256 lines
9.3 KiB
Go
256 lines
9.3 KiB
Go
// 顺运宝会话缓存、同步进度和货运单明细的读写。
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//
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// 改动前必读 admin/AGENTS.md:只有本文件(和 db.go)能写 SQL,
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// service/syb.go 和 handler/web/others.go 都不许拼 SQL。
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package repository
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import (
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"database/sql"
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"errors"
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"fmt"
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"cmautobuy/admin/model"
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)
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// ---------- 会话缓存 ----------
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// SaveSybSession 写入或更新顺运宝登录会话缓存(按用户名 upsert)。
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//
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// `[必须]` 缓存写失败不能让已经登录的顺运宝会话失效——调用方拿到错误后
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// 只应该记日志,不应该把内存里刚登录成功的会话也扔掉,
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// 见 docs/admin/08-顺运宝接口.md §8。这条约束在 service 层落实,
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// 这里只负责"写失败就如实返回错误"。
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func SaveSybSession(q Execer, username, cookiesJSON, expiresAt string) error {
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if username == "" {
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return fmt.Errorf("username 不能为空")
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}
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now := model.NowISO()
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_, err := q.Exec(`
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INSERT INTO syb_session (username, cookies, expires_at, updated_at)
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VALUES (?, ?, ?, ?)
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ON CONFLICT(username) DO UPDATE SET
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cookies = excluded.cookies,
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expires_at = excluded.expires_at,
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updated_at = excluded.updated_at`,
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username, cookiesJSON, expiresAt, now)
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if err != nil {
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return fmt.Errorf("保存顺运宝会话缓存失败: %w", err)
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}
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return nil
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}
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// SybSessionCache 是缓存里的一条顺运宝会话。
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type SybSessionCache struct {
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Username string
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Cookies string // JSON 数组,原样保留,交给 syb.Client 解析
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ExpiresAt string
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}
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// GetSybSession 按用户名查缓存的会话,查不到返回 (nil, nil)。
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//
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// `[必须]` 这里只负责取数据,**不判断是否过期**——过期时间的比较、
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// 是否需要重新登录,是 service 层的业务判断(要用到"现在几点"这个
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// 会变化的量,放这里测试起来还要控制时间,不如交给上层)。
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func GetSybSession(q Execer, username string) (*SybSessionCache, error) {
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var c SybSessionCache
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err := q.QueryRow(`
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SELECT username, cookies, expires_at FROM syb_session WHERE username = ?`, username,
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).Scan(&c.Username, &c.Cookies, &c.ExpiresAt)
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if errors.Is(err, sql.ErrNoRows) {
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return nil, nil
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}
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if err != nil {
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return nil, fmt.Errorf("查询顺运宝会话缓存失败: %w", err)
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}
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return &c, nil
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}
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// DeleteSybSession 清除某个用户名的会话缓存(会话确认失效后调用)。
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func DeleteSybSession(q Execer, username string) error {
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if _, err := q.Exec(`DELETE FROM syb_session WHERE username = ?`, username); err != nil {
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return fmt.Errorf("清除顺运宝会话缓存失败: %w", err)
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}
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return nil
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}
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// ---------- 同步进度 ----------
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// GetSybLastSyncedAt 查上次同步完成的时间(精确到秒的 ISO 字符串)。
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// 从没同步过时返回 ("", false, nil)。
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func GetSybLastSyncedAt(q Execer) (lastSyncedAt string, found bool, err error) {
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var s sql.NullString
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err = q.QueryRow(`SELECT last_synced_at FROM syb_sync_state WHERE id = 1`).Scan(&s)
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if errors.Is(err, sql.ErrNoRows) {
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return "", false, nil
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}
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if err != nil {
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return "", false, fmt.Errorf("查询顺运宝同步进度失败: %w", err)
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}
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if !s.Valid || s.String == "" {
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return "", false, nil
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}
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return s.String, true, nil
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}
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// SetSybLastSyncedAt 更新"上次同步到哪"。
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//
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// `[必须]` 只应该在一次同步**全部成功**之后调用——调用方(service 层)
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// 负责这个时机;这里只负责写,不判断"是否该写"。中途失败不调用这个函数,
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// 见工单 #46「中途失败不更新 last_synced_at」。
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func SetSybLastSyncedAt(q Execer, at string) error {
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now := model.NowISO()
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_, err := q.Exec(`
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INSERT INTO syb_sync_state (id, last_synced_at, updated_at)
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VALUES (1, ?, ?)
