fix(BE-48): improve adjustment history filtering and fix pointer conversion

- Add search parameter to adjustment history API
- Fix JOIN query logic to avoid duplicate JOINs
- Use EXISTS subquery for cleaner product/warehouse filtering
- Fix pointer conversion issue in slice iteration
- Improve query performance and code readability

internal/modules/inventory/adjustments/controllers/adjustment.controller.go

@@ -48,7 +48,6 @@ func (u *AdjustmentController) AdjustmentHistory(c *fiber.Ctx) error {
 	query := &validation.Query{
 		Page:            c.QueryInt("page", 1),
 		Limit:           c.QueryInt("limit", 10),
-		Search:          c.Query("search", ""),
 		ProductID:       c.QueryInt("product_id", 0),
 		WarehouseID:     c.QueryInt("warehouse_id", 0),
 		TransactionType: c.Query("transaction_type", ""),

internal/modules/inventory/adjustments/services/adjustment.service.go

@@ -159,13 +159,24 @@ func (s *adjustmentService) AdjustmentHistory(c *fiber.Ctx, query *validation.Qu
 
 		db = db.Where("log_type = ?", entity.LogTypeAdjustment)
 
-		if query.Search != "" {
-			db = db.Where("note ILIKE ?", "%"+query.Search+"%")
-		}
-
 		if query.TransactionType != "" {
 			db = db.Where("transaction_type = ?", strings.ToUpper(query.TransactionType))
 		}
+		if query.ProductID > 0 {
+			db = db.Joins("JOIN product_warehouses ON product_warehouses.id = stock_logs.product_warehouse_id").
+				Where("product_warehouses.product_id = ?", query.ProductID)
+		}
+
+		if query.WarehouseID > 0 {
+			if query.ProductID > 0 {
+
+				db = db.Where("product_warehouses.warehouse_id = ?", query.WarehouseID)
+			} else {
+
+				db = db.Joins("JOIN product_warehouses ON product_warehouses.id = stock_logs.product_warehouse_id").
+					Where("product_warehouses.warehouse_id = ?", query.WarehouseID)
+			}
+		}
 
 		return db.Order("created_at DESC")
 	})
@@ -175,7 +186,6 @@ func (s *adjustmentService) AdjustmentHistory(c *fiber.Ctx, query *validation.Qu
 		return nil, 0, fiber.NewError(fiber.StatusInternalServerError, "Failed to get adjustment history")
 	}
 
-	// Convert to pointer slice
 	result := make([]*entity.StockLog, len(stockLogs))
 	for i, v := range stockLogs {
 		result[i] = &v

internal/modules/inventory/adjustments/validations/adjustment.validation.go

@@ -11,7 +11,6 @@ type Create struct {
 type Query struct {
 	Page            int    `query:"page" validate:"omitempty,min=1"`
 	Limit           int    `query:"limit" validate:"omitempty,min=1,max=100"`
-	Search          string `query:"search" validate:"omitempty"`
 	ProductID       int    `query:"product_id" validate:"omitempty,min=0"`
 	WarehouseID     int    `query:"warehouse_id" validate:"omitempty,min=0"`
 	TransactionType string `query:"transaction_type" validate:"omitempty,oneof=increase decrease"`

internal/modules/master/products/validations/product.validation.go

@@ -32,5 +32,5 @@ type Query struct {
 	Page              int    `query:"page" validate:"omitempty,number,min=1"`
 	Limit             int    `query:"limit" validate:"omitempty,number,min=1"`
 	Search            string `query:"search" validate:"omitempty,max=50"`
-	ProductCategoryID int   `query:"product_category_id" validate:"omitempty,number,min=1"`
+	ProductCategoryID int    `query:"product_category_id" validate:"omitempty,number,min=1"`
 }