实训作业的排序

app/controllers/courses_controller.rb

@@ -40,6 +40,8 @@ class CoursesController < ApplicationController
   before_action :validate_course_name, only: [:create, :update]
   before_action :find_board, only: :board_list
   before_action :validate_page_size, only: :mine
+  before_action :course_tasks, only: [:tasks_list, :update_task_position]
+  before_action :find_container, only: [:update_task_position]
 
   if RUBY_PLATFORM =~ /linux/
     require 'simple_xlsx_reader'
@@ -1118,11 +1120,41 @@ class CoursesController < ApplicationController
   end
 
   def tasks_list
-
+    case params[:container_type]
+    when 'shixun_homework'
+      @tasks = @course.practice_homeworks
+    when 'common_homework'
+      @tasks = @course.normal_homeworks
+    when 'group_homework'
+      @tasks = @course.group_homeworks
+    when 'exercise'
+      @tasks = @course.exercises
+    when 'poll'
+      @tasks = @course.polls
+    when 'graduation_topic'
+      @tasks = @course.graduation_topics
+    when 'graduation_task'
+      @tasks = @course.graduation_tasks
+    when 'attachment'
+      @tasks = @course.attachments
+    else
+      tip_exception("请指定任务类型")
+    end
   end
 
   def update_task_position
-
+    tip_exception("缺少position参数") if params[:position].blank?
+    unless params[:position].to_i == @task.position
+      if params[:position].to_i < @task.position
+        @tasks.where("position < #{@task.position} and position >= ?", params[:position]).update_all("position = position + 1")
+      else
+        @tasks.where("position > #{@task.position} and position <= ?", params[:position]).update_all("position = position - 1")
+      end
+      @task.update_attributes(position: params[:position])
+      normal_status(0, "移动成功")
+    else
+      normal_status(-1, "位置没有变化")
+    end
   end
 
   private
@@ -1185,6 +1217,48 @@ class CoursesController < ApplicationController
     end
   end
 
+  def course_tasks
+    case params[:container_type]
+    when 'shixun_homework'
+      @tasks = @course.practice_homeworks
+    when 'common_homework'
+      @tasks = @course.normal_homeworks
+    when 'group_homework'
+      @tasks = @course.group_homeworks
+    when 'exercise'
+      @tasks = @course.exercises
+    when 'poll'
+      @tasks = @course.polls
+    when 'graduation_topic'
+      @tasks = @course.graduation_topics
+    when 'graduation_task'
+      @tasks = @course.graduation_tasks
+    when 'attachment'
+      @tasks = @course.attachments
+    else
+      tip_exception("请指定任务类型")
+    end
+  end
+
+  def find_container
+    case params[:container_type]
+    when 'shixun_homework', 'common_homework', 'group_homework'
+      @task = HomeworkCommon.find_by(id: params[:container_id])
+    when 'exercise'
+      @task = Exercise.find_by(id: params[:container_id])
+    when 'poll'
+      @task = Poll.find_by(id: params[:container_id])
+    when 'graduation_topic'
+      @task = GraduationTopic.find_by(id: params[:container_id])
+    when 'graduation_task'
+      @task = GraduationTask.find_by(id: params[:container_id])
+    when 'attachment'
+      @task = Attachment.find_by(id: params[:container_id])
+    else
+      tip_exception("container_type参数有误")
+    end
+  end
+
   def student_act_score group_id, search
     sql_select = %Q{SELECT cm.*,(
           SELECT SUM(student_works.work_score)

app/models/homework_common.rb

@@ -12,6 +12,7 @@ class HomeworkCommon < ApplicationRecord
 
   belongs_to :course, counter_cache: true
   belongs_to :homework_bank, optional: true
+  belongs_to :user
   has_many :homework_challenge_settings, dependent: :destroy
 
   has_one :homework_commons_shixun, dependent: :destroy

app/views/courses/tasks_list.json.jbuilder

@@ -0,0 +1,7 @@
+json.tasks @tasks.each do |task|
+  json.user_name task.user.real_name
+  json.task_id task.id
+  json.task_name task.name
+  json.category task.course_second_category&.name
+  json.position task.position
+end