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ON CONFLICT(id) DO UPDATE SET
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last_synced_at = excluded.last_synced_at,
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updated_at = excluded.updated_at`,
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at, now)
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if err != nil {
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return fmt.Errorf("更新顺运宝同步进度失败: %w", err)
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}
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return nil
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}
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// ---------- 货运单明细 ----------
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// UpsertSybOrder 写入或更新一条顺运宝货运单明细行。
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//
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// `[必须]` DO UPDATE SET 里绝不允许出现 shopee_sku_id。它是规格匹配的
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// 结果(人工确认或自动匹配产生),顺运宝那边根本没有这个值——写进去
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// 就是写 NULL,把人工攒的匹配成果洗掉,而且不报错。这和 #38 里
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// pdd_goods_url 不能被 Excel 导入覆盖是同一类问题,见工单 #46、
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// docs/admin/08-顺运宝接口.md §6.2。
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//
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// `[必须]` shopee_goods_id **可以**被覆盖——它就是顺运宝
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// detail.productId,来自顺运宝,不是人工填的。
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//
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// 返回 created 表示这一行是不是本次新插入的(供上层统计"新增/更新")。
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func UpsertSybOrder(q Execer, o model.SybOrder) (created bool, err error) {
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if o.SybID == "" {
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return false, fmt.Errorf("syb_id 不能为空")
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}
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var exists int
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err = q.QueryRow(`SELECT 1 FROM syb_orders WHERE syb_id = ?`, o.SybID).Scan(&exists)
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switch {
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case errors.Is(err, sql.ErrNoRows):
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created = true
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case err != nil:
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return false, fmt.Errorf("查询顺运宝货运单明细 %s 失败: %w", o.SybID, err)
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}
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now := model.NowISO()
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_, err = q.Exec(`
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INSERT INTO syb_orders
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(syb_id, order_no, title, product_spec, shopee_goods_id, shopee_sku_id,
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quantity, price_twd_cent, image_url, syb_data, created_at, updated_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
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ON CONFLICT(syb_id) DO UPDATE SET
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order_no = excluded.order_no,
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title = excluded.title,
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product_spec = excluded.product_spec,
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shopee_goods_id = excluded.shopee_goods_id,
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quantity = excluded.quantity,
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price_twd_cent = excluded.price_twd_cent,
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image_url = excluded.image_url,
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syb_data = excluded.syb_data,
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updated_at = excluded.updated_at`,
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// 注意:shopee_sku_id 只出现在 INSERT 的列清单里(新建行时写 o.ShopeeSKUID,
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// 同步永远传空字符串),完全不出现在 DO UPDATE SET 里——已存在的行
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// 这一列不受本语句影响,见上面的函数注释。
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o.SybID, o.OrderNo, o.Title, nullableText(o.ProductSpec), nullableText(o.ShopeeGoodsID),
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nullableText(o.ShopeeSKUID), o.Quantity, o.PriceTwdCent, nullableText(o.ImageURL),
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o.SybData, now, now)
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if err != nil {
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return false, fmt.Errorf("写入顺运宝货运单明细 %s 失败: %w", o.SybID, err)
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}
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return created, nil
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}
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// nullableText 把空字符串转成 SQL NULL,非空字符串原样写入。
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// syb_orders 的这几列在建表语句里都允许 NULL,空字符串和 NULL
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// 在页面上显示效果一样,统一存 NULL 更符合"这个字段还没有值"的语义。
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func nullableText(s string) any {
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if s == "" {
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return nil
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}
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return s
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}
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// SybOrderFilter 是货运单列表页支持的筛选条件。
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type SybOrderFilter struct {
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Keyword string // 匹配订单号或商品标题
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}
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func sybOrderFilterClause(filter SybOrderFilter) (string, []any) {
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kw := filter.Keyword
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if kw == "" {
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return "", nil
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}
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like := "%" + escapeLike(kw) + "%"
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return ` WHERE (order_no LIKE ? ESCAPE '\' OR title LIKE ? ESCAPE '\')`, []any{like, like}
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}
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// ListSybOrders 按筛选条件分页查货运单明细列表,按更新时间倒序。
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func ListSybOrders(q Execer, filter SybOrderFilter, limit, offset int) ([]model.SybOrder, error) {
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where, args := sybOrderFilterClause(filter)
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sqlText := `
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SELECT syb_id, order_no, title, product_spec, shopee_goods_id, shopee_sku_id,
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quantity, price_twd_cent, image_url, syb_data, created_at, updated_at
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FROM syb_orders` + where + `
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ORDER BY updated_at DESC, syb_id DESC LIMIT ? OFFSET ?`
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args = append(args, limit, offset)
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rows, err := q.Query(sqlText, args...)
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if err != nil {
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return nil, fmt.Errorf("查询顺运宝货运单列表失败: %w", err)
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}
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defer rows.Close()
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var list []model.SybOrder
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for rows.Next() {
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var o model.SybOrder
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var title, productSpec, shopeeGoodsID, shopeeSKUID, imageURL sql.NullString
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var priceCent sql.NullInt64
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if err := rows.Scan(
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&o.SybID, &o.OrderNo, &title, &productSpec, &shopeeGoodsID, &shopeeSKUID,
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&o.Quantity, &priceCent, &imageURL, &o.SybData, &o.CreatedAt, &o.UpdatedAt,
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); err != nil {
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return nil, fmt.Errorf("读取顺运宝货运单列表失败: %w", err)
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}
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o.Title = title.String
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o.ProductSpec = productSpec.String
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o.ShopeeGoodsID = shopeeGoodsID.String
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o.ShopeeSKUID = shopeeSKUID.String
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o.PriceTwdCent = priceCent.Int64
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o.ImageURL = imageURL.String
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list = append(list, o)
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}
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return list, rows.Err()
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}
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// CountSybOrders 统计当前筛选条件下的货运单明细总数。
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//
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// `[必须]` 用和 ListSybOrders **完全相同**的筛选条件——分页和底部统计
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// 靠它,写成两份筛选条件迟早有一天会不一致(工单 #43 的教训)。
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func CountSybOrders(q Execer, filter SybOrderFilter) (int, error) {
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where, args := sybOrderFilterClause(filter)
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sqlText := `SELECT COUNT(*) FROM syb_orders` + where
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var n int
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if err := q.QueryRow(sqlText, args...).Scan(&n); err != nil {
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return 0, fmt.Errorf("统计顺运宝货运单数量失败: %w", err)
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}
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return n, nil
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}
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// CountSybOrdersTotal 统计全部货运单明细数量(不带筛选),
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// 供列表页判断"是否已经同步过任何数据"。
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func CountSybOrdersTotal(q Execer) (int, error) {
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var n int
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if err := q.QueryRow(`SELECT COUNT(*) FROM syb_orders`).Scan(&n); err != nil {
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return 0, fmt.Errorf("统计顺运宝货运单数量失败: %w", err)
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}
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return n, nil
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}
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