socialforge/app/helpers/api_helper.rb

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# encoding: utf-8
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module ApiHelper
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ONE_MINUTE = 60 * 1000
ONE_HOUR = 60 * ONE_MINUTE
ONE_DAY = 24 * ONE_HOUR
ONE_MONTH = 30 * ONE_DAY
ONE_YEAR = 12 * ONE_MONTH
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#获取用户的工作单位
def get_user_work_unit user
work_unit = ""
if user.user_extensions.identity == 0 || user.user_extensions.identity == 1
work_unit = user.user_extensions.school.name unless user.user_extensions.school.nil?
elsif user.user_extensions.identity == 3
work_unit = user.user_extensions.occupation
elsif user.user_extensions.identity == 2
work_unit = user.firstname
end
work_unit
end
#获取用户地区
def get_user_location user
location = ""
location << (user.user_extensions.location || '')
location << (user.user_extensions.location_city || '')
location
end
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def get_assigned_homeworks(homeworks, n, index)
homeworks += homeworks
homeworks[index + 1 .. index + n]
end
def stars_to_json_like starts,show_jour,homework,show_name
result = []
starts.each do |s|
comment = get_homework_review homework,show_jour,s.rater
rater_name = show_name ? s.rater.login : l(:label_anonymous)
rater_id = show_name ? s.rater.id : ''
result << {:rater_id =>rater_id ,:rater_name => rater_name,:created_at => format_time(s.created_at),:stars => s.stars,:comment => comment}
end
result
end
#########################################################
#sw
#获取课程未匿评数量
#param: user => "用户", course_id => "查询的课程ID"
#return: 作业的数量
#########################################################
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def get_course_anonymous_evaluation user,course
count = 0
if course
is_teacher = is_course_teacher user,course
if is_teacher #如果是老师,显示学生提交的作业数
course.homeworks.each do |bid|
count += bid.homeworks.count
end
else #如果是学生,显示未匿评的数量
course.homeworks.each do |bid|
count += get_student_not_batch_homework_list bid,user
end
end
end
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[count,is_teacher]
end
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def get_user_language user
(user.language.nil? || user.language == "") ? 'zh':user.language
end
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# 学生获取课程作业的状态
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def get_homework_status homework
homework_status = ""
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if homework
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if homework.homework_type == 1 && homework.homework_detail_manual
case homework.homework_detail_manual.comment_status
when 1
homework_status = show_homework_deadline homework
when 2
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homework_status = "正在匿评"
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when 3
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homework_status = "匿评结束"
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end
elsif homework.homework_type == 0
homework_status = "未启用匿评"
elsif homework.homework_type == 2
homework_status = "编程作业"
else
end
end
homework_status
end
#获取作业的是否可以匿评的描述
def homework_status_desc homework
if homework.homework_type == 1 && homework.homework_detail_manual #匿评作业
if Time.parse(homework.end_time.to_s).strftime("%Y-%m-%d") >= Time.now.strftime("%Y-%m-%d")
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link = show_homework_deadline homework
elsif homework.student_works.count >= 2 #作业份数大于2
case homework.homework_detail_manual.comment_status
when 1
link = '启动匿评'
when 2
link = '关闭匿评'
when 3
link = " 匿评结束"
end
else
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link = "提交作业数过少"
end
else
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link = "未开启匿评作业"
end
link
end
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#获取
def get_submit_sutdent_list homework
studentlist = []
if homework.is_a?(Hash) && homework.key?(:studentlist)
studentlist = homework[:studentlist]
else
homework.student_works.order("created_at desc").page(1).per(6).each do |work|
studentlist << work.user
end
end
studentlist
end
#计算作业的截止日期,剩余日期
def show_homework_deadline homework
day = 0
if (day = (Date.parse(homework.end_time.to_s) - Date.parse(Time.now.to_s)).to_i) > 0
"距作业截止还有" << day.to_s << ""
else
"已截止,但可补交"
end
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end
#获取作业中学生的匿评比率
# 匿评比率 = 学生总共评价的作业的作业份数 / 作业份数 * 分配数 * 100%
# 教辅匿评比率 = 教辅已经评价的作业份数 / 总的作业份数 * 100%
def get_evaluation_part homework,role
homework_eva_completed_task_num = 0
homework_eva_task_num = 0
#匿评作业 # 且匿评状态不是还没有开启匿评
if homework.homework_type == 1 && homework.homework_detail_manual && homework.homework_detail_manual.comment_status != 1
# 总共需要评价的任务数
homework_eva_task_num = homework.homework_detail_manual.evaluation_num * homework.student_works.count
unless homework_eva_task_num == 0 #总任务数不为0 的情况下
#获取已经评价了多少的份作业 student_work_score里记录了评价情况每条记录有提交作业的id
#先求出提交作业的id集合
work_ids = "(" + homework.student_works.map(&:id).join(",") + ")"
#只要 student_work_score 中的 student_work_id在work_ids集合中那么久说明这个任务被完成了
sql = "select count(1) from student_works_scores where reviewer_role = #{role} and student_work_id in #{work_ids} "
homework_eva_completed_task_num = ActiveRecord::Base.connection().select_value(sql)
end
end
if homework_eva_task_num == 0
0
else
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( homework_eva_completed_task_num / homework_eva_task_num.to_f * 100 ) .round(1)
end
end
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# 获取当前时间
def time_from_now time
lastUpdateTime = time.to_i*1000
currentTime = Time.now.to_i*1000
timePassed = currentTime - lastUpdateTime;
timeIntoFormat = 0
updateAtValue = ""
if timePassed < 0
updateAtValue = "时间有问题"
elsif timePassed < ONE_MINUTE
updateAtValue = "一分钟前"
elsif timePassed < ONE_HOUR
timeIntoFormat = timePassed / ONE_MINUTE
updateAtValue = timeIntoFormat.to_s + "分钟前"
elsif (timePassed < ONE_DAY)
timeIntoFormat = timePassed / ONE_HOUR
updateAtValue = timeIntoFormat.to_s + "小时前"
elsif (timePassed < ONE_MONTH)
timeIntoFormat = timePassed / ONE_DAY
updateAtValue = timeIntoFormat.to_s + "天前"
elsif (timePassed < ONE_YEAR)
timeIntoFormat = timePassed / ONE_MONTH
updateAtValue = timeIntoFormat.to_s + "个月前"
else
timeIntoFormat = timePassed / ONE_YEAR
updateAtValue = timeIntoFormat.to_s + "年前"
end
updateAtValue
end
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end