diff --git a/app/controllers/welcome_controller.rb b/app/controllers/welcome_controller.rb
index bd850ac6..e5a168f6 100644
--- a/app/controllers/welcome_controller.rb
+++ b/app/controllers/welcome_controller.rb
@@ -31,6 +31,9 @@ class WelcomeController < ApplicationController
 
   DCODES = %W(2 3 4 5 6 7 8 9 a b c f e f g h i j k l m n o p q r s t u v w x y z)
   def local_init
+    LocalSubject.delete_all
+    LocalStage.delete_all
+    LocalStageShixun.delete_all
     LocalShixun.delete_all
     LocalMirrorRepository.delete_all
     LocalShixunTagRepertoire.delete_all
@@ -63,157 +66,117 @@ class WelcomeController < ApplicationController
     end
   end
 
-  def shixun_to_local
-    identifiers = params[:identifiers].split(",")
-    shixuns = Shixun.where(identifier: identifiers)
-    # 不重复导入
+  def subject_to_local
+    subject_ids = params[:subject_ids].split(",")
+    subjects = Subject.where(id: subject_ids)
     ActiveRecord::Base.transaction do
       begin
-        shixuns.each do |shixun|
-          if LocalShixun.where(shixun_id: shixun.id).blank?
-
-            local_shixun = LocalShixun.create!(name: shixun.name, description: shixun.description, user_id: User.current.id, status: 0,
-                                               trainee: shixun.trainee, webssh: shixun.webssh, multi_webssh: shixun.multi_webssh,
-                                               can_copy: shixun.can_copy, identifier: generate_identifier, shixun_id: shixun.id,
-                                               use_scope: shixun.use_scope, visits: 1, evaluate_script: shixun.evaluate_script,
-                                               local_giturl: shixun.git_url)
-
-            # 同步镜像
-            if shixun.mirror_repositories.present?
-              shixun.mirror_repositories.each do |mirror|
-                # 本地版的mirror id和线上的可能不一样，所以按名字取，然后再存
-                # local_mirror = MirrorRepository.where(type_name: mirror.type_name).first.try(:id)
-                LocalMirrorRepository.create!(:local_shixun_id => local_shixun.id, :mirror_repository_id => mirror.id, type_name: mirror.type_name)
-              end
-            end
-
-            # 同步技术标签
-            shixun.shixun_tag_repertoires.each do |str|
-              LocalShixunTagRepertoire.create!(:tag_repertoire_id => str.tag_repertoire_id, :local_shixun_id => local_shixun.id)
-            end
-
-            # 不需要同步版本库，版本库应该是从本地导入到线上的时候由线上版本创建的
-
-            # 同步复制关卡
-            if shixun.challenges.present?
-              shixun.challenges.each do |challenge|
-                new_challenge = LocalChallenge.new
-                new_challenge.attributes = challenge.attributes.dup.except("id","shixun_id","user_id", "test_set_score")
-                new_challenge.local_shixun_id = local_shixun.id
-                new_challenge.save!
-                # 评测题，选择题暂时不考虑
-                # 同步测试集
-                if challenge.test_sets.present?
-                  challenge.test_sets.each do |test_set|
-                    new_test_set = LocalTestSet.new
-                    new_test_set.attributes = test_set.attributes.dup.except("id","challenge_id")
-                    new_test_set.local_challenge_id = new_challenge.id
-                    new_test_set.save!
-                  end
-                end
-                # 同步关卡标签
-                challenge_tags = ChallengeTag.where("challenge_id =? and challenge_choose_id is null", challenge.id)
-                if challenge_tags.present?
-                  challenge_tags.each do |challenge_tag|
-                    LocalChallengeTag.create!(:local_challenge_id => new_challenge.id, :name => challenge_tag.try(:name))
+        subjects.each do |subject|
+          if LocalSubject.where(subject_id: subject.id).blank?
+
+            local_subject = LocalSubject.create!(name: subject.name, description: subject.description, status: 0,
+                                                 learning_notes: subject.learning_notes, introduction: subject.introduction,
+                                                 stages_count: subject.stages_count, stage_shixuns_count: subject.stage_shixuns_count,
+                                                 subject_id: subject.id, shixuns_count: subject.shixuns_count)
+
+            # 同步复制章节
+            if subject.stages.present?
+              subject.stages.each do |stage|
+                new_stage = LocalStage.new
+                new_stage.attributes = stage.attributes.dup.except("id","user_id")
+                new_stage.local_subject_id = local_subject.id
+                new_stage.save!
+
+                if stage.stage_shixuns.present?
+                  stage.stage_shixuns.each do |stage_shixun|
+                    new_stage_shixun = LocalStageShixun.new
+                    new_stage_shixun.attributes = stage_shixun.attributes.dup.except("id")
+                    new_stage_shixun.local_subject_id = local_subject.id
+                    new_stage_shixun.local_subject_id = new_stage.id
+                    new_stage_shixun.save!
                   end
                 end
+
+                # 复制实训
+                _shixun_to_local(stage.shixuns)
               end
             end
           end
         end
         render :json => {status: 0, message: "success"}
+
       rescue Exception => e
         logger.error("shixun_local_in ##{e.message}")
         render :json => {status: -1, message: "error，#{e.message}"}
         raise ActiveRecord::Rollback
       end
-
     end
   end
 
