getBudgetMap(budgetMonthID){
        this.rows = [];
        this.categoryService.getCategory(budgetMonthID).subscribe(category =>{
            this.categoryList = category;
            this.categoryList.forEach(category => {

                this.transactionService.getTransaction(budgetMonthID, category.id).subscribe(transaction => {
                    this.rows = this.rows.concat(transaction);
                })

            })
        )
    }