787 lines
36 KiB
Ruby
787 lines
36 KiB
Ruby
#coding=utf-8
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class CoursesService
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include ApplicationHelper
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include CoursesHelper
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include HomeworkAttachHelper
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include ApiHelper
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#参数school_id为0或不传时返回所有课程，否则返回对应学校的课程
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#参数per_page_count分页功能，每页显示的课程数
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#参数page分页功能，当前页码
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def course_list params,current_user
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@school_id = params[:school_id]
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per_page_option = params[:per_page_count] || 10
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page_no = params[:page] || 1
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if @school_id == "0" || @school_id.nil?
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@courses_all = Course.active.visible.
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joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id")
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else
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@courses_all = Course.active.visible.
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joins("LEFT JOIN #{CourseStatus.table_name} ON #{Course.table_name}.id = #{CourseStatus.table_name}.course_id").
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where("#{Course.table_name}.school_id = ?", @school_id)
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end
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@course_count = @courses_all.count
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@course_pages = Redmine::Pagination::Paginator.new @course_count, per_page_option,page_no
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@courses = @courses_all.order("created_at desc")
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@courses = @courses.offset(@course_pages.offset).limit(@course_pages.per_page)
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course_list = []
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@courses.each do |course|
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course_list << {:course => course,:img_url => url_to_avatar(course),:current_user_is_member => current_user.member_of_course?(course),:current_user_is_teacher => is_course_teacher(current_user,course)}
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end
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course_list
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end
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#搜索课程
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def search_course params,current_user
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courses_all = Course.all_course
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name = params[:name]
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if name.blank?
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raise 'sumbit empty'
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end
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@courses = courses_all.visible(current_user)
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if params[:name].present?
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@courses_all = @courses.like(params[:name]).order("created_at desc")
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else
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@courses_all = @courses.order("created_at desc");
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end
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@courses_all
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course_list = []
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@courses_all.each do |course|
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course_list << {:course => course,:img_url => url_to_avatar(course),:current_user_is_member => current_user.member_of_course?(course),:current_user_is_teacher => is_course_teacher(current_user,course)}
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end
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course_list
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end
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#获取头像
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def get_img obj
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url_to_avatar(obj)
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end
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#课程老师或课程学生列表
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def course_teacher_or_student_list params,course,current_user
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if course.is_a?(Course)
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c = course
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else
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c = Course.find(course)
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end
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if current_user.nil? || !(current_user.admin? || c.is_public == 1 || (c.is_public == 0 && current_user.member_of_course?(c)))
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raise '403'
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end
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@teachers= searchTeacherAndAssistant(c)
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#@canShowCode = isCourseTeacher(User.current.id,course) && params[:role] != '1'
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case params[:role]
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when '1'
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#@subPage_title = l :label_teacher_list
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@members = searchTeacherAndAssistant(c)
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when '2'
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#@subPage_title = l :label_student_list
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@members = searchStudent(c)
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else
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#@subPage_title = ''
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@members = c.member_principals.includes(:roles, :principal).all.sort
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end
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users = []
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@members.each do |m|
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img_url = url_to_avatar(m.user)
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gender = m.user.user_extensions.gender.nil? ? 0 : m.user.user_extensions.gender
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work_unit = get_user_work_unit m.user
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location = get_user_location m.user
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users << {:id => m.user.id, :img_url => img_url, :nickname => m.user.login, :gender => gender, :work_unit => work_unit, :mail => m.user.mail, :location => location, :brief_introduction => m.user.user_extensions.brief_introduction,:realname=>m.user.realname}
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end
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users
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end
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#获取用户的工作单位
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def get_user_work_unit user
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work_unit = ""
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if user.user_extensions.identity == 0 || user.user_extensions.identity == 1
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work_unit = user.user_extensions.school.name unless user.user_extensions.school.nil?
