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educoder/app/helpers/export_helper.rb

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module ExportHelper
include ApplicationHelper
require "base64"
require 'zip'
# 附件导出最大值
MAX_DOWN_SIZE = 500 * 1024 * 1024
SAVE_FOLDER = "#{Rails.root}/files"
OUTPUT_FOLDER = "#{Rails.root}/files/archiveZip"
MAX_PATH = 50
# 作业导出为xlsxhomework_type 1普通作业 2编程作业弃用 3分组作业 4实训作业
def student_work_to_xlsx(works,homework)
@work_head_cells = []
@work_cells_column = []
course = homework.course
head_cells_format = %w(序号 登录名 真实姓名 邮箱 学号 分班 提交状态)
allow_late_boolean = homework.allow_late
if allow_late_boolean #允许迟交
allow_late_cell = ["迟交扣分"]
else
allow_late_cell = []
end
if homework.homework_type != "practice" #普通作业/分组作业
homework_type_name = homework.homework_type
if homework_type_name == "group" #分组作业
group_cells = ["关联项目"]
else
group_cells = []
end
normal_head_cells = %w(作品描述 教师评分 教辅评分)
anon_boolean = homework.anonymous_comment
if anon_boolean
head_cells_add = %w(匿名评分 缺评扣分 违规匿评申诉扣分)
else
head_cells_add = []
end
normal_head_b_cells = %w(最终成绩 提交时间 更新时间 评语)
@work_head_cells = (head_cells_format + group_cells + normal_head_cells + head_cells_add + allow_late_cell + normal_head_b_cells).reject(&:blank?)
works.includes(user: :user_extension, student_works_scores: :user).each_with_index do |w, index|
w_user = w.user
w_1 = (index + 1)
w_2 = w_user.login
w_3 = w_user.real_name
w_3_1 = w_user.mail
w_4 = w_user.student_id.present? ? w_user.student_id : "--"
course_name = course.students.find_by(user_id: w.user_id).try(:course_group_name)
w_5 = course_name.present? ? course_name : "--"
#0 未提交, 1 按时提交, 2 延迟提交
if w.work_status == 0
w_6 = "未提交"
elsif w.work_status == 1
w_6 = "按时提交"
elsif w.work_status == 2
w_6 = "延迟提交"
else
w_6 = "--"
end
if homework_type_name == "group"
project_name = w.project
if project_name.present?
w_7 = w.project.name
else
w_7 = "--"
end
else
w_7 = nil
end
w_8 = w.description.present? ? strip_html(w.description) : "--"
w_9 = w.teacher_score.nil? ? "未评分" : w.teacher_score.round(1)
w_10 = w.teaching_asistant_score.nil? ? "未评分" : w.teaching_asistant_score.round(1)
if anon_boolean
w_11 = w.student_score.nil? ? "未评分" : w.student_score.round(1)
w_12 = (homework.teacher_priority == 1 && !w.teacher_score.nil?) ? 0 : w.absence_penalty #缺评扣分
home_work_de = homework.homework_detail_manual
w_13 = home_work_de.present? ? home_work_de.appeal_penalty : "--" #违规匿评申诉扣分
else
w_11,w_12,w_13 = nil
end
if allow_late_boolean #允许迟交
w_14 = (homework.teacher_priority == 1 && !w.teacher_score.nil?) ? 0 : w.late_penalty #迟交扣分
else
w_14 = nil
end
w_15 = w.work_score.nil? ? "未评分" : w.work_score.round(1)
w_16 = w.commit_time ? format_time(w.commit_time) : "--"
w_17 = w.update_time ? format_time(w.update_time) : "--"
teacher_comments = w.student_works_scores
if teacher_comments.present?
w_18 = ""
teacher_comments.each do |t|
user_name = t.user&.real_name
user_time = format_time(t.updated_at)
user_score = t&.score
user_comment = t.comment.present? ? t.comment : "--"
comment_title = "教师:#{user_name}\n时间:#{user_time.to_s}\n分数:#{user_score.to_s}\n评语:#{user_comment}\n\n"
w_18 = w_18 + comment_title
end
else
w_18 = "--"
end
row_cells_column = [w_1,w_2,w_3,w_3_1,w_4,w_5,w_6,w_7,w_8,w_9,w_10,w_11,w_12,w_13,w_14,w_15,w_16,w_17,w_18]
row_cells_column = row_cells_column.reject(&:blank?)
