koa3-demo/src/db/models/SiteConfigModel.js

import db from "../index.js"

class SiteConfigModel {
    // 获取指定key的配置
    static async get(key) {
        const row = await db("site_config").where({ key }).first()
        return row ? row.value : null
    }

    // 设置指定key的配置（有则更新，无则插入）
    static async set(key, value) {
        const exists = await db("site_config").where({ key }).first()
        if (exists) {
            await db("site_config").where({ key }).update({ value, updated_at: db.fn.now() })
        } else {
            await db("site_config").insert({ key, value })
        }
    }

    // 批量获取多个key的配置
    static async getMany(keys) {
        const rows = await db("site_config").whereIn("key", keys)
        const result = {}
        rows.forEach(row => {
            result[row.key] = row.value
        })
        return result
    }

    // 获取所有配置
    static async getAll() {
        const rows = await db("site_config").select("key", "value")
        const result = {}
        rows.forEach(row => {
            result[row.key] = row.value
        })
        return result
    }
}

export default SiteConfigModel
export { SiteConfigModel }