modify create ec year code

app/controllers/ec_years_controller.rb

@@ -17,18 +17,11 @@ class EcYearsController < ApplicationController
   # 添加年份
   def create
     @major_school = EcMajorSchool.find(params[:ec_major_school_id])
-    ec_years = @major_school.ec_years.pluck(:year)
+    if @major_school.ec_years.exists?(year: params[:year].to_i)
-    exist_year = ec_years.include?(params[:year].to_i)
-    if exist_year
       @status = -1
     else
-      prev_year = "#{params[:year].to_i - 1}"
+      service = CopyEcYearService.new(@major_school, params[:year].to_i)
-      prev_ec_year = @major_school.ec_years.where(:year => prev_year).first
+      service.call
-      if prev_ec_year.blank?
-        EcYear.create!(:year => params[:year], :ec_major_school_id => @major_school.id)
-      else
-        copy_year(prev_ec_year, params[:year])
-      end
       @status = 1
     end
     @major_manager = true
@@ -246,7 +239,7 @@ class EcYearsController < ApplicationController
     template_file = EcTemplate.find_by_name "课程列表导入模板"
     if template_file.present?
       file = template_file.attachments.first
-      @file_url = "/attachments/download/#{file.id}/#{file.filename}"
+      @file_url = '' #"/attachments/download/#{file.id}/#{file.filename}"
     else
       @file_url = "javascript:void(0);"
     end
@@ -357,236 +350,6 @@ class EcYearsController < ApplicationController
     @year = EcYear.find(params[:id])
   end
 
