Implement TodoItem Data Access Object (DAO) for Room Database

[valin1993]

Implement TodoItem Data Access Object (DAO) for Room Database

Description

Task

Implement TodoItem Data Access Object (DAO) with basic CRUD methods for interacting with Todo items in the Room database

Acceptance Criteria

• Implements complete CRUD functionality for TodoItems
• Uses Room annotations and Kotlin Coroutines
• Provides methods for filtering todo items
• Supports batch operations
• Follows clean architecture principles

Summary of Work

This pull request implements a comprehensive Data Access Object (DAO) for Todo items, providing a robust abstraction layer for database operations in our Android Todo application.

Changes Made

• Created TodoItemDao interface with Room annotations
• Implemented CRUD (Create, Read, Update, Delete) methods for TodoItem
• Added methods for retrieving todo items with different filtering options
• Utilized Kotlin Coroutines and Flow for asynchronous database operations

Implementation Details

CRUD Operations

• insert(todoItem: TodoItem): Inserts a single todo item with REPLACE conflict strategy
• insertAll(todoItems: List<TodoItem>): Batch insert of multiple todo items
• update(todoItem: TodoItem): Updates an existing todo item
• delete(todoItem: TodoItem): Deletes a specific todo item
• deleteAll(): Removes all todo items from the database

Retrieval Methods

• getById(id: Long): Retrieves a single todo item by its ID
• getAllTodoItems(): Returns all todo items sorted by creation date
• getCompletedTodoItems(): Retrieves completed todo items
• getActiveTodoItems(): Retrieves active (non-completed) todo items

Utility Methods

• count(): Returns the total number of todo items in the database

Key Features

• Uses Room's @dao annotation for database interaction
• Supports suspend functions for coroutine-based asynchronous operations
• Returns Flow for reactive data streams
• Provides flexible querying options
• Handles database conflicts with REPLACE strategy

Testing Approach

• Comprehensive test coverage for all DAO methods
• Verifies correct insertion, update, deletion, and retrieval of todo items
• Checks edge cases and error scenarios
• Validates query results and data integrity

Notes

• Ensure proper error handling in repository and view model layers
• Consider adding pagination for large datasets in future updates

Changes Made

• Implemented TodoItemDao interface
• Added CRUD methods with Room annotations
• Created methods for retrieving todo items
• Used Kotlin Coroutines and Flow for async operations

Tests

• Test single todo item insertion
• Test batch todo item insertion
• Test todo item update
• Test todo item deletion
• Test retrieving todo items by ID
• Test retrieving all todo items
• Test retrieving completed todo items
• Test retrieving active todo items
• Test counting total todo items

Signatures

Staking Key

AfoZUkZfJSxTqy9XdG9qCSUsfqzySwuexqZzpD6oeYva: 2sKi965p71eQUSw1nSV9y6vtx8jXo75sGC5Yw1BPbVJGDM58wL7GsXj1MdLXzZDnf5ziw44EaQwEYMAuKpJ1PRRaNa8M8H96FZpvusdSvFf5Rc73m2ryisC3g9mS5gA3W2jFhECbxNgZ1SDQ57W9vq1m9UuWE7EoSWKvirgQHRvWqYeBPUdU9kAPR5tLD8oAyvM91SDfEPB9icL2swsiSy2mqsYAbYUXudH1uGyYqLwnw4Zm7g23goioKoQc3ARtKLizhuQZPrYabTcdmL2rcEEL3u18GcTzifAZSWoRjnpJE3KunpsxrrW9Nd5HAga31f1KhMSmyfUYWGyEWV6pLDQEPkEYz9vVJ8D3K4uwVaiwhLmqPizWUuTAnn1uZ9dxPpMx4sBiD1LAMLTffW3fAWCNt2JMx4zMjSrp

Public Key

D5VNc6HXDCJwfNP7nbNk7yTC96mW9m7UFtU4oHiK2H8T: SWqRFr6Pe8bd6oMort7ctqSpWmzUCdBcJ7akucAYXqDCrAYEtM3FBXRmksZ6VPXSg1Y8NHbFUJc584Bx9YU2v4ecfDEB1DMTXt4zsKG2uGyCH62orgFeuxChneT7qkYbKtJ2dxcN3kitmFRy6mKxymHhY1N8q8o8V9dATvCYUyfA9Nxw3b1HqoDfqrad44SFSFRfBJsFNgkzsB9oeeiVgnu4M3CKixrN32zxorbAWUu7ceD6seGfsXZd91rDFBZTwGZyhS7JHeM4GDqccnCPjj6EBMg7EteZLNDFBBTPngT89ZzXcyDmJTeJ6iZbK95LA3amRxLkTg3zbLQaSGBbub1C8CBXbdGWgRPiZ17TZqGwV7fCMpU36c4KRxMzZTYqZjUu1EaLsvdswREePLXehXjrvzn1ojkKdAc