课程推荐中不显示私有课程

app/helpers/courses_helper.rb

@@ -25,7 +25,7 @@ module CoursesHelper
     # 获取tag匹配结果ID
     a_tags = []
     # kc = keywords.to_a
-    Course.visible.where("is_excellent =?", 1).each do |ec|
+    Course.visible.where("is_excellent =? and is_public =?", 1, 1).each do |ec|
       if ec.tags.any?{|value| current_course.name.include?(value.to_s)}
         a_tags << ec.id
       end
@@ -44,7 +44,7 @@ module CoursesHelper
     excellent_ids = a_courses.flatten.uniq.delete_if{|i| i == current_course.id}
     limit = 5 - excellent_ids.length.to_i
     sql = "SELECT distinct c.id FROM course_activities cs, courses c where cs.course_id = c.id
-         and c.is_excellent =1 and c.id != #{current_course.id} order by cs.updated_at desc;"
+         and c.is_excellent =1 and c.is_public = 1 and c.id != #{current_course.id} order by cs.updated_at desc;"
     default_ecourse_ids = Course.find_by_sql(sql).flatten
     # REDO:时间紧，待优化
     default_ids =[]