eventespresso / event-espresso-core

espresso.php

Indentation +215 added lines, -215 removed lines

@@ -1,5 +1,5 @@ 
 <?php if ( ! defined('ABSPATH')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 /*
   Plugin Name:		Event Espresso
@@ -40,239 +40,239 @@ 
  * @since            4.0
  */
 if (function_exists('espresso_version')) {
-    /**
-     *    espresso_duplicate_plugin_error
-     *    displays if more than one version of EE is activated at the same time
-     */
-    function espresso_duplicate_plugin_error()
-    {
-        ?>
+	/**
+	 *    espresso_duplicate_plugin_error
+	 *    displays if more than one version of EE is activated at the same time
+	 */
+	function espresso_duplicate_plugin_error()
+	{
+		?>
         <div class="error">
             <p>
                 <?php echo esc_html__(
-                        'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
-                        'event_espresso'
-                ); ?>
+						'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
+						'event_espresso'
+				); ?>
             </p>
         </div>
         <?php
-        espresso_deactivate_plugin(plugin_basename(__FILE__));
-    }
+		espresso_deactivate_plugin(plugin_basename(__FILE__));
+	}
 
-    add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
+	add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
 } else {
-    define('EE_MIN_PHP_VER_REQUIRED', '5.3.9');
-    if ( ! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
-        /**
-         * espresso_minimum_php_version_error
-         *
-         * @return void
-         */
-        function espresso_minimum_php_version_error()
-        {
-            ?>
+	define('EE_MIN_PHP_VER_REQUIRED', '5.3.9');
+	if ( ! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
+		/**
+		 * espresso_minimum_php_version_error
+		 *
+		 * @return void
+		 */
+		function espresso_minimum_php_version_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    printf(
-                            esc_html__(
-                                    'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
-                                    'event_espresso'
-                            ),
-                            EE_MIN_PHP_VER_REQUIRED,
-                            PHP_VERSION,
-                            '<br/>',
-                            '<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
-                    );
-                    ?>
+					printf(
+							esc_html__(
+									'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
+									'event_espresso'
+							),
+							EE_MIN_PHP_VER_REQUIRED,
+							PHP_VERSION,
+							'<br/>',
+							'<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
+					);
+					?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
 
-        add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
-    } else {
-        /**
-         * espresso_version
-         * Returns the plugin version
-         *
-         * @return string
-         */
-        function espresso_version()
-        {
-            return apply_filters('FHEE__espresso__espresso_version', '4.9.25.rc.003');
-        }
+		add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
+	} else {
+		/**
+		 * espresso_version
+		 * Returns the plugin version
+		 *
+		 * @return string
+		 */
+		function espresso_version()
+		{
+			return apply_filters('FHEE__espresso__espresso_version', '4.9.25.rc.003');
+		}
 
