474 lines
18 KiB
Go
474 lines
18 KiB
Go
package repository
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import (
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"database/sql"
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"fmt"
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"github.com/shopspring/decimal"
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"github.com/wmms/wmms/internal/model"
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"github.com/wmms/wmms/pkg/database"
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)
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// obsoleteMaterialFilterSQL 把已作废的物料挡在库存视图之外。作废要求现存量已经为 0，
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// 所以"不再补货"的物料是走作废退役，而不是永远挂在预警列表里。
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const obsoleteMaterialFilterSQL = ` AND m.status <> 'obsolete'`
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// stockedMaterialFilterSQL 在此基础上再挡掉从未入库过的物料。"是否存在
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// inventory_balances 行"正是"进过仓库"和"只存在于主数据"的分界线；被领用到 0 的行
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// 依然算数，所以已耗尽的物料仍然可见。
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const stockedMaterialFilterSQL = obsoleteMaterialFilterSQL +
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` AND EXISTS (SELECT 1 FROM inventory_balances ib2 WHERE ib2.material_id = m.id)`
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// stockWarningHavingSQL 必须与 service.ClassifyStock 保持一致：只有配置了启用状态且大于 0
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// 的预警阈值、并且现存量已经触达该阈值时才预警。enabled 的判断刻意放在 HAVING 而不是
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// join 条件里，否则被禁用的规则会塌缩成"没配过规则"，反过来又被当成启用。
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const stockWarningHavingSQL = `HAVING COALESCE(MAX(swr.enabled), TRUE) = TRUE
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AND COALESCE(MAX(swr.minimum_available), 0) > 0
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AND COALESCE(SUM(ib.on_hand), 0) <= COALESCE(MAX(swr.minimum_available), 0)`
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const upsertStockWarningRuleSQL = `INSERT INTO stock_warning_rules (organization_id, warehouse_id, material_id, minimum_available, enabled)
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SELECT o.id, w.id, ?, ?, ?
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FROM organizations o
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JOIN warehouses w ON w.organization_id = o.id AND w.code = 'DEFAULT'
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WHERE o.code = 'DEFAULT'
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ON DUPLICATE KEY UPDATE minimum_available = VALUES(minimum_available), enabled = VALUES(enabled)`
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type StockRepo struct{}
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func NewStockRepo() *StockRepo {
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return &StockRepo{}
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}
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func (r *StockRepo) GetAllStock(search string, limit, offset int) ([]model.Stock, int64, error) {
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countQuery := `SELECT COUNT(*) FROM materials m WHERE 1=1` + stockedMaterialFilterSQL
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var countArgs []interface{}
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if search != "" {
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countQuery += ` AND (m.material_code LIKE ? OR m.name LIKE ?)`
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searchPattern := "%" + search + "%"
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countArgs = append(countArgs, searchPattern, searchPattern)
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}
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var total int64
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err := database.DB.QueryRow(countQuery, countArgs...).Scan(&total)
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if err != nil {
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return nil, 0, err
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}
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query := `SELECT m.id, m.material_code, m.name, m.spec, m.unit,
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COALESCE(SUM(ib.on_hand), 0), COALESCE(MAX(swr.minimum_available), 0), COALESCE(MAX(swr.enabled), TRUE),
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IFNULL(pc.code, ''), IFNULL(c.code, '')
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FROM materials m
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LEFT JOIN inventory_balances ib ON ib.material_id = m.id
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LEFT JOIN stock_warning_rules swr ON swr.organization_id = ib.organization_id
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AND swr.warehouse_id = ib.warehouse_id AND swr.material_id = m.id
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LEFT JOIN material_categories c ON c.id = m.category_id
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LEFT JOIN material_categories pc ON pc.id = c.parent_id
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WHERE 1=1` + stockedMaterialFilterSQL
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var args []interface{}
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if search != "" {
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query += ` AND (m.material_code LIKE ? OR m.name LIKE ?)`
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searchPattern := "%" + search + "%"
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args = append(args, searchPattern, searchPattern)
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}
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query += ` GROUP BY m.id, m.material_code, m.name, m.spec, m.unit, pc.code, c.code ORDER BY m.id LIMIT ? OFFSET ?`
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args = append(args, limit, offset)
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rows, err := database.DB.Query(query, args...)
