Struct TodoRepository 

pub struct TodoRepository { /* private fields */ }

SQLite repository for session todo state.

Implementations

impl TodoRepository

pub fn new(path: &Path) -> Result<Self, TodoError>

Open or create a todo database at the given path.

Errors

Returns an error when the database file cannot be opened.

pub fn db_path(&self) -> &Path

Return the path to the SQLite database.

pub fn init_schema(&self) -> Result<(), TodoError>

Initialize todo tables.

Errors

Returns an error when SQLite rejects the schema.

pub fn create(&self, input: CreateTodo) -> Result<TodoItem, TodoError>

Create a todo item, or return an existing item with the same title in the same session (idempotent create).

Errors

Returns an error when the item cannot be persisted or looked up.

pub fn create_batch( &self, inputs: Vec<CreateTodo>, ) -> Result<Vec<TodoItem>, TodoError>

Create multiple todo items idempotently in one call.

Each item follows the same idempotency rule as [create]: if an item with the same title already exists in the session, the existing item is returned unchanged. Items within the same batch that share a title also deduplicate to the first occurrence.

Errors

Returns an error when any item cannot be persisted or looked up.

pub fn get( &self, session_id: Uuid, id: Uuid, ) -> Result<Option<TodoItem>, TodoError>

Get one todo item by id within a session.

Errors

Returns an error when SQLite fails.

pub fn list( &self, session_id: Uuid, query: TodoQuery, ) -> Result<Vec<TodoItem>, TodoError>

List todo items for a session.

Errors

Returns an error when SQLite fails or stored metadata cannot be parsed.

pub fn update( &self, session_id: Uuid, id: Uuid, update: TodoUpdate, ) -> Result<TodoItem, TodoError>

Update mutable todo fields.

Errors

Returns TodoError::NotFound when the item does not exist in the session.

pub fn update_status( &self, session_id: Uuid, id: Uuid, status: TodoStatus, ) -> Result<TodoItem, TodoError>

Update item status and maintain completed_at.

Errors

Returns TodoError::NotFound when the item does not exist in the session.

pub fn delete(&mut self, session_id: Uuid, id: Uuid) -> Result<bool, TodoError>

Delete an item and any dependency edges that reference it.

Errors

Returns an error when SQLite fails.

pub fn add_dependency( &self, session_id: Uuid, parent_id: Uuid, child_id: Uuid, ) -> Result<TodoDependency, TodoError>

Add a dependency edge after validating item existence and acyclicity.

Errors

Returns TodoError::DependencyCycle if adding the edge would create a cycle.

pub fn remove_dependency( &self, session_id: Uuid, parent_id: Uuid, child_id: Uuid, ) -> Result<bool, TodoError>

Remove a dependency edge.

Errors

Returns an error when SQLite fails.

pub fn list_dependencies( &self, session_id: Uuid, ) -> Result<Vec<TodoDependency>, TodoError>

List all dependency edges for a session.

Errors

Returns an error when SQLite fails.

Trait Implementations

impl Debug for TodoRepository

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.