增加获取用户在指定课程内作业数量的接口

app/helpers/api_helper.rb

@@ -37,4 +37,28 @@ module ApiHelper
     end
     result
   end
+
+  #########################################################
+  #sw
+  #获取课程未匿评数量
+  #param: user => "用户", course_id => "查询的课程ID"
+  #return: 作业的数量
+  #########################################################
+  def get_course_anonymous_evaluation user,course_id
+    course = Course.find course_id
+    count = 0
+    if course
+      is_teacher = is_course_teacher user,course
+      if is_teacher #如果是老师，显示学生提交的作业数
+        course.homeworks.each do |bid|
+          count += bid.homeworks.count
+        end
+      else #如果是学生，显示未匿评的数量
+        course.homeworks.each do |bid|
+          count += get_student_not_batch_homework_list bid,user
+        end
+      end
+    end
+    count
+  end
 end

app/helpers/homework_attach_helper.rb

@@ -130,4 +130,22 @@ module HomeworkAttachHelper
           WHERE homework_attaches.bid_id = #{bid.id} AND homework_evaluations.user_id = #{user.id} ORDER BY m_score DESC")
     student_batch_homework_list
   end
+
+  #########################################################
+  #sw
+  #获取学生未进行匿评的数量
+  #param: bid => 作业   user => 用户
+  #return 指定用户未进行匿评的作业的数量
+  #user必须是学生用户
+  #######################################################
+  def get_student_not_batch_homework_list bid,user
+    HomeworkAttach.find_by_sql("SELECT * FROM(SELECT homework_attaches.*,
+          (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND is_teacher_score = 1) AS t_score,
+          (SELECT AVG(stars) FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND is_teacher_score = 0) AS s_score,
+          (SELECT stars FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id = homework_attaches.id AND rater_id = #{user.id}  AND is_teacher_score = 0) AS m_score
+          FROM homework_attaches
+          INNER JOIN homework_evaluations ON homework_evaluations.homework_attach_id = homework_attaches.id
+          WHERE homework_attaches.bid_id = #{bid.id} AND homework_evaluations.user_id = #{user.id}) AS table1
+          WHERE table1.m_score IS NULL").count
+  end
 end