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elsif user.user_extensions.identity == 3
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work_unit = user.user_extensions.occupation
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elsif user.user_extensions.identity == 2
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work_unit = user.firstname
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end
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work_unit
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end
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#获取用户地区
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def get_user_location user
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location = ""
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location << (user.user_extensions.location || '')
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location << (user.user_extensions.location_city || '')
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location
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end
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#课程通知列表
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def course_news_list params,current_user
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if params[:course_id] && @course==nil
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@course = Course.find(params[:course_id])
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end
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if current_user.nil? || !(current_user.admin? || @course.is_public == 1 || (@course.is_public == 0 && current_user.member_of_course?(@course)))
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raise '403'
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end
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scope = @course ? @course.news.order("news.created_on desc").course_visible(current_user) : News.order("news.created_on desc").course_visible(current_user)
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news = []
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scope.each do |n|
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news << {:id => n.id,:title => n.title,:author_name => n.author.name,:author_id => n.author.id, :author=>n.author, :description => n.description,:created_on => format_time(n.created_on),:comments_count => n.comments_count}
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end
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news
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end
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#查看新闻权限验证
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def show_course_news_authorize(current_user)
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unless current_user.allowed_to?({:controller => 'news', :action => 'show'}, false)
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raise '403'
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end
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end
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#显示课程通知(包括评论) 需验证权限
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def show_course_news params,current_user
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@news = News.find(params[:id])
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@course = @news.course
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if @course
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if current_user.nil? || !(current_user.admin? || @course.is_public == 1 || (@course.is_public == 0 && current_user.member_of_course?(@course)))
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raise '403'
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end
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end
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@comments = @news.comments
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@comments.reverse! if current_user.wants_comments_in_reverse_order?
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{:news => @news,:comments => @comments}
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#comments = []
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#@comments.each do |comment|
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# comments << {:author_id => comment.author_id,:author_name => comment.author.name,:commont_content => comment.comments,:time => format_time(comment.created_on)}
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#end
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#{:title => @news.title,:author_name => @news.author.name,:author_id => @news.author.id, :description => @news.description,:created_on => format_time(@news.created_on),
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# :comments_count => @news.comments_count,:comments => comments}
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end
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#显示课程
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def show_course(params,current_user)
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course = Course.find(params[:id])
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if course.school
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work_unit = course.school.name
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else
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work_unit = get_user_work_unit course.teacher
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end
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unless (course.is_public == 1 || current_user.member_of_course?(course) || current_user.admin?)
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raise '403'
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end
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{:course => course,:work_unit => work_unit, :img_url => url_to_avatar(course),:current_user_is_member => current_user.member_of_course?(course),:current_user_is_teacher => is_course_teacher(current_user,course),:course_student_num => course ? course.student.count.to_s : 0}
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end
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#创建课程
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#current_user当前用户对象（不是id）
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# params[:course][:name]:课程名称
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#params[:course][:password]:密码
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#params[:course][:description]:描述
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#params[:course][:is_public]:是否公开1公开，0私有
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#params[:course][:open_student]:是否公开学生列表1公开，0不公开，不公开时非课程成员无法看到学生列表
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#params[:course][:course_type]:暂时默认给1值。
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#params[:term]：学期（秋季学期或春季学期）
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#params[:time]: 年份（例：2014）
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#params[:setup_time]：暂不传（貌似已经没用了）
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#params[:endup_time]: 暂不传（貌似已经没用了）
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#params[:class_period]:学时总数
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def create_course(params,current_user)
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if current_user.user_extensions.identity
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@course = Course.new
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@course.extra = 'course' + DateTime.parse(Time.now.to_s).strftime('%Y-%m-%d_%H-%M-%S').to_s
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@course.send(:safe_attributes=, params[:course], current_user)
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#@course.safe_attributes(current_user,params[:course])
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@course.tea_id = current_user.id
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@course.term = params[:term]
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@course.time = params[:time]
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#@course.school_id = params[:occupation]
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@course.school_id = current_user.user_extensions.school_id
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@course.setup_time = params[:setup_time]
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@course.endup_time = params[:endup_time]
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@course.class_period = params[:class_period].to_i
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params[:course][:is_public] ? @course.is_public = 1 : @course.is_public = 0
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params[:course][:open_student] ? @course.open_student = 1 : @course.open_student = 0
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else
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end
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@issue_custom_fields = IssueCustomField.sorted.all
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@trackers = Tracker.sorted.all
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if @course && @course.save
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#unless User.current.admin?
