Update Foreign Keys PRAGMA

ADD: Multiple key

Author: gjrtimmer

README.md

@@ -77,7 +77,7 @@ Boolean values can be one of:
 | Auto Vacuum | `_vacuum` | <ul><li>`0` \| `none`</li><li>`1` \| `full`</li><li>`2` \| `incremental`</li></ul> | For more information see [PRAGMA auto_vacuum](https://www.sqlite.org/pragma.html#pragma_auto_vacuum) |
 | Busy Timeout | `_busy_timeout` \| `_timeout` | `int` | Specify value for sqlite3_busy_timeout. For more information see [PRAGMA busy_timeout](https://www.sqlite.org/pragma.html#pragma_busy_timeout) |
 | Case Sensitive LIKE | `_cslike` | `boolean` | For more information see [PRAGMA case_sensitive_like](https://www.sqlite.org/pragma.html#pragma_case_sensitive_like) |
-| Foreign Keys | `_foreign_keys` | `boolean` | For more information see [PRAGMA foreign_keys](https://www.sqlite.org/pragma.html#pragma_foreign_keys) |
+| Foreign Keys | `_foreign_keys` \| `_fk` | `boolean` | For more information see [PRAGMA foreign_keys](https://www.sqlite.org/pragma.html#pragma_foreign_keys) |
 | Mutex Locking | `_mutex` | <ul><li>no</li><li>full</li></ul> | Specify mutex mode. |
 | Recursive Triggers | `_recursive_triggers` | `boolean` | For more information see [PRAGMA recursive_triggers](https://www.sqlite.org/pragma.html#pragma_recursive_triggers) |
 | 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) |

sqlite3.go

@@ -803,14 +803,14 @@ func errorString(err Error) string {
 //     Specify locking behavior for transactions.  XXX can be "immediate",
 //     "deferred", "exclusive".
 //
-//   _busy_timeout=XXX
+//   _busy_timeout=XXX"| _timeout=XXX
 //     Specify value for sqlite3_busy_timeout.
 //
 //   _cslike=Boolean
 //     Default or disabled the LIKE operation is case-insensitive.
 //     When enabling this options behaviour of LIKE will become case-sensitive.
 //
-//   _foreign_keys=Boolean
+//   _foreign_keys=Boolean | _fk=Boolean
 //     Enable or disable enforcement of foreign keys.  X can be 1 or 0.
 //
 //   _recursive_triggers=Boolean
@@ -938,8 +938,13 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 		//
 		// https://www.sqlite.org/pragma.html#pragma_foreign_keys
 		//
-
-		if val := params.Get("_foreign_keys"); val != "" {
+		if _, ok := params["_foreign_keys"]; ok {
+			pkey = "_foreign_keys"
+		}
+		if _, ok := params["_fk"]; ok {
+			pkey = "_fk"
+		}
+		if val := params.Get(pkey); val != "" {
 			switch strings.ToLower(val) {
 			case "0", "no", "false", "off":
 				foreignKeys = 0