add pagination approval flows

internal/repository/approval_flow_repository.go

@@ -66,37 +66,64 @@ func (r *ApprovalFlowRepository) Delete(ctx context.Context, id uuid.UUID) error
 
 type ListApprovalFlowsFilter struct {
 	DepartmentID *uuid.UUID
+	Search       *string
 	IsActive     *bool
 }
 
 func (r *ApprovalFlowRepository) List(ctx context.Context, filter ListApprovalFlowsFilter, limit, offset int) ([]entities.ApprovalFlow, int64, error) {
-	db := DBFromContext(ctx, r.db)
-	query := db.WithContext(ctx).Model(&entities.ApprovalFlow{})
+	var list []entities.ApprovalFlow
+	var total int64
+
+	// Build base query for counting
+	countQuery := r.db.WithContext(ctx).Model(&entities.ApprovalFlow{})
 	
 	if filter.DepartmentID != nil {
-		query = query.Where("department_id = ?", *filter.DepartmentID)
-	}
-	if filter.IsActive != nil {
-		query = query.Where("is_active = ?", *filter.IsActive)
+		countQuery = countQuery.Where("department_id = ?", *filter.DepartmentID)
 	}
 	
-	var total int64
-	if err := query.Count(&total).Error; err != nil {
+	if filter.IsActive != nil {
+		countQuery = countQuery.Where("is_active = ?", *filter.IsActive)
+	}
+	
+	if filter.Search != nil && *filter.Search != "" {
+		like := "%" + *filter.Search + "%"
+		countQuery = countQuery.Where("name ILIKE ? OR description ILIKE ?", like, like)
+	}
+
+	// Get total count
+	if err := countQuery.Count(&total).Error; err != nil {
 		return nil, 0, err
 	}
+
+	// Build query for fetching data - BUAT QUERY BARU DARI AWAL
+	dataQuery := r.db.WithContext(ctx).Model(&entities.ApprovalFlow{})
 	
-	var list []entities.ApprovalFlow
-	if err := query.
+	if filter.DepartmentID != nil {
+		dataQuery = dataQuery.Where("department_id = ?", *filter.DepartmentID)
+	}
+	
+	if filter.IsActive != nil {
+		dataQuery = dataQuery.Where("is_active = ?", *filter.IsActive)
+	}
+	
+	if filter.Search != nil && *filter.Search != "" {
+		like := "%" + *filter.Search + "%"
+		dataQuery = dataQuery.Where("name ILIKE ? OR description ILIKE ?", like, like)
+	}
+
+	// Fetch data with pagination and preloads
+	if err := dataQuery.
+		Order("created_at DESC").
+		Limit(limit).
+		Offset(offset).
 		Preload("Department").
 		Preload("Steps", func(db *gorm.DB) *gorm.DB {
 			return db.Order("step_order ASC, parallel_group ASC")
 		}).
-		Order("created_at DESC").
-		Limit(limit).
-		Offset(offset).
 		Find(&list).Error; err != nil {
 		return nil, 0, err
 	}
+
 	return list, total, nil
 }