生成邀请码

app/models/project.rb

@@ -904,6 +904,23 @@ class Project < ActiveRecord::Base
     User.find(self.user_id)
   end
 
+  # 延迟生成邀请码
+  def invite_code
+    return generate_invite_code
+  end
+
+  # 生成邀请码
+  CODES = %W(2 3 4 5 6 7 8 9 A B C D E F G H J K L N M O P Q R S T U V W X Y Z)
+  def generate_invite_code
+    code = read_attribute(:invite_code)
+    if !code || code.size <5
+      code = CODES.sample(5).join
+      return generate_invite_code if Project.where(invite_code: code).present?
+      update_attribute(:invite_code, code)
+    end
+    code
+  end
+
   private
 
   def after_parent_changed(parent_was)

app/views/layouts/base_projects.html.erb

@@ -53,7 +53,7 @@
           <%= image_tag(url_to_avatar(@project), :width => "60", :height => "60") %>
         </div>
         <div class="pr_info_id fl mb5 f14">
-          <%= l(:label_project_id)%><%= @project.id %>
+          <%= l(:label_project_ivite_code)%><%= @project.generate_invite_code %>
         </div>
         <!--关注、申请加入/退出项目-->
         <div id="join_exit_project_div">

config/locales/projects/zh.yml

@@ -48,6 +48,7 @@ zh:
   #  左边栏
   #           
   label_project_id: "项目ID:"
+  label_project_ivite_code: "邀请码:"
 
   label_agree_join_project: 同意加入
   label_apply_project: "+申请加入"

db/migrate/20160725062343_add_invite_code_to_project.rb

@@ -0,0 +1,5 @@
+class AddInviteCodeToProject < ActiveRecord::Migration
+  def change
+    add_column :projects, :invite_code, :string
+  end
+end