451 lines
12 KiB
Go
451 lines
12 KiB
Go
package queries
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import (
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"bssapp-backend/db"
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"bssapp-backend/models"
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"context"
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"database/sql"
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"fmt"
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"math"
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"strconv"
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"strings"
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"time"
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)
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type ProductPricingFilters struct {
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Search string
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ProductCode []string
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BrandGroup []string
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AskiliYan []string
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Kategori []string
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UrunIlkGrubu []string
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UrunAnaGrubu []string
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UrunAltGrubu []string
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Icerik []string
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Karisim []string
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Marka []string
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}
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type ProductPricingPage struct {
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Rows []models.ProductPricing
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TotalCount int
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TotalPages int
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Page int
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Limit int
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}
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func GetProductPricingPage(ctx context.Context, page int, limit int, filters ProductPricingFilters) (ProductPricingPage, error) {
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result := ProductPricingPage{
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Rows: []models.ProductPricing{},
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TotalCount: 0,
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TotalPages: 0,
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Page: page,
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Limit: limit,
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}
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if page <= 0 {
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page = 1
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}
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if limit <= 0 {
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limit = 500
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}
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offset := (page - 1) * limit
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paramIndex := 1
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args := make([]any, 0, 64)
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nextParam := func() string {
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name := "@p" + strconv.Itoa(paramIndex)
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paramIndex++
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return name
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}
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whereParts := []string{
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"ProductAtt42 IN ('SERI', 'AKSESUAR')",
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"IsBlocked = 0",
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"LEN(LTRIM(RTRIM(ProductCode))) = 13",
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}
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addInFilter := func(expr string, values []string) {
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clean := make([]string, 0, len(values))
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for _, v := range values {
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v = strings.TrimSpace(v)
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if v == "" {
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continue
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}
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clean = append(clean, v)
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}
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if len(clean) == 0 {
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return
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}
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ors := make([]string, 0, len(clean))
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for _, v := range clean {
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p := nextParam()
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ors = append(ors, expr+" = "+p)
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args = append(args, v)
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}
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whereParts = append(whereParts, "("+strings.Join(ors, " OR ")+")")
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}
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brandGroupExpr := `CASE ABS(CHECKSUM(LTRIM(RTRIM(ProductCode)))) % 3
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WHEN 0 THEN 'MARKA GRUBU A'
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WHEN 1 THEN 'MARKA GRUBU B'
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ELSE 'MARKA GRUBU C'
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END`
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addInFilter("LTRIM(RTRIM(ProductCode))", filters.ProductCode)
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addInFilter(brandGroupExpr, filters.BrandGroup)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt45Desc)), '')", filters.AskiliYan)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt44Desc)), '')", filters.Kategori)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt42Desc)), '')", filters.UrunIlkGrubu)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt01Desc)), '')", filters.UrunAnaGrubu)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt02Desc)), '')", filters.UrunAltGrubu)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt41Desc)), '')", filters.Icerik)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt29Desc)), '')", filters.Karisim)
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addInFilter("COALESCE(LTRIM(RTRIM(ProductAtt10Desc)), '')", filters.Marka)
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if q := strings.TrimSpace(filters.Search); q != "" {
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p := nextParam()
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args = append(args, "%"+q+"%")
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whereParts = append(whereParts, "("+strings.Join([]string{
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"LTRIM(RTRIM(ProductCode)) LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt45Desc)), '') LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt44Desc)), '') LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt42Desc)), '') LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt01Desc)), '') LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt02Desc)), '') LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt41Desc)), '') LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt29Desc)), '') LIKE " + p,
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"COALESCE(LTRIM(RTRIM(ProductAtt10Desc)), '') LIKE " + p,
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}, " OR ")+")")
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}
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whereSQL := strings.Join(whereParts, " AND ")
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countQuery := `
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SELECT COUNT(DISTINCT LTRIM(RTRIM(ProductCode)))
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FROM ProductFilterWithDescription('TR')
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WHERE ` + whereSQL + `;
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`
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var totalCount int
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if err := db.MssqlDB.QueryRowContext(ctx, countQuery, args...).Scan(&totalCount); err != nil {
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return result, err
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}
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result.TotalCount = totalCount
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if totalCount == 0 {
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result.TotalPages = 0
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result.Page = 1
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return result, nil
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}
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totalPages := int(math.Ceil(float64(totalCount) / float64(limit)))
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if totalPages <= 0 {
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totalPages = 1
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}
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if page > totalPages {
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page = totalPages
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offset = (page - 1) * limit
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}
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result.Page = page
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result.Limit = limit
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result.TotalPages = totalPages
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// Stage 1: fetch only paged products first (fast path).
