52 lines
1.6 KiB
Rust
52 lines
1.6 KiB
Rust
use super::adapter::ToSqlParams;
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use super::clients::*;
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use crate::config::{DatabaseConfig, SupportedDatabaseClient};
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use crate::error::StdResult;
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pub type AnyConnection = Box<dyn DatabaseConnection>;
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pub trait OpenDatabaseConnection: Sized {
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fn open(connection_string: &str) -> StdResult<Self>;
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}
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pub trait DatabaseConnection {
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fn migration_table_stmt(&self) -> String;
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fn batch_execute(&mut self, query: &str) -> StdResult<()>;
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fn execute<'b>(&mut self, query: &str, params: ToSqlParams<'b>) -> StdResult<u64>;
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fn query<'b>(&mut self, query: &str, params: ToSqlParams<'b>) -> StdResult<Vec<Vec<String>>>;
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}
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pub(crate) struct DatabaseConnectionManager {
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conn: AnyConnection,
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}
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impl DatabaseConnectionManager {
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pub fn connect_with_string(
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config: &DatabaseConfig,
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connection_string: &str,
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) -> StdResult<Self> {
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let conn: AnyConnection = match config.client() {
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#[cfg(feature = "postgres")]
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SupportedDatabaseClient::Postgres => {
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Box::new(PostgresConnection::open(&connection_string)?)
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}
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#[cfg(feature = "mysql")]
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SupportedDatabaseClient::Mysql => Box::new(MySqlConnection::open(&connection_string)?),
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};
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Ok(DatabaseConnectionManager { conn })
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}
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pub fn connect(config: &DatabaseConfig) -> StdResult<Self> {
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let connection_string = config.connection_string()?;
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Self::connect_with_string(config, &connection_string)
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}
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pub fn connection(&mut self) -> &mut AnyConnection {
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&mut self.conn
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}
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}
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