Database

metis_core::dal::database

Struct Database 

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

Database connection and migration management

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impl Database

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pub fn new( connection_string: &str, ) -> Result<Self, Box<dyn Error + Send + Sync>>

Create a new database connection and run migrations

§Arguments
  • connection_string - SQLite connection string (e.g., “:memory:”, “database.db”, “file:database.db?mode=rw”)
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pub fn get_connection( &self, ) -> Result<SqliteConnection, Box<dyn Error + Send + Sync>>

Get a new connection to the database

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pub fn repository( &self, ) -> Result<DocumentRepository, Box<dyn Error + Send + Sync>>

Get a document repository with a new connection

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pub fn into_repository(self) -> DocumentRepository

Get a document repository (consumes the database) - kept for compatibility

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pub fn configuration_repository( &self, ) -> Result<ConfigurationRepository, Box<dyn Error + Send + Sync>>

Get a configuration repository with a new connection

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impl<T> AggregateExpressionMethods for T

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fn aggregate_distinct(self) -> Self::Output
where Self: DistinctDsl,

DISTINCT modifier for aggregate functions Read more
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fn aggregate_all(self) -> Self::Output
where Self: AllDsl,

ALL modifier for aggregate functions Read more
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fn aggregate_filter<P>(self, f: P) -> Self::Output
where P: AsExpression<Bool>, Self: FilterDsl<<P as AsExpression<Bool>>::Expression>,

Add an aggregate function filter Read more
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fn aggregate_order<O>(self, o: O) -> Self::Output
where Self: OrderAggregateDsl<O>,

Add an aggregate function order Read more
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impl<T> Any for T
where T: 'static + ?Sized,

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fn into(self) -> U

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impl<T> IntoSql for T

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fn into_sql<T>(self) -> Self::Expression
where Self: Sized + AsExpression<T>, T: SqlType + TypedExpressionType,

Convert self to an expression for Diesel’s query builder. Read more
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fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression
where &'a Self: AsExpression<T>, T: SqlType + TypedExpressionType,

Convert &self to an expression for Diesel’s query builder. Read more
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Add a order clause to the current window function Read more
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Add a frame clause to the current window function Read more