eventespresso / event-espresso-core

core/services/address/CountrySubRegionDao.php

Indentation +223 added lines, -223 removed lines

@@ -26,248 +26,248 @@
 class CountrySubRegionDao
 {
 
-    const REPO_URL = 'https://raw.githubusercontent.com/eventespresso/countries-and-subregions/master/';
+	const REPO_URL = 'https://raw.githubusercontent.com/eventespresso/countries-and-subregions/master/';
 
-    const OPTION_NAME_COUNTRY_DATA_VERSION = 'espresso-country-sub-region-data-version';
+	const OPTION_NAME_COUNTRY_DATA_VERSION = 'espresso-country-sub-region-data-version';
 
-    /**
-     * @var EEM_State $state_model
-     */
-    private $state_model;
+	/**
+	 * @var EEM_State $state_model
+	 */
+	private $state_model;
 
-    /**
-     * @var JsonValidator $json_validator
-     */
-    private $json_validator;
+	/**
+	 * @var JsonValidator $json_validator
+	 */
+	private $json_validator;
 
-    /**
-     * @var string $data_version
-     */
-    private $data_version;
+	/**
+	 * @var string $data_version
+	 */
+	private $data_version;
 
-    /**
-     * @var array $countries
-     */
-    private $countries = array();
+	/**
+	 * @var array $countries
+	 */
+	private $countries = array();
 
 
-    /**
-     * CountrySubRegionDao constructor.
-     *
-     * @param EEM_State     $state_model
-     * @param JsonValidator $json_validator
-     */
-    public function __construct(EEM_State $state_model, JsonValidator $json_validator)
-    {
-        $this->state_model = $state_model;
-        $this->json_validator = $json_validator;
-    }
+	/**
+	 * CountrySubRegionDao constructor.
+	 *
+	 * @param EEM_State     $state_model
+	 * @param JsonValidator $json_validator
+	 */
+	public function __construct(EEM_State $state_model, JsonValidator $json_validator)
+	{
+		$this->state_model = $state_model;
+		$this->json_validator = $json_validator;
+	}
 
 
-    /**
-     * @param EE_Country $country_object
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function saveCountrySubRegions(EE_Country $country_object)
-    {
-        $CNT_ISO = $country_object->ID();
-        $has_sub_regions = $this->state_model->count(array(array('Country.CNT_ISO' => $CNT_ISO)));
-        $data = [];
-        if (empty($this->countries)) {
-            $this->data_version = $this->getCountrySubRegionDataVersion();
-            $data = $this->retrieveJsonData(self::REPO_URL . 'countries.json');
-        }
-        if (empty($data)) {
-            EE_Error::add_error(
-                'Country Subregion Data could not be retrieved',
-                __FILE__,
-                __METHOD__,
-                __LINE__
-            );
-        }
-        if (! $has_sub_regions
-            || (isset($data->version) && version_compare($data->version, $this->data_version))
-        ) {
-            if (isset($data->countries)
-                && $this->processCountryData($CNT_ISO, $data->countries) > 0
-            ) {
-                $this->countries = $data->countries;
-                $this->updateCountrySubRegionDataVersion($data->version);
-                return true;
-            }
-        }
-        return false;
-    }
+	/**
+	 * @param EE_Country $country_object
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function saveCountrySubRegions(EE_Country $country_object)
+	{
+		$CNT_ISO = $country_object->ID();
+		$has_sub_regions = $this->state_model->count(array(array('Country.CNT_ISO' => $CNT_ISO)));
+		$data = [];
+		if (empty($this->countries)) {
+			$this->data_version = $this->getCountrySubRegionDataVersion();
+			$data = $this->retrieveJsonData(self::REPO_URL . 'countries.json');
+		}
+		if (empty($data)) {
+			EE_Error::add_error(
+				'Country Subregion Data could not be retrieved',
+				__FILE__,
+				__METHOD__,
+				__LINE__
+			);
+		}
+		if (! $has_sub_regions
+			|| (isset($data->version) && version_compare($data->version, $this->data_version))
+		) {
+			if (isset($data->countries)
+				&& $this->processCountryData($CNT_ISO, $data->countries) > 0
+			) {
+				$this->countries = $data->countries;
+				$this->updateCountrySubRegionDataVersion($data->version);
+				return true;
+			}
+		}
+		return false;
+	}
 