@work_cells_column.push(row_cells_column)
end
else #实训题
shixun = homework.shixuns.first
shixun_head_cells = %w(完成情况 通关时间 总耗时 总评测次数 获得经验值 关卡得分)
eff_boolean = homework.work_efficiency
if eff_boolean
eff_score_cell = ["效率分"]
else
eff_score_cell = []
end
if allow_late_boolean #允许迟交
eff_score_cell.push("迟交扣分")
end
shixun_time_cells = %w(最终成绩 更新时间 提交耗时 评语)
@work_head_cells = (head_cells_format + shixun_head_cells + eff_score_cell + shixun_time_cells).reject(&:blank?)
works.includes(:student_works_scores, user: :user_extension, myshixun: :games).each_with_index do |w, index|
myshixun = w.try(:myshixun)
w_user = w.user
w_1 = (index + 1)
w_2 = w_user.login
w_3 = w_user.real_name
w_3_1 = w_user.mail
w_4 = w_user.student_id.present? ? w_user.student_id : "--"
course_name = course.students.find_by(user_id: w.user_id).try(:course_group_name)
w_5 = course_name.present? ? course_name : "--"
#0 未提交, 1 按时提交, 2 延迟提交
if w.work_status == 0
w_6 = "未提交"
elsif w.work_status == 1
w_6 = "按时提交"
elsif w.work_status == 2
w_6 = "延迟提交"
else
w_6 = "--"
end
w_7 = w.work_status == 0 ? '--' : myshixun.try(:passed_count).to_s+"/"+shixun.challenges_count.to_s
w_8 = myshixun ? myshixun.try(:passed_time) == "--" ? "--" : format_time(myshixun.try(:passed_time)) : "--" # 通关时间
w_9 = myshixun ? (myshixun.try(:passed_count) > 0 ? myshixun.total_spend_time : '--') : "--" #总耗时
w_10 = myshixun ? myshixun.output_times : 0 #评测次数
w_11 = myshixun ? myshixun.total_score : "--" #获得经验值
w_12 = w.final_score.present? ? w.final_score : 0
if eff_boolean
w_13 = w.eff_score
else
w_13 = nil
end
if allow_late_boolean #允许迟交
w_14 = w.late_penalty #迟交扣分
else
w_14 = nil
end
w_15 = w.work_score.nil? ? "--" : w.work_score.round(1)
w_16 = w.update_time ? format_time(w.update_time) : "--" "更新时间"
w_17 = w.cost_time
teacher_comments = w.student_works_scores
if teacher_comments.present?
w_18 = ""
teacher_comments.each do |t|
user_name = t.user&.real_name
user_time = format_time(t.updated_at)
user_score = t&.score
user_comment = t.comment.present? ? t.comment : "--"
comment_title = "教师:#{user_name}\n时间:#{user_time.to_s}\n分数:#{user_score.to_s}\n评语:#{user_comment}\n\n"
# ("教师:" + user_name + "\n" + "时间:" + user_time.to_s + "\n" + "分数:" + user_score.to_s + "分" + "\n" + "评语:" + user_comment + "\n\n")
w_18 = w_18 + comment_title
end
else
w_18 = "--"
end
row_cells_column = [w_1,w_2,w_3,w_3_1,w_4,w_5,w_6,w_7,w_8,w_9,w_10,w_11,w_12,w_13,w_14,w_15,w_16,w_17,w_18]
row_cells_column = row_cells_column.reject(&:blank?)