-        // define versions
-        define('EVENT_ESPRESSO_VERSION', espresso_version());
-        define('EE_MIN_WP_VER_REQUIRED', '4.1');
-        define('EE_MIN_WP_VER_RECOMMENDED', '4.4.2');
-        define('EE_MIN_PHP_VER_RECOMMENDED', '5.4.44');
-        define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
-        //used to be DIRECTORY_SEPARATOR, but that caused issues on windows
-        if ( ! defined('DS')) {
-            define('DS', '/');
-        }
-        if ( ! defined('PS')) {
-            define('PS', PATH_SEPARATOR);
-        }
-        if ( ! defined('SP')) {
-            define('SP', ' ');
-        }
-        if ( ! defined('EENL')) {
-            define('EENL', "\n");
-        }
-        define('EE_SUPPORT_EMAIL', 'support@eventespresso.com');
-        // define the plugin directory and URL
-        define('EE_PLUGIN_BASENAME', plugin_basename(EVENT_ESPRESSO_MAIN_FILE));
-        define('EE_PLUGIN_DIR_PATH', plugin_dir_path(EVENT_ESPRESSO_MAIN_FILE));
-        define('EE_PLUGIN_DIR_URL', plugin_dir_url(EVENT_ESPRESSO_MAIN_FILE));
-        // main root folder paths
-        define('EE_ADMIN_PAGES', EE_PLUGIN_DIR_PATH . 'admin_pages' . DS);
-        define('EE_CORE', EE_PLUGIN_DIR_PATH . 'core' . DS);
-        define('EE_MODULES', EE_PLUGIN_DIR_PATH . 'modules' . DS);
-        define('EE_PUBLIC', EE_PLUGIN_DIR_PATH . 'public' . DS);
-        define('EE_SHORTCODES', EE_PLUGIN_DIR_PATH . 'shortcodes' . DS);
-        define('EE_WIDGETS', EE_PLUGIN_DIR_PATH . 'widgets' . DS);
-        define('EE_PAYMENT_METHODS', EE_PLUGIN_DIR_PATH . 'payment_methods' . DS);
-        define('EE_CAFF_PATH', EE_PLUGIN_DIR_PATH . 'caffeinated' . DS);
-        // core system paths
-        define('EE_ADMIN', EE_CORE . 'admin' . DS);
-        define('EE_CPTS', EE_CORE . 'CPTs' . DS);
-        define('EE_CLASSES', EE_CORE . 'db_classes' . DS);
-        define('EE_INTERFACES', EE_CORE . 'interfaces' . DS);
-        define('EE_BUSINESS', EE_CORE . 'business' . DS);
-        define('EE_MODELS', EE_CORE . 'db_models' . DS);
-        define('EE_HELPERS', EE_CORE . 'helpers' . DS);
-        define('EE_LIBRARIES', EE_CORE . 'libraries' . DS);
-        define('EE_TEMPLATES', EE_CORE . 'templates' . DS);
-        define('EE_THIRD_PARTY', EE_CORE . 'third_party_libs' . DS);
-        define('EE_GLOBAL_ASSETS', EE_TEMPLATES . 'global_assets' . DS);
-        define('EE_FORM_SECTIONS', EE_LIBRARIES . 'form_sections' . DS);
-        // gateways
-        define('EE_GATEWAYS', EE_MODULES . 'gateways' . DS);
-        define('EE_GATEWAYS_URL', EE_PLUGIN_DIR_URL . 'modules' . DS . 'gateways' . DS);
-        // asset URL paths
-        define('EE_TEMPLATES_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'templates' . DS);
-        define('EE_GLOBAL_ASSETS_URL', EE_TEMPLATES_URL . 'global_assets' . DS);
-        define('EE_IMAGES_URL', EE_GLOBAL_ASSETS_URL . 'images' . DS);
-        define('EE_THIRD_PARTY_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'third_party_libs' . DS);
-        define('EE_HELPERS_ASSETS', EE_PLUGIN_DIR_URL . 'core/helpers/assets/');
-        define('EE_LIBRARIES_URL', EE_PLUGIN_DIR_URL . 'core/libraries/');
-        // define upload paths
-        $uploads = wp_upload_dir();
-        // define the uploads directory and URL
-        define('EVENT_ESPRESSO_UPLOAD_DIR', $uploads['basedir'] . DS . 'espresso' . DS);
-        define('EVENT_ESPRESSO_UPLOAD_URL', $uploads['baseurl'] . DS . 'espresso' . DS);
-        // define the templates directory and URL
-        define('EVENT_ESPRESSO_TEMPLATE_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'templates' . DS);
-        define('EVENT_ESPRESSO_TEMPLATE_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'templates' . DS);
-        // define the gateway directory and URL
-        define('EVENT_ESPRESSO_GATEWAY_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'gateways' . DS);
-        define('EVENT_ESPRESSO_GATEWAY_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'gateways' . DS);
-        // languages folder/path
-        define('EE_LANGUAGES_SAFE_LOC', '..' . DS . 'uploads' . DS . 'espresso' . DS . 'languages' . DS);
-        define('EE_LANGUAGES_SAFE_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'languages' . DS);
-        //check for dompdf fonts in uploads
-        if (file_exists(EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS)) {
-            define('DOMPDF_FONT_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS);
-        }
-        //ajax constants
-        define(
-                'EE_FRONT_AJAX',
-                isset($_REQUEST['ee_front_ajax']) || isset($_REQUEST['data']['ee_front_ajax']) ? true : false
-        );
-        define(
-                'EE_ADMIN_AJAX',
-                isset($_REQUEST['ee_admin_ajax']) || isset($_REQUEST['data']['ee_admin_ajax']) ? true : false
-        );
-        //just a handy constant occasionally needed for finding values representing infinity in the DB
-        //you're better to use this than its straight value (currently -1) in case you ever
-        //want to change its default value! or find when -1 means infinity
-        define('EE_INF_IN_DB', -1);
-        define('EE_INF', INF > (float)PHP_INT_MAX ? INF : PHP_INT_MAX);
-        define('EE_DEBUG', false);
-        /**
-         *    espresso_plugin_activation
-         *    adds a wp-option to indicate that EE has been activated via the WP admin plugins page
-         */
-        function espresso_plugin_activation()
-        {
-            update_option('ee_espresso_activation', true);
-        }
+		// define versions
+		define('EVENT_ESPRESSO_VERSION', espresso_version());
+		define('EE_MIN_WP_VER_REQUIRED', '4.1');
+		define('EE_MIN_WP_VER_RECOMMENDED', '4.4.2');
+		define('EE_MIN_PHP_VER_RECOMMENDED', '5.4.44');
+		define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
+		//used to be DIRECTORY_SEPARATOR, but that caused issues on windows
+		if ( ! defined('DS')) {
+			define('DS', '/');
+		}
+		if ( ! defined('PS')) {
+			define('PS', PATH_SEPARATOR);
+		}
+		if ( ! defined('SP')) {
+			define('SP', ' ');
+		}
+		if ( ! defined('EENL')) {
+			define('EENL', "\n");
+		}
+		define('EE_SUPPORT_EMAIL', 'support@eventespresso.com');
+		// define the plugin directory and URL
+		define('EE_PLUGIN_BASENAME', plugin_basename(EVENT_ESPRESSO_MAIN_FILE));
+		define('EE_PLUGIN_DIR_PATH', plugin_dir_path(EVENT_ESPRESSO_MAIN_FILE));
+		define('EE_PLUGIN_DIR_URL', plugin_dir_url(EVENT_ESPRESSO_MAIN_FILE));
+		// main root folder paths
+		define('EE_ADMIN_PAGES', EE_PLUGIN_DIR_PATH . 'admin_pages' . DS);
+		define('EE_CORE', EE_PLUGIN_DIR_PATH . 'core' . DS);
+		define('EE_MODULES', EE_PLUGIN_DIR_PATH . 'modules' . DS);
+		define('EE_PUBLIC', EE_PLUGIN_DIR_PATH . 'public' . DS);
+		define('EE_SHORTCODES', EE_PLUGIN_DIR_PATH . 'shortcodes' . DS);
+		define('EE_WIDGETS', EE_PLUGIN_DIR_PATH . 'widgets' . DS);
+		define('EE_PAYMENT_METHODS', EE_PLUGIN_DIR_PATH . 'payment_methods' . DS);
+		define('EE_CAFF_PATH', EE_PLUGIN_DIR_PATH . 'caffeinated' . DS);
+		// core system paths
+		define('EE_ADMIN', EE_CORE . 'admin' . DS);
+		define('EE_CPTS', EE_CORE . 'CPTs' . DS);
+		define('EE_CLASSES', EE_CORE . 'db_classes' . DS);
+		define('EE_INTERFACES', EE_CORE . 'interfaces' . DS);
+		define('EE_BUSINESS', EE_CORE . 'business' . DS);
+		define('EE_MODELS', EE_CORE . 'db_models' . DS);
+		define('EE_HELPERS', EE_CORE . 'helpers' . DS);
+		define('EE_LIBRARIES', EE_CORE . 'libraries' . DS);
+		define('EE_TEMPLATES', EE_CORE . 'templates' . DS);
+		define('EE_THIRD_PARTY', EE_CORE . 'third_party_libs' . DS);
+		define('EE_GLOBAL_ASSETS', EE_TEMPLATES . 'global_assets' . DS);
+		define('EE_FORM_SECTIONS', EE_LIBRARIES . 'form_sections' . DS);
+		// gateways
+		define('EE_GATEWAYS', EE_MODULES . 'gateways' . DS);
+		define('EE_GATEWAYS_URL', EE_PLUGIN_DIR_URL . 'modules' . DS . 'gateways' . DS);
+		// asset URL paths
+		define('EE_TEMPLATES_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'templates' . DS);
+		define('EE_GLOBAL_ASSETS_URL', EE_TEMPLATES_URL . 'global_assets' . DS);
+		define('EE_IMAGES_URL', EE_GLOBAL_ASSETS_URL . 'images' . DS);
+		define('EE_THIRD_PARTY_URL', EE_PLUGIN_DIR_URL . 'core' . DS . 'third_party_libs' . DS);
+		define('EE_HELPERS_ASSETS', EE_PLUGIN_DIR_URL . 'core/helpers/assets/');
+		define('EE_LIBRARIES_URL', EE_PLUGIN_DIR_URL . 'core/libraries/');
+		// define upload paths
+		$uploads = wp_upload_dir();
+		// define the uploads directory and URL
+		define('EVENT_ESPRESSO_UPLOAD_DIR', $uploads['basedir'] . DS . 'espresso' . DS);
+		define('EVENT_ESPRESSO_UPLOAD_URL', $uploads['baseurl'] . DS . 'espresso' . DS);
+		// define the templates directory and URL
+		define('EVENT_ESPRESSO_TEMPLATE_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'templates' . DS);
+		define('EVENT_ESPRESSO_TEMPLATE_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'templates' . DS);
+		// define the gateway directory and URL
+		define('EVENT_ESPRESSO_GATEWAY_DIR', $uploads['basedir'] . DS . 'espresso' . DS . 'gateways' . DS);
+		define('EVENT_ESPRESSO_GATEWAY_URL', $uploads['baseurl'] . DS . 'espresso' . DS . 'gateways' . DS);
+		// languages folder/path
+		define('EE_LANGUAGES_SAFE_LOC', '..' . DS . 'uploads' . DS . 'espresso' . DS . 'languages' . DS);
+		define('EE_LANGUAGES_SAFE_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'languages' . DS);
+		//check for dompdf fonts in uploads
+		if (file_exists(EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS)) {
+			define('DOMPDF_FONT_DIR', EVENT_ESPRESSO_UPLOAD_DIR . 'fonts' . DS);
+		}
+		//ajax constants
+		define(
+				'EE_FRONT_AJAX',
+				isset($_REQUEST['ee_front_ajax']) || isset($_REQUEST['data']['ee_front_ajax']) ? true : false
+		);
+		define(
+				'EE_ADMIN_AJAX',
+				isset($_REQUEST['ee_admin_ajax']) || isset($_REQUEST['data']['ee_admin_ajax']) ? true : false
+		);
+		//just a handy constant occasionally needed for finding values representing infinity in the DB
+		//you're better to use this than its straight value (currently -1) in case you ever
+		//want to change its default value! or find when -1 means infinity
+		define('EE_INF_IN_DB', -1);
+		define('EE_INF', INF > (float)PHP_INT_MAX ? INF : PHP_INT_MAX);
+		define('EE_DEBUG', false);
+		/**
+		 *    espresso_plugin_activation
+		 *    adds a wp-option to indicate that EE has been activated via the WP admin plugins page
+		 */
+		function espresso_plugin_activation()
+		{
+			update_option('ee_espresso_activation', true);
+		}
 
-        register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
-        /**
-         *    espresso_load_error_handling
-         *    this function loads EE's class for handling exceptions and errors
-         */
-        function espresso_load_error_handling()
-        {
-            // load debugging tools
-            if (WP_DEBUG === true && is_readable(EE_HELPERS . 'EEH_Debug_Tools.helper.php')) {
-                require_once(EE_HELPERS . 'EEH_Debug_Tools.helper.php');
-                EEH_Debug_Tools::instance();
-            }
-            // load error handling
-            if (is_readable(EE_CORE . 'EE_Error.core.php')) {
-                require_once(EE_CORE . 'EE_Error.core.php');
-            } else {
-                wp_die(esc_html__('The EE_Error core class could not be loaded.', 'event_espresso'));
-            }
-        }
+		register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
+		/**
+		 *    espresso_load_error_handling
+		 *    this function loads EE's class for handling exceptions and errors
+		 */
+		function espresso_load_error_handling()
+		{
+			// load debugging tools
+			if (WP_DEBUG === true && is_readable(EE_HELPERS . 'EEH_Debug_Tools.helper.php')) {
+				require_once(EE_HELPERS . 'EEH_Debug_Tools.helper.php');
+				EEH_Debug_Tools::instance();
+			}
+			// load error handling
+			if (is_readable(EE_CORE . 'EE_Error.core.php')) {
+				require_once(EE_CORE . 'EE_Error.core.php');
+			} else {
+				wp_die(esc_html__('The EE_Error core class could not be loaded.', 'event_espresso'));
+			}
+		}
 
