Fix GORM method chaining state sharing bug in GetFeeReport

controllers/fee_controller.go

@@ -10,6 +10,7 @@ import (
 	"service-warungpos-go/models"
 
 	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
 )
 
 type FeeSummaryData struct {
@@ -92,18 +93,21 @@ func GetFeeReport(c *gin.Context) {
 	startDt := time.Date(dFrom.Year(), dFrom.Month(), dFrom.Day(), 0, 0, 0, 0, loc)
 	endDt := time.Date(dTo.Year(), dTo.Month(), dTo.Day(), 23, 59, 59, 0, loc)
 
-	baseQuery := config.DB.Table("orders").
-		Where("orders.payment_status = ? AND orders.created_at >= ? AND orders.created_at <= ?", "paid", startDt, endDt)
-
-	if companyIDStr != "" {
-		if cID, err := strconv.Atoi(companyIDStr); err == nil {
-			baseQuery = baseQuery.Where("orders.company_id = ?", cID)
+	// Helper local untuk membikin query fresh guna menghindari GORM method chaining state sharing bug (table name specified more than once)
+	getFreshFeeQuery := func() *gorm.DB {
+		q := config.DB.Table("orders").
+			Where("orders.payment_status = ? AND orders.created_at >= ? AND orders.created_at <= ?", "paid", startDt, endDt)
+		if companyIDStr != "" {
+			if cID, err := strconv.Atoi(companyIDStr); err == nil {
+				q = q.Where("orders.company_id = ?", cID)
+			}
 		}
+		return q
 	}
 
 	// 1. Summary keseluruhan
 	var summary FeeSummaryData
-	baseQuery.Select(`
+	getFreshFeeQuery().Select(`
 		count(orders.id) as total_transactions,
 		coalesce(sum(orders.total_amount), 0) as total_revenue,
 		coalesce(sum(orders.platform_fee), 0) as total_fee,
@@ -115,7 +119,7 @@ func GetFeeReport(c *gin.Context) {
 
 	// 2. Summary per perusahaan
 	var perCompany []CompanyFeeRow
-	baseQuery.Select(`
+	getFreshFeeQuery().Select(`
 		orders.company_id,
 		companies.name as company_name,
 		companies.fee_percentage,
@@ -132,7 +136,7 @@ func GetFeeReport(c *gin.Context) {
 
 	// 3. Summary per cabang
 	var perBranch []BranchFeeRow
-	baseQuery.Select(`
+	getFreshFeeQuery().Select(`
 		orders.company_id,
 		companies.name as company_name,
 		orders.branch_id,
@@ -151,8 +155,7 @@ func GetFeeReport(c *gin.Context) {
 
 	// 4. Daily breakdown
 	var dailyBreakdown []DailyFeeRow
-	// SQL DATE(created_at) di PostgreSQL
-	baseQuery.Select(`
+	getFreshFeeQuery().Select(`
 		DATE(orders.created_at) as day,
 		orders.company_id,
 		companies.name as company_name,