tern_core/executor/sqlx_backend/
mysql.rs

1//! [`Executor`] for [`sqlx::MySqlPool`][mysql-pool].
2//!
3//! [`Executor`]: crate::migration::Executor
4//! [mysql-pool]: https://docs.rs/sqlx/0.8.3/sqlx/type.MySqlPool.html
5use sqlx::MySql;
6
7use super::pool::SqlxExecutor;
8use crate::migration::{AppliedMigration, Query, QueryRepository};
9
10/// Specialization of `SqlxExecutor` to `sqlx::MySqlPool`.
11pub type SqlxMySqlExecutor = SqlxExecutor<MySql, SqlxMySqlQueryRepo>;
12
13/// The schema history table queries for mysql.
14#[derive(Debug, Clone)]
15pub struct SqlxMySqlQueryRepo;
16
17impl QueryRepository for SqlxMySqlQueryRepo {
18    fn create_history_if_not_exists_query(history_table: &str) -> Query {
19        let sql = format!(
20            "
21CREATE TABLE IF NOT EXISTS {history_table}(
22  version bigint PRIMARY KEY,
23  description text NOT NULL,
24  content text NOT NULL,
25  duration_ms bigint NOT NULL,
26  applied_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
27);
28"
29        );
30
31        Query::new(sql)
32    }
33
34    fn drop_history_query(history_table: &str) -> Query {
35        let sql = format!("DROP TABLE IF EXISTS {history_table};");
36
37        Query::new(sql)
38    }
39
40    fn insert_into_history_query(
41        history_table: &str,
42        _: &AppliedMigration,
43    ) -> Query {
44        // With `sqlx` we're not going to use the `AppliedMigration`, the values
45        // will get in the query by `bind`ing them.
46        let sql = format!(
47            "
48INSERT INTO {history_table}(version, description, content, duration_ms, applied_at)
49  VALUES (?, ?, ?, ?, ?);
50"
51        );
52
53        Query::new(sql)
54    }
55
56    fn select_star_from_history_query(history_table: &str) -> Query {
57        let sql = format!(
58            "
59SELECT
60  version,
61  description,
62  content,
63  duration_ms,
64  applied_at
65FROM
66  {history_table}
67ORDER BY
68  version;
69"
70        );
71
72        Query::new(sql)
73    }
74
75    fn upsert_history_query(
76        history_table: &str,
77        _: &AppliedMigration,
78    ) -> Query {
79        let sql = format!(
80            "
81INSERT INTO {history_table}(version, description, content, duration_ms, applied_at)
82  VALUES (?, ?, ?, ?, ?)
83  ON DUPLICATE_KEY
84  UPDATE
85    description = VALUES(description),
86    content = VALUES(content),
87    duration_ms = VALUES(duration_ms),
88    applied_at = VALUES(applied_at)
89"
90        );
91
92        Query::new(sql)
93    }
94}
tern_core/executor/sqlx_backend/mysql.rs

tern_core/executor/sqlx_backend/
mysql.rs