-  # 复制最新一届下的所有数据. previous_ec_year: 本专业最新一届, new_year: 新建的届别
-  def copy_year previous_ec_year, new_year
-    ActiveRecord::Base.transaction do
-      begin
-        # 如果是第一次创建届别，则直接创建
-        if previous_ec_year.blank?
-          raise("没有界别可以复制")
-        else
-          logger.info("############previous_ec_year: #{previous_ec_year.id}")
-          # 多个中间表需要替换的id
-          egs_record = [] # 记录ec_graduation_subitems的新旧值 例如: [[prev_egs, new_egs], [...]]
-          egr_record = [] # 记录ec_graduation_requirements的新旧值, 例如:  [[prev_egr, new_egr], [...]]
-          ec_record  = [] # 记录ec_courses
-          ece_record = [] # 记录ec_course_evaluations
-          eces_record= [] # 记录ec_course_evaluation_subitems
-          ect_record = [] # 记录ec_course_targets
-
-          # 复制 "届别"
-          ec_year = EcYear.create!(:year => new_year,
-                                   :ec_major_school_id => previous_ec_year.ec_major_school_id,
-                                   :calculation_value => previous_ec_year.calculation_value)
-
-          # 复制 "毕业要求"
-          previous_ec_year.ec_graduation_requirements.try(:each) do |pre_egr|
-            new_egr = EcGraduationRequirement.new
-            new_egr.attributes = pre_egr.attributes.dup.except("id", "ec_year_id")
-            new_egr.ec_year_id = ec_year.id
-            new_egr.save!
-            egr_record << [pre_egr.id, new_egr.id]
-            # 复制 "毕业要求子标点"
-            pre_egr.ec_graduation_subitems.try(:each) do |pre_egs|
-              new_egs = EcGraduationSubitem.new
-              new_egs.attributes = pre_egs.attributes.dup.except("id", "ec_graduation_requirement_id")
-              new_egs.ec_graduation_requirement_id = new_egr.id
-              new_egs.save!
-              # 记录新旧对应关系,为之后的中间表做记录
-              egs_record << [pre_egs.id, new_egs.id]
-              prev_ersvss = EcRequireSubVsStandard.where(:ec_graduation_subitem_id => pre_egs.id)
-              prev_ersvss.each do |prev_ersvs|
-                new_ersvss = EcRequireSubVsStandard.new
-                new_ersvss.attributes = prev_ersvs.attributes.dup.except("id", "ec_graduation_subitem_id")
-                new_ersvss.ec_graduation_subitem_id = new_egs.id
-                new_ersvss.save!
-              end
-
-            end
-          end
-
-          # 复制 "培养目标"
-          pre_eto = previous_ec_year.ec_training_objective
-          if pre_eto.present?
-            new_eto = EcTrainingObjective.new
-            new_eto.attributes = pre_eto.attributes.dup.except("id", "ec_year_id")
-            new_eto.ec_year_id = ec_year.id
-            new_eto.save!
-
-            # 复制 "培养目标分项"
-            pre_eto.ec_training_subitems.try(:each) do |pre_ets|
-              new_ets = EcTrainingSubitem.new
-              new_ets.attributes = pre_ets.attributes.dup.except("id", "ec_training_objective_id")
-              new_ets.ec_training_objective_id = new_eto.id
-              new_ets.save!
-
-              # 复制 "毕业要去 vs 培养目标"
-              pre_ervsos =  EcRequirementVsObjective.where(:ec_training_objective_id => pre_ets.id)
-              pre_ervsos.each do |ervso|
-                new_ervso = EcRequirementVsObjective.new
-                new_ervso.attributes = ervso.attributes.dup.except("id", "ec_training_objective_id", "ec_graduation_requirement_id")
-                new_ervso.ec_training_objective_id = new_ets.id
-                new_egr_id = -1
-                egr_record.each do |egr_id|
-                  if egr_id[0] == ervso.ec_graduation_requirement_id
-                    new_egr_id = egr_id[1]
-                  end
-                end
-                raise("找不对应的毕业要求") if new_egr_id == -1
-                new_ervso.ec_graduation_requirement_id = new_egr_id
-                new_ervso.save!
-              end
-            end
-          end
-
-          # 复制 "课程体系"
-          previous_ec_year.ec_courses.try(:each) do |pre_ec|
-            new_ec = EcCourse.create!(name: pre_ec.name, ec_year_id: ec_year.id)
-            ec_record << [pre_ec.id, new_ec.id]
-            # 复制 "课程考核标准"
-            pre_ec.ec_course_evaluations.try(:each) do |pre_ece|
-              new_ece = EcCourseEvaluation.create!(name: pre_ece.name,
-                                                   evluation_count: pre_ece.evluation_count,
-                                                   ec_course_id: new_ec.id,
-                                                   is_course_type: pre_ece.is_course_type)
-              ece_record << [pre_ece.id, new_ece.id]
-              # 复制 "考核分项"
-              pre_ece.ec_course_evaluation_subitems.try(:each) do |pre_eces|
-                new_eces =  EcCourseEvaluationSubitem.create!(name: pre_eces.name, ec_course_evaluation_id: new_ece.id)
-                # 记录新旧对应关系,为之后的中间表做记录
-                eces_record << [pre_eces.id, new_eces.id]
-              end
-            end
-
-            # 复制 "课程目标"
-            pre_ec.ec_course_targets.try(:each) do |pre_ect|
-              new_ect = EcCourseTarget.new
-              new_ect.attributes = pre_ect.attributes.dup.except("id", "ec_course_id")
-              new_ect.ec_course_id = new_ec.id
-              new_ect.save!
-              # 记录新旧对应关系,为之后的中间表做记录
-              ect_record << [pre_ect.id, new_ect.id]
-              # 复制 "课程目标和毕业要求指标点"
-              pre_ect.ec_graduation_subitem_course_targets.try(:each) do |pre_egsct|
-                new_egsct = EcGraduationSubitemCourseTarget.new