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r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
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m = Member.new(:user => current_user, :roles => [r])
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m.project_id = -1
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course = CourseInfos.new(:user_id => current_user.id, :course_id => @course.id)
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#user_grades = UserGrade.create(:user_id => User.current.id, :course_id => @course.id)
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if params[:course][:is_public] == '1'
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course_status = CourseStatus.create(:course_id => @course.id, :watchers_count => 0, :changesets_count => 0, :grade => 0, :course_type => @course_tag)
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end
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@course.members << m
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@course.course_infos << course
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end
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{:course => @course,:img_url => url_to_avatar(@course),:current_user_is_member => current_user.member_of_course?(@course),:current_user_is_teacher => is_course_teacher(current_user,@course)}
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end
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#验证编辑课程的权限
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#当前
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def edit_course_authorize(current_user,course)
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unless current_user.allowed_to?({:controller => 'courses', :action => 'update'}, course)
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raise '403'
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end
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end
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#编辑课程 需验证权限
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# params[:course][:name]:课程名称
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#params[:course][:password]:密码
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#params[:course][:description]:描述
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#params[:course][:is_public]:是否公开1公开，0私有
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#params[:course][:open_student]:是否公开学生列表1公开，0不公开，不公开时非课程成员无法看到学生列表
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#params[:course][:course_type]:暂时默认给1值。
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#params[:term]：学期（秋季学期或春季学期）
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#params[:time]: 年份（例：2014）
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#params[:class_period]:学时总数
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def edit_course(params,course,current_user)
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course.send(:safe_attributes=, params[:course], current_user)
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#course.safe_attributes = params[:course]
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course.time = params[:time]
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course.term = params[:term]
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course.class_period = params[:class_period].to_i
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params[:course][:is_public] ? course.is_public = 1 : course.is_public = 0
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params[:course][:open_student] ? course.open_student = 1 : course.open_student = 0
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if course.save
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if params[:course][:is_public] == '0'
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course_status = CourseStatus.find_by_course_id(course.id)
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course_status.destroy if course_status
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elsif params[:course][:is_public] == '1'
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course_status = CourseStatus.find_by_course_id(course.id)
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course_status.destroy if course_status
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course_status = CourseStatus.create(:course_id => course.id, :grade => 0)
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end
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end
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{:course => course,:img_url => url_to_avatar(course),:current_user_is_member => current_user.member_of_course?(course),:current_user_is_teacher => is_course_teacher(current_user,course)}
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end
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#退出课程
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#object_id: 课程id
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#user：当前用户
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#@state == 0 退出成功
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#@state == 1 不在课程中
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#@state == 2 您还未登录
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#@state 其他 未知错误，请稍后再试
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def exit_course params,user
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if user.nil?
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@state = 2
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return @state
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end
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@member = Member.where('course_id = ? and user_id = ?', params[:object_id], user.id)
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if @member.nil? || @member.count == 0
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@state = 1
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return @state
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end
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@member.first.destroy
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joined = StudentsForCourse.where('student_id = ? and course_id = ?', user.id, params[:object_id])
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joined.each do |join|
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join.delete
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@state = 0
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end
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@state
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end
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#加入课程
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#object_id：课程id
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#course_password ：加入课程的密码
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#@state == 0 加入成功
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#@state == 1 密码错误
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#@state == 2 课程已过期 请联系课程管理员重启课程。(在配置课程处)
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#@state == 3 您已经加入了课程
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#@state == 4 您加入的课程不存在
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#@state == 5 您还未登录
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#@state 其他 未知错误，请稍后再试
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def join_course params,current_user
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course = Course.find_by_id params[:object_id]
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@state = 10
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if course
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if course_endTime_timeout? course
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@state = 2
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else
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if current_user.member_of_course?(course)
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@state = 3
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else
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if params[:course_password] == course.password
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members = []
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members << Member.new(:role_ids => [10], :user_id => current_user.id)
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course.members << members
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StudentsForCourse.create(:student_id => current_user.id, :course_id => params[:object_id])
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@state = 0
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else
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@state = 1
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end
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end
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end
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else
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@state = 4
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end
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{:state => @state,:course => course}
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end
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#作业列表
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#已提交的作业数量获取 bid.homeworks.count
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#学生提问数量获取 bid.commit.nil? ? 0 : bid.commit
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def homework_list params,current_user
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course = Course.find(params[:id])
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if course.is_public != 0 || current_user.member_of_course?(course)
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bids = course.homework_commons.page(1).per(20).order('created_at DESC')
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bids = bids.like(params[:name]) if params[:name].present?
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homeworks = []
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bids.each do |bid|
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homeworks << show_homework_info(course,bid,current_user,is_course_teacher(current_user,course))
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end
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homeworks
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else
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raise '403'
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end
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end
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def course_dynamic(params,current_user)
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@user = User.find(params[:id])
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if current_user.nil? && !current_user.admin? && !@user.active?
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raise '404'
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return
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end
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if current_user == @user || current_user.admin?
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membership = @user.coursememberships.all
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else
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membership = @user.coursememberships.all(:conditions => Course.visible_condition(current_user))
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end
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if membership.nil? || membership.count == 0
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raise l(:label_no_courses,:locale => get_user_language(current_user))
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end
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membership.sort! {|older, newer| newer.created_on <=> older.created_on }
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result = []
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membership.each do |mp|
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course = mp.course
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latest_course_dynamics = []
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latest_news = course.news.order("created_on desc").first
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unless latest_news.nil?