-        /**
-         *    espresso_load_required
-         *    given a class name and path, this function will load that file or throw an exception
-         *
-         * @param    string $classname
-         * @param    string $full_path_to_file
-         * @throws    EE_Error
-         */
-        function espresso_load_required($classname, $full_path_to_file)
-        {
-            static $error_handling_loaded = false;
-            if ( ! $error_handling_loaded) {
-                espresso_load_error_handling();
-                $error_handling_loaded = true;
-            }
-            if (is_readable($full_path_to_file)) {
-                require_once($full_path_to_file);
-            } else {
-                throw new EE_Error (
-                        sprintf(
-                                esc_html__(
-                                        'The %s class file could not be located or is not readable due to file permissions.',
-                                        'event_espresso'
-                                ),
-                                $classname
-                        )
-                );
-            }
-        }
+		/**
+		 *    espresso_load_required
+		 *    given a class name and path, this function will load that file or throw an exception
+		 *
+		 * @param    string $classname
+		 * @param    string $full_path_to_file
+		 * @throws    EE_Error
+		 */
+		function espresso_load_required($classname, $full_path_to_file)
+		{
+			static $error_handling_loaded = false;
+			if ( ! $error_handling_loaded) {
+				espresso_load_error_handling();
+				$error_handling_loaded = true;
+			}
+			if (is_readable($full_path_to_file)) {
+				require_once($full_path_to_file);
+			} else {
+				throw new EE_Error (
+						sprintf(
+								esc_html__(
+										'The %s class file could not be located or is not readable due to file permissions.',
+										'event_espresso'
+								),
+								$classname
+						)
+				);
+			}
+		}
 
-        espresso_load_required('EEH_Base', EE_CORE . 'helpers' . DS . 'EEH_Base.helper.php');
-        espresso_load_required('EEH_File', EE_CORE . 'helpers' . DS . 'EEH_File.helper.php');
-        espresso_load_required('EE_Bootstrap', EE_CORE . 'EE_Bootstrap.core.php');
-        new EE_Bootstrap();
-    }
+		espresso_load_required('EEH_Base', EE_CORE . 'helpers' . DS . 'EEH_Base.helper.php');
+		espresso_load_required('EEH_File', EE_CORE . 'helpers' . DS . 'EEH_File.helper.php');
+		espresso_load_required('EE_Bootstrap', EE_CORE . 'EE_Bootstrap.core.php');
+		new EE_Bootstrap();
+	}
 }
 if ( ! function_exists('espresso_deactivate_plugin')) {
-    /**
-     *    deactivate_plugin
-     * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
-     *
-     * @access public
-     * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
-     * @return    void
-     */
-    function espresso_deactivate_plugin($plugin_basename = '')
-    {
-        if ( ! function_exists('deactivate_plugins')) {
-            require_once(ABSPATH . 'wp-admin/includes/plugin.php');
-        }
-        unset($_GET['activate'], $_REQUEST['activate']);
-        deactivate_plugins($plugin_basename);
-    }
+	/**
+	 *    deactivate_plugin
+	 * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
+	 *
+	 * @access public
+	 * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
+	 * @return    void
+	 */
+	function espresso_deactivate_plugin($plugin_basename = '')
+	{
+		if ( ! function_exists('deactivate_plugins')) {
+			require_once(ABSPATH . 'wp-admin/includes/plugin.php');
+		}
+		unset($_GET['activate'], $_REQUEST['activate']);
+		deactivate_plugins($plugin_basename);
+	}
 }

core/libraries/plugin_api/EE_Register_Addon.lib.php

Indentation +620 added lines, -620 removed lines

@@ -48,7 +48,7 @@ 
 	protected static $_incompatible_addons = array(
 		'Multi_Event_Registration' => '2.0.11.rc.002',
 		'Promotions' => '1.0.0.rc.084',
-    );
+	);
 
 
 
@@ -219,655 +219,655 @@ 
 	 */
 	public static function register( $addon_name = '', $setup_args = array() ) {
 		// required fields MUST be present, so let's make sure they are.
-        \EE_Register_Addon::_verify_parameters($addon_name, $setup_args);
-        // get class name for addon
+		\EE_Register_Addon::_verify_parameters($addon_name, $setup_args);
+		// get class name for addon
 		$class_name = \EE_Register_Addon::_parse_class_name($addon_name, $setup_args);
 		//setup $_settings array from incoming values.
-        $addon_settings = \EE_Register_Addon::_get_addon_settings($class_name, $setup_args);
-        // setup PUE
-        \EE_Register_Addon::_parse_pue_options($addon_name, $class_name, $setup_args);
-        // does this addon work with this version of core or WordPress ?
-        if ( ! \EE_Register_Addon::_addon_is_compatible($addon_name, $addon_settings) ) {
-            return;
+		$addon_settings = \EE_Register_Addon::_get_addon_settings($class_name, $setup_args);
+		// setup PUE
+		\EE_Register_Addon::_parse_pue_options($addon_name, $class_name, $setup_args);
+		// does this addon work with this version of core or WordPress ?
+		if ( ! \EE_Register_Addon::_addon_is_compatible($addon_name, $addon_settings) ) {
+			return;
 		}
 		// register namespaces
-        \EE_Register_Addon::_setup_namespaces($addon_settings);
-        // check if this is an activation request
-        if ( \EE_Register_Addon::_addon_activation($addon_name, $addon_settings)) {
-            // dont bother setting up the rest of the addon atm
-            return;
-        }
+		\EE_Register_Addon::_setup_namespaces($addon_settings);
+		// check if this is an activation request
+		if ( \EE_Register_Addon::_addon_activation($addon_name, $addon_settings)) {
+			// dont bother setting up the rest of the addon atm
+			return;
+		}
 		// we need cars
-        \EE_Register_Addon::_setup_autoloaders($addon_name);
-        // register new models and extensions
-        \EE_Register_Addon::_register_models_and_extensions($addon_name);
-        // setup DMS
-        \EE_Register_Addon::_register_data_migration_scripts($addon_name);
-        // if config_class is present let's register config.
-        \EE_Register_Addon::_register_config($addon_name);
-        // register admin pages
-        \EE_Register_Addon::_register_admin_pages($addon_name);
-        // add to list of modules to be registered
-        \EE_Register_Addon::_register_modules($addon_name);
-        // add to list of shortcodes to be registered
-        \EE_Register_Addon::_register_shortcodes($addon_name);
-        // add to list of widgets to be registered
-        \EE_Register_Addon::_register_widgets($addon_name);
-        // register capability related stuff.
-        \EE_Register_Addon::_register_capabilities($addon_name);
-        // any message type to register?
-        \EE_Register_Addon::_register_message_types($addon_name);
+		\EE_Register_Addon::_setup_autoloaders($addon_name);
+		// register new models and extensions
+		\EE_Register_Addon::_register_models_and_extensions($addon_name);
+		// setup DMS
+		\EE_Register_Addon::_register_data_migration_scripts($addon_name);
+		// if config_class is present let's register config.
+		\EE_Register_Addon::_register_config($addon_name);
+		// register admin pages
+		\EE_Register_Addon::_register_admin_pages($addon_name);
+		// add to list of modules to be registered
+		\EE_Register_Addon::_register_modules($addon_name);
+		// add to list of shortcodes to be registered
+		\EE_Register_Addon::_register_shortcodes($addon_name);
+		// add to list of widgets to be registered
+		\EE_Register_Addon::_register_widgets($addon_name);
+		// register capability related stuff.
+		\EE_Register_Addon::_register_capabilities($addon_name);
+		// any message type to register?
+		\EE_Register_Addon::_register_message_types($addon_name);
 		// any custom post type/ custom capabilities or default terms to register
-        \EE_Register_Addon::_register_custom_post_types($addon_name);
-        // and any payment methods
-        \EE_Register_Addon::_register_payment_methods($addon_name);
+		\EE_Register_Addon::_register_custom_post_types($addon_name);
+		// and any payment methods
+		\EE_Register_Addon::_register_payment_methods($addon_name);
 		// load and instantiate main addon class
 		\EE_Register_Addon::_load_and_init_addon_class($addon_name);
 	}
 