-                new_egsct.attributes = pre_egsct.attributes.dup.except("id", "ec_graduation_subitem_id", "ec_course_target_id")
-                # 寻找对应的new_egs_id
-                logger.info("############egs_record:#{egs_record}")
-                logger.info("############ec_graduation_subitem_id: #{pre_egsct.ec_graduation_subitem_id}")
-                new_egs_id = -1
-                egs_record.each do |id|
-                  if id[0] ==  pre_egsct.ec_graduation_subitem_id
-                    new_egs_id = id[1]
-                  end
-                end
-                raise("课程目标和毕业要求指标点找不到对应关系.") if new_egs_id == -1
-                new_egsct.ec_graduation_subitem_id = new_egs_id
-                new_egsct.ec_course_target_id = new_ect.id
-                new_egsct.save!
-              end
-
-              # 复制 "课程达成方法"
-              pre_ect.ec_course_achievement_methods.each do |pre_ecam|
-                # 寻找对应的 ec_course_id
-                new_ec_id = -1
-                new_ece_id = -1
-                new_eces_id = -1
-                ec_record.each do |ec_id|
-                  if ec_id[0] == pre_ecam.ec_course_id
-                    new_ec_id = ec_id[1]
-                  end
-                end
-                # 寻找对应的ec_course_evaluation_id
-                ece_record.each do |ece_id|
-                  if ece_id[0] ==  pre_ecam.ec_course_evaluation_id
-                    new_ece_id = ece_id[1]
-                  end
-                end
-                # 寻找对应的ec_course_evaluation_subitem_id
-                eces_record.each do |eces_id|
-                  if eces_id[0] == pre_ecam.ec_course_evaluation_subitem_id
-                    new_eces_id = eces_id[1]
-                  end
-                end
-
-                new_ecam = EcCourseAchievementMethod.new
-                new_ecam.attributes = pre_ecam.attributes.dup.except("id", "ec_course_id", "ec_course_evaluation_id",
-                                                                     "ec_course_evaluation_subitem_id", "ec_course_target_id")
-                new_ecam.ec_course_id                    = new_ec_id if new_ec_id != -1
-                new_ecam.ec_course_evaluation_id         = new_ece_id if new_ece_id != -1
-                new_ecam.ec_course_evaluation_subitem_id = new_eces_id if new_eces_id != -1
-                new_ecam.ec_course_target_id             = new_ect.id
-                new_ecam.save!
-
-                # 复制 "课程评价达成关系"
-                pre_ecam.ec_achievement_evaluation_relates.each do |pre_eaer|
-                  new_eaer = EcAchievementEvaluationRelate.new
-                  new_eaer.attributes = pre_eaer.attributes.dup.except("id", "ec_course_achievement_method_id",
-                                                                       "ec_course_evaluation_subitem_id", "ec_course_target_id")
-                  new_eaer.ec_course_achievement_method_id = new_ecam.id
-                  # 寻找对应的 ec_course_evaluation_subitem_id
-                  new_eces_id = -1
-                  eces_record.each do |eces_id|
-                    if eces_id[0] == pre_eaer.ec_course_evaluation_subitem_id
-                      new_eces_id = eces_id[1]
-                    end
-                  end
-                  new_eaer.ec_course_evaluation_subitem_id = new_eces_id if new_eces_id != -1
-                  # 寻找对应的 ec_course_target_id
-                  new_ect_id = -1
-                  ect_record.each do |ect_id|
-                    if ect_id[0] == pre_eaer.ec_course_target_id
-                      new_ect_id = ect_id[1]
-                    end
-                  end
-                  new_eaer.ec_course_target_id = new_ect_id if new_ect_id != -1
-                  new_eaer.save!
-                end
-              end
-            end
-
-            # 复制 "课程支撑"
-            pre_ec.ec_course_supports.try(:each) do |pre_ecs|
-              new_ecs = EcCourseSupport.new
-              new_ecs.attributes = pre_ecs.attributes.dup.except("id", "ec_course_id")
-              new_ecs.ec_course_id = new_ec.id
-              new_ecs.save!
-              # 复制 "课程vs毕业要求"
-              pre_ecs.ec_graduation_subitem_courses.try(:each) do |pre_egsc|
-                new_egs_id = -1
-                egs_record.each do |egs_id|
-                  if egs_id[0] == pre_egsc.ec_graduation_subitem_id
-                    new_egs_id = egs_id[1]
-                  end
-                end
-                new_egsc = EcGraduationSubitemCourse.new
-                new_egsc.attributes = pre_egsc.attributes.dup.except("id", "ec_graduation_subitem_id", "ec_course_support_id")
-                raise("找不到课程vs毕业要求的关联关系!") if new_egs_id == -1
-                new_egsc.ec_graduation_subitem_id = new_egs_id
-                new_egsc.ec_course_support_id = new_ecs.id
-                new_egsc.save!
-              end
-
-            end
-
-            # 复制 "成绩等级设置"
-            pre_ec.ec_score_levels.try(:each) do |pre_esl|
-              new_esl = EcScoreLevel.new
-              new_esl.attributes = pre_esl.attributes.dup.except("id", "ec_course_id")
-              new_esl.ec_course_id = new_ec.id
-              new_esl.save!
-            end
-
-          end
-        end
-      rescue Exception => e
-        logger.error("###########error_message: #{e.message}")
-        raise ActiveRecord::Rollback
-      end
-
-    end
-  end
-
   # 导出培养目标excel
   def export_training_objectives objects
     xls_report = StringIO.new