-  def local_to_shixun
+  def local_to_subject
     ActiveRecord::Base.transaction do
-      shixun_list = []
-      LocalShixun.find_each do |local_shixun|
-        identifier = generate_identifier
-        shixun = Shixun.create!(name: local_shixun.name, description: local_shixun.description, user_id: User.current.id,
-                                trainee: local_shixun.trainee, webssh: local_shixun.webssh, multi_webssh: local_shixun.multi_webssh,
-                                can_copy: local_shixun.can_copy, identifier: identifier, reset_time: Time.now,
-                                modify_time: Time.now, use_scope: local_shixun.use_scope, visits: 1, evaluate_script: local_shixun.evaluate_script)
-        m = ShixunMember.new(:user_id => User.current.id, :role => 1)
-        shixun.shixun_members << m
-
-        # 同步镜像
-        local_mirrors = LocalMirrorRepository.where(local_shixun_id: local_shixun.id)
-        if local_mirrors.present?
-          local_mirrors.each do |local_mirror|
-            local_mirror_new = MirrorRepository.where(type_name: local_mirror.try(:type_name)).first
-            ShixunMirrorRepository.create!(:shixun_id => shixun.id, :mirror_repository_id => local_mirror_new.id)
-          end
-        end
-
-        # 同步技术标签
-        local_shixun_tags = LocalShixunTagRepertoire.where(local_shixun_id: local_shixun.id)
-        if local_shixun_tags.present?
-          local_shixun_tags.each do |str|
-            ShixunTagRepertoire.create!(:tag_repertoire_id => str.tag_repertoire_id, :shixun_id => shixun.id)
+      subject_list = []
+      LocalSubject.find_each do |local_subject|
+        subject = Subject.create!(name: local_subject.name, description: local_subject.description, user_id: User.current.id,
+                                  status: 0, learning_notes: local_subject.learning_notes, introduction: local_subject.introduction,
+                                  stages_count: local_subject.stages_count, stage_shixuns_count: local_subject.stage_shixuns_count,
+                                  shixuns_count: local_subject.shixuns_count, visits: 1)
+        m = SubjectMember.new(:user_id => User.current.id, :role => 1)
+        subject.subject_members << m
+
+        # 同步章节信息
+        local_stages = LocalStage.where(local_subject_id: local_subject.id)
+        if local_stages.present?
+          local_stages.each do |local_stage|
+            new_stage = Stage.new
+            new_stage.attributes = local_stage.attributes.dup.except("id","local_subject_id","subject_id")
+            new_stage.subject_id = subject.id
+            new_stage.save!
+
+            # 同步章节实训关联表
+            local_stage_shixuns = LocalStageShixun.where(local_stage_id: local_stage.id)
+            local_stage_shixuns.each do |local_stage_shixun|
+              # 先同步实训
+              local_shixun = LocalShixun.where(id: local_stage_shixun.local_shixun_id).first
+              shixun = _local_to_shixun local_shixun if local_shixun.present?
+
+              new_stage_shixun = StageShixun.new
+              new_stage_shixun.position = local_stage_shixun.position
+              new_stage_shixun.stage_id = new_stage.id
+              new_stage_shixun.subject_id = subject.id
+              new_stage_shixun.shixun_id = shixun.try(:id)
+              new_stage_shixun.save!
+            end
           end
         end
+        subject_list << subject.id
+      end
+      render :json => {status: 0, message: "success", identifier: subject_list}
+    end
+  end
 