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if err != nil {
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return nil, 0, err
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}
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defer rows.Close()
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var stocks []model.Stock
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for rows.Next() {
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var s model.Stock
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err := rows.Scan(&s.MaterialID, &s.MaterialCode, &s.Name, &s.Spec, &s.Unit, &s.TotalOnHand, &s.WarningStock, &s.WarningEnabled, &s.MajorCategory, &s.MinorCategory)
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if err != nil {
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return nil, 0, err
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}
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stocks = append(stocks, s)
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}
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return stocks, total, nil
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}
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// GetByMaterialID 返回单个物料的库存。这里刻意不套 stockedMaterialFilterSQL：物料申请和
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// 出库表单是按物料逐个查询的，无论有没有入过库都必须给出答案。
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func (r *StockRepo) GetByMaterialID(materialID int64) (*model.Stock, error) {
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s := &model.Stock{}
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query := `SELECT m.id, m.material_code, m.name, m.spec, m.unit,
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COALESCE(SUM(ib.on_hand), 0), COALESCE(MAX(swr.minimum_available), 0), COALESCE(MAX(swr.enabled), TRUE),
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IFNULL(pc.code, ''), IFNULL(c.code, '')
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FROM materials m
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LEFT JOIN inventory_balances ib ON ib.material_id = m.id
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LEFT JOIN stock_warning_rules swr ON swr.organization_id = ib.organization_id
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AND swr.warehouse_id = ib.warehouse_id AND swr.material_id = m.id
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LEFT JOIN material_categories c ON c.id = m.category_id
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LEFT JOIN material_categories pc ON pc.id = c.parent_id
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WHERE m.id = ?
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GROUP BY m.id, m.material_code, m.name, m.spec, m.unit, pc.code, c.code`
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err := database.DB.QueryRow(query, materialID).Scan(&s.MaterialID, &s.MaterialCode, &s.Name, &s.Spec, &s.Unit, &s.TotalOnHand, &s.WarningStock, &s.WarningEnabled, &s.MajorCategory, &s.MinorCategory)
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if err != nil {
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return nil, err
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}
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return s, nil
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}
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func (r *StockRepo) GetWarningStock(limit, offset int) ([]model.Stock, int64, error) {
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countQuery := `SELECT COUNT(*) FROM (
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SELECT m.id
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FROM materials m
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LEFT JOIN inventory_balances ib ON ib.material_id = m.id
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LEFT JOIN stock_warning_rules swr ON swr.organization_id = ib.organization_id
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AND swr.warehouse_id = ib.warehouse_id AND swr.material_id = m.id
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WHERE 1=1` + stockedMaterialFilterSQL + `
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GROUP BY m.id
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` + stockWarningHavingSQL + `
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) warning_materials`
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var total int64
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err := database.DB.QueryRow(countQuery).Scan(&total)
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if err != nil {
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return nil, 0, err
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}
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query := `SELECT m.id, m.material_code, m.name, m.spec, m.unit,
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COALESCE(SUM(ib.on_hand), 0), COALESCE(MAX(swr.minimum_available), 0), COALESCE(MAX(swr.enabled), TRUE),
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IFNULL(pc.code, ''), IFNULL(c.code, '')
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FROM materials m
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LEFT JOIN inventory_balances ib ON ib.material_id = m.id
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LEFT JOIN stock_warning_rules swr ON swr.organization_id = ib.organization_id
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AND swr.warehouse_id = ib.warehouse_id AND swr.material_id = m.id
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LEFT JOIN material_categories c ON c.id = m.category_id
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LEFT JOIN material_categories pc ON pc.id = c.parent_id
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WHERE 1=1` + stockedMaterialFilterSQL + `
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GROUP BY m.id, m.material_code, m.name, m.spec, m.unit, pc.code, c.code
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` + stockWarningHavingSQL + `
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ORDER BY m.id LIMIT ? OFFSET ?`
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rows, err := database.DB.Query(query, limit, offset)
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if err != nil {
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return nil, 0, err
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}
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defer rows.Close()
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var stocks []model.Stock
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for rows.Next() {
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var s model.Stock
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err := rows.Scan(&s.MaterialID, &s.MaterialCode, &s.Name, &s.Spec, &s.Unit, &s.TotalOnHand, &s.WarningStock, &s.WarningEnabled, &s.MajorCategory, &s.MinorCategory)
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if err != nil {
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return nil, 0, err
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}
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stocks = append(stocks, s)
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}
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return stocks, total, nil
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}
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func (r *StockRepo) CreateLog(log *model.StockLog) error {
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query := `INSERT INTO stock_logs (material_id, type, quantity, related_order_type, related_order_id) VALUES (?, ?, ?, ?, ?)`
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result, err := database.DB.Exec(query, log.MaterialID, log.Type, log.Quantity, log.RelatedOrderType, log.RelatedOrderID)
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if err != nil {
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return err
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}
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id, err := result.LastInsertId()
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if err != nil {
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return err
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}
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log.ID = id
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return nil
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}
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func (r *StockRepo) GetLogsByMaterialID(materialID int64, limit, offset int) ([]model.StockLog, int64, error) {