app/models/ec_graduation_subitem.rb

@@ -9,4 +9,7 @@ class EcGraduationSubitem < ActiveRecord::Base
   # 课程目标配置
   has_many :ec_course_targets, :through => :ec_graduation_subitem_course_targets
   has_many :ec_graduation_subitem_course_targets, :dependent => :destroy
+
+  has_many :ec_require_sub_vs_standards
+  has_many :ec_graduation_standards, through: :ec_require_sub_vs_standards
 end

app/models/ec_require_sub_vs_standard.rb

@@ -1,3 +1,6 @@
 class EcRequireSubVsStandard < ActiveRecord::Base
   attr_accessible :ec_graduation_standard_id, :ec_graduation_subitem_id, :status
+
+  belongs_to :ec_graduation_standard
+  belongs_to :ec_graduation_subitem
 end

app/models/ec_requirement_vs_objective.rb

@@ -1,3 +1,5 @@
 class EcRequirementVsObjective < ActiveRecord::Base
   attr_accessible :ec_graduation_requirement_id, :ec_training_objective_id, :status
+  belongs_to :ec_graduation_requirement
+  belongs_to :ec_training_subitem
 end

app/models/ec_training_subitem.rb

@@ -1,4 +1,5 @@
 class EcTrainingSubitem < ActiveRecord::Base
   belongs_to :ec_training_objective
 
+  has_many :ec_requirement_vs_objectives, foreign_key: :ec_training_objective_id
 end

app/models/ec_year.rb

@@ -16,4 +16,8 @@ class EcYear < ActiveRecord::Base
   # 课堂配置
   has_many :ec_courses, :dependent => :destroy
   acts_as_attachable
+
+  def prev_year
+    ec_major_school.ec_years.find_by_year(year - 1)
+  end
 end

app/models/school.rb

@@ -16,6 +16,7 @@ class School < ActiveRecord::Base
 
   has_many :ec_majors, :through => :ec_major_schools
   has_many :ec_major_schools, :dependent => :destroy
+  has_one :ec_template_major, conditions: 'template_major = 1', class_name: 'EcMajorSchool'
 
   has_many :partners, :dependent => :destroy
   has_many :customers, :dependent => :destroy