 
-    /**
-     * @since 4.9.70.p
-     * @return string
-     */
-    private function getCountrySubRegionDataVersion()
-    {
-        return get_option(self::OPTION_NAME_COUNTRY_DATA_VERSION, null);
-    }
+	/**
+	 * @since 4.9.70.p
+	 * @return string
+	 */
+	private function getCountrySubRegionDataVersion()
+	{
+		return get_option(self::OPTION_NAME_COUNTRY_DATA_VERSION, null);
+	}
 
 
-    /**
-     * @param string $version
-     */
-    private function updateCountrySubRegionDataVersion($version = '')
-    {
-        // add version option if it has never been added before, or update existing
-        if ($this->data_version === null) {
-            add_option(self::OPTION_NAME_COUNTRY_DATA_VERSION, $version, '', false);
-        } else {
-            update_option(self::OPTION_NAME_COUNTRY_DATA_VERSION, $version);
-        }
-    }
+	/**
+	 * @param string $version
+	 */
+	private function updateCountrySubRegionDataVersion($version = '')
+	{
+		// add version option if it has never been added before, or update existing
+		if ($this->data_version === null) {
+			add_option(self::OPTION_NAME_COUNTRY_DATA_VERSION, $version, '', false);
+		} else {
+			update_option(self::OPTION_NAME_COUNTRY_DATA_VERSION, $version);
+		}
+	}
 
 
-    /**
-     * @param string $CNT_ISO
-     * @param array  $countries
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @since 4.9.70.p
-     */
-    private function processCountryData($CNT_ISO, $countries = array())
-    {
-        if (! empty($countries)) {
-            foreach ($countries as $key => $country) {
-                if ($country instanceof stdClass
-                    && $country->code === $CNT_ISO
-                    && empty($country->sub_regions)
-                    && ! empty($country->filename)
-                ) {
-                    $country->sub_regions = $this->retrieveJsonData(
-                        self::REPO_URL . 'countries/' . $country->filename . '.json'
-                    );
-                    return $this->saveSubRegionData($country, $country->sub_regions);
-                }
-            }
-        }
-        return 0;
-    }
+	/**
+	 * @param string $CNT_ISO
+	 * @param array  $countries
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @since 4.9.70.p
+	 */
+	private function processCountryData($CNT_ISO, $countries = array())
+	{
+		if (! empty($countries)) {
+			foreach ($countries as $key => $country) {
+				if ($country instanceof stdClass
+					&& $country->code === $CNT_ISO
+					&& empty($country->sub_regions)
+					&& ! empty($country->filename)
+				) {
+					$country->sub_regions = $this->retrieveJsonData(
+						self::REPO_URL . 'countries/' . $country->filename . '.json'
+					);
+					return $this->saveSubRegionData($country, $country->sub_regions);
+				}
+			}
+		}
+		return 0;
+	}
 
 
-    /**
-     * @param string $url
-     * @return array
-     */
-    private function retrieveJsonData($url)
-    {
-        if (empty($url)) {
-            EE_Error::add_error(
-                'No URL was provided!',
-                __FILE__,
-                __METHOD__,
-                __LINE__
-            );
-            return array();
-        }
-        $request = wp_safe_remote_get($url);
-        if ($request instanceof WP_Error) {
-            EE_Error::add_error(
-                $request->get_error_message(),
-                __FILE__,
-                __METHOD__,
-                __LINE__
-            );
-            return array();
-        }
-        $body = wp_remote_retrieve_body($request);
-        $json = json_decode($body);
-        if ($this->json_validator->isValid(__FILE__, __METHOD__, __LINE__)) {
-            return $json;
-        }
-        return array();
-    }
+	/**
+	 * @param string $url
+	 * @return array
+	 */
+	private function retrieveJsonData($url)
+	{
+		if (empty($url)) {
+			EE_Error::add_error(
+				'No URL was provided!',
+				__FILE__,
+				__METHOD__,
+				__LINE__
+			);
+			return array();
+		}
+		$request = wp_safe_remote_get($url);
+		if ($request instanceof WP_Error) {
+			EE_Error::add_error(
+				$request->get_error_message(),
+				__FILE__,
+				__METHOD__,
+				__LINE__
+			);
+			return array();
+		}
+		$body = wp_remote_retrieve_body($request);
+		$json = json_decode($body);
+		if ($this->json_validator->isValid(__FILE__, __METHOD__, __LINE__)) {
+			return $json;
+		}
+		return array();
+	}
 
