北斗应用技术培训考试管理系统
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247
app/service/Exam.js
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247
app/service/Exam.js
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'use strict';
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const Service = require('../core/base_service');
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const { Op } = require('sequelize');
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const moment = require('moment');
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const fileName = "Exam";
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class ExamService extends Service {
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// 管理系统新增考试信息
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async addExam(form) {
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const { ctx } = this;
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try {
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const result = await ctx.model.Examination.bulkCreate(form, { ignoreDuplicates: true });
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return result.length == 0 ? false : result;
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} catch (error) {
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const blockName = fileName + "--" + "addExam";
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ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
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return 'error';
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}
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}
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// 管理系统查看考试信息
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async showExam(uid, body) {
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const { ctx } = this;
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try {
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let { offset, limit, searchOptions, sortOptions } = body;
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offset = (offset - 1) * limit;
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let attributes = ['uid', 'exam_name', 'status', 'application_start', 'application_end', 'exam_start', 'exam_end'],
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where = {}, order = [], dbOptions,
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joinSubstring = [],
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substring = ['uid', 'exam_name'],
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key = ['status'],
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between = ['application_start', 'application_end', 'exam_start', 'exam_end'];
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attributes.forEach(element => {
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if (searchOptions[element]) {
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if (searchOptions[element] == '*空') {
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if (joinSubstring.includes(element)) {
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where[element] = null;
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} else {
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where[element] = [null, ''];
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}
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} else if (joinSubstring.includes(element)) {
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let targetKeyArr = [];
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where[element] = targetKeyArr.length > 0 ? targetKeyArr : 'null';
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} else if (substring.includes(element)) {
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where[element] = { [Op.substring]: searchOptions[element] };
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} else if (key.includes(element)) {
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where[element] = searchOptions[element];
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} else if (between.includes(element)) {
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where[element] = { [Op.between]: [searchOptions[element][0], searchOptions[element][1]] };
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}
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}
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if (sortOptions[element] == true) {
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order.push([element, 'ASC']);
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} else if (sortOptions[element] == false) {
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order.push([element, 'DESC']);
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}
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});
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dbOptions = { attributes, offset, limit, where, order };
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const result = await ctx.model.Examination.findAndCountAll(dbOptions);
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return result.rows.length == 0 ? false : result;
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} catch (error) {
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const blockName = fileName + "--" + "showExam";
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ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
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return 'error';
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}
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}
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// 管理系统编辑考试信息
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async editExam(uid, modelType, updateMsg, requestMsg) {
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const { ctx } = this;
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try {
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const result = await ctx.model.Manager.findOne({ where: { uid } });
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if (!result || result.dataValues.role < 1) return false;
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let where = {};
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if (modelType == "single") {
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const { exam_name, status, application_start, application_end, exam_start, exam_end } = requestMsg;
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where = { exam_name, status, application_start, application_end, exam_start, exam_end };
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} else if (modelType == "multiple") {
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let exam_name = [], status = [], application_start = [], application_end = [], exam_start = [], exam_end = [];
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for (const key in requestMsg) {
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requestMsg[key].forEach(element => {
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exam_name.push(element.exam_name);
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status.push(element.status);
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application_start.push(element.application_start);
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application_end.push(element.application_end);
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exam_start.push(element.exam_start);
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exam_end.push(element.exam_end);
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});
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}
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where = { exam_name, status, application_start, application_end, exam_start, exam_end };
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}
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const resultList = await ctx.model.Examination.update(updateMsg, { where });
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return resultList[0] == 0 ? false : resultList;
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} catch (error) {
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const blockName = fileName + "--" + "editExam";
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ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
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return 'error';
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}
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}
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// 管理系统删除考试信息
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async deleteExam(uid, modelType, password, requestMsg) {
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const { ctx } = this;
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const systemMonitoring = {
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operate: 2,
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operate_msg: '删除用户账号信息',
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type: 0,
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status: 0,
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affect_entries: 0,
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user: uid,
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created_at: new Date()
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};
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try {
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const result = await ctx.model.Manager.findOne({ where: { uid } });
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if (!result || result.dataValues.password !== this.shaForm(password, this.decryptRequest(result.dataValues.salt)) || result.dataValues.role < 2) {
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if (!result) systemMonitoring.status = 0;
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else if (result.dataValues.password !== this.shaForm(password, this.decryptRequest(result.dataValues.salt))) systemMonitoring.status = 1;
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else if (result.dataValues.role < 2) systemMonitoring.status = 2;
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await ctx.model.Monitoring.create(systemMonitoring);