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latest_course_dynamics << {:type => 1,:time => latest_news.created_on,
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:message =>latest_news.author.realname<< l(:label_recently_updated_notification,:locale => get_user_language(current_user))<<"："<< latest_news.title }
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end
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latest_message = course.journals_for_messages.order("created_on desc").first
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unless latest_message.nil?
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latest_course_dynamics << {:type => 2,:time => latest_message.created_on,:message =>latest_message.user.realname << l(:label_recently_updated_message,:locale => get_user_language(current_user))<<"："<<latest_message.notes}
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end
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latest_attachment = course.attachments.order("created_on desc").first
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unless latest_attachment.nil?
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latest_course_dynamics << {:type => 3,:time => latest_attachment.created_on,:message =>latest_attachment.author.realname<< l(:label_recently_updated_courseware,:locale => get_user_language(current_user))<<"："<<latest_attachment.filename}
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end
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latest_bid = course.homework_commons.order('updated_at DESC').first
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unless latest_bid.nil?
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latest_course_dynamics << {:type => 4,:time => latest_bid.updated_at,:message => latest_bid.user.realname<<l(:label_recently_updated_homework,:locale => get_user_language(current_user))<<"："<<latest_bid.name}
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end
|
||
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# Time 2015-04-07 14:58:30
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||
# Author lizanle
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||
# Description 添加课程创建动态
|
||
if(User.find_by_id(CourseInfos.find_by_course_id(course.id).try(:user_id)))
|
||
create_user_name = User.find_by_id(CourseInfos.find_by_course_id(course.id).user_id).realname
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latest_course_dynamics << {:type => 5,:time => course.created_at,:message =>l(:label_recently,:locale => get_user_language(current_user)) << create_user_name << l(:label_creat,:locale => get_user_language(current_user))}
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end
|
||
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||
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||
#每个作业中的最新留言
|
||
# messages = []
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||
# course.homework_commons.each do |hc|
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||
# jour = hc.journals_for_messages.order("created_on desc").first
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||
# unless jour.nil?
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# messages << jour
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# end
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# end
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||
# unless messages.count == 0
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||
# messages.sort!{|order,newer| newer.created_on <=> order.created_on}
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||
# end
|
||
# latest_bid_message = messages.first
|
||
# unless latest_bid_message.nil?
|
||
# latest_course_dynamics << {:type => 4,:time => latest_bid_message.created_on,:message => l(:label_recently_updated_message,:locale => get_user_language(current_user))}
|
||
# end
|
||
#每个作业中学生最后提交的作业
|
||
homeworks = []
|
||
course.homework_commons.each do |bid|
|
||
homework_attach = bid.student_works.order('updated_at DESC').first
|
||
unless homework_attach.nil?
|
||
homeworks << homework_attach
|
||
end
|
||
end
|
||
unless homeworks.count == 0
|
||
homeworks.sort!{|order,newer| newer.updated_at <=> order.updated_at}
|
||
end
|
||
latest_homework_attach = homeworks.first
|
||
unless latest_homework_attach.nil?
|
||
latest_course_dynamics << {:type => 4,:time => latest_homework_attach.updated_at,:message =>latest_homework_attach.user.realname<< l(:label_recently_updated_homework,:locale => get_user_language(current_user))<<"："<<(latest_homework_attach.name.nil? ? latest_homework_attach.description : latest_homework_attach.name)}
|
||
end
|
||
latest_course_dynamics.sort!{|order,newer| newer[:time] <=> order[:time]}
|
||
latest_course_dynamic = latest_course_dynamics.first
|
||
unless latest_course_dynamic.nil?