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countQuery := `SELECT COUNT(*) FROM stock_logs WHERE material_id = ?`
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var total int64
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err := database.DB.QueryRow(countQuery, materialID).Scan(&total)
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if err != nil {
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return nil, 0, err
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}
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query := `SELECT id, material_id, type, quantity, related_order_type, related_order_id, created_at FROM stock_logs WHERE material_id = ? ORDER BY id LIMIT ? OFFSET ?`
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rows, err := database.DB.Query(query, materialID, limit, offset)
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if err != nil {
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return nil, 0, err
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}
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defer rows.Close()
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var logs []model.StockLog
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for rows.Next() {
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var log model.StockLog
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err := rows.Scan(&log.ID, &log.MaterialID, &log.Type, &log.Quantity, &log.RelatedOrderType, &log.RelatedOrderID, &log.CreatedAt)
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if err != nil {
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return nil, 0, err
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}
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logs = append(logs, log)
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}
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return logs, total, nil
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}
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func (r *StockRepo) GetAllLogs(limit, offset int) ([]model.StockLog, int64, error) {
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countQuery := `SELECT COUNT(*) FROM stock_logs`
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var total int64
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err := database.DB.QueryRow(countQuery).Scan(&total)
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if err != nil {
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return nil, 0, err
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}
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// Compute running_balance as cumulative sum of (in=+quantity, out=-quantity) ordered by id ASC,
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// then reverse to show newest first while preserving correct cumulative balance for each row
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query := `
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SELECT id, material_id, type, quantity, related_order_type, related_order_id, created_at
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FROM (
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SELECT *,
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(SELECT COALESCE(SUM(CASE WHEN type='in' THEN quantity ELSE -quantity END), 0)
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FROM stock_logs s2 WHERE s2.id <= stock_logs.id) as running_balance
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FROM stock_logs
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) as t
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ORDER BY id DESC
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LIMIT ? OFFSET ?`
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rows, err := database.DB.Query(query, limit, offset)
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if err != nil {
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return nil, 0, err
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}
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defer rows.Close()
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var logs []model.StockLog
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for rows.Next() {
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var log model.StockLog
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err := rows.Scan(&log.ID, &log.MaterialID, &log.Type, &log.Quantity, &log.RelatedOrderType, &log.RelatedOrderID, &log.CreatedAt)
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if err != nil {
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return nil, 0, err
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}
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logs = append(logs, log)
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}
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return logs, total, nil
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}
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// GetAllLogsWithBalance returns logs ordered newest-first with correct running balance.
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// Balance = stock level BEFORE this log's change was applied.
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// Strategy: Walk rows from oldest to newest within the page, accumulating balance.
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// The starting balance for the oldest row is: total on-hand - sum(all deltas for this material newer than the page).
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func (r *StockRepo) GetAllLogsWithBalance(limit, offset int) ([]model.StockLog, int64, error) {
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var total int64
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if err := database.DB.QueryRow(`SELECT COUNT(*) FROM stock_logs`).Scan(&total); err != nil {
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return nil, 0, err
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}
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// Fetch page rows ordered newest-first (id DESC).
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rows, err := database.DB.Query(`
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SELECT id, material_id, type, quantity, related_order_type, related_order_id, created_at
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FROM stock_logs ORDER BY id DESC LIMIT ? OFFSET ?`, limit, offset)
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if err != nil {
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return nil, 0, err
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}
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defer rows.Close()
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type rowData struct {
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log model.StockLog
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delta int
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}
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var pageRows []rowData
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materialIDs := make(map[int64]bool)
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for rows.Next() {
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var r rowData
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if err := rows.Scan(&r.log.ID, &r.log.MaterialID, &r.log.Type, &r.log.Quantity,
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&r.log.RelatedOrderType, &r.log.RelatedOrderID, &r.log.CreatedAt); err != nil {
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return nil, 0, err
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}
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if r.log.Type == "in" {
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r.delta = r.log.Quantity
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} else {
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r.delta = -r.log.Quantity
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}
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pageRows = append(pageRows, r)
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materialIDs[r.log.MaterialID] = true
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}
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if len(pageRows) == 0 {
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return []model.StockLog{}, total, nil
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}
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// Get initialBalance: total on-hand of this material minus all deltas for this material.
