diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index c442e5a6c..5097536d5 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -994,6 +994,20 @@ class CoursesController < ApplicationController
     end
   end
 
+  def search_slim
+    courses = current_user.manage_courses.not_deleted.processing
+
+    keyword = params[:keyword].to_s.strip
+    if keyword.present?
+      courses = courses.where('name LIKE ?', "%#{keyword}%")
+    end
+
+    count = courses.count
+    courses = paginate(courses)
+
+    render_ok(count: count, courses: courses.select(:id, :name).as_json)
+  end
+
   private
 
   # Use callbacks to share common setup or constraints between actions.
diff --git a/app/controllers/poll_votes_controller.rb b/app/controllers/poll_votes_controller.rb
index 81126b044..a2f805a97 100644
--- a/app/controllers/poll_votes_controller.rb
+++ b/app/controllers/poll_votes_controller.rb
@@ -33,8 +33,7 @@ class PollVotesController < ApplicationController
             current_user_answer = user_votes.first
             if current_user_answer&.poll_answer_id != question_answer_id   #如果说更换了答案，则以前的答案删除，并新建记录
               current_user_answer.destroy
-              user_votes = PollVote.new(vote_answer_params)
-              user_votes.save!
+              PollVote.create(vote_answer_params)
             else
 
               if question_answer_text.present?
@@ -43,8 +42,7 @@ class PollVotesController < ApplicationController
               end
             end
           else
-            user_votes = PollVote.new(vote_answer_params)
-            user_votes.save!
+            PollVote.create(vote_answer_params)
           end
         elsif question_type == 2   #多选题的话，答案应该是1个以上
           question_answer_ids = params[:poll_answer_id] ? params[:poll_answer_id] : [] #该答案的id
@@ -102,10 +100,10 @@ class PollVotesController < ApplicationController
         @current_question_necessary = @poll_question.is_necessary
         #问答记录存在，且有值，才会有返回值。
         @current_question_status = 0
-
-        if user_votes.present?
-          vote_answer_id = user_votes.pluck(:poll_answer_id).reject(&:blank?).size
-          vote_text_count = user_votes.pluck(:vote_text).reject(&:blank?).size
+        new_user_votes = question_votes.where(user_id: current_user.id)
+        if new_user_votes.present?
+          vote_answer_id = new_user_votes.pluck(:poll_answer_id).reject(&:blank?).size
+          vote_text_count = new_user_votes.pluck(:vote_text).reject(&:blank?).size
           if vote_text_count > 0 || vote_answer_id > 0
             @current_question_status = 1
           end
diff --git a/app/models/course.rb b/app/models/course.rb
index c0c7f1f23..61e48d350 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -61,6 +61,8 @@ class Course < ApplicationRecord
 
   scope :hidden,      ->(is_hidden = true) { where(is_hidden: is_hidden) }
   scope :ended,       ->(is_end = true) { where(is_end: is_end) }
+  scope :processing,  -> { where(is_end: false) }
+  scope :not_deleted, -> { where(is_delete: false) }
   scope :deleted,     ->(is_delete = 1) { where(is_delete: is_delete) }
   scope :by_user,     ->(user) { joins(:course_members).where('course_members.user_id = ?', user.id).order(updated_at: :desc) }
   scope :by_keywords, lambda { |keywords|
diff --git a/config/routes.rb b/config/routes.rb
index e7fac7331..ecd54c8c0 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -303,6 +303,7 @@ Rails.application.routes.draw do
         post 'search_course_list'
         get 'board_list'
         get 'mine'
+        get 'search_slim'
       end
 
       resources :polls, only:[:index,:new,:create] do