@work_cells_column.push(row_cells_column)
end
end
end
#毕设任务的导出
def graduation_work_to_xlsx(items,task,current_user)
head_cells_format = %w(序号 登录名 真实姓名 邮箱 学号 分班)
task_type_boolean = task.task_type == 2
if task_type_boolean #是否分组
head_cells_format = head_cells_format + ["分组"]
end
head_cells_format = head_cells_format + ["提交状态"]
task_project_boolean = task.base_on_project
if task_project_boolean #关联项目
head_cells_format = head_cells_format + ["关联项目"]
end
head_cells_format = head_cells_format + %w(作品描述 教师评分)
task_comment_boolean = task.cross_comment
if task_comment_boolean #是否交叉评阅
head_cells_format = head_cells_format + ["交叉评分"]
end
head_cells_format = head_cells_format + %w(迟交扣分 最终成绩 提交时间 更新时间)
@head_cells_column = head_cells_format
@task_cells_column = []
items.includes(user: :user_extension).each_with_index do |work,index|
w_1 = (index+1)
w_user = work.user
w_2 = w_user.login
w_3 = w_user.real_name
w_3_1 = w_user.mail
w_4 = w_user.student_id.present? ? w_user.student_id : "--"
w_5 = work.class_grouping_name
if task_type_boolean #是否分组
w_6 = work.grouping_name
else
w_6 = nil
end
w_status = work.work_status.to_i
if w_status == 0
w_7 = "未提交"
elsif w_status == 1
w_7 = "按时提交"
elsif w_status == 2
w_7 = "延时提交"
else
w_7 = "--"
end
if task_project_boolean #关联项目
w_project = project_info work, current_user, @user_course_identity #因为课堂引用了export_helper
w_8 = w_project[:name]
else
w_8 = nil
end
if work.description
w_9 = strip_html work.description
else
w_9 = "--"
end
w_10 = work.teacher_score.nil? ? "未评分" : work.teacher_score.round(1)
if task_comment_boolean #是否交叉评阅
w_11 = work.cross_score.nil? ? "未评分" : work.cross_score.round(1)
else
w_11 = nil
end
w_12 = work.late_penalty
w_13 = work.work_score.nil? ? "未评分" : work.work_score.round(1)
w_14 = work.commit_time.present? ? format_time(work.commit_time) : "--"
w_15 = work.update_time.present? ? format_time(work.update_time) : "--"
row_cells_column = [w_1,w_2,w_3,w_3_1,w_4,w_5,w_6,w_7,w_8,w_9,w_10,w_11,w_12,w_13,w_14,w_15]
row_cells_column = row_cells_column.reject(&:blank?)
@task_cells_column.push(row_cells_column)
end
end
#试卷的导出
def get_export_users(exercise,course,export_ex_users)
question_types = exercise.exercise_questions.pluck(:question_type).uniq
@table_columns = %w(序号 登录名 真实姓名 邮箱 学号 分班 提交状态)
@user_columns = []
ques_type_boolean = question_types.include?(4)
if ques_type_boolean #仅存在主观题或客观题的时候
@table_columns = @table_columns + %w(客观题成绩 主观题成绩 最终成绩 开始答题时间 提交时间)
else
@table_columns = @table_columns + %w(最终成绩 开始答题时间 提交时间)
end
export_ex_users.includes(user: :user_extension).each_with_index do |e_user,index|
user_info = e_user.user
member = course.students.find_by_user_id(e_user.user_id)
user_course = member.try(:course_group_name)
user_obj_score = e_user.objective_score < 0.0 ? 0.0 : e_user.objective_score.round(1).to_s
user_suj_score = e_user.subjective_score < 0.0 ? 0.0 : e_user.subjective_score.round(1).to_s
user_score = e_user.score.present? ? e_user.score.round(1).to_s : 0.0
if e_user.commit_status.present? && e_user.commit_status == 1
user_commit_stu = "按时提交"
else
user_commit_stu = "未提交"
end
user_start_time = e_user.start_at.present? ? e_user.start_at.strftime('%Y-%m-%d %H:%M') : "--"
user_end_time = e_user.end_at.present? ? e_user.end_at.strftime('%Y-%m-%d %H:%M') : "--"
user_student_id = user_info.student_id.present? ? user_info.student_id : "--"
user_option = [index+1,user_info.login,user_info.real_name, user_info.mail || '--',
user_student_id,user_course,user_commit_stu]
if ques_type_boolean
other_user_option = [user_obj_score,user_suj_score,user_score,user_start_time,user_end_time]
else
other_user_option = [user_score,user_start_time,user_end_time]
end
user_option = user_option + other_user_option
@user_columns.push(user_option)
end
end
#毕设选题的导出
def graduation_topic_to_xlsx(students,course)
@topic_head_cells = %w(序号 登录名 真实姓名 邮箱 学号 分班 课题名称 指导教师 教师职位 设计 论文 创作 生产/社会实际 结合科研 其它 真题 模拟题 纵向课题 横向课题 自选 新题 往届题,有新要求
往届题,无新要求 课题来源单位 调研或实习地点 确认结果)
@topic_body_cells = []
if students.count > 0
students.includes(user: :user_extension).each_with_index do |student, index|
user = student.user
student_topic = course.student_graduation_topics.user_topics_accept(user.id).first
if student_topic.present?
