北斗应用技术培训报名系统
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279
app/service/Exam.js
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279
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 fileName = "Exam";
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class ExamService extends Service {
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// 用户报名接口
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async application(uid, form) {
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const { ctx } = this;
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try {
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let where = { uid }
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const user = await ctx.model.Examinee.findOne({ where });
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if (!user) return false;
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where = { user_uid: uid, exam_uid: form.exam_uid }
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const application = await ctx.model.Application.findOne({ where });
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let result;
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if (!application) {
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result = await ctx.model.Application.create(form);
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return result ? true : false;
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} else {
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result = await ctx.model.Application.update(form, { where });
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return result[0] != 0;
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};
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} catch (error) {
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const blockName = fileName + "--" + "application";
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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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// 用户取消报名接口
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async cancelApplication(uid, exam_uid) {
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const { ctx } = this;
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try {
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const result = await ctx.model.Application.update({ status: 3, result: "用户已取消报名" }, { where: { user_uid: uid, exam_uid } });
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return result[0] != 0;
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} catch (error) {
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const blockName = fileName + "--" + "cancelApplication";
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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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// 用户查看所有考试接口
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async examList(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_end', 'exam_start', 'exam_end'],
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where = {}, order = [], dbOptions, joinSubstring = [],
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substring = ['uid', 'exam_name'], key = ['status'], between = ['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 (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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if (result.rows.length == 0) return false;
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const examUids = result.rows.map(exam => exam.dataValues.uid);
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const applicationStatus = await ctx.model.Application.findAll({ where: { user_uid: uid, exam_uid: { [Op.in]: examUids } } });
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const statusMap = new Map();
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applicationStatus.forEach(item => {
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statusMap.set(item.dataValues.exam_uid, item.dataValues.status);
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});
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result.rows.forEach(exam => {
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statusMap.get(exam.dataValues.uid) == undefined ?
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exam.dataValues.applicationStatus = 4 :
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exam.dataValues.applicationStatus = statusMap.get(exam.dataValues.uid);
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});
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let passExamArr = result.rows.map(exam => exam.dataValues.status == 0 ? exam.dataValues.uid : '').filter(item => item !== '')
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const applicationCheck = await ctx.model.Application.findAll({ attributes: ['exam_uid', 'status'], where: { user_uid: uid, exam_uid: passExamArr, status: { [Op.in]: [0, 1] } } });
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let applicationCheckSwitch = false;
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result.rows.forEach((item) => {
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item.dataValues.applicationCheck = 0;
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item.dataValues.applicationCheckSwitch = false;
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applicationCheck.forEach(element => {
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if (element.dataValues.exam_uid == item.dataValues.uid) {
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if (element.dataValues.status == 0 || element.dataValues.status == 1) {
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item.dataValues.applicationCheck = 1;
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applicationCheckSwitch = true;
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}
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}
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})
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});
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if (applicationCheckSwitch) {
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result.rows.forEach((items) => {
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items.dataValues.applicationCheckSwitch = true;
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});
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}
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return result;
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} catch (error) {
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const blockName = fileName + "--" + "examList";
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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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// 用户查看考试结果接口
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async gradesList(user_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 = ['exam_uid', 'status', 'grades', 'pass_type'],
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where = { user_uid }, order = [], dbOptions, joinSubstring = [],
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substring = ['exam_uid'], key = ['status', 'grades', 'pass_type'], between = [];
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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 (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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let examination = ['exam_name'],
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examinationWhere = {},
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examinationOrder = [],
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examinationJoinSubstring = [],
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examinationSubstring = ['exam_name'],
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examinationKey = [],
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examinationBetween = [];
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examination.forEach(item => {
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if (searchOptions[item]) {
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if (searchOptions[item] == '*空') {
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if (examinationJoinSubstring.includes(item)) {
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examinationWhere[item] = null;
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} else {
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examinationWhere[item] = [null, ''];
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}
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} else if (examinationSubstring.includes(item)) {
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examinationWhere[item] = { [Op.substring]: searchOptions[item] };
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} else if (examinationKey.includes(item)) {
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examinationWhere[item] = searchOptions[item];
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} else if (examinationBetween.includes(item)) {
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examinationWhere[item] = { [Op.between]: [searchOptions[item][0], searchOptions[item][1]] };
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}
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}
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if (sortOptions[item] == true) {
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examinationOrder.push([item, 'ASC']);
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} else if (sortOptions[item] == false) {
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examinationOrder.push([item, 'DESC']);
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}
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});
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let include = [
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{
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model: ctx.model.Examination,
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attributes: ['exam_name', 'status'],
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where: examinationWhere,
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order: examinationOrder
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}
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];
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ctx.model.Grades.belongsTo(ctx.model.Examination, { foreignKey: 'exam_uid', targetKey: 'uid' });
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dbOptions = { attributes, offset, limit, where, order, include };
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const result = await ctx.model.Grades.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 + "--" + "gradesList";
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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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// 用户查看报名历史接口
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async applicationList(user_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 = ['exam_uid', 'source', 'status', 'pay_status', 'result', 'created_at'],
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where = { user_uid }, order = [], dbOptions, joinSubstring = [],
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substring = ['exam_uid', 'source', 'result'], key = ['status', 'pay_status'], between = ['created_at', '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 (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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let examination = ['exam_name', 'application_end', 'exam_start', 'exam_end'],
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examinationWhere = {},
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examinationOrder = [],
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examinationJoinSubstring = [],
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examinationSubstring = ['exam_name'],
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examinationKey = [],
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examinationBetween = ['application_end', 'exam_start', 'exam_end'];
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examination.forEach(item => {
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if (searchOptions[item]) {
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if (searchOptions[item] == '*空') {
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if (examinationJoinSubstring.includes(item)) {
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examinationWhere[item] = null;
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} else {
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examinationWhere[item] = [null, ''];
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}
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} else if (examinationSubstring.includes(item)) {
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examinationWhere[item] = { [Op.substring]: searchOptions[item] };
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} else if (examinationKey.includes(item)) {
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examinationWhere[item] = searchOptions[item];
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} else if (examinationBetween.includes(item)) {
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examinationWhere[item] = { [Op.between]: [searchOptions[item][0], searchOptions[item][1]] };
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}
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}
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if (sortOptions[item] == true) {
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examinationOrder.push([item, 'ASC']);
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} else if (sortOptions[item] == false) {
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examinationOrder.push([item, 'DESC']);
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}
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});
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let include = [
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{
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model: ctx.model.Examination,
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attributes: ['exam_name', 'status', 'application_end', 'exam_start', 'exam_end'],
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where: examinationWhere,
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order: examinationOrder
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}
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];
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ctx.model.Application.belongsTo(ctx.model.Examination, { foreignKey: 'exam_uid', targetKey: 'uid' });
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dbOptions = { attributes, offset, limit, where, order, include };
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const result = await ctx.model.Application.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 + "--" + "applicationList";
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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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