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productQuery := `
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IF OBJECT_ID('tempdb..#req_codes') IS NOT NULL DROP TABLE #req_codes;
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IF OBJECT_ID('tempdb..#stock_base') IS NOT NULL DROP TABLE #stock_base;
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SELECT
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f.ProductCode,
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MAX(f.BrandGroupSec) AS BrandGroupSec,
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MAX(f.AskiliYan) AS AskiliYan,
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MAX(f.Kategori) AS Kategori,
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MAX(f.UrunIlkGrubu) AS UrunIlkGrubu,
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MAX(f.UrunAnaGrubu) AS UrunAnaGrubu,
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MAX(f.UrunAltGrubu) AS UrunAltGrubu,
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MAX(f.Icerik) AS Icerik,
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MAX(f.Karisim) AS Karisim,
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MAX(f.Marka) AS Marka
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INTO #req_codes
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FROM (
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SELECT
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LTRIM(RTRIM(ProductCode)) AS ProductCode,
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` + brandGroupExpr + ` AS BrandGroupSec,
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COALESCE(LTRIM(RTRIM(ProductAtt45Desc)), '') AS AskiliYan,
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COALESCE(LTRIM(RTRIM(ProductAtt44Desc)), '') AS Kategori,
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COALESCE(LTRIM(RTRIM(ProductAtt42Desc)), '') AS UrunIlkGrubu,
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COALESCE(LTRIM(RTRIM(ProductAtt01Desc)), '') AS UrunAnaGrubu,
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COALESCE(LTRIM(RTRIM(ProductAtt02Desc)), '') AS UrunAltGrubu,
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COALESCE(LTRIM(RTRIM(ProductAtt41Desc)), '') AS Icerik,
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COALESCE(LTRIM(RTRIM(ProductAtt29Desc)), '') AS Karisim,
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COALESCE(LTRIM(RTRIM(ProductAtt10Desc)), '') AS Marka
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FROM ProductFilterWithDescription('TR')
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WHERE ` + whereSQL + `
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) f
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GROUP BY f.ProductCode;
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CREATE CLUSTERED INDEX IX_req_codes_ProductCode ON #req_codes(ProductCode);
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SELECT
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LTRIM(RTRIM(s.ItemCode)) AS ItemCode,
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SUM(s.In_Qty1 - s.Out_Qty1) AS InventoryQty1
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INTO #stock_base
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FROM trStock s WITH(NOLOCK)
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INNER JOIN #req_codes rc
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ON rc.ProductCode = LTRIM(RTRIM(s.ItemCode))
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WHERE s.ItemTypeCode = 1
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AND LEN(LTRIM(RTRIM(s.ItemCode))) = 13
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GROUP BY LTRIM(RTRIM(s.ItemCode));
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CREATE CLUSTERED INDEX IX_stock_base_ItemCode ON #stock_base(ItemCode);
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SELECT
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rc.ProductCode,
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rc.BrandGroupSec,
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rc.AskiliYan,
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rc.Kategori,
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rc.UrunIlkGrubu,
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rc.UrunAnaGrubu,
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rc.UrunAltGrubu,
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rc.Icerik,
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rc.Karisim,
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rc.Marka
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FROM #req_codes rc
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LEFT JOIN #stock_base sb
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ON sb.ItemCode = rc.ProductCode
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ORDER BY
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CAST(ROUND(ISNULL(sb.InventoryQty1, 0), 2) AS DECIMAL(18, 2)) DESC,
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rc.ProductCode ASC
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OFFSET ` + strconv.Itoa(offset) + ` ROWS
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FETCH NEXT ` + strconv.Itoa(limit) + ` ROWS ONLY;
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`
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var (
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rows *sql.Rows
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rowsErr error
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)
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for attempt := 1; attempt <= 3; attempt++ {
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var err error
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rows, err = db.MssqlDB.QueryContext(ctx, productQuery, args...)