topic = student_topic.graduation_topic
else
student_topic = nil
topic = nil
end
w_1 = (index+1)
w_2 = user.login
w_3 = user.real_name
w_3_1 = user.mail
w_4 = user.student_id
w_5 = student.course_group_name
w_6 = topic.present? ? topic.name : "--"
w_7 = topic.present? ? topic.teacher.full_name : "--"
w_8 = topic.present? ? topic.teacher.identity : "--"
if topic.present?
w_9 = topic.topic_type == 1 ? "" : ""
w_10 = topic.topic_type == 2 ? "" : ""
w_11 = topic.topic_type == 3 ? "" : ""
w_12 = topic.topic_source == 1 ? "" : ""
w_13 = topic.topic_source == 2 ? "" : ""
w_14 = topic.topic_source == 3 ? "" : ""
w_15 = topic.topic_property_first == 1 ? "" : ""
w_16 = topic.topic_property_first == 2 ? "" : ""
w_17 = topic.topic_property_second == 1 ? "" : ""
w_18 = topic.topic_property_second == 2 ? "" : ""
w_19 = topic.topic_property_second == 3 ? "" : ""
w_20 = topic.topic_repeat == 1 ? "" : ""
w_21 = topic.topic_repeat == 2 ? "" : ""
w_22 = topic.topic_repeat == 3 ? "" : ""
w_23 = topic.source_unit
w_24 = "#{topic.province}#{topic.city}"
else
w_9,w_10,w_11,w_12,w_13,w_14,w_15,w_16,w_17,w_18,w_19,w_20,w_21,w_22,w_23,w_24 = "--"
end
if student_topic.present?
w_25 = student_topic.status == 0 ? "待确认" : "已同意"
else
w_25 = "--"
end
student_info_array = [w_1,w_2,w_3,w_3_1,w_4,w_5,w_6,w_7,w_8,w_9,w_10,w_11,w_12,w_13,w_14,w_15,w_16,w_17,w_18,w_19,w_20,w_21,w_22,w_23,w_24,w_25]
@topic_body_cells.push(student_info_array)
end
end
end
def encode64(str)
Base64.urlsafe_encode64(str)
end
def decode64(str)
Base64.urlsafe_decode64(str)
end
# 检测文件大小是否超过500m
def checkfileSize(works)
file_count = 0
file_size = 0
works.each do |work|
file_count += work.attachments.count
work.attachments.each do |attach|
file_size += attach.filesize
end
end
if file_size > MAX_DOWN_SIZE
status = -2
elsif file_count > 0
status = 0
else
status = -1
end
status
end
def zip_homework_common homework_common, student_works
bid_homework_path = []
digests = []
student_works.each do |work|
unless work.attachments.empty?