app/services/copy_ec_year_service.rb

@@ -0,0 +1,306 @@
+ class CopyEcYearService
+   attr_reader :major_school, :to_year
+
+   def initialize(major_school, year)
+     @major_school = major_school
+     @to_year      = major_school.ec_years.new(year: year)
+   end
+
+   def call
+    if from_year.blank?
+      to_year.save!
+      return to_year
+    end
+
+    # 专业第一次创建届别时，复制示例专业2017届
+    ActiveRecord::Base.transaction do
+      copy_ec_year!
+
+      copy_graduation_requirement!
+
+      copy_training_objective!
+
+      new_major_school? ? copy_template_ec_course! : copy_ec_courses!
+    end
+
+    to_year
+   end
+
+   private
+
+   def new_major_school?
+     @_new_major ||= major_school.ec_years.count.zero?
+   end
+
+   def from_year
+     @_from_year ||= new_major_school? ? template_major_year : to_year.prev_year
+   end
+
+   def template_major_year
+     EcYear.joins(:ec_major_school).where(ec_major_schools: { template_major: true }).find_by_year('2017')
+   end
+
+   def copy_ec_year!
+     to_year.calculation_value = from_year.calculation_value
+     to_year.save!
+   end
+
+   def copy_graduation_requirement!
+     requirements = from_year.ec_graduation_requirements.includes(ec_graduation_subitems: :ec_require_sub_vs_standards)
+
+     requirements.each do |requirement|
+       to_requirement = to_year.ec_graduation_requirements.new
+       to_requirement.attributes = requirement.attributes.except('id', 'ec_year_id', 'created_at', 'updated_at')
+       to_requirement.save!
+
+       # 记录对应关系，创建支撑时使用
+       graduation_requirement_map[requirement.id] = to_requirement.id
+
+       copy_graduation_subitems(requirement, to_requirement)
+     end
+   end
+
+   def copy_graduation_subitems(requirement, to_requirement)
+     requirement.ec_graduation_subitems.each do |item|
+       to_item = to_requirement.ec_graduation_subitems.new
+       to_item.attributes = item.attributes.except('id', 'ec_graduation_requirement_id', 'created_at', 'updated_at')
+       to_item.save!
+
+       # 记录对应关系，创建支撑时使用
+       graduation_subitem_map[item.id] = to_item.id
+
+       copy_requirement_standard_supports!(item, to_item)
+     end
+   end
+
+   def copy_requirement_standard_supports!(graduation_subitem, to_graduation_subitem)
+     graduation_subitem.ec_require_sub_vs_standards.each do |support|
+       to_support = to_graduation_subitem.ec_require_sub_vs_standards.new
+       to_support.attributes = support.attributes.except('id', 'ec_graduation_subitem_id', 'created_at', 'updated_at')
+       to_support.save!
+     end
+   end
+
+   def copy_training_objective!
+     training_objective = from_year.ec_training_objective
+     return if training_objective.blank?
+
+     attributes = training_objective.attributes.except('id', 'ec_year_id', 'created_at', 'updated_at')
+     to_training_objective = to_year.create_ec_training_objective!(attributes)
+
+     copy_training_subitems!(training_objective, to_training_objective)
+   end
+
+   def copy_training_subitems!(training_objective, to_training_objective)
+     training_subitems = training_objective.ec_training_subitems.includes(:ec_requirement_vs_objectives)
+
+     training_subitems.each do |item|
+       to_item = to_training_objective.ec_training_subitems.new
+       to_item.attributes = item.attributes.except('id', 'ec_training_objective_id', 'created_at', 'updated_at')
+       to_item.save!
+
+       copy_requirement_vs_objectives!(item, to_item)
+     end
+   end
+
+   def copy_requirement_vs_objectives!(training_item, to_training_item)
+     training_item.ec_requirement_vs_objectives.each do |support|
+       to_support = to_training_item.ec_requirement_vs_objectives.new(status: support.status)
+       to_support.ec_graduation_requirement_id = graduation_requirement_map[support.ec_graduation_requirement_id]
+       to_support.save!
+     end
+   end
+
+   def copy_template_ec_course!