-        # 创建版本库
-        repository = Repository.new
-        repository.shixun = shixun
-        repository.type = 'Repository::Gitlab'
-        repository.identifier = shixun.identifier.downcase
-        repository.project_id = -1
-        repository.save!
-        s = Trustie::Gitlab::Sync.new
-        s.create_shixun(shixun, repository)
-        raise "版本库创建失败" if shixun.gpid.blank?   # 若和gitlab没同步成功，则抛出异常
-        g = Gitlab.client
-        shixun.update_column(:git_url, g.project(shixun.gpid).path_with_namespace)
-        local_git_path = local_shixun.local_giturl.split('/').last if local_shixun.local_giturl.present?
-        new_giturl = "http://educoder:xinhu1ji2qu3@"+g.project(shixun.gpid).http_url_to_repo.split('//').last
-        # 如果有目录才执行
-        if system("cd tmp/repositories/#{local_git_path}")
-          system("cd tmp/repositories/#{local_git_path};git remote remove origin;git remote add origin #{new_giturl};
-                  git add .;git commit -m '..';git push origin master")
-        end
-
-
-        #  http://Hjqreturn:xinhu1ji2qu3@bdgit.educoder.net/Hjqreturn/pgfqe6ch8.git (fetch)
-
-        # 同步关卡信息
-        local_challenges = LocalChallenge.where(local_shixun_id: local_shixun.id)
-        if local_challenges.present?
-          local_challenges.each do |local_challenge|
-            new_challenge = Challenge.new
-            new_challenge.attributes = local_challenge.attributes.dup.except("id","local_shixun_id","user_id", "test_set_score")
-            new_challenge.user_id = User.current.id
-            new_challenge.shixun_id = shixun.id
-            new_challenge.save!
+  def shixun_to_local
+    identifiers = params[:identifiers].split(",")
+    shixuns = Shixun.where(identifier: identifiers)
+    # 不重复导入
+    ActiveRecord::Base.transaction do
+      begin
+        _shixun_to_local(shixuns)
+        render :json => {status: 0, message: "success"}
+      rescue Exception => e
+        logger.error("shixun_local_in ##{e.message}")
+        render :json => {status: -1, message: "error，#{e.message}"}
+        raise ActiveRecord::Rollback
+      end
 
-            # 同步测试集
-            local_test_sets = LocalTestSet.where(local_challenge_id: local_challenge.id)
-            if local_test_sets.present?
-              local_test_sets.each do |local_test_set|
-                new_test_set = TestSet.new
-                new_test_set.attributes = local_test_set.attributes.dup.except("id","challenge_id")
-                new_test_set.challenge_id = new_challenge.id
-                new_test_set.save!
-              end
-            end
+    end
+  end
 
-            # 同步关卡标签
-            local_challenge_tags = LocalChallengeTag.where(local_challenge_id: local_challenge.id)
-            if local_challenge_tags.present?
-              local_challenge_tags.each do |local_challenge_tag|
-                ChallengeTag.create!(:challenge_id => new_challenge.id, :name => local_challenge_tag.try(:name))
-              end
-            end
-          end
-        end
+  def local_to_shixun
+    ActiveRecord::Base.transaction do
+      shixun_list = []
+      LocalShixun.find_each do |local_shixun|
+        shixun = _local_to_shixun local_shixun
         shixun_list << shixun.identifier
       end
       render :json => {status: 0, message: "success", identifier: shixun_list}
@@ -519,6 +482,148 @@ class WelcomeController < ApplicationController
   end
 
