Implement Room Database Entity for Todo Items

[CryptoSCK]

Implement Room Database Entity for Todo Items

Description

Task

Create Room database entity for Todo items

Acceptance Criteria

• Room entity created for Todo items
• All properties mapped to database columns
• Validation implemented for title and description
• Support for optional fields
• Auto-generated primary key
• Timestamps tracked automatically

Summary of Work

This pull request implements the Room database entity for Todo items, establishing a robust and validated database schema for storing todo items in the application.

Changes Made

• Created a Room database entity (Todo.kt) with the following key features:
  • Defined a data class annotated with @Entity for Room database mapping
  • Implemented primary key with auto-generation
  • Added column mappings for all Todo item properties
  • Included validation logic in the init block

Implementation Details

• Entity Properties:
  1. id: Auto-generated primary key
  2. title: Required, non-blank title with max length of 100 characters
  3. description: Optional description with max length of 500 characters
  4. isCompleted: Boolean flag to track todo item completion status
  5. createdAt: Timestamp of todo item creation (defaults to current time)
  6. dueDate: Optional due date for the todo item

Validation Implemented

• Ensures title is not blank
• Limits title to 100 characters
• Limits description to 500 characters (if provided)
• Uses Kotlin's require function for robust input validation

Database Schema

• Table Name: "todos"
• Columns mapped with appropriate Room annotations
• Supports nullable fields for flexible todo item creation

Notes

• Uses LocalDateTime for date and timestamp fields
• Follows Room database best practices
• Provides flexibility for future extensions

Changes Made

• Created Todo.kt with Room entity annotations
• Implemented property validation in init block
• Added column mappings for all properties
• Supported nullable and optional fields
• Used LocalDateTime for timestamps

Tests

• Verify entity creation with all valid properties
• Test validation for blank title
• Test title length validation
• Test description length validation
• Verify auto-generation of id
• Verify default values for optional fields

Signatures

Staking Key

941izj4WsQqBwNLsSgDf3BSKS1dJMbS1q9d2o23ZjBHp: VYBWNP1Xg2yxPnmXdKuZ4TQSPCSm5VmwHUgWnNacgKCEARfwSuZb41kqmiToDcC2nzPAFTLBz1U25k1LyZvDhu6vXyDnmyiRLApDzVSXuR39rQtj5KpbmyyFDHA4Z1EuftQZDr4fH2E8XzHDBZxvvsUewNcEZWTw15vtDtDTJS98wKwsxTbVLzy93eG151xgJp8x4mMZdPULe1CvxNXMvcvfBPjdo6LXtBURj9svx3qLFMxca4XhzeaiCbAzyFx6ShHkGqRM6b5uJHB76qN8unNdSmAH6G8so5Xd92WRaDNjZnLGSxwESiPfzmZHiqcBXc3mNGmVLB3qa86MELnYo8nFCVcD7ekGHuk56aEeLjiPCVFzTG9hpYqTT52nj5XncxsP6M6or6czLKSgkBRCaj9e11gcDnbcCtk

Public Key

EWghpH7Xb9HL74TitMBog5Vow8nFjpdJfNCa6hc2wfca: 3cd34Y7BJ5toemV3E7uEsG9RtdbuWrVtWiYbaskuWJhY8B5ST7DH1ndW4xoVLfTsskQDFYB5NMt1aMs7YPCAJoydvzYRn5sb8TpZTEkct7sz977nYeCCJbuBw64sMMiFFbzSuBN3vh4AssfS1YvzAx9TEHY5E4uQ2Y1iZRjkmUPqJggUNdvPFi1LCMhouBP3E6h9barEdVUaxR4jwkSNhrYaJb7pQp2NJEPgXpnST1zLrtfzM6JrRR7yHgrbkqBYGUKNFxzdK1MzNzPczgmx24QW2iLu8XRD3GLCZPRQYHt664xv7pKQkftEaDT9oNP94sYcQj69pKfRnpRfvJpHdYBbYkpC8FMmqhAxyJ4MHhVTRWQcnpJbZ841wSZbbBFvpeXEFfQVNKGpv88YAYgBkFjxyDrrZTuHRARA