 
-    /**
-     * @param stdClass $country
-     * @param array    $sub_regions
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    private function saveSubRegionData(stdClass $country, $sub_regions = array())
-    {
-        $results = 0;
-        if (is_array($sub_regions)) {
-            $existing_sub_regions = $this->getExistingStateAbbreviations($country->code);
-            foreach ($sub_regions as $sub_region) {
-                // remove country code from sub region code
-                $abbrev = str_replace(
-                    $country->code . '-',
-                    '',
-                    sanitize_text_field($sub_region->code)
-                );
-                // but NOT if sub region code results in only a number
-                if (absint($abbrev) !== 0) {
-                    $abbrev = sanitize_text_field($sub_region->code);
-                }
-                if (! in_array($abbrev, $existing_sub_regions, true)
-                    && $this->state_model->insert(
-                        [
-                            // STA_ID CNT_ISO STA_abbrev STA_name STA_active
-                            'CNT_ISO'    => $country->code,
-                            'STA_abbrev' => $abbrev,
-                            'STA_name'   => sanitize_text_field($sub_region->name),
-                            'STA_active' => 1,
-                        ]
-                    )
-                ) {
-                    $results++;
-                }
-            }
-        }
-        return $results;
-    }
+	/**
+	 * @param stdClass $country
+	 * @param array    $sub_regions
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	private function saveSubRegionData(stdClass $country, $sub_regions = array())
+	{
+		$results = 0;
+		if (is_array($sub_regions)) {
+			$existing_sub_regions = $this->getExistingStateAbbreviations($country->code);
+			foreach ($sub_regions as $sub_region) {
+				// remove country code from sub region code
+				$abbrev = str_replace(
+					$country->code . '-',
+					'',
+					sanitize_text_field($sub_region->code)
+				);
+				// but NOT if sub region code results in only a number
+				if (absint($abbrev) !== 0) {
+					$abbrev = sanitize_text_field($sub_region->code);
+				}
+				if (! in_array($abbrev, $existing_sub_regions, true)
+					&& $this->state_model->insert(
+						[
+							// STA_ID CNT_ISO STA_abbrev STA_name STA_active
+							'CNT_ISO'    => $country->code,
+							'STA_abbrev' => $abbrev,
+							'STA_name'   => sanitize_text_field($sub_region->name),
+							'STA_active' => 1,
+						]
+					)
+				) {
+					$results++;
+				}
+			}
+		}
+		return $results;
+	}
 
 
-    /**
-     * @param string $CNT_ISO
-     * @since 4.9.76.p
-     * @return array
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    private function getExistingStateAbbreviations($CNT_ISO)
-    {
-        $existing_sub_region_IDs = [];
-        $existing_sub_regions = $this->state_model->get_all(array(
-            array(
-                'Country.CNT_ISO' => array(
-                    'IN',
-                    [$CNT_ISO]
-                )
-            ),
-            'order_by' => array('Country.CNT_name' => 'ASC', 'STA_name' => 'ASC')
-        ));
-        if (is_array($existing_sub_regions)) {
-            foreach ($existing_sub_regions as $existing_sub_region) {
-                if ($existing_sub_region instanceof EE_State) {
-                    $existing_sub_region_IDs[] = $existing_sub_region->abbrev();
-                }
-            }
-        }
-        return $existing_sub_region_IDs;
-    }
+	/**
+	 * @param string $CNT_ISO
+	 * @since 4.9.76.p
+	 * @return array
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	private function getExistingStateAbbreviations($CNT_ISO)
+	{
+		$existing_sub_region_IDs = [];
+		$existing_sub_regions = $this->state_model->get_all(array(
+			array(
+				'Country.CNT_ISO' => array(
+					'IN',
+					[$CNT_ISO]
+				)
+			),
+			'order_by' => array('Country.CNT_name' => 'ASC', 'STA_name' => 'ASC')
+		));
+		if (is_array($existing_sub_regions)) {
+			foreach ($existing_sub_regions as $existing_sub_region) {
+				if ($existing_sub_region instanceof EE_State) {
+					$existing_sub_region_IDs[] = $existing_sub_region->abbrev();
+				}
+			}
+		}
+		return $existing_sub_region_IDs;
+	}
 }