   private
+
+  def _shixun_to_local shixuns
+    shixuns.each do |shixun|
+      if LocalShixun.where(shixun_id: shixun.id).blank?
+
+        local_shixun = LocalShixun.create!(name: shixun.name, description: shixun.description, user_id: User.current.id, status: 0,
+                                           trainee: shixun.trainee, webssh: shixun.webssh, multi_webssh: shixun.multi_webssh,
+                                           can_copy: shixun.can_copy, identifier: generate_identifier, shixun_id: shixun.id,
+                                           use_scope: shixun.use_scope, visits: 1, evaluate_script: shixun.evaluate_script,
+                                           local_giturl: shixun.git_url)
+
+        # 同步更新实践课程中对应的shixun_id
+        LocalStageShixun.where(shixun_id: shixun.id).update_all(local_shixun_id: local_shixun.id)
+
+        # 同步镜像
+        if shixun.mirror_repositories.present?
+          shixun.mirror_repositories.each do |mirror|
+            # 本地版的mirror id和线上的可能不一样，所以按名字取，然后再存
+            # local_mirror = MirrorRepository.where(type_name: mirror.type_name).first.try(:id)
+            LocalMirrorRepository.create!(:local_shixun_id => local_shixun.id, :mirror_repository_id => mirror.id, type_name: mirror.type_name)
+          end
+        end
+
+        # 同步技术标签
+        shixun.shixun_tag_repertoires.each do |str|
+          LocalShixunTagRepertoire.create!(:tag_repertoire_id => str.tag_repertoire_id, :local_shixun_id => local_shixun.id)
+        end
+
+        # 不需要同步版本库，版本库应该是从本地导入到线上的时候由线上版本创建的
+
+        # 同步复制关卡
+        if shixun.challenges.present?
+          shixun.challenges.each do |challenge|
+            new_challenge = LocalChallenge.new
+            new_challenge.attributes = challenge.attributes.dup.except("id","shixun_id","user_id", "test_set_score", "test_set_average", "exec_time", "praises_count")
+            new_challenge.local_shixun_id = local_shixun.id
+            new_challenge.save!
+            # 评测题，选择题暂时不考虑
+            # 同步测试集
+            if challenge.test_sets.present?
+              challenge.test_sets.each do |test_set|
+                new_test_set = LocalTestSet.new
+                new_test_set.attributes = test_set.attributes.dup.except("id","challenge_id","match_rule")
+                new_test_set.local_challenge_id = new_challenge.id
+                new_test_set.save!
+              end
+            end
+            # 同步关卡标签
+            challenge_tags = ChallengeTag.where("challenge_id =? and challenge_choose_id is null", challenge.id)
+            if challenge_tags.present?
+              challenge_tags.each do |challenge_tag|
+                LocalChallengeTag.create!(:local_challenge_id => new_challenge.id, :name => challenge_tag.try(:name))
+              end
+            end
+          end
+        end
+      end
+    end
+  end
+
+  def _local_to_shixun local_shixun
+    identifier = generate_identifier
+    shixun = Shixun.create!(name: local_shixun.name, description: local_shixun.description, user_id: User.current.id,
+                            trainee: local_shixun.trainee, webssh: local_shixun.webssh, multi_webssh: local_shixun.multi_webssh,
+                            can_copy: local_shixun.can_copy, identifier: identifier, reset_time: Time.now,
+                            modify_time: Time.now, use_scope: local_shixun.use_scope, visits: 1, evaluate_script: local_shixun.evaluate_script)
+    m = ShixunMember.new(:user_id => User.current.id, :role => 1)
+    shixun.shixun_members << m
+
+    # 同步镜像
+    local_mirrors = LocalMirrorRepository.where(local_shixun_id: local_shixun.id)
+    if local_mirrors.present?
+      local_mirrors.each do |local_mirror|
+        local_mirror_new = MirrorRepository.where(type_name: local_mirror.try(:type_name)).first
+        ShixunMirrorRepository.create!(:shixun_id => shixun.id, :mirror_repository_id => local_mirror_new.id)
+      end
+    end
+
+    # 同步技术标签
+    local_shixun_tags = LocalShixunTagRepertoire.where(local_shixun_id: local_shixun.id)
+    if local_shixun_tags.present?
+      local_shixun_tags.each do |str|
+        ShixunTagRepertoire.create!(:tag_repertoire_id => str.tag_repertoire_id, :shixun_id => shixun.id)
+      end
+    end
+
+    # 创建版本库
+    repository = Repository.new
