Connection

Struct Connection 

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

A Seshat database connection that can be used for reading.

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impl Connection

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pub fn load_checkpoints(&self) -> Result<Vec<CrawlerCheckpoint>>

Load all the previously stored crawler checkpoints from the database.

§Arguments
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pub fn is_empty(&self) -> Result<bool>

Is the database empty. Returns true if the database is empty, false otherwise.

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pub fn is_room_indexed(&self, room_id: &str) -> Result<bool>

Is a room already indexed.

Returns true if the database contains events from a room, false otherwise.

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pub fn get_stats(&self) -> Result<DatabaseStats>

Get statistical information of the database.

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pub fn load_file_events( &self, load_config: &LoadConfig, ) -> Result<Vec<(String, Profile)>>

Load events that contain an mxc URL to a file.

§Arguments
  • load_config - Configuration deciding which events and how many of them should be loaded.
§Examples
let config = LoadConfig::new("!testroom:localhost").limit(10);
let result = connection.load_file_events(&config);

Returns a list of tuples containing the serialized events and the profile of the sender at the time when the event was sent.

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pub fn get_user_version(&self) -> Result<i64>

Get the user version stored in the database.

This version isn’t used anywhere internally and can be set by the user to signal changes between the JSON that gets stored inside of Seshat.

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pub fn set_user_version(&self, version: i64) -> Result<()>

Set the user version to the given version.

§Arguments
  • version - The new version that will be stored in the database.

Trait Implementations§

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impl Deref for Connection

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type Target = PooledConnection<SqliteConnectionManager>

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

Dereferences the value.
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impl DerefMut for Connection

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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fn from(t: T) -> T

Returns the argument unchanged.

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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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type Output = T

Should always be Self
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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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Performs the conversion.
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