空数据库时创建项目报错问题，原redmine的项目按字母排序功能导致，现在项目没有按字母排序，故将之注释掉

app/controllers/projects_controller.rb

@@ -468,8 +468,8 @@ class ProjectsController < ApplicationController
 
   def new
     @issue_custom_fields = IssueCustomField.sorted.all
-    @trackers            = Tracker.sorted.all
-    @project                 = Project.new
+    @trackers = Tracker.sorted.all
+    @project = Project.new
     @project.safe_attributes = params[:project]
     render :layout => 'base'
   end

app/models/project.rb

@@ -123,7 +123,8 @@ class Project < ActiveRecord::Base
   # reserved words
   validates_exclusion_of :identifier, :in => %w( new )
 
-  after_save :update_position_under_parent, :if => Proc.new {|project| project.name_changed?}
+  #此代码功能：为原redmine中项目的树形结构按名称首字母排序，本系统项目非树形结构，且项目排序方式无按首字母排序，另该代码执行会使空数据库时创建项目时出异常故注释掉
+  #after_save :update_position_under_parent, :if => Proc.new {|project| project.name_changed?}
   after_save :update_inherited_members, :if => Proc.new {|project| project.inherit_members_changed?}
   # 创建project之后默认创建一个board，之后的board去掉了board的概念
   after_create :create_board_sync

db/schema.rb

@@ -437,14 +437,14 @@ ActiveRecord::Schema.define(:version => 20140826072838) do
     t.string   "web_title"
     t.string   "title"
     t.text     "description"
+    t.string   "page_type"
     t.datetime "created_at",                    :null => false
     t.datetime "updated_at",                    :null => false
-    t.string   "page_type"
     t.integer  "sort_type"
-    t.integer  "show_course",  :default => 1
-    t.integer  "show_contest", :default => 1
     t.integer  "image_width",  :default => 107
     t.integer  "image_height", :default => 63
+    t.integer  "show_course",  :default => 1
+    t.integer  "show_contest", :default => 1
   end
 
   create_table "forums", :force => true do |t|
@@ -976,11 +976,10 @@ ActiveRecord::Schema.define(:version => 20140826072838) do
     t.string   "url"
     t.string   "title"
     t.integer  "share_type"
-    t.datetime "created_at",  :null => false
-    t.datetime "updated_at",  :null => false
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
     t.integer  "project_id"
     t.integer  "user_id"
-    t.string   "description"
   end
 
   create_table "softapplications", :force => true do |t|
@@ -1086,8 +1085,8 @@ ActiveRecord::Schema.define(:version => 20140826072838) do
     t.integer  "zip_code"
     t.datetime "created_at",         :null => false
     t.datetime "updated_at",         :null => false
-    t.string   "technical_title"
     t.integer  "identity"
+    t.string   "technical_title"
     t.string   "student_id"
     t.string   "teacher_realname"
     t.string   "student_realname"
@@ -1145,6 +1144,9 @@ ActiveRecord::Schema.define(:version => 20140826072838) do
     t.integer  "active"
     t.datetime "created_at",    :null => false
     t.datetime "updated_at",    :null => false
+    t.integer  "level"
+    t.integer  "file"
+    t.integer  "issue"
   end
 
   create_table "user_statuses", :force => true do |t|