+    repository.shixun = shixun
+    repository.type = 'Repository::Gitlab'
+    repository.identifier = shixun.identifier.downcase
+    repository.project_id = -1
+    repository.save!
+    s = Trustie::Gitlab::Sync.new
+    s.create_shixun(shixun, repository)
+    raise "版本库创建失败" if shixun.gpid.blank?   # 若和gitlab没同步成功，则抛出异常
+    g = Gitlab.client
+    shixun.update_column(:git_url, g.project(shixun.gpid).path_with_namespace)
+    local_git_path = local_shixun.local_giturl.split('/').last if local_shixun.local_giturl.present?
+    new_giturl = "http://educoder:xinhu1ji2qu3@"+g.project(shixun.gpid).http_url_to_repo.split('//').last
+    # 如果有目录才执行
+    if system("cd tmp/repositories/#{local_git_path}")
+      system("cd tmp/repositories/#{local_git_path};git remote remove origin;git remote add origin #{new_giturl};
+                  git add .;git commit -m '..';git push origin master")
+    end
+
+
+    #  http://Hjqreturn:xinhu1ji2qu3@bdgit.educoder.net/Hjqreturn/pgfqe6ch8.git (fetch)
+
+    # 同步关卡信息
+    local_challenges = LocalChallenge.where(local_shixun_id: local_shixun.id)
+    if local_challenges.present?
+      local_challenges.each do |local_challenge|
+        new_challenge = Challenge.new
+        new_challenge.attributes = local_challenge.attributes.dup.except("id","local_shixun_id","user_id", "test_set_score")
+        new_challenge.user_id = User.current.id
+        new_challenge.shixun_id = shixun.id
+        new_challenge.save!
+
+        # 同步测试集
+        local_test_sets = LocalTestSet.where(local_challenge_id: local_challenge.id)
+        if local_test_sets.present?
+          local_test_sets.each do |local_test_set|
+            new_test_set = TestSet.new
+            new_test_set.attributes = local_test_set.attributes.dup.except("id","challenge_id")
+            new_test_set.challenge_id = new_challenge.id
+            new_test_set.save!
+          end
+        end
+
+        # 同步关卡标签
+        local_challenge_tags = LocalChallengeTag.where(local_challenge_id: local_challenge.id)
+        if local_challenge_tags.present?
+          local_challenge_tags.each do |local_challenge_tag|
+            ChallengeTag.create!(:challenge_id => new_challenge.id, :name => local_challenge_tag.try(:name))
+          end
+        end
+      end
+    end
+    shixun
+  end
+
   # 判断网站的入口，是课程 course 则跳过index去渲染 course 方法
   def entry_select
     # url = request.original_url.gsub('/','')
diff --git a/app/models/local_stage.rb b/app/models/local_stage.rb
new file mode 100644
index 00000000..7cdabca4
--- /dev/null
+++ b/app/models/local_stage.rb
@@ -0,0 +1,3 @@
+class LocalStage < ActiveRecord::Base
+  # attr_accessible :description, :local_subject_id, :name, :position, :shixuns_count, :subject_id
+end
diff --git a/app/models/local_stage_shixun.rb b/app/models/local_stage_shixun.rb
new file mode 100644
index 00000000..c2408b63
--- /dev/null
+++ b/app/models/local_stage_shixun.rb
@@ -0,0 +1,3 @@
+class LocalStageShixun < ActiveRecord::Base
+  # attr_accessible :local_subject_id, :position, :shixun_id, :stage_id, :subject_id
+end
diff --git a/app/models/local_subject.rb b/app/models/local_subject.rb
new file mode 100644
index 00000000..83eb8522
--- /dev/null
+++ b/app/models/local_subject.rb
@@ -0,0 +1,3 @@
+class LocalSubject < ActiveRecord::Base
+  # attr_accessible :description, :introduction, :learning_notes, :name, :shixuns_count, :stage_shixuns_count, :stages_count, :status
+end
diff --git a/app/models/shixun.rb b/app/models/shixun.rb
index 35193f2d..cef56af3 100644
--- a/app/models/shixun.rb
+++ b/app/models/shixun.rb
@@ -24,7 +24,7 @@
 # 116：challenge创建关卡的时候返回结果错误
 #
 class Shixun < ActiveRecord::Base
-  attr_accessible :description, :name, :changeset_num, :status, :user_id, :gpid, :language, :identifier, :authentication, :closer_id, :end_time, :publish_time,
+  attr_accessible :name, :changeset_num, :status, :user_id, :gpid, :language, :identifier, :authentication, :closer_id, :end_time, :publish_time,
                   :propaedeutics, :trainee, :major_id, :homepage_show, :webssh, :hidden, :fork_from, :can_copy, :modify_time, :reset_time, :git_url, :use_scope,
                   :vnc, :evaluate_script, :image_text, :exec_time, :test_set_permission, :hide_code, :excute_time, :forbid_copy
 
