Function Description:
Actors: Cashier
Purpose: Create a new receipt.
Business rules:
• “Đối tượng” is a required string with a length ranging from 3 to 30 characters. The first character must not be a number. No special characters or blanks are allowed.
o "Ngày" is automatically set to the current date and cannot change.
"Tiền" is required, integer number, greater than 0 but not exceeding VND
• “Số phiếu” is generated automatically and cannot change.
• “Diễn giải” is optional but not exceeding 250 chars.
Function Details:
Normal case:
• All input data is valid, and a new receipt is successfully created.
• The Cashier clicks on the "Hủy" button, all fields will be cleared, and the screen will be reloaded.
Abnormal case:
• Data input is invalid, and invalid input notification is displayed below the corresponding field.
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