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// This gives the balance BEFORE the oldest log in this page was applied.
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initialBalances := make(map[int64]decimal.Decimal)
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for mid := range materialIDs {
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var delta int
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database.DB.QueryRow(`
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SELECT COALESCE(SUM(CASE WHEN type='in' THEN quantity ELSE -quantity END), 0)
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FROM stock_logs WHERE material_id = ?`, mid).Scan(&delta)
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var totalOnHand decimal.Decimal
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if err := database.DB.QueryRow(`SELECT COALESCE(SUM(on_hand), 0) FROM inventory_balances WHERE material_id = ?`, mid).Scan(&totalOnHand); err != nil {
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return nil, 0, err
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}
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initialBalances[mid] = totalOnHand.Sub(decimal.NewFromInt(int64(delta)))
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}
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// Process from OLDEST to NEWEST within the page (reverse order of our DESC result).
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// balance_for_oldest = total_on_hand - newer_than_page_delta
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// balance_after_row = balance_before_row + delta
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for i := len(pageRows) - 1; i >= 0; i-- {
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r := &pageRows[i]
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bal := initialBalances[r.log.MaterialID]
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if r.log.Type == "in" {
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bal = bal.Add(decimal.NewFromInt(int64(r.log.Quantity)))
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} else {
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bal = bal.Sub(decimal.NewFromInt(int64(r.log.Quantity)))
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}
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r.log.RunningBalance = bal
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initialBalances[r.log.MaterialID] = bal
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}
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var logs []model.StockLog
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for _, r := range pageRows {
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logs = append(logs, r.log)
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}
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return logs, total, nil
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}
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// GetStock returns the current on-hand balance for a material across inventory dimensions.
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func (r *StockRepo) GetStock(materialID int64) (decimal.Decimal, error) {
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var stock decimal.Decimal
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err := database.DB.QueryRow(`SELECT COALESCE(SUM(on_hand), 0) FROM inventory_balances WHERE material_id = ?`, materialID).Scan(&stock)
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return stock, err
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}
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// GetStockForUpdateTx locks the legacy default location balance used by current inbound/outbound flows.
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func (r *StockRepo) GetStockForUpdateTx(tx *sql.Tx, materialID int64) (decimal.Decimal, error) {
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query := `SELECT ib.on_hand
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FROM inventory_balances ib
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JOIN organizations o ON o.id = ib.organization_id AND o.code = 'DEFAULT'
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JOIN warehouses w ON w.id = ib.warehouse_id AND w.code = 'DEFAULT'
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JOIN warehouse_locations l ON l.id = ib.location_id AND l.code = 'MAIN'
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WHERE ib.material_id = ? FOR UPDATE`
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var stock decimal.Decimal
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err := tx.QueryRow(query, materialID).Scan(&stock)
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if err == sql.ErrNoRows {
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return decimal.Zero, nil
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}
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return stock, err
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}
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// UpdateStockTx writes the legacy inbound/outbound change to the independent default inventory balance.
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func (r *StockRepo) UpdateStockTx(tx *sql.Tx, materialID int64, delta decimal.Decimal) error {
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query := `INSERT INTO inventory_balances (organization_id, warehouse_id, location_id, material_id, on_hand)
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SELECT o.id, w.id, l.id, ?, ?