@@ -54,6 +54,8 @@ class Shixun < ActiveRecord::Base
   has_many :shixun_tag_repertoires, :dependent => :destroy
   has_many :shixun_service_configs, :dependent => :destroy
 
+  has_one :shixun_info, dependent: :destroy
+
   scope :visible, lambda{where(status: [2,3])}
   scope :min, lambda { select([:id, :name, :gpid, :modify_time, :reset_time, :language, :status, :identifier,
                                :test_set_permission, :hide_code, :forbid_copy, :hidden, :webssh, :user_id, :code_hidden,
@@ -66,6 +68,14 @@ class Shixun < ActiveRecord::Base
   #scope :visible, -> { where(status: -1) }
   after_create :send_tiding
 
+  def description
+    shixun_info.try(:description)
+  end
+
+  def evaluate_script
+    shixun_info.try(:evaluate_script)
+  end
+
   def should_compile?
     self.mirror_repositories.published_main_mirror.first.try(:should_compile)
   end
diff --git a/app/models/shixun_info.rb b/app/models/shixun_info.rb
new file mode 100644
index 00000000..45079557
--- /dev/null
+++ b/app/models/shixun_info.rb
@@ -0,0 +1,3 @@
+class ShixunInfo < ActiveRecord::Base
+  belongs_to :shixun
+end
diff --git a/config/routes.rb b/config/routes.rb
index ad5a7bdc..ef6d561c 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -301,6 +301,8 @@ RedmineApp::Application.routes.draw do ## oauth相关
   get 'welcome/local_to_shixun' => 'welcome#local_to_shixun'
   get 'welcome/local_init' => 'welcome#local_init'
   get 'welcome/user_agents' => 'welcome#user_agents'
+  get 'welcome/subject_to_local' => 'welcome#subject_to_local'
+  get 'welcome/local_to_subject' => 'welcome#local_to_subject'
 
   # get 'competitions/home' => 'competitions#home'
   # get 'competitions/hn' => 'competitions#index'
diff --git a/db/migrate/20190924070347_create_local_subjects.rb b/db/migrate/20190924070347_create_local_subjects.rb
new file mode 100644
index 00000000..db8087d3
--- /dev/null
+++ b/db/migrate/20190924070347_create_local_subjects.rb
@@ -0,0 +1,17 @@
+class CreateLocalSubjects < ActiveRecord::Migration
+  def change
+    create_table :local_subjects do |t|
+      t.string :name
+      t.text :description
+      t.integer :status
+      t.text :learning_notes
+      t.string :introduction
+      t.integer :stages_count
+      t.integer :stage_shixuns_count
+      t.integer :shixuns_count
+      t.integer :subject_id
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20190924072232_create_local_stages.rb b/db/migrate/20190924072232_create_local_stages.rb
new file mode 100644
index 00000000..309a30e1
--- /dev/null
+++ b/db/migrate/20190924072232_create_local_stages.rb
@@ -0,0 +1,14 @@
+class CreateLocalStages < ActiveRecord::Migration
+  def change
+    create_table :local_stages do |t|
+      t.integer :subject_id
+      t.string :name
+      t.text :description
+      t.integer :position
+      t.integer :shixuns_count
+      t.integer :local_subject_id
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20190924072622_create_local_stage_shixuns.rb b/db/migrate/20190924072622_create_local_stage_shixuns.rb
new file mode 100644
index 00000000..93c1d5da
--- /dev/null
+++ b/db/migrate/20190924072622_create_local_stage_shixuns.rb
@@ -0,0 +1,15 @@
+class CreateLocalStageShixuns < ActiveRecord::Migration
+  def change
+    create_table :local_stage_shixuns do |t|
+      t.integer :subject_id
+      t.integer :local_subject_id
+      t.integer :stage_id
+      t.integer :local_stage_id
+      t.integer :shixun_id
+      t.integer :local_shixun_id
+      t.integer :position
+
+      t.timestamps
+    end
+  end
+end