Add an effectively installed to module auth migration

Signed-off-by: Matt Friedman <maf675@gmail.com>

Author: iMattPro

migrations/fix_acp_module_auth.php

@@ -14,6 +14,20 @@
 
 class fix_acp_module_auth extends migration
 {
+	public function effectively_installed()
+	{
+		$sql = 'SELECT module_id
+			FROM ' . $this->table_prefix . "modules
+			WHERE module_class = 'acp'
+				AND module_langname = 'ACP_WEBPUSH_EXT_SETTINGS'
+				AND module_auth = 'ext_phpbb/webpushnotifications && acl_a_server'";
+		$result = $this->db->sql_query($sql);
+		$module_id = $this->db->sql_fetchfield('module_id');
+		$this->db->sql_freeresult($result);
+
+		return $module_id !== false;
+	}
+
 	public static function depends_on()
 	{
 		return ['\phpbb\webpushnotifications\migrations\add_webpush'];
@@ -30,8 +44,8 @@ public function set_acp_module_auth()
 	{
 		$phpbb_modules_table = $this->table_prefix . 'modules';
 		$sql = 'UPDATE ' . $phpbb_modules_table . "
-				SET module_auth = '" . $this->db->sql_escape('ext_phpbb/webpushnotifications && acl_a_server') . "'
-				WHERE module_langname = '" . $this->db->sql_escape('ACP_WEBPUSH_EXT_SETTINGS')  . "'";
+			SET module_auth = '" . $this->db->sql_escape('ext_phpbb/webpushnotifications && acl_a_server') . "'
+			WHERE module_langname = '" . $this->db->sql_escape('ACP_WEBPUSH_EXT_SETTINGS')  . "'";
 		$this->db->sql_query($sql);
 	}
 }