|
||
result << {:course_name => course.name,:course_id => course.id,:course_img_url => url_to_avatar(course),:course_time => course.time,:course_term => course.term,:type => latest_course_dynamic[:type],:update_time => latest_course_dynamic[:time],:message => latest_course_dynamic[:message],:count => nil}
|
||
end
|
||
end
|
||
result.sort!{|order,newer| newer[:update_time] <=> order[:update_time]}
|
||
result
|
||
end
|
||
|
||
# 课程课件
|
||
def course_attachments params
|
||
result = []
|
||
course = Course.find(params[:course_id])
|
||
attachments = course.attachments.order("created_on ")
|
||
if !params[:name].nil? && params[:name] != ""
|
||
attachments.each do |atta|
|
||
result << atta if atta.filename.include?(params[:name])
|
||
|
||
end
|
||
else
|
||
result = attachments
|
||
end
|
||
result
|
||
end
|
||
|
||
# 课程学生列表
|
||
def course_members params
|
||
@all_members = searchmember_by_name(student_homework_score(0,params[:course_id], 10,"desc"),params[:name])
|
||
end
|
||
|
||
def show_member_score params
|
||
@member_score = Member.find(params[:member_id]) if params[:member_id]
|
||
atta = @member_score.student_homework_score[0]
|
||
result = []
|
||
atta.each do |t|
|
||
if !params[:homeworkName].nil? && params[:homeworkName] != ""
|
||
result << {:name=>t[:name],:score=>t[:score]} if t[:name].include?(params[:homeworkName])
|
||
else
|
||
result << {:name=>t[:name],:score=>t[:score]}
|
||
end
|
||
|
||
end
|
||
result
|
||
end
|
||
|
||
# 设置人员为课程教辅
|
||
def set_as_assitant_teacher params
|
||
members = []
|
||
#找到课程
|
||
course = Course.find(params[:course_id])
|
||
#新建课程人员
|
||
|
||
member = Member.new(:role_ids =>[7], :user_id => params[:user_id],:course_id=>params[:course_id])
|
||
joined = StudentsForCourse.where('student_id = ? and course_id = ?', member.user_id,course.id)
|
||
joined.each do |join|
|
||
join.delete
|
||
end
|
||
member.course_group_id = 0
|
||
members << member
|
||
course.members << members
|
||
#将课程人员设置为教辅
|
||
end
|
||
|
||
def del_assitant_teacher params
|
||
member = Member.where("user_id = ? and course_id = ?",params[:user_id],params[:course_id])
|
||
member.each do |m|
|
||
m.destroy
|
||
end
|
||
user_admin = CourseInfos.where("user_id = ? and course_id = ?",params[:user_id], params[:course_id])
|
||
if user_admin.size > 0
|
||
user_admin.each do |user|
|
||
user.destroy
|
||
end
|
||
end
|
||
joined = StudentsForCourse.where('student_id = ? and course_id = ?', params[:user_id],params[:course_id])
|
||
joined.each do |join|
|
||
join.delete
|
||
end
|
||
end
|
||
|
||
def create_course_notice params ,current_user
|
||
n = News.new(:course_id =>params[:course_id], :author_id => current_user.id,:title =>params[:title],:description=> params[:desc])
|
||
n.save
|
||
{:id => n.id,:title => n.title,:author_name => n.author.name,:author_id => n.author.id, :description => n.description,:created_on => format_time(n.created_on),:comments_count => n.comments_count}
|
||
end
|
||
|
||
private
|
||
def searchmember_by_name members, name
|
||
#searchPeopleByRoles(project, StudentRoles)
|
||
mems = []
|
||
if name != ""
|
||
name = name.to_s.downcase
|
||
members.each do |m|
|
||
username = m.user[:lastname].to_s.downcase + m.user[:firstname].to_s.downcase
|
||
if(m.user[:login].to_s.downcase.include?(name) || m.user.user_extensions[:student_id].to_s.downcase.include?(name) || username.include?(name))
|
||
mems << m
|
||
end
|
||
end
|
||
else
|
||
mems = members
|
||
end
|
||
mems
|
||
end
|
||
def show_homework_info course,bid,current_user,is_course_teacher
|
||
author_real_name = bid.user.lastname + bid.user.firstname
|
||
many_times = course.homework_commons.index(bid) + 1
|
||
name = bid.name
|
||
homework_count = bid.student_works.count #已提交的作业数量
|
||
#student_questions_count = bid.journals_for_messages.where('m_parent_id IS NULL').count
|
||
description = bid.description
|
||
#if is_course_teacher(User.current, course) && @bid.open_anonymous_evaluation == 1 && @bid.homeworks.count >= 2
|
||
#state = bid.homework_detail_manual.comment_status
|
||
if !bid.nil?
