diff --git a/README.md b/README.md index db20536..19190e1 100644 --- a/README.md +++ b/README.md @@ -80,6 +80,7 @@ Boolean values can be one of: | Defer Foreign Keys | `_defer_foreign_keys` \| `_defer_fk` | `boolean` | For more information see [PRAGMA defer_foreign_keys](https://www.sqlite.org/pragma.html#pragma_defer_foreign_keys) | | Foreign Keys | `_foreign_keys` \| `_fk` | `boolean` | For more information see [PRAGMA foreign_keys](https://www.sqlite.org/pragma.html#pragma_foreign_keys) | | Ignore CHECK Constraints | `_ignore_check_constraints` | `boolean` | For more information see [PRAGMA ignore_check_constraints](https://www.sqlite.org/pragma.html#pragma_ignore_check_constraints) | +| Journal Mode | `_journal` | | For more information see [PRAGMA journal_mode](https://www.sqlite.org/pragma.html#pragma_journal_mode) | | Mode | `mode` | | Access Mode of the database. For more information see [SQLite Open](https://www.sqlite.org/c3ref/open.html) | | Mutex Locking | `_mutex` | | Specify mutex mode. | | Recursive Triggers | `_recursive_triggers` \| `_rt` | `boolean` | For more information see [PRAGMA recursive_triggers](https://www.sqlite.org/pragma.html#pragma_recursive_triggers) | diff --git a/sqlite3.go b/sqlite3.go index 4b79aac..3855882 100644 --- a/sqlite3.go +++ b/sqlite3.go @@ -838,6 +838,10 @@ func errorString(err Error) string { // This pragma enables or disables the enforcement of CHECK constraints. // The default setting is off, meaning that CHECK constraints are enforced by default. // +// _journal=MODE +// Set journal mode for the databases associated with the current connection. +// https://www.sqlite.org/pragma.html#pragma_journal_mode +// // _recursive_triggers=Boolean | _rt=Boolean // Enable or disable recursive triggers. // @@ -863,6 +867,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) { caseSensitiveLike := -1 deferForeignKeys := -1 ignoreCheckConstraints := -1 + journalMode := "DELETE" foreignKeys := -1 recursiveTriggers := -1 @@ -1022,6 +1027,19 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) { } } + // Journal Mode (_journal) + // + // https://www.sqlite.org/pragma.html#pragma_journal_mode + // + if val := params.Get("_journal"); val != "" { + switch strings.ToUpper(val) { + case "DELETE", "TRUNCATE", "PERSIST", "MEMORY", "WAL", "OFF": + journalMode = strings.ToUpper(val) + default: + return nil, fmt.Errorf("Invalid _journal: %v, expecting value of 'DELETE TRUNCATE PERSIST MEMORY WAL OFF'", val) + } + } + // Recursive Triggers (_recursive_triggers) // // https://www.sqlite.org/pragma.html#pragma_recursive_triggers @@ -1118,6 +1136,13 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) { } } + // Journal Mode + // Because default Journal Mode is DELETE this PRAGMA can always be executed. + if err := exec(fmt.Sprintf("PRAGMA journal_mode = %s;", journalMode)); err != nil { + C.sqlite3_close_v2(db) + return nil, err + } + // Recursive Triggers if recursiveTriggers > -1 { if err := exec(fmt.Sprintf("PRAGMA recursive_triggers = %d;", recursiveTriggers)); err != nil {