modules/core_rest_api/EED_Core_Rest_Api.module.php

Indentation +1328 added lines, -1328 removed lines

@@ -23,1332 +23,1332 @@
 class EED_Core_Rest_Api extends \EED_Module
 {
 
-    const ee_api_namespace = Domain::API_NAMESPACE;
-
-    const ee_api_namespace_for_regex = 'ee\/v([^/]*)\/';
-
-    const saved_routes_option_names = 'ee_core_routes';
-
-    /**
-     * string used in _links response bodies to make them globally unique.
-     *
-     * @see http://v2.wp-api.org/extending/linking/
-     */
-    const ee_api_link_namespace = 'https://api.eventespresso.com/';
-
-    /**
-     * @var CalculatedModelFields
-     */
-    protected static $_field_calculator;
-
-
-    /**
-     * @return EED_Core_Rest_Api|EED_Module
-     */
-    public static function instance()
-    {
-        self::$_field_calculator = LoaderFactory::getLoader()->load('EventEspresso\core\libraries\rest_api\CalculatedModelFields');
-        return parent::get_instance(__CLASS__);
-    }
-
-
-    /**
-     *    set_hooks - for hooking into EE Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function set_hooks()
-    {
-        self::set_hooks_both();
-    }
-
-
-    /**
-     *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function set_hooks_admin()
-    {
-        self::set_hooks_both();
-    }
-
-
-    public static function set_hooks_both()
-    {
-        add_action('rest_api_init', array('EED_Core_Rest_Api', 'register_routes'), 10);
-        add_action('rest_api_init', array('EED_Core_Rest_Api', 'set_hooks_rest_api'), 5);
-        add_filter('rest_route_data', array('EED_Core_Rest_Api', 'hide_old_endpoints'), 10, 2);
-        add_filter(
-            'rest_index',
-            array('EventEspresso\core\libraries\rest_api\controllers\model\Meta', 'filterEeMetadataIntoIndex')
-        );
-        EED_Core_Rest_Api::invalidate_cached_route_data_on_version_change();
-    }
-
-
-    /**
-     * sets up hooks which only need to be included as part of REST API requests;
-     * other requests like to the frontend or admin etc don't need them
-     *
-     * @throws \EE_Error
-     */
-    public static function set_hooks_rest_api()
-    {
-        // set hooks which account for changes made to the API
-        EED_Core_Rest_Api::_set_hooks_for_changes();
-    }
-
-
-    /**
-     * public wrapper of _set_hooks_for_changes.
-     * Loads all the hooks which make requests to old versions of the API
-     * appear the same as they always did
-     *
-     * @throws EE_Error
-     */
-    public static function set_hooks_for_changes()
-    {
-        self::_set_hooks_for_changes();
-    }
-
-
-    /**
-     * Loads all the hooks which make requests to old versions of the API
-     * appear the same as they always did
-     *
-     * @throws EE_Error
-     */
-    protected static function _set_hooks_for_changes()
-    {
-        $folder_contents = EEH_File::get_contents_of_folders(array(EE_LIBRARIES . 'rest_api' . DS . 'changes'), false);
-        foreach ($folder_contents as $classname_in_namespace => $filepath) {
-            // ignore the base parent class
-            // and legacy named classes
-            if ($classname_in_namespace === 'ChangesInBase'
-                || strpos($classname_in_namespace, 'Changes_In_') === 0
-            ) {
-                continue;
-            }
-            $full_classname = 'EventEspresso\core\libraries\rest_api\changes\\' . $classname_in_namespace;
-            if (class_exists($full_classname)) {
-                $instance_of_class = new $full_classname;
-                if ($instance_of_class instanceof ChangesInBase) {
-                    $instance_of_class->setHooks();
-                }
-            }
-        }
-    }
-
-
-    /**
-     * Filters the WP routes to add our EE-related ones. This takes a bit of time
-     * so we actually prefer to only do it when an EE plugin is activated or upgraded
-     *
-     * @throws \EE_Error
-     */
-    public static function register_routes()
-    {
-        foreach (EED_Core_Rest_Api::get_ee_route_data() as $namespace => $relative_routes) {
-            foreach ($relative_routes as $relative_route => $data_for_multiple_endpoints) {
-                /**
-                 * @var array     $data_for_multiple_endpoints numerically indexed array
