完成课程按tag搜索推荐

app/helpers/courses_helper.rb

@@ -25,9 +25,8 @@ module CoursesHelper
     # 获取tag匹配结果ID
     a_tags = []
     # kc = keywords.to_a
-    Course.visible.where("is_excellent =?", 2).each do |ec|
+    Course.visible.where("is_excellent =?", 1).each do |ec|
       if ec.tags.any?{|value| current_course.name.include?(value.to_s)}
-      #if ec.tags.find_all{|ect| kc.include? ect}.length != 0
         a_tags << ec.id
       end
     end
@@ -42,7 +41,7 @@ module CoursesHelper
     end
     a_courses << a_tags unless a_tags.length == 0
     # 过滤条件：精品课程、本身不在搜索范围
-    e_courses = Course.where("is_excellent =? and id in (?)",1,a_courses.uniq).where("id !=?",current_course.id)
+    e_courses = Course.where("is_excellent =? and id in (?)",1,a_courses.flatten.uniq).where("id !=?",current_course.id)
     e_courses
   end