TempDb

Struct TempDb 

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pub struct TempDb { /* private fields */ }
Expand description

Data structure to keep the temporary file holding the database alive, because it will get unlinked on drop.

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impl TempDb

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pub async fn new() -> Result<Self>

Creates a new database at a temporary path.

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Returns anyhow::Error if we can’t:

  • Create a new NamedTempFile for the database
  • Initialize the database at the temporary path

Methods from Deref<Target = Database>§

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pub async fn activate_wal(&self) -> Result<(), DatabaseError>

Enables the WAL

See https://sqlite.org/wal.html

§Errors

Returns DatabaseError if WAL activation fails.

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pub async fn count(&self) -> Result<i64, DatabaseError>

Queries the database to get a count of records it contains.

§Errors

Returns DatabaseError if the operation fails.

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pub async fn insert(&self, record: DbRecord) -> Result<i64, DatabaseError>

Inserts the given record into the Database.

Returns the ID of the inserted row.

§Errors

Returns DatabaseError if the insert operation fails.

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pub async fn delete(&self, id: i64) -> Result<usize, DatabaseError>

Deletes the record corresponding to the given id.

§Errors

Returns DatabaseError if the operation fails.

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pub async fn get_record(&self, id: i64) -> Result<DbRecord, DatabaseError>

Get a record from SQLite given an id.

§Errors

Returns DatabaseError if the operation fails.

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pub async fn get_many_records( &self, ids: &[i64], ) -> Result<Vec<DbRecord>, DatabaseError>

Get multiple records from SQLite given their IDs.

§Errors

Returns DatabaseError if the operation fails.

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pub async fn get_all_records(&self) -> Result<Vec<DbRecord>, DatabaseError>

Selects all rows in the records table, without any pagination.

§Errors

Returns DatabaseError if the operation fails.

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pub async fn get_all_meta(&self) -> Result<Vec<DbRecordMeta>, DatabaseError>

Selects all rows in the records table, without any pagination, and returns their metadata (all fields except serialized data of the page content).

§Errors

Returns DatabaseError if the operation fails.

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pub async fn get_all_ids(&self) -> Result<Vec<i64>, DatabaseError>

Returns all record IDs in SQLite.

§Errors

Returns DatabaseError if the operation fails.

Trait Implementations§

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impl Deref for TempDb

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type Target = Database

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.

Auto Trait Implementations§

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impl Freeze for TempDb

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impl !RefUnwindSafe for TempDb

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impl Send for TempDb

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impl Sync for TempDb

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impl Unpin for TempDb

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impl !UnwindSafe for TempDb

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🔬This is a nightly-only experimental API. (arbitrary_self_types)
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