Struct Storage 

pub struct Storage { /* private fields */ }

Thread-safe wrapper around a rusqlite::Connection.

Implementations

impl Storage

pub fn open(path: impl AsRef<Path>) -> Result<Self>

Open a connection at path and apply all migrations.

pub fn in_memory() -> Result<Self>

Open an in-memory database. Useful for tests.

pub fn migrate(&self) -> Result<()>

Apply all pending migrations to the open connection.

pub fn save_graph(&self, id: &str, graph: &IntentGraph) -> Result<()>

Persist a graph by the given id, replacing any previous version.

pub fn load_graph(&self, id: &str) -> Result<Option<IntentGraph>>

Fetch a graph by id.

pub fn list_graphs(&self) -> Result<Vec<String>>

List all stored graph ids, most-recently-updated first.

pub fn delete_graph(&self, id: &str) -> Result<bool>

Delete a graph by id; returns true if a row was removed.

pub fn add_tag(&self, graph_id: &str, tag: &str) -> Result<bool>

Attach a tag to a graph. Returns true if the tag was newly inserted, false if the (graph_id, tag) pair was already present.

pub fn remove_tag(&self, graph_id: &str, tag: &str) -> Result<bool>

Remove a tag from a graph. Returns true if a row was deleted, false if the tag was not present.

pub fn list_tags(&self, graph_id: &str) -> Result<Vec<String>>

List the tags attached to a graph, in alphabetical order.

pub fn add_note(&self, graph_id: &str, body: &str) -> Result<i64>

Append a free-form note to a graph. Returns the new note id.

pub fn list_notes(&self, graph_id: &str) -> Result<Vec<Note>>

List notes attached to a graph, oldest first.

pub fn delete_note(&self, graph_id: &str, note_id: i64) -> Result<bool>

Delete a note by id, scoped to a specific graph. Returns true if a row was deleted, false otherwise (note did not exist for that graph).

Trait Implementations

impl Clone for Storage

fn clone(&self) -> Storage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Storage

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

Formats the value using the given formatter.