 
 
-    /**
-     * @param string $addon_name
-     * @param array  $setup_args
-     * @return void
-     * @throws \EE_Error
-     */
-    private static function _verify_parameters($addon_name, array $setup_args)
-    {
-        // required fields MUST be present, so let's make sure they are.
-        if (empty($addon_name) || ! is_array($setup_args)) {
-            throw new EE_Error(
-                __(
-                    'In order to register an EE_Addon with EE_Register_Addon::register(), you must include the "addon_name" (the name of the addon), and an array of arguments.',
-                    'event_espresso'
-                )
-            );
-        }
-        if ( ! isset($setup_args['main_file_path']) || empty($setup_args['main_file_path'])) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'When registering an addon, you didn\'t provide the "main_file_path", which is the full path to the main file loaded directly by Wordpress. You only provided %s',
-                        'event_espresso'
-                    ),
-                    implode(',', array_keys($setup_args))
-                )
-            );
-        }
-        // check that addon has not already been registered with that name
-        if (isset(self::$_settings[$addon_name]) && ! did_action('activate_plugin')) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        'An EE_Addon with the name "%s" has already been registered and each EE_Addon requires a unique name.',
-                        'event_espresso'
-                    ),
-                    $addon_name
-                )
-            );
-        }
+	/**
+	 * @param string $addon_name
+	 * @param array  $setup_args
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private static function _verify_parameters($addon_name, array $setup_args)
+	{
+		// required fields MUST be present, so let's make sure they are.
+		if (empty($addon_name) || ! is_array($setup_args)) {
+			throw new EE_Error(
+				__(
+					'In order to register an EE_Addon with EE_Register_Addon::register(), you must include the "addon_name" (the name of the addon), and an array of arguments.',
+					'event_espresso'
+				)
+			);
+		}
+		if ( ! isset($setup_args['main_file_path']) || empty($setup_args['main_file_path'])) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'When registering an addon, you didn\'t provide the "main_file_path", which is the full path to the main file loaded directly by Wordpress. You only provided %s',
+						'event_espresso'
+					),
+					implode(',', array_keys($setup_args))
+				)
+			);
+		}
+		// check that addon has not already been registered with that name
+		if (isset(self::$_settings[$addon_name]) && ! did_action('activate_plugin')) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'An EE_Addon with the name "%s" has already been registered and each EE_Addon requires a unique name.',
+						'event_espresso'
+					),
+					$addon_name
+				)
+			);
+		}
 	}
 
 
 
-    /**
-     * @param string $addon_name
-     * @param array  $setup_args
-     * @return string
-     */
-    private static function _parse_class_name($addon_name, array $setup_args)
-    {
-        if (empty($setup_args['class_name'])) {
-            // generate one by first separating name with spaces
-            $class_name = str_replace(array('-', '_'), ' ', trim($addon_name));
-            //capitalize, then replace spaces with underscores
-            $class_name = str_replace(' ', '_', ucwords($class_name));
-        } else {
-            $class_name = $setup_args['class_name'];
-        }
-        return strpos($class_name, 'EE_') === 0 ? $class_name : 'EE_' . $class_name;
-    }
-
-
-
-    /**
-     * @param string $class_name
-     * @param array  $setup_args
-     * @return array
-     */
-    private static function _get_addon_settings($class_name, array $setup_args)
-    {
-        //setup $_settings array from incoming values.
-        $addon_settings = array(
-            // generated from the addon name, changes something like "calendar" to "EE_Calendar"
-            'class_name'            => $class_name,
-            // the addon slug for use in URLs, etc
-            'plugin_slug'           => isset($setup_args['plugin_slug'])
-                ? (string)$setup_args['plugin_slug']
-                : '',
-            // page slug to be used when generating the "Settings" link on the WP plugin page
-            'plugin_action_slug'    => isset($setup_args['plugin_action_slug'])
-                ? (string)$setup_args['plugin_action_slug']
-                : '',
-            // the "software" version for the addon
-            'version'               => isset($setup_args['version'])
-                ? (string)$setup_args['version']
-                : '',
-            // the minimum version of EE Core that the addon will work with
-            'min_core_version'      => isset($setup_args['min_core_version'])
-                ? (string)$setup_args['min_core_version']
-                : '',
-            // the minimum version of WordPress that the addon will work with
-            'min_wp_version'        => isset($setup_args['min_wp_version'])
-                ? (string)$setup_args['min_wp_version']
-                : EE_MIN_WP_VER_REQUIRED,
-            // full server path to main file (file loaded directly by WP)
-            'main_file_path'        => isset($setup_args['main_file_path'])
-                ? (string)$setup_args['main_file_path']
-                : '',
-            // path to folder containing files for integrating with the EE core admin and/or setting up EE admin pages
-            'admin_path'            => isset($setup_args['admin_path'])
-                ? (string)$setup_args['admin_path'] : '',
-            // a method to be called when the EE Admin is first invoked, can be used for hooking into any admin page
-            'admin_callback'        => isset($setup_args['admin_callback'])
-                ? (string)$setup_args['admin_callback']
-                : '',
-            // the section name for this addon's configuration settings section (defaults to "addons")
-            'config_section'        => isset($setup_args['config_section'])
-                ? (string)$setup_args['config_section']
-                : 'addons',
-            // the class name for this addon's configuration settings object
-            'config_class'          => isset($setup_args['config_class'])
-                ? (string)$setup_args['config_class'] : '',
-            //the name given to the config for this addons' configuration settings object (optional)
-            'config_name'           => isset($setup_args['config_name'])
-                ? (string)$setup_args['config_name'] : '',
-            // an array of "class names" => "full server paths" for any classes that might be invoked by the addon
-            'autoloader_paths'      => isset($setup_args['autoloader_paths'])
-                ? (array)$setup_args['autoloader_paths']
-                : array(),
-            // an array of  "full server paths" for any folders containing classes that might be invoked by the addon
-            'autoloader_folders'    => isset($setup_args['autoloader_folders'])
-                ? (array)$setup_args['autoloader_folders']
-                : array(),
-            // array of full server paths to any EE_DMS data migration scripts used by the addon
-            'dms_paths'             => isset($setup_args['dms_paths'])
-                ? (array)$setup_args['dms_paths']
-                : array(),
-            // array of full server paths to any EED_Modules used by the addon
-            'module_paths'          => isset($setup_args['module_paths'])
-                ? (array)$setup_args['module_paths']
-                : array(),
-            // array of full server paths to any EES_Shortcodes used by the addon
-            'shortcode_paths'       => isset($setup_args['shortcode_paths'])
-                ? (array)$setup_args['shortcode_paths']
-                : array(),
-            // array of full server paths to any WP_Widgets used by the addon
-            'widget_paths'          => isset($setup_args['widget_paths'])
-                ? (array)$setup_args['widget_paths']
-                : array(),
-            // array of PUE options used by the addon
-            'pue_options'           => isset($setup_args['pue_options'])
-                ? (array)$setup_args['pue_options']
-                : array(),
-            'message_types'         => isset($setup_args['message_types'])
-                ? (array)$setup_args['message_types']
-                : array(),
-            'capabilities'          => isset($setup_args['capabilities'])
-                ? (array)$setup_args['capabilities']
-                : array(),
-            'capability_maps'       => isset($setup_args['capability_maps'])
-                ? (array)$setup_args['capability_maps']
-                : array(),
-            'model_paths'           => isset($setup_args['model_paths'])
-                ? (array)$setup_args['model_paths']
-                : array(),
-            'class_paths'           => isset($setup_args['class_paths'])
-                ? (array)$setup_args['class_paths']
-                : array(),
-            'model_extension_paths' => isset($setup_args['model_extension_paths'])
-                ? (array)$setup_args['model_extension_paths']
-                : array(),
-            'class_extension_paths' => isset($setup_args['class_extension_paths'])
-                ? (array)$setup_args['class_extension_paths']
-                : array(),
-            'custom_post_types'     => isset($setup_args['custom_post_types'])
-                ? (array)$setup_args['custom_post_types']
-                : array(),
-            'custom_taxonomies'     => isset($setup_args['custom_taxonomies'])
-                ? (array)$setup_args['custom_taxonomies']
-                : array(),
-            'payment_method_paths'  => isset($setup_args['payment_method_paths'])
-                ? (array)$setup_args['payment_method_paths']
-                : array(),
-            'default_terms'         => isset($setup_args['default_terms'])
-                ? (array)$setup_args['default_terms']
-                : array(),
-            // if not empty, inserts a new table row after this plugin's row on the WP Plugins page
-            // that can be used for adding upgrading/marketing info
-            'plugins_page_row'      => isset($setup_args['plugins_page_row'])
-                ? $setup_args['plugins_page_row']
-                : '',
-            'namespace'             => isset(
-                $setup_args['namespace'],
-                $setup_args['namespace']['FQNS'],
-                $setup_args['namespace']['DIR']
-            )
-                ? (array)$setup_args['namespace']
-                : array(),
-        );
-        // if plugin_action_slug is NOT set, but an admin page path IS set,
-        // then let's just use the plugin_slug since that will be used for linking to the admin page
-        $addon_settings['plugin_action_slug'] = empty($addon_settings['plugin_action_slug'])
-                                                && ! empty($addon_settings['admin_path'])
-            ? $addon_settings['plugin_slug']
-            : $addon_settings['plugin_action_slug'];
-        // full server path to main file (file loaded directly by WP)
-        $addon_settings['plugin_basename'] = plugin_basename($addon_settings['main_file_path']);
-        return $addon_settings;
+	/**
+	 * @param string $addon_name
+	 * @param array  $setup_args
+	 * @return string
+	 */
+	private static function _parse_class_name($addon_name, array $setup_args)
+	{
+		if (empty($setup_args['class_name'])) {
+			// generate one by first separating name with spaces
+			$class_name = str_replace(array('-', '_'), ' ', trim($addon_name));
+			//capitalize, then replace spaces with underscores
+			$class_name = str_replace(' ', '_', ucwords($class_name));
+		} else {
+			$class_name = $setup_args['class_name'];
+		}
+		return strpos($class_name, 'EE_') === 0 ? $class_name : 'EE_' . $class_name;
 	}
 