out_file = zip_student_work_by_user(work, homework_common)
bid_homework_path << out_file.file_path
digests << out_file.file_digest
end
end
out_file_name = "#{Time.now.to_i}_#{homework_common.name}.zip"
out_file_name.gsub!(" ", "-")
out_file_name.gsub!("/", "_")
out_file = find_or_pack(homework_common, homework_common.user_id, digests.sort){
zipping(out_file_name, bid_homework_path, OUTPUT_FOLDER)
}
[{files:[out_file.file_path], count: 1, index: 1,
real_file: out_file.file_path,
file: File.basename(out_file.file_path),
base64file: encode64(File.basename(out_file.file_path)),
size:(out_file.pack_size / 1024.0 / 1024.0).round(2)
}]
end
def zip_student_work_by_user(work, object)
homeworks_attach_path = []
not_exist_file = []
filename = []
# 需要将所有homework.attachments遍历加入zip
digests = []
work.attachments.each do |attach|
if File.exist?(attach.diskfile)
homeworks_attach_path << attach.diskfile
digests << attach.digest
filename << attach.filename
else
not_exist_file << attach.filename
digests << 'not_exist_file'
filename << attach.filename
end
end
#单个文件的话,不需要压缩,只改名
if homeworks_attach_path.size == 1
out_file = find_or_pack(object, work.user_id, digests.sort){
des_path = "#{OUTPUT_FOLDER}/#{make_zip_name(work, filename.first)}_#{File.basename(homeworks_attach_path.first)}"
FileUtils.cp homeworks_attach_path.first, des_path
des_path
}
else
out_file = find_or_pack(object, work.user_id, digests.sort){
zipping("#{make_zip_name(work)}.zip",
homeworks_attach_path, OUTPUT_FOLDER, true, not_exist_file)
}
end
out_file
end
def find_or_pack(homework, user_id, digests)
raise "please given a pack block" unless block_given?
out_file = ZipPack.packed?(homework, user_id, digests.sort)
unless out_file && out_file.file_valid?
file = yield
ZipPack.where(container_id: homework.id, container_type: homework.class.to_s, user_id: user_id).delete_all
out_file = ZipPack.create(container_id: homework.id,
container_type: homework.class.to_s,
user_id: user_id,
file_digest: Educoder::Utils.digest(file),
file_path: file,
pack_size: File.size(file),
file_digests: digests.join(',')
)
else
out_file.pack_times = out_file.pack_times + 1
out_file.save
end
out_file
end
def make_zip_name(work, file_name="")
Rails.logger.info("######################file_name: #{file_name}")
name = file_name === "" ? "" : (file_name[0, file_name.rindex('.')]+"_")
"#{name}#{work.user.real_name}_#{((work.user.student_id.nil?) ? "" : work.user.student_id)}"
end
def zipping(zip_name_refer, files_paths, output_path, is_attachment=false, not_exist_file=[])
rename_zipfile = zip_name_refer ||= "#{Time.now.to_i.to_s}.zip"
# 文件名过长
if rename_zipfile.size > MAX_PATH
rename_zipfile = rename_zipfile[0,rename_zipfile.size-4][0,MAX_PATH-4] + rename_zipfile[-4,4]
end
zipfile_name = "#{output_path}/#{rename_zipfile}"
# 同名文件重命名时用
index = 1
Dir.mkdir(File.dirname(zipfile_name)) unless File.exist?(File.dirname(zipfile_name))
Zip::File.open(zipfile_name, Zip::File::CREATE) do |zipfile|
files_paths.each do |filename|
rename_file = File.basename(filename)
rename_file = filename_to_real( File.basename(filename)) if is_attachment
begin
zipfile.add(rename_file, filename)
rescue Exception => e
rename_file = rename_same_file(rename_file, index)
index += 1
zipfile.add(rename_file, filename)
# zipfile.get_output_stream('FILE_NOTICE.txt'){|os| os.write "该作品中有重复命名文件,请通过文件名学号和姓名信息进入该作业详细界面手动下载"}
next
end
end
unless not_exist_file.empty?
zipfile.get_output_stream('FILE_LOST.txt'){|os| os.write "以下文件无法成功下载,请联系相关人员重新上传:" +
not_exist_file.join(',').to_s}
end
end
zipfile_name
end
def filename_to_real(name)
attach = Attachment.find_by_disk_filename(name)
attach.filename
end
def format_sheet_name name
name = name.gsub(":", "-")
end
def rename_same_file(name, index)
basename = File.basename(name, ".*")
new_basename = basename + "_" + index.to_s
extname = File.extname(name)
new_basename + extname
end
end