-                 *                                         but can also contain route options like {
-                 * @type array    $schema                      {
-                 * @type callable $schema_callback
-                 * @type array    $callback_args               arguments that will be passed to the callback, after the
-                 * WP_REST_Request of course
-                 * }
-                 * }
-                 */
-                // when registering routes, register all the endpoints' data at the same time
-                $multiple_endpoint_args = array();
-                foreach ($data_for_multiple_endpoints as $endpoint_key => $data_for_single_endpoint) {
-                    /**
-                     * @var array     $data_for_single_endpoint {
-                     * @type callable $callback
-                     * @type string methods
-                     * @type array args
-                     * @type array _links
-                     * @type array    $callback_args            arguments that will be passed to the callback, after the
-                     * WP_REST_Request of course
-                     * }
-                     */
-                    // skip route options
-                    if (! is_numeric($endpoint_key)) {
-                        continue;
-                    }
-                    if (! isset($data_for_single_endpoint['callback'], $data_for_single_endpoint['methods'])) {
-                        throw new EE_Error(
-                            esc_html__(
-                            // @codingStandardsIgnoreStart
-                                'Endpoint configuration data needs to have entries "callback" (callable) and "methods" (comma-separated list of accepts HTTP methods).',
-                                // @codingStandardsIgnoreEnd
-                                'event_espresso'
-                            )
-                        );
-                    }
-                    $callback = $data_for_single_endpoint['callback'];
-                    $single_endpoint_args = array(
-                        'methods' => $data_for_single_endpoint['methods'],
-                        'args'    => isset($data_for_single_endpoint['args']) ? $data_for_single_endpoint['args']
-                            : array(),
-                    );
-                    if (isset($data_for_single_endpoint['_links'])) {
-                        $single_endpoint_args['_links'] = $data_for_single_endpoint['_links'];
-                    }
-                    if (isset($data_for_single_endpoint['callback_args'])) {
-                        $callback_args = $data_for_single_endpoint['callback_args'];
-                        $single_endpoint_args['callback'] = function (\WP_REST_Request $request) use (
-                            $callback,
-                            $callback_args
-                        ) {
-                            array_unshift($callback_args, $request);
-                            return call_user_func_array(
-                                $callback,
-                                $callback_args
-                            );
-                        };
-                    } else {
-                        $single_endpoint_args['callback'] = $data_for_single_endpoint['callback'];
-                    }
-                    $multiple_endpoint_args[] = $single_endpoint_args;
-                }
-                if (isset($data_for_multiple_endpoints['schema'])) {
-                    $schema_route_data = $data_for_multiple_endpoints['schema'];
-                    $schema_callback = $schema_route_data['schema_callback'];
-                    $callback_args = $schema_route_data['callback_args'];
-                    $multiple_endpoint_args['schema'] = function () use ($schema_callback, $callback_args) {
-                        return call_user_func_array(
-                            $schema_callback,
-                            $callback_args
-                        );
-                    };
-                }
-                register_rest_route(
-                    $namespace,
-                    $relative_route,
-                    $multiple_endpoint_args