|
||
if bid.homework_type == 1 && bid.homework_detail_manual
|
||
case bid.homework_detail_manual.comment_status
|
||
when 1
|
||
state = show_homework_deadline bid
|
||
when 2
|
||
state = "正在匿评中"
|
||
when 3
|
||
state = "匿评已结束"
|
||
end
|
||
elsif bid.homework_type == 0
|
||
state = "未启用匿评"
|
||
elsif bid.homework_type == 2
|
||
state = "编程作业"
|
||
else
|
||
end
|
||
end
|
||
studentlist = []
|
||
bid.student_works.order("created_at desc").page(1).per(6).each do |work|
|
||
studentlist << work.user
|
||
end
|
||
unless is_course_teacher
|
||
homework_for_anonymous_comments = get_student_batch_homework_list bid,current_user
|
||
end
|
||
#end
|
||
open_anonymous_evaluation = bid.homework_detail_manual.comment_status
|
||
{:course_name => course.name,:course_id => course.id,:id => bid.id, :author => bid.user,:author_real_name => author_real_name, :homework_times => many_times, :homework_name => name, :homework_count => homework_count,:student_questions_count => 0,
|
||
:description => description, :homework_state => state,:open_anonymous_evaluation => open_anonymous_evaluation,:homework_for_anonymous_comments => homework_for_anonymous_comments,:created_on => bid.created_at,:deadline => bid.end_time,:studentlist => studentlist}
|
||
|
||
end
|
||
|
||
#显示作业列表的同时显示分配给当前学生匿评的作业
|
||
def show_homework_info_with_batch course,bid
|
||
author = bid.author.lastname + bid.author.firstname
|
||
many_times = course.homeworks.index(bid) + 1
|
||
name = bid.name
|
||
homework_count = bid.homeworks.count #已提交的作业数量
|
||
student_questions_count = bid.journals_for_messages.where('m_parent_id IS NULL').count
|
||
description = bid.description
|
||
#if is_course_teacher(User.current, course) && @bid.open_anonymous_evaluation == 1 && @bid.homeworks.count >= 2
|
||
state = bid.comment_status
|
||
#end
|
||
open_anonymous_evaluation = bid.open_anonymous_evaluation
|
||
{:course_name => course.name,:id => bid.id, :course_teacher => author, :homework_times => many_times, :homework_name => name, :homework_count => homework_count,:student_questions_count => student_questions_count,
|
||
:description => description, :homework_state => state,:open_anonymous_evaluation => open_anonymous_evaluation}
|
||
end
|
||
|
||
|
||
def student_homework_score(groupid,course_id, nums, score_sort_by)
|
||
#teachers = find_course_teachers(@course)
|
||
#start_from = start_from * nums
|
||
sql_select = ""
|
||
if groupid == 0
|
||
if nums == 0
|
||
sql_select = "SELECT members.*, SUM(homework_attaches.score) as score FROM members, homework_attaches
|
||
WHERE members.course_id = #{course_id} AND members.user_id in (SELECT students_for_courses.student_id FROM students_for_courses WHERE course_id = #{course_id}) AND members.user_id = homework_attaches.user_id
|
||
AND homework_attaches.bid_id in (SELECT bid_id FROM homework_for_courses WHERE course_id = #{course_id}) GROUP BY members.user_id
|
||
UNION all
|
||
SELECT members.*, 0 as score FROM members,homework_attaches,students_for_courses WHERE members.course_id = #{course_id} AND
|
||
students_for_courses.course_id = #{course_id} and members.user_id = students_for_courses.student_id AND
|
||
members.user_id NOT IN (SELECT homework_attaches.user_id FROM homework_attaches WHERE homework_attaches.bid_id in (SELECT bid_id FROM homework_for_courses WHERE course_id = #{course_id} )
|
||
)
|
||
GROUP BY members.user_id ORDER BY score #{score_sort_by}"
|
||
else
|
||
sql_select = "SELECT members.*, SUM(homework_attaches.score) as score FROM members, homework_attaches
|
||
WHERE members.course_id = #{course_id} AND members.user_id in (SELECT students_for_courses.student_id FROM students_for_courses WHERE course_id = #{course_id}) AND members.user_id = homework_attaches.user_id
|
||
AND homework_attaches.bid_id in (SELECT bid_id FROM homework_for_courses WHERE course_id = #{course_id}) GROUP BY members.user_id
|
||
UNION all
|
||
SELECT members.*, 0 as score FROM members,homework_attaches,students_for_courses WHERE members.course_id = #{course_id} AND
|
||
students_for_courses.course_id = #{course_id} and members.user_id = students_for_courses.student_id AND
|
||
members.user_id NOT IN (SELECT homework_attaches.user_id FROM homework_attaches WHERE homework_attaches.bid_id in (SELECT bid_id FROM homework_for_courses WHERE course_id = #{course_id} )
|
||
)
|
||
GROUP BY members.user_id ORDER BY score #{score_sort_by} " #limit #{start_from}, #{nums}"
|
||
|
||
end
|
||
else
|
||
sql_select = "SELECT members.*, SUM(homework_attaches.score) as score FROM members, homework_attaches
|
||
WHERE members.course_id = #{course_id} AND members.user_id in (SELECT students_for_courses.student_id FROM students_for_courses WHERE course_id = #{course_id}) AND members.user_id = homework_attaches.user_id
|
||
and members.course_group_id = #{groupid} AND homework_attaches.bid_id in (SELECT bid_id FROM homework_for_courses WHERE course_id = #{course_id})
|
||
GROUP BY members.user_id
|
||
UNION all
|
||
SELECT members.*, 0 as score FROM members,homework_attaches,students_for_courses WHERE members.course_id = #{course_id}
|
||
and members.course_group_id = #{groupid} AND
|
||
students_for_courses.course_id = #{course_id} and members.user_id = students_for_courses.student_id AND
|
||
members.user_id NOT IN (SELECT homework_attaches.user_id FROM homework_attaches WHERE homework_attaches.bid_id in (SELECT bid_id FROM homework_for_courses WHERE course_id = #{course_id} )
|
||
)
|
||
GROUP BY members.user_id ORDER BY score #{score_sort_by}"
|
||
end
|
||
sql = ActiveRecord::Base.connection()
|
||
homework_scores = Member.find_by_sql(sql_select)
|
||
sql.close()
|
||
|
||
homework_scores
|
||
end
|
||
|
||
#app新版api
|
||
#
|
||
#
|
||
#课程动态
|
||
public
|
||
def all_course_dynamics params, current_user
|
||
#获取当前用户的所有课程
|
||
@user = User.find(params[:id])
|
||
if current_user.nil? && !current_user.admin? && !@user.active?
