chore: 后端首次基线提交
运行必须源码:app/(controller/model/service/middleware/lib/utils/validate/router)、config/、database/(migrations/seeders/sql)、启动脚本、app/public/templates 模板。 已忽略运行非必须:node_modules/、logs/、run/、app/public 运行时上传数据、.env*、构建/缓存产物。
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app/model/examSubmission.js
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110
app/model/examSubmission.js
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'use strict';
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/**
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* 答题记录模型 - ExamSubmission
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*
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* 存储选手的试卷答题记录,包括答题内容、提交时间和得分。
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* 每个选手在其组别的比赛中只允许提交一次。
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* 表名:exam_submissions
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*/
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module.exports = app => {
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const { STRING, INTEGER, DATE, TEXT, JSON: JSON_TYPE } = app.Sequelize;
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const ExamSubmission = app.model.define('exam_submission', {
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// 主键 ID,自增
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id: {
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type: INTEGER,
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primaryKey: true,
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autoIncrement: true,
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comment: '答题记录唯一标识',
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},
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// 选手 ID,外键关联 contestants 表
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contestant_id: {
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type: INTEGER,
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allowNull: false,
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comment: '选手 ID',
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references: {
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model: 'contestants',
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key: 'id',
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},
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},
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// 答题内容(JSON 格式存储,如 [{question_id: 1, answer: "..."}, ...])
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answers: {
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type: JSON_TYPE,
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allowNull: false,
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comment: '答题内容(JSON)',
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},
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// 该考生固化后的题目顺序(question_uid 数组 JSON 字符串):首次进入随机生成并持久化,
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// 之后重进复用,避免每次进入都 RAND() 重新打乱顺序(重进题目顺序变乱 Bug 修复)。
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question_order: {
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type: TEXT,
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allowNull: true,
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defaultValue: null,
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comment: '该考生固化题目顺序(question_uid JSON 数组),重进复用',
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},
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// Word 答案文件路径
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word_file_path: {
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type: STRING(500),
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allowNull: true,
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defaultValue: null,
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comment: 'Word答案文件路径',
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},
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// Word 答案文件名
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word_file_name: {
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type: STRING(255),
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allowNull: true,
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defaultValue: null,
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comment: 'Word答案文件名',
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},
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// 提交时间
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submit_time: {
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type: DATE,
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allowNull: true,
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comment: '提交时间(占位/未提交为 NULL,正式提交后为具体时间)',
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},
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// 得分(管理员评分后更新,NULL 表示尚未评分)
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score: {
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type: INTEGER,
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allowNull: true,
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defaultValue: null,
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comment: '试卷得分',
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},
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// 创建时间
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created_at: {
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type: DATE,
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allowNull: false,
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defaultValue: app.Sequelize.literal('CURRENT_TIMESTAMP'),
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comment: '创建时间',
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},
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// 更新时间
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updated_at: {
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type: DATE,
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allowNull: false,
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defaultValue: app.Sequelize.literal('CURRENT_TIMESTAMP'),
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comment: '更新时间',
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},
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}, {
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tableName: 'exam_submissions',
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timestamps: false,
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underscored: true,
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indexes: [
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{
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// 唯一约束:每选手仅一条答题提交记录,并发创建时折叠为一条(B12)。
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unique: true,
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name: 'uk_exam_submission_contestant',
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fields: ['contestant_id'],
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},
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],
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});
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// 关联关系:一条答题记录属于一名选手
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ExamSubmission.associate = () => {
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app.model.ExamSubmission.belongsTo(app.model.Contestant, {
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foreignKey: 'contestant_id',
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as: 'contestant',
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});
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};
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return ExamSubmission;
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};
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