+     course = from_year.ec_courses.includes(
+       :ec_score_levels,
+       ec_course_evaluations: :ec_course_evaluation_subitems,
+       ec_course_targets: :ec_graduation_subitem_course_targets,
+       ec_course_achievement_methods: :ec_achievement_evaluation_relates,
+       ec_course_supports: :ec_graduation_subitem_courses
+     ).find_by_name('数据库原理')
+
+     to_course = to_year.ec_courses.new
+     to_course.attributes = course.attributes.except('id', 'ec_year_id', 'created_at', 'updated_at')
+     to_course.save!
+
+     course_map[course.id] = to_course.id
+
+     copy_course_evaluations!(course, to_course)
+     copy_course_targets!(course, to_course)
+     copy_course_achievement_methods!(course, to_course)
+     copy_ec_course_supports!(course, to_course)
+     copy_score_levels!(course, to_course)
+
+     # 复制示例时需要复制学生和成绩数据
+     copy_year_students!
+   end
+
+   def copy_ec_courses!
+     courses = from_year.ec_courses.includes(
+       :ec_score_levels,
+       ec_course_evaluations: :ec_course_evaluation_subitems,
+       ec_course_targets: :ec_graduation_subitem_course_targets,
+       ec_course_achievement_methods: :ec_achievement_evaluation_relates,
+       ec_course_supports: :ec_graduation_subitem_courses
+     )
+
+     courses.each do |course|
+       to_course = to_year.ec_courses.new
+       to_course.attributes = course.attributes.except('id', 'ec_year_id', 'created_at', 'updated_at')
+       to_course.save!
+
+       course_map[course.id] = to_course.id
+
+       copy_course_evaluations!(course, to_course)
+       copy_course_targets!(course, to_course)
+       copy_course_achievement_methods!(course, to_course)
+       copy_ec_course_supports!(course, to_course)
+       copy_score_levels!(course, to_course)
+     end
+   end
+
+   def copy_course_evaluations!(course, to_course)
+     course.ec_course_evaluations.each do |evaluation|
+       to_evaluation = to_course.ec_course_evaluations.new
+       to_evaluation.attributes = evaluation.attributes.except('id', 'ec_course_id', 'created_at', 'updated_at')
+       to_evaluation.save!
+
+       course_evaluation_map[evaluation.id] = to_evaluation.id
+
+       copy_course_evaluation_subitems!(evaluation, to_evaluation)
+     end
+   end
+
+   def copy_course_evaluation_subitems!(evaluation, to_evaluation)
+     evaluation.ec_course_evaluation_subitems.each do |item|
+       to_item = to_evaluation.ec_course_evaluation_subitems.new
+       to_item.attributes = item.attributes.except('id', 'ec_course_evaluation_id', 'created_at', 'updated_at')
+       to_item.save!
+
+       course_evaluation_subitem_map[item.id] = to_item.id
+     end
+   end
+
+   def copy_course_targets!(course, to_course)
+     course.ec_course_targets.each do |target|
+       to_target = to_course.ec_course_targets.new
+       to_target.attributes = target.attributes.except('id', 'ec_course_id', 'created_at', 'updated_at')
+       to_target.save!
+
+       course_target_map[target.id] = to_target.id
+
+       copy_graduation_subitem_course_targets!(target, to_target)
+     end
+   end
+
+   def copy_graduation_subitem_course_targets!(target, to_target)
+     target.ec_graduation_subitem_course_targets.each do |support|
+       to_support = to_target.ec_graduation_subitem_course_targets.new
+       to_support.attributes = support.attributes.except('id', 'ec_graduation_subitem_id', 'created_at', 'updated_at')
+       to_support.ec_graduation_subitem_id = graduation_subitem_map[support.ec_graduation_subitem_id]
+       to_support.save!
+     end
+   end
+
+   def copy_course_achievement_methods!(course, to_course)
+     course.ec_course_achievement_methods.each do |from|
+       to            = to_course.ec_course_achievement_methods.new
+       to.attributes = from.attributes.except('id', 'ec_course_id', 'ec_course_target_id', 'ec_course_evaluation_id',
+                                              'ec_course_evaluation_subitem_id', 'created_at', 'updated_at')