 
 
-    /**
-     * @param string $addon_name
-     * @param array  $addon_settings
-     * @return boolean
-     */
+	/**
+	 * @param string $class_name
+	 * @param array  $setup_args
+	 * @return array
+	 */
+	private static function _get_addon_settings($class_name, array $setup_args)
+	{
+		//setup $_settings array from incoming values.
+		$addon_settings = array(
+			// generated from the addon name, changes something like "calendar" to "EE_Calendar"
+			'class_name'            => $class_name,
+			// the addon slug for use in URLs, etc
+			'plugin_slug'           => isset($setup_args['plugin_slug'])
+				? (string)$setup_args['plugin_slug']
+				: '',
+			// page slug to be used when generating the "Settings" link on the WP plugin page
+			'plugin_action_slug'    => isset($setup_args['plugin_action_slug'])
+				? (string)$setup_args['plugin_action_slug']
+				: '',
+			// the "software" version for the addon
+			'version'               => isset($setup_args['version'])
+				? (string)$setup_args['version']
+				: '',
+			// the minimum version of EE Core that the addon will work with
+			'min_core_version'      => isset($setup_args['min_core_version'])
+				? (string)$setup_args['min_core_version']
+				: '',
+			// the minimum version of WordPress that the addon will work with
+			'min_wp_version'        => isset($setup_args['min_wp_version'])
+				? (string)$setup_args['min_wp_version']
+				: EE_MIN_WP_VER_REQUIRED,
+			// full server path to main file (file loaded directly by WP)
+			'main_file_path'        => isset($setup_args['main_file_path'])
+				? (string)$setup_args['main_file_path']
+				: '',
+			// path to folder containing files for integrating with the EE core admin and/or setting up EE admin pages
+			'admin_path'            => isset($setup_args['admin_path'])
+				? (string)$setup_args['admin_path'] : '',
+			// a method to be called when the EE Admin is first invoked, can be used for hooking into any admin page
+			'admin_callback'        => isset($setup_args['admin_callback'])
+				? (string)$setup_args['admin_callback']
+				: '',
+			// the section name for this addon's configuration settings section (defaults to "addons")
+			'config_section'        => isset($setup_args['config_section'])
+				? (string)$setup_args['config_section']
+				: 'addons',
+			// the class name for this addon's configuration settings object
+			'config_class'          => isset($setup_args['config_class'])
+				? (string)$setup_args['config_class'] : '',
+			//the name given to the config for this addons' configuration settings object (optional)
+			'config_name'           => isset($setup_args['config_name'])
+				? (string)$setup_args['config_name'] : '',
+			// an array of "class names" => "full server paths" for any classes that might be invoked by the addon
+			'autoloader_paths'      => isset($setup_args['autoloader_paths'])
+				? (array)$setup_args['autoloader_paths']
+				: array(),
+			// an array of  "full server paths" for any folders containing classes that might be invoked by the addon
+			'autoloader_folders'    => isset($setup_args['autoloader_folders'])
+				? (array)$setup_args['autoloader_folders']
+				: array(),
+			// array of full server paths to any EE_DMS data migration scripts used by the addon
+			'dms_paths'             => isset($setup_args['dms_paths'])
+				? (array)$setup_args['dms_paths']
+				: array(),
+			// array of full server paths to any EED_Modules used by the addon
+			'module_paths'          => isset($setup_args['module_paths'])
+				? (array)$setup_args['module_paths']
+				: array(),
+			// array of full server paths to any EES_Shortcodes used by the addon
+			'shortcode_paths'       => isset($setup_args['shortcode_paths'])
+				? (array)$setup_args['shortcode_paths']
+				: array(),
+			// array of full server paths to any WP_Widgets used by the addon
+			'widget_paths'          => isset($setup_args['widget_paths'])
+				? (array)$setup_args['widget_paths']
+				: array(),
+			// array of PUE options used by the addon
+			'pue_options'           => isset($setup_args['pue_options'])
+				? (array)$setup_args['pue_options']
+				: array(),
+			'message_types'         => isset($setup_args['message_types'])
+				? (array)$setup_args['message_types']
+				: array(),
+			'capabilities'          => isset($setup_args['capabilities'])
+				? (array)$setup_args['capabilities']
+				: array(),
+			'capability_maps'       => isset($setup_args['capability_maps'])
+				? (array)$setup_args['capability_maps']
+				: array(),
+			'model_paths'           => isset($setup_args['model_paths'])
+				? (array)$setup_args['model_paths']
+				: array(),
+			'class_paths'           => isset($setup_args['class_paths'])
+				? (array)$setup_args['class_paths']
+				: array(),
+			'model_extension_paths' => isset($setup_args['model_extension_paths'])
+				? (array)$setup_args['model_extension_paths']
+				: array(),
+			'class_extension_paths' => isset($setup_args['class_extension_paths'])
+				? (array)$setup_args['class_extension_paths']
+				: array(),
+			'custom_post_types'     => isset($setup_args['custom_post_types'])
+				? (array)$setup_args['custom_post_types']
+				: array(),
+			'custom_taxonomies'     => isset($setup_args['custom_taxonomies'])
+				? (array)$setup_args['custom_taxonomies']
+				: array(),
+			'payment_method_paths'  => isset($setup_args['payment_method_paths'])
+				? (array)$setup_args['payment_method_paths']
+				: array(),
+			'default_terms'         => isset($setup_args['default_terms'])
+				? (array)$setup_args['default_terms']
+				: array(),
+			// if not empty, inserts a new table row after this plugin's row on the WP Plugins page
+			// that can be used for adding upgrading/marketing info
+			'plugins_page_row'      => isset($setup_args['plugins_page_row'])
+				? $setup_args['plugins_page_row']
+				: '',
+			'namespace'             => isset(
+				$setup_args['namespace'],
+				$setup_args['namespace']['FQNS'],
+				$setup_args['namespace']['DIR']
+			)
+				? (array)$setup_args['namespace']
+				: array(),
+		);
+		// if plugin_action_slug is NOT set, but an admin page path IS set,
+		// then let's just use the plugin_slug since that will be used for linking to the admin page
+		$addon_settings['plugin_action_slug'] = empty($addon_settings['plugin_action_slug'])
+												&& ! empty($addon_settings['admin_path'])
+			? $addon_settings['plugin_slug']
+			: $addon_settings['plugin_action_slug'];
+		// full server path to main file (file loaded directly by WP)
+		$addon_settings['plugin_basename'] = plugin_basename($addon_settings['main_file_path']);
+		return $addon_settings;
+	}
+
+
+
+	/**
+	 * @param string $addon_name
+	 * @param array  $addon_settings
+	 * @return boolean
+	 */
 	private static function _addon_is_compatible( $addon_name, array $addon_settings ) {
-        global $wp_version;
-        $incompatibility_message = '';
-        //check whether this addon version is compatible with EE core
-        if (
-            isset(EE_Register_Addon::$_incompatible_addons[$addon_name])
-            && ! self::_meets_min_core_version_requirement(
-                EE_Register_Addon::$_incompatible_addons[$addon_name],
-                $addon_settings['version']
-            )
-        ) {
-            $incompatibility_message = sprintf(
-                __(
-                    '%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon is not compatible with this version of Event Espresso.%2$sPlease upgrade your "%1$s" addon to version %3$s or newer to resolve this issue.'
-                ),
-                $addon_name,
-                '<br />',
-                EE_Register_Addon::$_incompatible_addons[$addon_name],
-                '<span style="font-weight: bold; color: #D54E21;">',
-                '</span><br />'
-            );
-        } else if (
-            ! self::_meets_min_core_version_requirement($addon_settings['min_core_version'], espresso_version())
-        ) {
-            $incompatibility_message = sprintf(
-                __(