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if err == nil {
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rowsErr = nil
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break
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}
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rowsErr = err
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if ctx.Err() != nil || !isTransientMSSQLNetworkError(err) || attempt == 3 {
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break
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}
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wait := time.Duration(attempt*300) * time.Millisecond
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select {
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case <-ctx.Done():
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break
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case <-time.After(wait):
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}
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}
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if rowsErr != nil {
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return result, rowsErr
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}
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defer rows.Close()
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out := make([]models.ProductPricing, 0, limit)
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for rows.Next() {
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var item models.ProductPricing
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if err := rows.Scan(
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&item.ProductCode,
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&item.BrandGroupSec,
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&item.AskiliYan,
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&item.Kategori,
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&item.UrunIlkGrubu,
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&item.UrunAnaGrubu,
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&item.UrunAltGrubu,
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&item.Icerik,
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&item.Karisim,
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&item.Marka,
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); err != nil {
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return result, err
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}
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out = append(out, item)
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}
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if err := rows.Err(); err != nil {
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return result, err
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}
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if len(out) == 0 {
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result.Rows = out
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return result, nil
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}
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// Stage 2: fetch metrics only for paged product codes.
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codes := make([]string, 0, len(out))
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for _, item := range out {
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codes = append(codes, strings.TrimSpace(item.ProductCode))
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}
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valueRows := make([]string, 0, len(codes))
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metricArgs := make([]any, 0, len(codes))
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for i, code := range codes {
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paramName := "@p" + strconv.Itoa(i+1)
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valueRows = append(valueRows, "("+paramName+")")
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metricArgs = append(metricArgs, code)
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}
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metricsQuery := `
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WITH req_codes AS (
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SELECT DISTINCT LTRIM(RTRIM(v.ProductCode)) AS ProductCode
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FROM (VALUES ` + strings.Join(valueRows, ",") + `) v(ProductCode)
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WHERE LEN(LTRIM(RTRIM(v.ProductCode))) > 0
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),
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latest_base_price AS (
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SELECT
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LTRIM(RTRIM(b.ItemCode)) AS ItemCode,
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CAST(b.Price AS DECIMAL(18, 2)) AS CostPrice,
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CONVERT(VARCHAR(10), b.PriceDate, 23) AS LastPricingDate,
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ROW_NUMBER() OVER (
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PARTITION BY LTRIM(RTRIM(b.ItemCode))
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ORDER BY b.PriceDate DESC, b.LastUpdatedDate DESC
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) AS rn
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FROM prItemBasePrice b
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INNER JOIN req_codes rc
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ON rc.ProductCode = LTRIM(RTRIM(b.ItemCode))
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WHERE b.ItemTypeCode = 1
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AND b.BasePriceCode = 1
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AND LTRIM(RTRIM(b.CurrencyCode)) = 'USD'
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),
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stock_entry_dates AS (
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SELECT
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LTRIM(RTRIM(s.ItemCode)) AS ItemCode,
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CONVERT(VARCHAR(10), MAX(s.OperationDate), 23) AS StockEntryDate
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FROM trStock s WITH(NOLOCK)
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INNER JOIN req_codes rc
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ON rc.ProductCode = LTRIM(RTRIM(s.ItemCode))
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WHERE s.ItemTypeCode = 1
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AND LEN(LTRIM(RTRIM(s.ItemCode))) = 13
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AND s.In_Qty1 > 0
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AND LTRIM(RTRIM(s.InnerProcessCode)) = 'OP'
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AND LTRIM(RTRIM(s.WarehouseCode)) IN (
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'1-0-14','1-0-10','1-0-8','1-2-5','1-2-4','1-0-12','100','1-0-28',
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'1-0-24','1-2-6','1-1-14','1-0-2','1-0-52','1-1-2','1-0-21','1-1-3',
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'1-0-33','101','1-014','1-0-49','1-0-36'
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)
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GROUP BY LTRIM(RTRIM(s.ItemCode))
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),
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stock_base AS (
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SELECT
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LTRIM(RTRIM(s.ItemCode)) AS ItemCode,
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SUM(s.In_Qty1 - s.Out_Qty1) AS InventoryQty1
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FROM trStock s WITH(NOLOCK)
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INNER JOIN req_codes rc
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ON rc.ProductCode = LTRIM(RTRIM(s.ItemCode))
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WHERE s.ItemTypeCode = 1
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AND LEN(LTRIM(RTRIM(s.ItemCode))) = 13
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GROUP BY LTRIM(RTRIM(s.ItemCode))
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),
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pick_base AS (
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SELECT
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LTRIM(RTRIM(p.ItemCode)) AS ItemCode,