+
+       to.ec_course_target_id             = course_target_map[from.ec_course_target_id]
+       to.ec_course_evaluation_id         = course_evaluation_map[from.ec_course_evaluation_id]
+       to.ec_course_evaluation_subitem_id = course_evaluation_subitem_map[from.ec_course_evaluation_subitem_id]
+       to.save!
+
+       copy_achievement_evaluation_relates!(from, to)
+     end
+   end
+
+   def copy_achievement_evaluation_relates!(method, to_method)
+     method.ec_achievement_evaluation_relates.each do |relate|
+       to_relate = to_method.ec_achievement_evaluation_relates.new
+       to_relate.attributes = relate.attributes.except('id', 'ec_course_achievement_method_id', 'ec_course_target_id',
+                                                       'ec_course_evaluation_subitem_id', 'created_at', 'updated_at')
+       to_relate.ec_course_target_id             = course_target_map[relate.ec_course_target_id]
+       to_relate.ec_course_evaluation_subitem_id = course_target_map[relate.ec_course_evaluation_subitem_id]
+       to_relate.save!
+     end
+   end
+
+   def copy_ec_course_supports!(course, to_course)
+     course.ec_course_supports.each do |support|
+       to_support = to_course.ec_course_supports.new
+       to_support.attributes = support.attributes.except('id', 'ec_course_id', 'created_at', 'updated_at')
+       to_support.save!
+
+       copy_graduation_subitem_courses!(support, to_support)
+     end
+   end
+
+   def copy_graduation_subitem_courses!(course_support, to_course_support)
+     course_support.ec_graduation_subitem_courses.each do |item|
+       to_item = to_course_support.ec_graduation_subitem_courses.new
+       to_item.attributes = item.attributes.except('id', 'ec_course_support_id', 'ec_graduation_subitem_id',
+                                                   'created_at', 'updated_at')
+       to_item.ec_graduation_subitem_id = graduation_subitem_map[item.ec_graduation_subitem_id]
+       to_item.save!
+     end
+   end
+
+   def copy_score_levels!(course, to_course)
+     course.ec_score_levels.each do |level|
+       to_level = to_course.ec_score_levels.new
+       to_level.attributes = level.attributes.except('id', 'ec_course_id', 'created_at', 'updated_at')
+       to_level.save!
+     end
+   end
+
+   def copy_year_students!
+     students = from_year.ec_year_students.includes(:ec_student_achievements)
+
+     students.each do |student|
+       to_student = to_year.ec_year_students.new
+       to_student.attributes = student.attributes.except('id', 'ec_year_id', 'created_at', 'updated')
+       to_student.save!
+
+       copy_student_achievements!(student, to_student)
+     end
+   end
+
+   def copy_student_achievements!(student, to_student)
+     student.ec_student_achievements.each do |achievement|
+       to_achievement = to_student.ec_student_achievements.new
+       to_achievement.attributes = achievement.attributes.except('id', 'ec_year_student_id', 'ec_course_evaluation_id',
+                                                                 'ec_course_evaluation_subitem_id', 'created_at', 'updated_at')
+       to_achievement.ec_course_evaluation_id = course_evaluation_map[achievement.ec_course_evaluation_id]
+       to_achievement.ec_course_evaluation_subitem_id = course_evaluation_subitem_map[achievement.ec_course_evaluation_subitem_id]
+       to_achievement.save!
+     end
+   end
+
+   def graduation_requirement_map
+     @_graduation_requirement_map ||= {}
+   end
+
+   def graduation_subitem_map
+     @_graduation_subitem_map ||= {}
+   end
+
+   def course_map
+     @_course_map ||= {}
+   end
+
+   def course_evaluation_map
+     @_course_evaluation_map ||= {}
+   end
+
+   def course_evaluation_subitem_map
+     @_course_evaluation_subitem_map ||= {}
+   end
+
+   def course_target_map
+     @_course_target_map ||= {}
+   end
+ end