54 lines
1.5 KiB
Rust
54 lines
1.5 KiB
Rust
use crate::database::builder::merge_query_with_params;
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use crate::database::prelude::*;
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use crate::error::StdResult;
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use mysql::prelude::*;
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use mysql::{Pool, PooledConn};
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pub struct MySqlConnection {
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conn: PooledConn,
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}
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impl OpenDatabaseConnection for MySqlConnection {
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fn open(connection_string: &str) -> StdResult<Self> {
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let pool = Pool::new_manual(1, 1, connection_string)?;
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let conn = pool.get_conn()?;
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Ok(MySqlConnection { conn })
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}
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}
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impl DatabaseStatements for MySqlConnection {
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fn create_migration_table_stmt(&self, migrations_table_name: &str) -> String {
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format!(
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r#"CREATE TABLE IF NOT EXISTS {} (
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id int AUTO_INCREMENT PRIMARY KEY,
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name varchar(256) NOT NULL UNIQUE
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)"#,
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migrations_table_name
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)
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}
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}
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impl SupportsTransactionalDdl for MySqlConnection {}
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impl DatabaseConnection for MySqlConnection {
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fn batch_execute(&mut self, query: &str) -> StdResult<()> {
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self.conn.query_drop(query)?;
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Ok(())
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}
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fn execute<'b>(&mut self, query: &str, params: ToSqlParams<'b>) -> StdResult<u64> {
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let stmt = merge_query_with_params(query, params);
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let res = self.conn.query_first(stmt)?.unwrap_or_default();
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Ok(res)
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}
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fn query<'b>(&mut self, query: &str, params: ToSqlParams<'b>) -> StdResult<Vec<Vec<String>>> {
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let stmt = merge_query_with_params(query, params);
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let res = self.conn.query_map(stmt, |(column,)| vec![column])?;
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Ok(res)
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}
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}
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