-                    '%5$sIMPORTANT!%6$sThe Event Espresso "%1$s" addon requires Event Espresso Core version "%2$s" or higher in order to run.%4$sYour version of Event Espresso Core is currently at "%3$s". Please upgrade Event Espresso Core first and then re-activate "%1$s".',
-                    'event_espresso'
-                ),
-                $addon_name,
-                self::_effective_version($addon_settings['min_core_version']),
-                self::_effective_version(espresso_version()),
-                '<br />',
-                '<span style="font-weight: bold; color: #D54E21;">',
-                '</span><br />'
-            );
-        } else if (version_compare($wp_version, $addon_settings['min_wp_version'], '<')) {
-            $incompatibility_message = sprintf(
-                __(
-                    '%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon requires WordPress version "%2$s" or greater.%3$sPlease update your version of WordPress to use the "%1$s" addon and to keep your site secure.',
-                    'event_espresso'
-                ),
-                $addon_name,
-                $addon_settings['min_wp_version'],
-                '<br />',
-                '<span style="font-weight: bold; color: #D54E21;">',
-                '</span><br />'
-            );
-        }
-        if ( ! empty($incompatibility_message)) {
-            // remove 'activate' from the REQUEST
-            // so WP doesn't erroneously tell the user the plugin activated fine when it didn't
-            unset($_GET['activate'], $_REQUEST['activate']);
-            if (current_user_can('activate_plugins')) {
-                // show an error message indicating the plugin didn't activate properly
-                EE_Error::add_error($incompatibility_message, __FILE__, __FUNCTION__, __LINE__);
-            }
-            // BAIL FROM THE ADDON REGISTRATION PROCESS
-            return false;
-        }
-        // addon IS compatible
-        return true;
+		global $wp_version;
+		$incompatibility_message = '';
+		//check whether this addon version is compatible with EE core
+		if (
+			isset(EE_Register_Addon::$_incompatible_addons[$addon_name])
+			&& ! self::_meets_min_core_version_requirement(
+				EE_Register_Addon::$_incompatible_addons[$addon_name],
+				$addon_settings['version']
+			)
+		) {
+			$incompatibility_message = sprintf(
+				__(
+					'%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon is not compatible with this version of Event Espresso.%2$sPlease upgrade your "%1$s" addon to version %3$s or newer to resolve this issue.'
+				),
+				$addon_name,
+				'<br />',
+				EE_Register_Addon::$_incompatible_addons[$addon_name],
+				'<span style="font-weight: bold; color: #D54E21;">',
+				'</span><br />'
+			);
+		} else if (
+			! self::_meets_min_core_version_requirement($addon_settings['min_core_version'], espresso_version())
+		) {
+			$incompatibility_message = sprintf(
+				__(
+					'%5$sIMPORTANT!%6$sThe Event Espresso "%1$s" addon requires Event Espresso Core version "%2$s" or higher in order to run.%4$sYour version of Event Espresso Core is currently at "%3$s". Please upgrade Event Espresso Core first and then re-activate "%1$s".',
+					'event_espresso'
+				),
+				$addon_name,
+				self::_effective_version($addon_settings['min_core_version']),
+				self::_effective_version(espresso_version()),
+				'<br />',
+				'<span style="font-weight: bold; color: #D54E21;">',
+				'</span><br />'
+			);
+		} else if (version_compare($wp_version, $addon_settings['min_wp_version'], '<')) {
+			$incompatibility_message = sprintf(
+				__(
+					'%4$sIMPORTANT!%5$sThe Event Espresso "%1$s" addon requires WordPress version "%2$s" or greater.%3$sPlease update your version of WordPress to use the "%1$s" addon and to keep your site secure.',
+					'event_espresso'
+				),
+				$addon_name,
+				$addon_settings['min_wp_version'],
+				'<br />',
+				'<span style="font-weight: bold; color: #D54E21;">',
+				'</span><br />'
+			);
+		}
+		if ( ! empty($incompatibility_message)) {
+			// remove 'activate' from the REQUEST
+			// so WP doesn't erroneously tell the user the plugin activated fine when it didn't
+			unset($_GET['activate'], $_REQUEST['activate']);
+			if (current_user_can('activate_plugins')) {
+				// show an error message indicating the plugin didn't activate properly
+				EE_Error::add_error($incompatibility_message, __FILE__, __FUNCTION__, __LINE__);
+			}
+			// BAIL FROM THE ADDON REGISTRATION PROCESS
+			return false;
+		}
+		// addon IS compatible
+		return true;
 	}
 
 
 
-    /**
-     * if plugin update engine is being used for auto-updates,
-     * then let's set that up now before going any further so that ALL addons can be updated
-     * (not needed if PUE is not being used)
-     *
-     * @param string $addon_name
-     * @param string $class_name
-     * @param array  $setup_args
-     * @return void
-     */
+	/**
+	 * if plugin update engine is being used for auto-updates,
+	 * then let's set that up now before going any further so that ALL addons can be updated
+	 * (not needed if PUE is not being used)
+	 *
+	 * @param string $addon_name
+	 * @param string $class_name
+	 * @param array  $setup_args
+	 * @return void
+	 */
 	private static function _parse_pue_options( $addon_name, $class_name, array $setup_args ) {
-        //
-        if ( ! empty($setup_args['pue_options'])) {
-            self::$_settings[$addon_name]['pue_options'] = array(
-                'pue_plugin_slug' => isset($setup_args['pue_options']['pue_plugin_slug'])
-                    ? (string)$setup_args['pue_options']['pue_plugin_slug']
-                    : 'espresso_' . strtolower($class_name),
-                'plugin_basename' => isset($setup_args['pue_options']['plugin_basename'])
-                    ? (string)$setup_args['pue_options']['plugin_basename']
-                    : plugin_basename($setup_args['main_file_path']),
-                'checkPeriod'     => isset($setup_args['pue_options']['checkPeriod'])
-                    ? (string)$setup_args['pue_options']['checkPeriod']
-                    : '24',
-                'use_wp_update'   => isset($setup_args['pue_options']['use_wp_update'])
-                    ? (string)$setup_args['pue_options']['use_wp_update']
-                    : false,
-            );
-            add_action(
-                'AHEE__EE_System__brew_espresso__after_pue_init',
-                array('EE_Register_Addon', 'load_pue_update')
-            );
-        }
+		//
+		if ( ! empty($setup_args['pue_options'])) {
+			self::$_settings[$addon_name]['pue_options'] = array(
+				'pue_plugin_slug' => isset($setup_args['pue_options']['pue_plugin_slug'])
+					? (string)$setup_args['pue_options']['pue_plugin_slug']
+					: 'espresso_' . strtolower($class_name),
+				'plugin_basename' => isset($setup_args['pue_options']['plugin_basename'])
+					? (string)$setup_args['pue_options']['plugin_basename']
+					: plugin_basename($setup_args['main_file_path']),
+				'checkPeriod'     => isset($setup_args['pue_options']['checkPeriod'])
+					? (string)$setup_args['pue_options']['checkPeriod']
+					: '24',
+				'use_wp_update'   => isset($setup_args['pue_options']['use_wp_update'])
+					? (string)$setup_args['pue_options']['use_wp_update']
+					: false,
+			);
+			add_action(
+				'AHEE__EE_System__brew_espresso__after_pue_init',
+				array('EE_Register_Addon', 'load_pue_update')
+			);
+		}
+	}
+
+
+
+	/**
+	 * register namespaces right away before any other files or classes get loaded, but AFTER the version checks
+	 *
+	 * @param array $addon_settings
+	 * @return void
+	 */
+	private static function _setup_namespaces(array $addon_settings)
+	{
+		//
+		if (
+		isset(
+			$addon_settings['namespace'],
+			$addon_settings['namespace']['FQNS'],
+			$addon_settings['namespace']['DIR']
+		)
+		) {
+			EE_Psr4AutoloaderInit::psr4_loader()->addNamespace(
+				$addon_settings['namespace']['FQNS'],
+				$addon_settings['namespace']['DIR']
+			);
+		}
 	}
 