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FROM organizations o
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JOIN warehouses w ON w.organization_id = o.id AND w.code = 'DEFAULT'
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JOIN warehouse_locations l ON l.warehouse_id = w.id AND l.code = 'MAIN'
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WHERE o.code = 'DEFAULT'
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ON DUPLICATE KEY UPDATE on_hand = on_hand + VALUES(on_hand), version = version + 1`
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result, err := tx.Exec(query, materialID, delta)
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if err != nil {
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return err
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}
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affected, err := result.RowsAffected()
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if err != nil {
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return err
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}
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if affected == 0 {
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return fmt.Errorf("default organization, warehouse, or location is missing")
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}
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return nil
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}
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const defaultWarehouseExistsSQL = `SELECT COUNT(*) FROM organizations o
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JOIN warehouses w ON w.organization_id = o.id AND w.code = 'DEFAULT'
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WHERE o.code = 'DEFAULT'`
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// execQuerier 同时被 *sql.DB 和 *sql.Tx 满足，让预警阈值的写入逻辑可以在入库事务里复用。
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type execQuerier interface {
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Exec(query string, args ...interface{}) (sql.Result, error)
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QueryRow(query string, args ...interface{}) *sql.Row
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}
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func upsertStockWarningRule(q execQuerier, materialID int64, minimumAvailable decimal.Decimal, enabled bool) error {
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result, err := q.Exec(upsertStockWarningRuleSQL, materialID, minimumAvailable, enabled)
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if err != nil {
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return err
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}
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affected, err := result.RowsAffected()
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if err != nil {
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return err
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}
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if affected == 0 {
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// MySQL 在两种情况下都返回 0 影响行：语句什么都没插入（找不到默认组织/仓库），
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// 以及传入的值和已存的行完全一致。所以要先区分清楚再决定是否报错。
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var exists int
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if err := q.QueryRow(defaultWarehouseExistsSQL).Scan(&exists); err != nil {
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return err
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}
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if exists == 0 {
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return fmt.Errorf("default organization or warehouse is missing")
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}
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}
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return nil
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}
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// UpdateWarningStock 把默认仓库的预警阈值写入库存域。
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func (r *StockRepo) UpdateWarningStock(materialID int64, minimumAvailable decimal.Decimal, enabled bool) error {
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return upsertStockWarningRule(database.DB, materialID, minimumAvailable, enabled)
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}
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// UpdateWarningStockTx 在入库事务内写入预警阈值，保证物料的第一个阈值和它的第一行库存
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// 同时落库。
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func (r *StockRepo) UpdateWarningStockTx(tx *sql.Tx, materialID int64, minimumAvailable decimal.Decimal, enabled bool) error {
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return upsertStockWarningRule(tx, materialID, minimumAvailable, enabled)
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}
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|
||
func (r *StockRepo) DeleteLogs(orderType string, orderID int64) error {
|
||
query := `DELETE FROM stock_logs WHERE related_order_type = ? AND related_order_id = ?`
|
||
_, err := database.DB.Exec(query, orderType, orderID)
|
||
return err
|
||
}
|
||
|
||
// CreateLogTx creates a stock log within a transaction
|
||
func (r *StockRepo) CreateLogTx(tx *sql.Tx, log *model.StockLog) error {
|
||
query := `INSERT INTO stock_logs (material_id, type, quantity, related_order_type, related_order_id) VALUES (?, ?, ?, ?, ?)`
|
||
result, err := tx.Exec(query, log.MaterialID, log.Type, log.Quantity, log.RelatedOrderType, log.RelatedOrderID)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
id, err := result.LastInsertId()
|
||
if err != nil {
|
||
return err
|
||
}
|
||
log.ID = id
|
||
return nil
|
||
}
|
||
|
||
// DeleteLogsTx deletes stock logs within a transaction
|
||
func (r *StockRepo) DeleteLogsTx(tx *sql.Tx, orderType string, orderID int64) error {
|
||
query := `DELETE FROM stock_logs WHERE related_order_type = ? AND related_order_id = ?`
|
||
_, err := tx.Exec(query, orderType, orderID)
|
||
return err
|
||
}
|
||
|
||
func (r *StockRepo) GetInventoryBalanceDetails(materialID int64) ([]model.InventoryBalanceDetail, error) {
|
||
query := `
|
||
SELECT ib.id, ib.organization_id, o.name, ib.warehouse_id, w.name,
|
||
ib.location_id, l.name, ib.material_id, ib.on_hand, ib.reserved,
|
||
ib.locked, ib.in_transit, ib.updated_at
|
||
FROM inventory_balances ib
|
||
JOIN organizations o ON o.id = ib.organization_id
|
||
JOIN warehouses w ON w.id = ib.warehouse_id
|
||
JOIN warehouse_locations l ON l.id = ib.location_id
|
||
WHERE ib.material_id = ?
|
||
ORDER BY ib.id`
|
||
rows, err := database.DB.Query(query, materialID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
defer rows.Close()
|
||
|
||
var details []model.InventoryBalanceDetail
|
||
for rows.Next() {
|
||
var d model.InventoryBalanceDetail
|
||
if err := rows.Scan(&d.ID, &d.OrganizationID, &d.Organization, &d.WarehouseID, &d.Warehouse,
|
||
&d.LocationID, &d.Location, &d.MaterialID, &d.OnHand, &d.Reserved,
|
||
&d.Locked, &d.InTransit, &d.UpdatedAt); err != nil {
|
||
return nil, err
|
||
}
|
||
details = append(details, d)
|
||
}
|
||
return details, rows.Err()
|
||
}
|