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SUM(p.Qty1) AS PickingQty1
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FROM PickingStates p
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INNER JOIN req_codes rc
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ON rc.ProductCode = LTRIM(RTRIM(p.ItemCode))
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WHERE p.ItemTypeCode = 1
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AND LEN(LTRIM(RTRIM(p.ItemCode))) = 13
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GROUP BY LTRIM(RTRIM(p.ItemCode))
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),
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reserve_base AS (
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SELECT
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LTRIM(RTRIM(r.ItemCode)) AS ItemCode,
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SUM(r.Qty1) AS ReserveQty1
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FROM ReserveStates r
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INNER JOIN req_codes rc
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ON rc.ProductCode = LTRIM(RTRIM(r.ItemCode))
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WHERE r.ItemTypeCode = 1
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AND LEN(LTRIM(RTRIM(r.ItemCode))) = 13
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GROUP BY LTRIM(RTRIM(r.ItemCode))
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),
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disp_base AS (
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SELECT
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LTRIM(RTRIM(d.ItemCode)) AS ItemCode,
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SUM(d.Qty1) AS DispOrderQty1
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FROM DispOrderStates d
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INNER JOIN req_codes rc
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ON rc.ProductCode = LTRIM(RTRIM(d.ItemCode))
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WHERE d.ItemTypeCode = 1
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AND LEN(LTRIM(RTRIM(d.ItemCode))) = 13
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GROUP BY LTRIM(RTRIM(d.ItemCode))
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)
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SELECT
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rc.ProductCode,
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COALESCE(lp.CostPrice, 0) AS CostPrice,
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CAST(ROUND(
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ISNULL(sb.InventoryQty1, 0)
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- ISNULL(pb.PickingQty1, 0)
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- ISNULL(rb.ReserveQty1, 0)
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- ISNULL(db.DispOrderQty1, 0)
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, 2) AS DECIMAL(18, 2)) AS StockQty,
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COALESCE(se.StockEntryDate, '') AS StockEntryDate,
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COALESCE(lp.LastPricingDate, '') AS LastPricingDate
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FROM req_codes rc
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LEFT JOIN latest_base_price lp
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ON lp.ItemCode = rc.ProductCode
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AND lp.rn = 1
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LEFT JOIN stock_entry_dates se
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ON se.ItemCode = rc.ProductCode
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LEFT JOIN stock_base sb
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ON sb.ItemCode = rc.ProductCode
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LEFT JOIN pick_base pb
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ON pb.ItemCode = rc.ProductCode
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LEFT JOIN reserve_base rb
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ON rb.ItemCode = rc.ProductCode
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LEFT JOIN disp_base db
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ON db.ItemCode = rc.ProductCode;
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`
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metricsRows, err := db.MssqlDB.QueryContext(ctx, metricsQuery, metricArgs...)
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if err != nil {
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return result, fmt.Errorf("metrics query failed: %w", err)
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}
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defer metricsRows.Close()
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type metrics struct {
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CostPrice float64
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StockQty float64
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StockEntryDate string
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LastPricingDate string
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}
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metricsByCode := make(map[string]metrics, len(out))
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for metricsRows.Next() {
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var (
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code string
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m metrics
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)
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if err := metricsRows.Scan(
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&code,
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&m.CostPrice,
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&m.StockQty,
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&m.StockEntryDate,
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&m.LastPricingDate,
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); err != nil {
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return result, err
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}
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metricsByCode[strings.TrimSpace(code)] = m
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}
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if err := metricsRows.Err(); err != nil {
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return result, err
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}
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for i := range out {
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if m, ok := metricsByCode[strings.TrimSpace(out[i].ProductCode)]; ok {
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out[i].CostPrice = m.CostPrice
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out[i].StockQty = m.StockQty
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out[i].StockEntryDate = m.StockEntryDate
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out[i].LastPricingDate = m.LastPricingDate
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}
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}
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result.Rows = out
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return result, nil
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}
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func isTransientMSSQLNetworkError(err error) bool {
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if err == nil {
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return false
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}
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e := strings.ToLower(err.Error())
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return strings.Contains(e, "i/o timeout") ||
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strings.Contains(e, "timeout") ||
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strings.Contains(e, "wsarecv") ||
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strings.Contains(e, "connection attempt failed") ||
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strings.Contains(e, "no connection could be made") ||
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strings.Contains(e, "broken pipe") ||
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strings.Contains(e, "connection reset")
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}
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