code refactor

pkg/services/transaction_categories.go

@@ -33,7 +33,7 @@ func (s *TransactionCategoryService) GetAllCategoriesByUid(uid int64, categoryTy
 	}
 
 	condition := "uid=? AND deleted=?"
-	var conditionParams []interface{}
+	conditionParams := make([]interface{}, 0, 8)
 	conditionParams = append(conditionParams, uid)
 	conditionParams = append(conditionParams, false)
 

pkg/services/transactions.go

@@ -351,7 +351,7 @@ func (s *TransactionService) ModifyTransaction(transaction *models.Transaction,
 		return errs.ErrUserIdInvalid
 	}
 
-	var updateCols []string
+	updateCols := make([]string, 0, 16)
 
 	now := time.Now().Unix()
 

pkg/services/users.go

@@ -151,7 +151,7 @@ func (s *UserService) UpdateUser(user *models.User) (keyProfileUpdated bool, err
 		return false, errs.ErrUserIdInvalid
 	}
 
-	var updateCols []string
+	updateCols := make([]string, 0, 8)
 
 	now := time.Now().Unix()
 	keyProfileUpdated = false