菜鳥幫助重新格式化如果對案件的Rails

Question

嗨誰能幫助我重構這個代碼到case語句在Ruby中

def can_save? 
    if signed_in? 
     @user.updating_password = false 
     return true if @greeting.save & @user.save 
    elsif !guest_user? & @greeting.valid? & @user.valid? 
     sign_in(@user) if @greeting.save & @user.save 
     return true 
    elsif guest_user? 
     if !params[:user][:email].blank? & (@user.valid? & @greeting.valid?) 
     if (@greeting.save & @user.save) 
      sign_in(@user) 
      return true 
     end 
     elsif params[:user][:email].blank? 
     return true if @greeting.save 
     end 
    end 
    end 

Answer 1

def can_save? 
    validation_check 

    if signed_in? 
    @user.updating_password = false 
    else 
    unless params[:user][:email].blank? 
     sign_in(@user) 
    end 
    end 

end 


private 

def validation_check 
    if @user.valid? && @greeting.valid? 
    @user.save 
    @greeting.save 
    else 
    return 
    end 
end