b1da021185
新增教师资料更新功能，包括个人信息修改和密码更新 添加操作日志记录系统，记录用户关键操作 实现系统设置模块，支持动态配置系统参数 重构数据库模型，新增教师表和系统设置表 优化成绩录入逻辑，支持平时分、期中和期末成绩计算 添加数据导出功能，支持学生、教师和成绩数据导出 完善管理员后台，增加统计图表和操作日志查看
33 lines
935 B
JavaScript
33 lines
935 B
JavaScript
const db = require('../config/database');
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class SystemSetting {
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static async get(key) {
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const rows = await db.query('SELECT value FROM system_settings WHERE key = ?', [key]);
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return rows.length > 0 ? rows[0].value : null;
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}
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static async getAll() {
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const rows = await db.query('SELECT key, value FROM system_settings');
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const settings = {};
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rows.forEach(row => {
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settings[row.key] = row.value;
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});
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return settings;
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}
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static async set(key, value) {
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return await db.query(
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'INSERT INTO system_settings (key, value) VALUES (?, ?) ON CONFLICT(key) DO UPDATE SET value = excluded.value',
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[key, value]
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);
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}
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static async setMany(settings) {
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for (const [key, value] of Object.entries(settings)) {
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await this.set(key, String(value));
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}
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}
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}
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module.exports = SystemSetting;
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