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return false;
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};
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let where = {};
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if (modelType == "single") {
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const { exam_name, status, application_start, application_end, exam_start, exam_end } = requestMsg;
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where = { exam_name, status, application_start, application_end, exam_start, exam_end };
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} else if (modelType == "multiple") {
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let exam_name = [], status = [], application_start = [], application_end = [], exam_start = [], exam_end = [];
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for (const key in requestMsg) {
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requestMsg[key].forEach(element => {
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exam_name.push(element.exam_name);
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status.push(element.status);
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application_start.push(element.application_start);
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application_end.push(element.application_end);
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exam_start.push(element.exam_start);
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exam_end.push(element.exam_end);
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});
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}
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where = { exam_name, status, application_start, application_end, exam_start, exam_end };
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}
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const resultList = await ctx.model.Examination.destroy({ where });
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systemMonitoring.status = resultList == 0 ? 3 : 4;
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systemMonitoring.affect_entries = resultList;
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await ctx.model.Monitoring.create(systemMonitoring);
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return resultList == 0 ? false : true;
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} catch (error) {
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systemMonitoring.status = 5;
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await ctx.model.Monitoring.create(systemMonitoring);
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const blockName = fileName + "--" + "deleteExam";
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ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
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return 'error';
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}
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}
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// 管理系统导出考试信息数据
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async downloadExamData(uid, searchMsg) {
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const { ctx } = this;
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try {
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const user = await ctx.model.Manager.findOne({ where: { uid } });
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if (!user || user.dataValues.role < 1) return false;
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let { searchOptions, sortOptions } = searchMsg;
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let attributes = ['uid', 'exam_name', 'status', 'application_start', 'application_end', 'exam_start', 'exam_end'],
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where = {}, order = [], dbOptions,
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joinSubstring = [],
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substring = ['uid', 'exam_name'],
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key = ['status'],
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between = ['application_start', 'application_end', 'exam_start', 'exam_end'];
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attributes.forEach(element => {
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if (searchOptions[element]) {
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if (searchOptions[element] == '*空') {
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if (joinSubstring.includes(element)) {
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where[element] = null;
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} else {
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where[element] = [null, ''];
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}
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} else if (joinSubstring.includes(element)) {
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let targetKeyArr = [];
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where[element] = targetKeyArr.length > 0 ? targetKeyArr : 'null';
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} else if (substring.includes(element)) {
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where[element] = { [Op.substring]: searchOptions[element] };
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} else if (key.includes(element)) {
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where[element] = searchOptions[element];
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} else if (between.includes(element)) {
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where[element] = { [Op.between]: [searchOptions[element][0], searchOptions[element][1]] };
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}
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}
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if (sortOptions[element] == true) {
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order.push([element, 'ASC']);
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} else if (sortOptions[element] == false) {
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order.push([element, 'DESC']);
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}
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});
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dbOptions = { attributes, where, order };
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const result = await ctx.model.Examination.findAll(dbOptions);
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if (result.length == 0) return { code: false };
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let data = [];
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const statusOptions = [
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{
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value: "0",
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label: "即将进行"
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},
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{
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value: "1",
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label: "正在进行"
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},
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{
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value: "2",
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label: "已经结束"
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},
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];
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result.forEach(element => {
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statusOptions.forEach((item) => {
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if (item.value == element.dataValues["status"]) {
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element.dataValues["status"] = item.label;
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}
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});
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element.dataValues.application_start = moment
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.utc(element.dataValues.application_start)
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.add(8, "hours")
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.format("YYYY年MM月DD日HH时mm分ss秒");
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element.dataValues.application_end = moment
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.utc(element.dataValues.application_end)
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.add(8, "hours")
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.format("YYYY年MM月DD日HH时mm分ss秒");
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element.dataValues.exam_start = moment
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.utc(element.dataValues.exam_start)
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.add(8, "hours")
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.format("YYYY年MM月DD日HH时mm分ss秒");
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element.dataValues.exam_end = moment
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.utc(element.dataValues.exam_end)
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.add(8, "hours")
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.format("YYYY年MM月DD日HH时mm分ss秒");
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data.push(element.dataValues);
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});
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return { code: true, data };
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} catch (error) {
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const blockName = fileName + "--" + "downloadExamData";
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ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
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return 'error';
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}
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}
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}
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module.exports = ExamService;
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