Event Registration System

Build a data validation system for processing event registrations that handles various data types including dates, times, numbers, and collections.

Requirements

Your system should validate event registration data with the following fields:

Registration Fields

• event_id: A UUID that uniquely identifies the event
• participant_name: A text string for the participant's name
• email: The participant's email address
• registration_date: The date when registration was submitted (date only, no time)
• event_datetime: The full date and time when the event occurs
• ticket_count: A positive integer representing number of tickets (must be at least 1)
• total_cost: A decimal number representing the total cost in dollars
• tags: A set of unique text labels associated with this registration
• preferences: A dictionary mapping preference names (text) to boolean values
• notes: Optional text field for additional notes

Input Handling

The system should accept registration data in dictionary format and automatically:

• Convert string representations to appropriate types (e.g., "2024-03-15" to date object)
• Validate that UUIDs are properly formatted
• Ensure email addresses are valid
• Verify dates and times are valid temporal values
• Check that numbers meet specified constraints
• Handle collections (sets and dictionaries) appropriately

Output

After validation, the system should be able to:

• Convert validated data back to a dictionary format
• Serialize to JSON format

Test Cases

• The system validates a complete registration with all fields correctly typed @test
• The system converts string date "2024-06-15" to a proper date object @test
• The system converts string datetime "2024-06-15T14:30:00" to a proper datetime object @test
• The system rejects ticket_count of 0 as it must be positive @test
• The system converts string UUID "550e8400-e29b-41d4-a716-446655440000" to UUID object @test
• The system validates a preferences dictionary with boolean values @test
• The system handles a tags set ensuring uniqueness @test
• The system correctly serializes validated data to JSON format @test

Implementation

@generates

API

class EventRegistration:
    """
    Validates and manages event registration data with automatic type conversion.

    Should handle all specified fields with appropriate validation and type coercion.
    """
    pass

Dependencies { .dependencies }

pydantic { .dependency }

Provides data validation and type conversion support.