ConnectionTrait

sea_orm

Trait ConnectionTrait 

Source 
pub trait ConnectionTrait {
    // Required methods
    fn get_database_backend(&self) -> DbBackend;
    fn execute_raw(&self, stmt: Statement) -> Result<ExecResult, DbErr>;
    fn execute_unprepared(&self, sql: &str) -> Result<ExecResult, DbErr>;
    fn query_one_raw(
        &self,
        stmt: Statement,
    ) -> Result<Option<QueryResult>, DbErr>;
    fn query_all_raw(&self, stmt: Statement) -> Result<Vec<QueryResult>, DbErr>;

    // Provided methods
    fn execute<S: StatementBuilder>(
        &self,
        stmt: &S,
    ) -> Result<ExecResult, DbErr> { ... }
    fn query_one<S: StatementBuilder>(
        &self,
        stmt: &S,
    ) -> Result<Option<QueryResult>, DbErr> { ... }
    fn query_all<S: StatementBuilder>(
        &self,
        stmt: &S,
    ) -> Result<Vec<QueryResult>, DbErr> { ... }
    fn support_returning(&self) -> bool { ... }
    fn is_mock_connection(&self) -> bool { ... }
}
Expand description

The generic API for a database connection that can perform query or execute statements. It abstracts database connection and transaction

Required Methods§

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fn get_database_backend(&self) -> DbBackend

Get the database backend for the connection. This depends on feature flags enabled.

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fn execute_raw(&self, stmt: Statement) -> Result<ExecResult, DbErr>

Execute a Statement

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fn execute_unprepared(&self, sql: &str) -> Result<ExecResult, DbErr>

Execute a unprepared Statement

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fn query_one_raw(&self, stmt: Statement) -> Result<Option<QueryResult>, DbErr>

Execute a Statement and return a single row of QueryResult

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fn query_all_raw(&self, stmt: Statement) -> Result<Vec<QueryResult>, DbErr>

Execute a Statement and return a vector of QueryResult

Provided Methods§

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fn execute<S: StatementBuilder>(&self, stmt: &S) -> Result<ExecResult, DbErr>

Execute a [QueryStatement]

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fn query_one<S: StatementBuilder>( &self, stmt: &S, ) -> Result<Option<QueryResult>, DbErr>

Execute a [QueryStatement] and return a single row of QueryResult

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fn query_all<S: StatementBuilder>( &self, stmt: &S, ) -> Result<Vec<QueryResult>, DbErr>

Execute a [QueryStatement] and return a vector of QueryResult

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fn support_returning(&self) -> bool

Check if the connection supports RETURNING syntax on insert and update

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fn is_mock_connection(&self) -> bool

Check if the connection is a test connection for the Mock database

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§