0m9 l9 Jg9 9 %9 =9 R9 i9 9 y9 9 T9 9 ,9 9 @ 59 9 9 9 9 9 9 Ц9 9 @#: #: 9 K 9 @ 9 C 9 M 9 L (9 A 9 9 9 D 9 9 9 09 9 9 x p9 )9 9 9 9 :9 9 !
9 O9 tF9 9 9 9 '9 w9 9 ` : 9 19 09 9 $9 9 9 9 9 29 9 C9 C9
P9 _9 ( l9 0 ~9 8 9 @ 9 H 9 P 9 9 9 9 9 9 9 9 9 (
/9 0 >9 #: ` #: 8 9 9 #: #: X "9 b9 9 9 y9 9 k9 q9 V9 s9 9 9 w 9 Q9 9 9 9 9 9 9 9 9 9 9 #9 V9 9 9 9 J9 9 9 9 9 9 !9 !9 )9 !9 !!9 6 9 ;9 W9 &!9 /!9 9!9 G!9 9 n9 #M9 P!9 D9 _9 u9 9 9 X9 n9 S!9 M9 9 9 W!9 09 P9 @9 \!9 9 ,9 ,9 ^9 ,9 ,9 ,9 -9 -9 $-9 B-9 T-9 r-9 ^9 -9 _9 -9 29 -9 X9 %9 9 9 -9 9 9 9 )9 -9 -9 9 9 9 h would make this write a silent no-op.
remove_filter( 'default_option_' . self::PREVENT_REDIRECT_OPTION, '__return_true' );
// The return value also tells us the flag is ours, so a value stored by somebody
// else is never removed on shutdown.
$this->is_redirect_prevented = update_option( self::PREVENT_REDIRECT_OPTION, true );
if ( $this->is_redirect_prevented ) {
// Ownership marker, never autoloaded: it is read only when a plugin is deleted.
update_option( self::OWN_REDIRECT_OPTION, true, false );
}
}
/**
* Record WPForms as the install source when Sugar Calendar Lite is activated.
*
* @since 2.0.1
*
* @param string $plugin_basename Path to the activated plugin file relative to the plugins directory.
*/
public function maybe_record_source( $plugin_basename ) {
if ( ! is_string( $plugin_basename ) || strpos( $plugin_basename, Helper::SLUG . '/' ) !== 0 ) {
return;
}
$this->is_activated = true;
update_option( self::SOURCE_OPTION, 'wpforms' );
}
/**
* Remove the redirect flag when our install never reached activation.
*
* The flag is written before activate_plugin() because Sugar Calendar reads it while
* activating, but the request can still end without activation: a WP_Error from
* activate_plugin(), or a user who may install plugins but not activate them. Leaving
* the flag behind would silently skip the wizard of a later manual activation.
*
* @since 2.0.1
*/
public function maybe_revert_prevent_redirect(): void {
if ( ! $this->is_redirect_prevented || $this->is_activated ) {
return;
}
delete_option( self::PREVENT_REDIRECT_OPTION );
delete_option( self::OWN_REDIRECT_OPTION );
}
/**
* Drop our redirect flag when Sugar Calendar is deleted.
*
* Sugar Calendar has no uninstall routine and treats the option as a permanent opt-out,
* so the flag we wrote for one install would keep suppressing the setup wizard of any
* later manual install. A flag stored by somebody else carries no ownership marker and stays.
*
* @since 2.0.1
*
* @param string $plugin_file Path to the deleted plugin file relative to the plugins directory.
* @param bool $deleted Whether the deletion succeeded.
*/
public function maybe_clean_prevent_redirect( $plugin_file, $deleted = true ): void {
$folder = strtok( (string) $plugin_file, '/' );
if ( ! $deleted || ( $folder !== Helper::SLUG && $folder !== Helper::PRO_SLUG ) ) {
return;
}
if ( ! get_option( self::OWN_REDIRECT_OPTION ) ) {
return;
}
// The hook fires before delete_plugins() clears the plugins cache, and it fires once per
// plugin, so both the cache and the resolved basename are refreshed before looking for a
// remaining copy: Lite can sit next to Pro, which still needs the flag.
wp_clean_plugins_cache( false );
if ( Helper::is_installed( true ) ) {
return;
}
delete_option( self::PREVENT_REDIRECT_OPTION );
delete_option( self::OWN_REDIRECT_OPTION );
}
}
2. September 2026 - fl.zema.de
DE 
EN 
FR