end

  def name_age
    "Enter your name & age to start."
    end

  def to_start_jade
    "So you wanna play Jade's Safari Adventure game ?"
  end


  def to_start_joe
    "If you want to play Joe's Trippy Adventure Game"
  end

  def start_joe
      "Great #{session[:name]} you are old enough to Play Joe's Trippy Adventure Game."
  end

end

我真的希望能够将所有消息保存在一个类中，而不是在前端硬编码。另外，我在后端测试它们会更容易，因为我还没有开始测试前端的东西......我正在学习 TDD 所以测试测试测试:)

【问题讨论】：

听起来您只需要参数化消息，例如，搜索“sinatra i18n”或推出您自己的不太复杂的解决方案，例如，您的消息将不是简单的字符串，而是模板或方法将参数传递给。

标签： ruby sinatra

【解决方案1】：

谢谢戴夫，你的建议让我朝着正确的方向前进。这就是我所做的，因为它会帮助别人。这部分是给后端的

def start_joe(name)
    "Great #{name} you are old enough to Play Joe's Trippy Adventure Game."
end

def start_jade(name)
    "#{name} Chose to play Jade's Safari Adventure Game."
end

def too_young(name)
    "#{name} You are too young to play Joe's Trippy game how about a nice Lepoard adventure game?"
end

def too_old(name)
    "Hey #{name} Aren't You a little old to play this type of game?"
end

用于前端。

 post '/startgames' do

play = params[:playgame]
session[:name] = params[:name]
session[:age] = params[:age].to_i
name = session[:name]
if play == "Joe's Trippy Adventure Game" && session[:age] > 17 
        erb :trippygame1, :locals => {:message1 => message.start_joe(name),
                                      :message2 => "One day #{session[:name]} is sitting around Smoking a bong when someone knocks on the door.", 
                                      :message3 => "Do you get up and answer it?"}
elsif play == "Joe's Trippy Adventure Game" && session[:age] < 17 
        erb     erb :safari1, :locals => {:message1 => message.too_young(name) , :age => ""}
elsif play == "Jade's Safari Adventure Game" && session[:age] < 17
        erb :safari1, :locals => {:message1 => message.start_jade(name), :age =>""}
else play == "Jade's Safari Adventure Game" && session[:age] > 17
        erb :safari1, :locals => {:age => message.too_old(name),
                                  :message1 => message.start_jade(name)}
   end
end

现在仍在进行中，但感谢您的建议，现在我不知道为什么我没有想到这个

【讨论】：