75 lines
2.9 KiB
JavaScript
75 lines
2.9 KiB
JavaScript
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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 = "Contest";
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class ContestService extends Service {
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// 系统获取竞赛基本信息
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async contestMsg(uid) {
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const { ctx } = this;
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try {
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const user = await ctx.model4.Account.findOne({ attributes: ['contest_uid'], where: { uid } });
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if (!user) return false;
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const result = await ctx.model4.Contest.findOne({ where: { uid: user.dataValues.contest_uid }, order: [['created_at', 'DESC']] });
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console.log(result)
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return result || false;
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} catch (error) {
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const blockName = fileName + "--" + "contestMsg";
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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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// 系统获取排名信息
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async ranking(uid) {
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const { ctx } = this;
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try {
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// 按得分降序排序，得分相同时按创建时间降序排序
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let include = [
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{
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model: ctx.model4.Account,
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attributes: ['account_name'],
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}
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];
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ctx.model4.Examination.belongsTo(ctx.model4.Account, { foreignKey: 'user_uid', targetKey: 'uid' });
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const result = await ctx.model4.Examination.findAll({
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attributes: ['score', 'created_at', 'updated_at'],
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where: { updated_at: { [Op.ne]: null } },
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// 先按得分降序排序
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order: [['score', 'DESC'],],
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limit: 100,
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include,
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});
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if (result.length == 0) return false;
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// 使用 Set 获取不同得分值
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const uniqueScore = new Set(result.map(item => item.dataValues.score));
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// 将 Set 转换为数组
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const uniqueScoreArr = Array.from(uniqueScore);
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// 对数组进行降序排序
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uniqueScoreArr.sort((a, b) => b - a);
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let allScoreArr = [];
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uniqueScoreArr.forEach(score => {
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let sameScoreArr = [];
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result.forEach(item => {
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if (item.dataValues.score == score) {
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sameScoreArr.push(item);
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item.timeDifference = item.dataValues.updated_at - item.dataValues.created_at;
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}
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});
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// 按创建时间降序排序
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sameScoreArr.sort((a, b) => b.timeDifference - a.timeDifference);
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allScoreArr.push(...sameScoreArr);
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});
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return allScoreArr;
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} catch (error) {
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const blockName = fileName + "--" + "ranking";
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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 = ContestService;
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