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Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
2.5 KiB
61 lines
2.5 KiB
class CourseVideosController < ApplicationController
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before_action :require_login
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before_action :validate_params, except: [:watch_histories]
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before_action :find_course, only: [:create]
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before_action :find_video, only: [:update, :watch_histories]
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before_action :teacher_allowed, except: [:watch_histories]
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def create
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title = params[:name].strip
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link = params[:link].strip
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course_second_category_id = params[:category_id] || 0
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@course.course_videos.create!(title: title, link: link, is_link: 1, user_id: current_user.id, course_second_category_id: course_second_category_id)
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render_ok
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end
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def update
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title = params[:name].strip
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link = params[:link].strip
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@video.update!(title: title, link: link)
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render_ok
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end
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def watch_histories
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return normal_status(403, "你没有权限操作") if !current_user.teacher_of_course?(@course)
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course_video = CourseVideo.find(@video.id)
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@watch_course_videos = course_video.watch_course_videos.joins("
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JOIN watch_video_histories ON watch_video_histories.watch_course_video_id = watch_course_videos.id AND watch_video_histories.end_at IS NOT NULL
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JOIN course_members ON course_members.user_id = watch_course_videos.user_id AND course_members.course_id = #{@course.id} AND role = 4
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").group("watch_video_histories.watch_course_video_id").where("watch_course_videos.end_at IS NOT NULL").select("watch_course_videos.id")
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@count = @watch_course_videos.count.count
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if params[:group_id].present?
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@watch_course_videos = @watch_course_videos.where("course_members.course_group_id = ?", params[:group_id])
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end
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@watch_course_videos = @watch_course_videos.select("count(watch_course_videos.course_video_id) AS freq, watch_course_videos.id, watch_course_videos.user_id, watch_course_videos.start_at, watch_course_videos.end_at, watch_course_videos.is_finished, watch_course_videos.total_duration")
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if params[:order].present?
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key = params[:order].split("-")
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if ["freq", 'total_duration'].include?(key.first) && ["desc", "asc"].include?(key.last)
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@watch_course_videos = @watch_course_videos.order("#{key.first} #{key.last}")
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end
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end
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@watch_course_videos = paginate @watch_course_videos
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end
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private
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def validate_params
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tip_exception("视频名称不能为空") if params[:name].blank?
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tip_exception("链接地址不能为空") if params[:link].blank?
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end
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def find_video
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@video = CourseVideo.find params[:id]
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@course = @video.course
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end
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end |