|
||
raise '404'
|
||
return
|
||
end
|
||
if current_user == @user || current_user.admin?
|
||
membership = @user.coursememberships.page(1).per(15)
|
||
else
|
||
membership = @user.coursememberships.page(1).per(15).all(:conditions => Course.visible_condition(current_user))
|
||
end
|
||
if membership.nil? || membership.count == 0
|
||
raise l(:label_no_courses, :locale => get_user_language(current_user))
|
||
end
|
||
membership.sort! { |older, newer| newer.created_on <=> older.created_on }
|
||
|
||
#定义一个数组集合，存放hash数组，该hash数组包括课程的信息，并包含课程的最新发布的资源，最新的讨论区留言，最新的作业，最新的通知
|
||
result = []
|
||
#对用户所有的课程进行循环，找到每个课程最新发布的资源，最新的讨论区留言，最新的作业，最新的通知，并存进数组
|
||
membership.each do |mp|
|
||
course = mp.course
|
||
latest_course_dynamics = []
|
||
dynamics_count = 0
|
||
# 课程学霸 学生总分数排名靠前的5个人
|
||
homework_count = course.homework_commons.count
|
||
sql = "select users.*,sum(IFNULL(0,student_works.final_score))/#{homework_count} score from student_works left outer join users on student_works.user_id = users.id" <<
|
||
" where homework_common_id in ( select id from homework_commons where homework_commons.course_id = #{course.id}) GROUP BY student_works.user_id ORDER BY score limit 0,6"
|
||
better_students = User.find_by_sql(sql)
|
||
if homework_count != 0 && !better_students.empty?
|
||
latest_course_dynamics <<{:type=> 6,:time=>Time.now.to_s,:count=> 6,:better_students=> better_students}
|
||
dynamics_count += 1
|
||
end
|
||
# 课程通知
|
||
latest_news = course.news.page(1).per(2).order("created_on desc")
|
||
unless latest_news.first.nil?
|
||
latest_course_dynamics << {:type => 1, :time => latest_news.first.created_on,:count=>course.news.count,
|
||
:news => latest_news.all}
|
||
dynamics_count += 1
|
||
end
|
||
|
||
# 课程讨论区
|
||
# latest_message = course.boards.first.topics.page(1).per(2)
|
||
# unless latest_message.first.nil?
|
||
# latest_course_dynamics << {:type => 2, :time => latest_message.first.created_on, :count =>course.boards.nil? ? 0 : course.boards.first.topics.count,
|
||
# :topics => latest_message.all}
|
||
# dynamics_count += 1
|
||
# end
|
||
|
||
# 课程资源
|
||
# latest_attachment = course.attachments.order("created_on desc").page(1).per(2)
|
||
# unless latest_attachment.first.nil?
|
||
# latest_course_dynamics << {:type => 3, :time => latest_attachment.first.created_on,:count =>course.attachments.count , :documents=>latest_attachment}
|
||
# dynamics_count += 1
|
||
# end
|
||
|
||
#课程作业 已经交的学生列表（暂定显示6人），未交的学生列表，作业的状态
|
||
homeworks = course.homework_commons.page(1).per(2).order('created_at desc')
|
||
unless homeworks.first.nil?
|
||
latest_course_dynamics << {:type => 4, :time => homeworks.first.updated_at, :count=>course.homework_commons.count , :homeworks => homeworks}
|
||
dynamics_count += 1
|
||
end
|
||
latest_course_dynamics.sort! { |order, newer| newer[:time] <=> order[:time] }
|
||
latest_course_dynamic = latest_course_dynamics.first
|
||
unless latest_course_dynamic.nil?
