@ -104,7 +104,7 @@ class CoursesController < ApplicationController
def course_videos
videos = @course.videos
if params[:category_id].present? && params[:category_id].to_i != 0
videos = videos.where(course_second_category_id: params[:category_id].to_i)
videos = videos.where(course_videos: {course_second_category_id: params[:category_id].to_i})
end
videos = custom_sort(videos, params[:sort_by], params[:sort_direction])