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Commit 764e391

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ADD: PRAGMA query_only
1 parent 9e79299 commit 764e391

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2 files changed

+28
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2 files changed

+28
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‎README.md‎

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@@ -85,6 +85,7 @@ Boolean values can be one of:
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| Locking Mode | `_locking` | <ul><li>NORMAL</li><li>EXCLUSIVE</li></ul> | For more information see [PRAGMA locking_mode](https://www.sqlite.org/pragma.html#pragma_locking_mode) |
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| Mode | `mode` | <ul><li>ro</li><li>rw</li><li>rwc</li><li>memory</li></ul> | Access Mode of the database. For more information see [SQLite Open](https://www.sqlite.org/c3ref/open.html) |
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| Mutex Locking | `_mutex` | <ul><li>no</li><li>full</li></ul> | Specify mutex mode. |
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| Query Only | `_query_only` | `boolean` | For more information see [PRAGMA query_only](https://www.sqlite.org/pragma.html#pragma_query_only) |
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| Recursive Triggers | `_recursive_triggers` \| `_rt` | `boolean` | For more information see [PRAGMA recursive_triggers](https://www.sqlite.org/pragma.html#pragma_recursive_triggers) |
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| Shared-Cache Mode | `cache` | <ul><li>shared</li><li>private</li></ul> | Set cache mode for more information see [sqlite.org](https://www.sqlite.org/sharedcache.html) |
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| Time Zone Location | `_loc` | auto | Specify location of time format. |

‎sqlite3.go‎

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@@ -856,6 +856,9 @@ func errorString(err Error) string {
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// The locking-mode is either NORMAL or EXCLUSIVE.
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// https://www.sqlite.org/pragma.html#pragma_locking_mode
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//
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// _query_only=Boolean
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// The query_only pragma prevents all changes to database files when enabled.
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//
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// _recursive_triggers=Boolean | _rt=Boolean
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// Enable or disable recursive triggers.
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//
@@ -884,6 +887,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
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ignoreCheckConstraints := -1
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journalMode := "DELETE"
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lockingMode := "NORMAL"
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queryOnly := -1
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recursiveTriggers := -1
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pos := strings.IndexRune(dsn, '?')
@@ -1068,6 +1072,21 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
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}
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}
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// Query Only (_query_only)
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//
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// https://www.sqlite.org/pragma.html#pragma_query_only
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//
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if val := params.Get("_query_only"); val != "" {
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switch strings.ToLower(val) {
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case "0", "no", "false", "off":
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queryOnly = 0
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case "1", "yes", "true", "on":
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queryOnly = 1
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default:
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return nil, fmt.Errorf("Invalid _query_only: %v, expecting boolean value of '0 1 false true no yes off on'", val)
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}
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}
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// Recursive Triggers (_recursive_triggers)
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//
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// https://www.sqlite.org/pragma.html#pragma_recursive_triggers
@@ -1179,6 +1198,14 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
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return nil, err
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}
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// Query Only
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if queryOnly > 0 {
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if err := exec(fmt.Sprintf("PRAGMA query_only = %d;", queryOnly)); err != nil {
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C.sqlite3_close_v2(db)
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return nil, err
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}
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}
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// Recursive Triggers
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if recursiveTriggers > -1 {
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if err := exec(fmt.Sprintf("PRAGMA recursive_triggers = %d;", recursiveTriggers)); err != nil {

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