|
||
result << {:course_name => course.name, :course_id => course.id, :course_img_url => url_to_avatar(course), :course_time => course.time, :course_term => course.term,:message => dynamics_count, :dynamics => latest_course_dynamics, :count => dynamics_count}
|
||
end
|
||
end
|
||
#返回数组集合
|
||
result.sort! { |order, newer| newer[:update_time] <=> order[:update_time] }
|
||
result
|
||
end
|
||
|
||
# 获取课程历次作业的学生总成绩
|
||
def students_score_list params,current_user
|
||
homework_count = Course.find(params[:course_id]).homework_commons.count
|
||
page = (params[:page] || 1) - 1
|
||
sql = "select users.*,sum(IFNULL(0,student_works.final_score))/#{homework_count} score from student_works left outer join users on student_works.user_id = users.id" <<
|
||
" where homework_common_id in ( select id from homework_commons where homework_commons.course_id = #{params[:course_id]}) GROUP BY student_works.user_id ORDER BY score limit #{page*10},10"
|
||
User.find_by_sql(sql)
|
||
end
|
||
|
||
# 获取某次作业的所有作业列表
|
||
def student_work_list params,current_user
|
||
is_teacher = User.current.allowed_to?(:as_teacher,Course.find(params[:course_id]))
|
||
homework = HomeworkCommon.find(params[:homework_id])
|
||
student_works = []
|
||
#老师 || 非匿评作业 || 匿评结束 显示所有的作品
|
||
show_all = is_teacher || homework.homework_type != 1 || homework.homework_detail_manual.comment_status == 3
|
||
if show_all
|
||
if homework.homework_type == 1 || is_teacher || current_user.admin?
|
||
student_works = homework.student_works.page(params[:page] || 1).per(10).order("final_score desc ")
|
||
else
|
||
my_work = homework.student_works.where(:user_id => current_user.id)
|
||
if my_work.empty?
|
||
student_works = []
|
||
else
|
||
student_works = homework.student_works.page(params[:page] || 1).per(10).order("final_score desc")
|
||
end
|
||
end
|
||
else #学生
|
||
if homework.homework_detail_manual.comment_status == 1 #未开启匿评，只显示我的作品
|
||
student_works = homework.student_works.where(:user_id => current_user.id).page(params[:page] || 1).per(10)
|
||
elsif homework.homework_detail_manual.comment_status == 2 #匿评列表，显示匿评作品和我的作品
|
||
#is_evaluation = true
|
||
my_work = homework.student_works.where(:user_id => current_user.id).page(params[:page] || 1).per(10)
|
||
student_works = my_work + current_user.student_works_evaluation_distributions.map(&:student_work).select { |work| work.homework_common_id == homework.id}
|
||
end
|
||
end
|
||
student_works
|
||
end
|
||
|
||
# 开启匿评
|
||
#statue 1:启动成功，2：启动失败，作业总数大于等于2份时才能启动匿评，3:已开启匿评，请务重复开启,4:没有开启匿评的权限
|
||
def start_anonymous_comment params,current_user
|
||
homework = HomeworkCommon.find(params[:homework_id])
|
||
return {:status=>4} unless current_user.admin? || current_user.allowed_to?(:as_teacher,Course.find(params[:course_id]))
|
||
return {:status=>5} if Time.parse(homework.end_time.to_s).strftime("%Y-%m-%d") >= Time.now.strftime("%Y-%m-%d")
|
||
homework_detail_manual = homework.homework_detail_manual
|
||
if homework_detail_manual.comment_status == 1
|
||
student_works = homework.student_works
|
||
if student_works && student_works.size >=2
|
||
student_works.each_with_index do |work, index|
|
||
user = work.user
|
||
n = homework_detail_manual.evaluation_num
|
||
n = n < student_works.size ? n : student_works.size - 1
|
||
assigned_homeworks = get_assigned_homeworks(student_works, n, index)
|
||
assigned_homeworks.each do |h|
|
||
student_works_evaluation_distributions = StudentWorksEvaluationDistribution.new(user_id: user.id, student_work_id: h.id)
|
||
student_works_evaluation_distributions.save
|
||
end
|
||
end
|
||
homework_detail_manual.update_column('comment_status', 2)
|
||
statue = 1
|
||
else
|
||
statue = 2
|
||
end
|
||
else
|
||
statue = 3
|
||
end
|
||
{:status => statue}
|
||
end
|
||
|
||
def get_assigned_homeworks(student_works, n, index)
|
||
student_works += student_works
|
||
student_works[index + 1 .. index + n]
|
||
end
|
||
|
||
end
|
||
|