 
 
-    /**
-     * register namespaces right away before any other files or classes get loaded, but AFTER the version checks
-     *
-     * @param array $addon_settings
-     * @return void
-     */
-    private static function _setup_namespaces(array $addon_settings)
-    {
-        //
-        if (
-        isset(
-            $addon_settings['namespace'],
-            $addon_settings['namespace']['FQNS'],
-            $addon_settings['namespace']['DIR']
-        )
-        ) {
-            EE_Psr4AutoloaderInit::psr4_loader()->addNamespace(
-                $addon_settings['namespace']['FQNS'],
-                $addon_settings['namespace']['DIR']
-            );
-        }
-    }
-
-
-
-    /**
-     * @param string $addon_name
-     * @param array  $addon_settings
-     * @return bool
-     */
+	/**
+	 * @param string $addon_name
+	 * @param array  $addon_settings
+	 * @return bool
+	 */
 	private static function _addon_activation( $addon_name, array $addon_settings ) {
-        // this is an activation request
-        if (did_action('activate_plugin')) {
-            //to find if THIS is the addon that was activated,
-            //just check if we have already registered it or not
-            //(as the newly-activated addon wasn't around the first time addons were registered)
-            if ( ! isset(self::$_settings[$addon_name])) {
-                self::$_settings[$addon_name] = $addon_settings;
-                $addon = self::_load_and_init_addon_class($addon_name);
-                $addon->set_activation_indicator_option();
-                // dont bother setting up the rest of the addon.
-                // we know it was just activated and the request will end soon
-            }
-            return true;
-        } else {
-            // make sure this was called in the right place!
-            if (
-                ! did_action('AHEE__EE_System__load_espresso_addons')
-                || did_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin')
-            ) {
-                EE_Error::doing_it_wrong(
-                    __METHOD__,
-                    sprintf(
-                        __(
-                            'An attempt to register an EE_Addon named "%s" has failed because it was not registered at the correct time.  Please use the "AHEE__EE_System__load_espresso_addons" hook to register addons.',
-                            'event_espresso'
-                        ),
-                        $addon_name
-                    ),
-                    '4.3.0'
-                );
-            }
-            self::$_settings[$addon_name] = $addon_settings;
-        }
-        return false;
-    }
-
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
-    private static function _setup_autoloaders($addon_name)
-    {
-        if ( ! empty(self::$_settings[$addon_name]['autoloader_paths'])) {
-            // setup autoloader for single file
-            EEH_Autoloader::instance()->register_autoloader(self::$_settings[$addon_name]['autoloader_paths']);
-        }
-        // setup autoloaders for folders
-        if ( ! empty(self::$_settings[$addon_name]['autoloader_folders'])) {
-            foreach ((array)self::$_settings[$addon_name]['autoloader_folders'] as $autoloader_folder) {
-                EEH_Autoloader::register_autoloaders_for_each_file_in_folder($autoloader_folder);
-            }
-        }
-    }
-
-
-
-    /**
-     * register new models and extensions
-     *
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		// this is an activation request
+		if (did_action('activate_plugin')) {
+			//to find if THIS is the addon that was activated,
+			//just check if we have already registered it or not
+			//(as the newly-activated addon wasn't around the first time addons were registered)
+			if ( ! isset(self::$_settings[$addon_name])) {
+				self::$_settings[$addon_name] = $addon_settings;
+				$addon = self::_load_and_init_addon_class($addon_name);
+				$addon->set_activation_indicator_option();
+				// dont bother setting up the rest of the addon.
+				// we know it was just activated and the request will end soon
+			}
+			return true;
+		} else {
+			// make sure this was called in the right place!
+			if (
+				! did_action('AHEE__EE_System__load_espresso_addons')
+				|| did_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin')
+			) {
+				EE_Error::doing_it_wrong(
+					__METHOD__,
+					sprintf(
+						__(
+							'An attempt to register an EE_Addon named "%s" has failed because it was not registered at the correct time.  Please use the "AHEE__EE_System__load_espresso_addons" hook to register addons.',
+							'event_espresso'
+						),
+						$addon_name
+					),
+					'4.3.0'
+				);
+			}
+			self::$_settings[$addon_name] = $addon_settings;
+		}
+		return false;
+	}
+
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private static function _setup_autoloaders($addon_name)
+	{
+		if ( ! empty(self::$_settings[$addon_name]['autoloader_paths'])) {
+			// setup autoloader for single file
+			EEH_Autoloader::instance()->register_autoloader(self::$_settings[$addon_name]['autoloader_paths']);
+		}
+		// setup autoloaders for folders
+		if ( ! empty(self::$_settings[$addon_name]['autoloader_folders'])) {
+			foreach ((array)self::$_settings[$addon_name]['autoloader_folders'] as $autoloader_folder) {
+				EEH_Autoloader::register_autoloaders_for_each_file_in_folder($autoloader_folder);
+			}
+		}
+	}
+
+
+
+	/**
+	 * register new models and extensions
+	 *
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_models_and_extensions( $addon_name ) {
-        // register new models
-        if (
-            ! empty(self::$_settings[$addon_name]['model_paths'])
-            || ! empty(self::$_settings[$addon_name]['class_paths'])
-        ) {
-            EE_Register_Model::register(
-                $addon_name,
-                array(
-                    'model_paths' => self::$_settings[$addon_name]['model_paths'],
-                    'class_paths' => self::$_settings[$addon_name]['class_paths'],
-                )
-            );
-        }
-        // register model extensions
-        if (
-            ! empty(self::$_settings[$addon_name]['model_extension_paths'])
-            || ! empty(self::$_settings[$addon_name]['class_extension_paths'])
-        ) {
-            EE_Register_Model_Extensions::register(
-                $addon_name,
-                array(
-                    'model_extension_paths' => self::$_settings[$addon_name]['model_extension_paths'],
-                    'class_extension_paths' => self::$_settings[$addon_name]['class_extension_paths'],
-                )
-            );
-        }
-    }
-
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		// register new models
+		if (
+			! empty(self::$_settings[$addon_name]['model_paths'])
+			|| ! empty(self::$_settings[$addon_name]['class_paths'])
+		) {
+			EE_Register_Model::register(
+				$addon_name,
+				array(
+					'model_paths' => self::$_settings[$addon_name]['model_paths'],
+					'class_paths' => self::$_settings[$addon_name]['class_paths'],
+				)
+			);
+		}
+		// register model extensions
+		if (
+			! empty(self::$_settings[$addon_name]['model_extension_paths'])
+			|| ! empty(self::$_settings[$addon_name]['class_extension_paths'])
+		) {
+			EE_Register_Model_Extensions::register(
+				$addon_name,
+				array(
+					'model_extension_paths' => self::$_settings[$addon_name]['model_extension_paths'],
+					'class_extension_paths' => self::$_settings[$addon_name]['class_extension_paths'],
+				)
+			);
+		}
+	}
+
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_data_migration_scripts( $addon_name ) {
-        // setup DMS
-        if ( ! empty(self::$_settings[$addon_name]['dms_paths'])) {
-            EE_Register_Data_Migration_Scripts::register(
-                $addon_name,
-                array('dms_paths' => self::$_settings[$addon_name]['dms_paths'])
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		// setup DMS
+		if ( ! empty(self::$_settings[$addon_name]['dms_paths'])) {
+			EE_Register_Data_Migration_Scripts::register(
+				$addon_name,
+				array('dms_paths' => self::$_settings[$addon_name]['dms_paths'])
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_config( $addon_name ) {
-        // if config_class is present let's register config.
-        if ( ! empty(self::$_settings[$addon_name]['config_class'])) {
-            EE_Register_Config::register(
-                self::$_settings[$addon_name]['config_class'],
-                array(
-                    'config_section' => self::$_settings[$addon_name]['config_section'],
-                    'config_name'    => self::$_settings[$addon_name]['config_name'],
-                )
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		// if config_class is present let's register config.
+		if ( ! empty(self::$_settings[$addon_name]['config_class'])) {
+			EE_Register_Config::register(
+				self::$_settings[$addon_name]['config_class'],
+				array(
+					'config_section' => self::$_settings[$addon_name]['config_section'],
+					'config_name'    => self::$_settings[$addon_name]['config_name'],
+				)
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_admin_pages( $addon_name ) {
-        if ( ! empty(self::$_settings[$addon_name]['admin_path'])) {
-            EE_Register_Admin_Page::register(
-                $addon_name,
-                array('page_path' => self::$_settings[$addon_name]['admin_path'])
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		if ( ! empty(self::$_settings[$addon_name]['admin_path'])) {
+			EE_Register_Admin_Page::register(
+				$addon_name,
+				array('page_path' => self::$_settings[$addon_name]['admin_path'])
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_modules( $addon_name ) {
-        if ( ! empty(self::$_settings[$addon_name]['module_paths'])) {
-            EE_Register_Module::register(
-                $addon_name,
-                array('module_paths' => self::$_settings[$addon_name]['module_paths'])
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		if ( ! empty(self::$_settings[$addon_name]['module_paths'])) {
+			EE_Register_Module::register(
+				$addon_name,
+				array('module_paths' => self::$_settings[$addon_name]['module_paths'])
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_shortcodes( $addon_name ) {
-        if ( ! empty(self::$_settings[$addon_name]['shortcode_paths'])) {
-            EE_Register_Shortcode::register(
-                $addon_name,
-                array('shortcode_paths' => self::$_settings[$addon_name]['shortcode_paths'])
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		if ( ! empty(self::$_settings[$addon_name]['shortcode_paths'])) {
+			EE_Register_Shortcode::register(
+				$addon_name,
+				array('shortcode_paths' => self::$_settings[$addon_name]['shortcode_paths'])
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_widgets( $addon_name ) {
-        if ( ! empty(self::$_settings[$addon_name]['widget_paths'])) {
-            EE_Register_Widget::register(
-                $addon_name,
-                array('widget_paths' => self::$_settings[$addon_name]['widget_paths'])
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		if ( ! empty(self::$_settings[$addon_name]['widget_paths'])) {
+			EE_Register_Widget::register(
+				$addon_name,
+				array('widget_paths' => self::$_settings[$addon_name]['widget_paths'])
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_capabilities( $addon_name ) {
-        if ( ! empty(self::$_settings[$addon_name]['capabilities'])) {
-            EE_Register_Capabilities::register(
-                $addon_name,
-                array(
-                    'capabilities'    => self::$_settings[$addon_name]['capabilities'],
-                    'capability_maps' => self::$_settings[$addon_name]['capability_maps'],
-                )
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		if ( ! empty(self::$_settings[$addon_name]['capabilities'])) {
+			EE_Register_Capabilities::register(
+				$addon_name,
+				array(
+					'capabilities'    => self::$_settings[$addon_name]['capabilities'],
+					'capability_maps' => self::$_settings[$addon_name]['capability_maps'],
+				)
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_message_types( $addon_name ) {
-        if ( ! empty(self::$_settings[$addon_name]['message_types'])) {
-            add_action(
-                'EE_Brewing_Regular___messages_caf',
-                array('EE_Register_Addon', 'register_message_types')
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		if ( ! empty(self::$_settings[$addon_name]['message_types'])) {
+			add_action(
+				'EE_Brewing_Regular___messages_caf',
+				array('EE_Register_Addon', 'register_message_types')
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_custom_post_types( $addon_name ) {
-        if (
-            ! empty(self::$_settings[$addon_name]['custom_post_types'])
-            || ! empty(self::$_settings[$addon_name]['custom_taxonomies'])
-        ) {
-            EE_Register_CPT::register(
-                $addon_name,
-                array(
-                    'cpts'          => self::$_settings[$addon_name]['custom_post_types'],
-                    'cts'           => self::$_settings[$addon_name]['custom_taxonomies'],
-                    'default_terms' => self::$_settings[$addon_name]['default_terms'],
-                )
-            );
-        }
-    }
-
-
-    /**
-     * @param string $addon_name
-     * @return void
-     * @throws \EE_Error
-     */
+		if (
+			! empty(self::$_settings[$addon_name]['custom_post_types'])
+			|| ! empty(self::$_settings[$addon_name]['custom_taxonomies'])
+		) {
+			EE_Register_CPT::register(
+				$addon_name,
+				array(
+					'cpts'          => self::$_settings[$addon_name]['custom_post_types'],
+					'cts'           => self::$_settings[$addon_name]['custom_taxonomies'],
+					'default_terms' => self::$_settings[$addon_name]['default_terms'],
+				)
+			);
+		}
+	}
+
+
+	/**
+	 * @param string $addon_name
+	 * @return void
+	 * @throws \EE_Error
+	 */
 	private static function _register_payment_methods( $addon_name ) {
-        if ( ! empty(self::$_settings[$addon_name]['payment_method_paths'])) {
-            EE_Register_Payment_Method::register(
-                $addon_name,
-                array('payment_method_paths' => self::$_settings[$addon_name]['payment_method_paths'])
-            );
-        }
-    }
+		if ( ! empty(self::$_settings[$addon_name]['payment_method_paths'])) {
+			EE_Register_Payment_Method::register(
+				$addon_name,
+				array('payment_method_paths' => self::$_settings[$addon_name]['payment_method_paths'])
+			);
+		}
+	}
 
