allow gift upgrades for accounts

app/controllers/user_upgrades_controller.rb

@@ -1,17 +1,17 @@
 class UserUpgradesController < ApplicationController
   before_filter :member_only, :only => [:new, :show]
-  helper_method :encrypt_custom, :coinbase
+  helper_method :encrypt_custom, :coinbase, :user
   force_ssl :if => :ssl_enabled?
   skip_before_action :verify_authenticity_token, only: [:create]
 
   def create
     if params[:order][:status] == "completed"
       user_id, level = decrypt_custom
-      user = User.find(user_id)
+      member = User.find(user_id)
 
-      if user.level < User::Levels::PLATINUM && level >= User::Levels::GOLD && level <= User::Levels::PLATINUM
+      if member.level < User::Levels::PLATINUM && level >= User::Levels::GOLD && level <= User::Levels::PLATINUM
         CurrentUser.scoped(User.admins.first, "127.0.0.1") do
-          user.promote_to!(level, :skip_feedback => true)
+          member.promote_to!(level, :skip_feedback => true)
         end
       end
     end
@@ -25,17 +25,28 @@ class UserUpgradesController < ApplicationController
     end
   end
 
+  def gift
+  end
+
   def show
   end
 
   def encrypt_custom(level)
-    crypt.encrypt_and_sign("#{CurrentUser.user.id},#{level}")
+    crypt.encrypt_and_sign("#{user.id},#{level}")
   end
 
   def coinbase
     @coinbase_api ||= Coinbase::Client.new(Danbooru.config.coinbase_api_key, Danbooru.config.coinbase_api_secret)
   end
 
+  def user
+    if params[:user_id]
+      User.find(params[:user_id])
+    else
+      CurrentUser.user
+    end
+  end
+
   private
 
   def decrypt_custom

app/views/user_upgrades/_coinbase_payment.html.erb

@@ -1,8 +1,14 @@
 <p>You can pay with Bitcoin. You will pay either $20 USD or $40 USD equivalent in Bitcoin. Danbooru uses <a href="https://www.coinbase.com">Coinbase</a> as a payment intermediary so none of your personal information will be stored on the site.</p>
 
-<% if CurrentUser.user.level < User::Levels::GOLD %>
+<% if params[:user_id] %>
+  <p>You are gifting this account upgrade to <%= link_to user.pretty_name, user_path(params[:user_id]) %>.</p>
+<% else %>
+  <p>You can also upgrade someone else's account for the same price. The easiest way is to go to their profile page and look for a "Gift Upgrade" link.</p>
+<% end %>
+
+<% if user.level < User::Levels::GOLD %>
   <%= raw coinbase.create_button("Upgrade to Gold", 20.to_money("USD"), "Upgrade your Basic Account to a Gold Account", encrypt_custom(User::Levels::GOLD), :button => {:style => "custom_small", :text => "Upgrade to Gold", :callback_url => user_upgrade_path(:only_path => false, :host => Danbooru.config.hostname, :protocol => "https")}).embed_html %>
   <%= raw coinbase.create_button("Upgrade to Platinum", 40.to_money("USD"), "Upgrade your Basic Account to a Platinum Account", encrypt_custom(User::Levels::PLATINUM), :button => {:style => "custom_small", :text => "Upgrade to Platinum", :callback_url => user_upgrade_path(:only_path => false, :host => Danbooru.config.hostname, :protocol => "https")}).embed_html %>
-<% elsif CurrentUser.level < User::Levels::PLATINUM %>
+<% elsif user.level < User::Levels::PLATINUM %>
   <%= raw coinbase.create_button("Upgrade to Platinum", 20.to_money("USD"), "Upgrade your Gold Account to a Platinum Account", encrypt_custom(User::Levels::PLATINUM), :button => {:style => "custom_small", :text => "Upgrade to Platinum", :callback_url => user_upgrade_path(:only_path => false, :host => Danbooru.config.hostname, :protocol => "https")}).embed_html %>
 <% end %>

app/views/user_upgrades/new.html.erb

@@ -1,7 +1,8 @@
 <div id="c-users">
   <div id="a-upgrade-information">
-    <h1>Upgrade Your Account</h1>
+    <h1>Upgrade Account</h1>
 
+    <% unless params[:user_id] %>
       <p class="copy">Annoyed by ads? Want more searching power? Upgrade your account and become a power user of the best database of anime artwork on the internet.</p>
 
       <div id="feature-comparison">
@@ -82,6 +83,7 @@
           </tbody>
         </table>
       </div>
+    <% end %>
 
     <% if Danbooru.config.coinbase_api_key %>
       <%= render "coinbase_payment" %>

app/views/users/_secondary_links.html.erb

@@ -22,7 +22,11 @@
       <% end %>
 
       <% if CurrentUser.is_member? || CurrentUser.is_gold? %>
+        <% if @user.id == CurrentUser.user.id %>
           <li><%= link_to "Upgrade", new_user_upgrade_path %></li>
+        <% else %>
+          <li><%= link_to "Gift Upgrade", new_user_upgrade_path(:user_id => @user.id) %></li>
+        <% end %>
       <% end %>
 
       <% if CurrentUser.is_moderator? %>