Implement Room Database Entity for Todo Items

[Vuk7912]

Implement Room Database Entity for Todo Items

Description

Task

Create Room database entity for Todo items

Acceptance Criteria

• Define a Room database entity representing Todo items
• Implement database schema with Room annotations
• Support auto-generated primary key
• Allow optional description and due date
• Validate todo item title during creation
• Provide default values for optional fields
• Ensure type safety and null handling

Summary of Work

This pull request introduces the Room database entity for Todo items, establishing a robust and well-defined database schema for storing and managing todo items in the Android application.

Key Implementation Details:

• Created TodoEntity data class with Room annotations
• Defined comprehensive properties for todo items:
  • Unique auto-generated ID
  • Title (required, non-blank)
  • Optional description
  • Completion status
  • Creation timestamp
  • Optional due date

Entity Characteristics:

• Uses @entity annotation with "todos" table name
• Implements input validation via init block
• Supports nullable and optional fields
• Uses LocalDateTime for timestamp handling
• Follows Room database best practices

Validation Implemented:

• Enforces non-blank title during object creation
• Prevents creation of todo items with empty titles
• Provides default values for optional fields

Testing Approach:

• Comprehensive unit tests covering:
  • Valid todo item creation
  • Full details todo item creation
  • Title validation (preventing blank/whitespace titles)
  • Default value assertions

Changes Made

• Created TodoEntity.kt with Room database entity definition
• Added Room annotations for database mapping
• Implemented input validation for todo item creation
• Defined comprehensive properties for todo items

Tests

• Unit test for creating todo item with valid title
• Unit test for creating todo item with full details
• Unit test to prevent todo item creation with blank title
• Unit test to prevent todo item creation with whitespace title

Signatures

Staking Key

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Public Key

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