 
 
@@ -896,14 +896,14 @@ 
 		//unfortunately this can't be hooked in upon construction, because we don't have
 		//the plugin mainfile's path upon construction.
 		register_deactivation_hook( $addon->get_main_plugin_file(), array( $addon, 'deactivation' ) );
-        // call any additional admin_callback functions during load_admin_controller hook
-        if ( ! empty(self::$_settings[$addon_name]['admin_callback'])) {
-            add_action(
-                'AHEE__EE_System__load_controllers__load_admin_controllers',
-                array($addon, self::$_settings[$addon_name]['admin_callback'])
-            );
-        }
-        return $addon;
+		// call any additional admin_callback functions during load_admin_controller hook
+		if ( ! empty(self::$_settings[$addon_name]['admin_callback'])) {
+			add_action(
+				'AHEE__EE_System__load_controllers__load_admin_controllers',
+				array($addon, self::$_settings[$addon_name]['admin_callback'])
+			);
+		}
+		return $addon;
 	}
 
 
@@ -999,15 +999,15 @@ 
 				EE_Register_Widget::deregister( $addon_name );
 			}
 			if ( ! empty( self::$_settings[ $addon_name ]['model_paths'] )
-			     ||
-			     ! empty( self::$_settings[ $addon_name ]['class_paths'] )
+				 ||
+				 ! empty( self::$_settings[ $addon_name ]['class_paths'] )
 			) {
 				// add to list of shortcodes to be registered
 				EE_Register_Model::deregister( $addon_name );
 			}
 			if ( ! empty( self::$_settings[ $addon_name ]['model_extension_paths'] )
-			     ||
-			     ! empty( self::$_settings[ $addon_name ]['class_extension_paths'] )
+				 ||
+				 ! empty( self::$_settings[ $addon_name ]['class_extension_paths'] )
 			) {
 				// add to list of shortcodes to be registered
 				EE_Register_Model_Extensions::deregister( $addon_name );