-                );
-            }
-        }
-    }
-
-
-    /**
-     * Checks if there was a version change or something that merits invalidating the cached
-     * route data. If so, invalidates the cached route data so that it gets refreshed
-     * next time the WP API is used
-     */
-    public static function invalidate_cached_route_data_on_version_change()
-    {
-        if (EE_System::instance()->detect_req_type() !== EE_System::req_type_normal) {
-            EED_Core_Rest_Api::invalidate_cached_route_data();
-        }
-        foreach (EE_Registry::instance()->addons as $addon) {
-            if ($addon instanceof EE_Addon && $addon->detect_req_type() !== EE_System::req_type_normal) {
-                EED_Core_Rest_Api::invalidate_cached_route_data();
-            }
-        }
-    }
-
-
-    /**
-     * Removes the cached route data so it will get refreshed next time the WP API is used
-     */
-    public static function invalidate_cached_route_data()
-    {
-        // delete the saved EE REST API routes
-        foreach (EED_Core_Rest_Api::versions_served() as $version => $hidden) {
-            delete_option(EED_Core_Rest_Api::saved_routes_option_names . $version);
-        }
-    }
-
-
-    /**
-     * Gets the EE route data
-     *
-     * @return array top-level key is the namespace, next-level key is the route and its value is array{
-     * @throws \EE_Error
-     * @type string|array $callback
-     * @type string       $methods
-     * @type boolean      $hidden_endpoint
-     * }
-     */
-    public static function get_ee_route_data()
-    {
-        $ee_routes = array();
-        foreach (self::versions_served() as $version => $hidden_endpoints) {
-            $ee_routes[ self::ee_api_namespace . $version ] = self::_get_ee_route_data_for_version(
-                $version,
-                $hidden_endpoints
-            );
-        }
-        return $ee_routes;
-    }
-
-
-    /**
-     * Gets the EE route data from the wp options if it exists already,
-     * otherwise re-generates it and saves it to the option
-     *
-     * @param string  $version
-     * @param boolean $hidden_endpoints
-     * @return array
-     * @throws \EE_Error
-     */
-    protected static function _get_ee_route_data_for_version($version, $hidden_endpoints = false)
-    {
-        $ee_routes = get_option(self::saved_routes_option_names . $version, null);
-        if (! $ee_routes || EED_Core_Rest_Api::debugMode()) {
-            $ee_routes = self::_save_ee_route_data_for_version($version, $hidden_endpoints);
-        }
-        return $ee_routes;
-    }
-
-
-    /**
-     * Saves the EE REST API route data to a wp option and returns it
-     *
-     * @param string  $version
-     * @param boolean $hidden_endpoints
-     * @return mixed|null
-     * @throws \EE_Error
-     */
-    protected static function _save_ee_route_data_for_version($version, $hidden_endpoints = false)
-    {
-        $instance = self::instance();
-        $routes = apply_filters(
-            'EED_Core_Rest_Api__save_ee_route_data_for_version__routes',
-            array_replace_recursive(
-                $instance->_get_config_route_data_for_version($version, $hidden_endpoints),
-                $instance->_get_meta_route_data_for_version($version, $hidden_endpoints),
-                $instance->_get_model_route_data_for_version($version, $hidden_endpoints),
-                $instance->_get_rpc_route_data_for_version($version, $hidden_endpoints)
-            )
-        );
-        $option_name = self::saved_routes_option_names . $version;
-        if (get_option($option_name)) {
-            update_option($option_name, $routes, true);
-        } else {
-            add_option($option_name, $routes, null, 'no');
-        }
-        return $routes;
-    }
-
-
-    /**
-     * Calculates all the EE routes and saves it to a WordPress option so we don't
-     * need to calculate it on every request
-     *
-     * @deprecated since version 4.9.1
-     * @return void
-     */
-    public static function save_ee_routes()
-    {
-        if (EE_Maintenance_Mode::instance()->models_can_query()) {
-            $instance = self::instance();
-            $routes = apply_filters(
-                'EED_Core_Rest_Api__save_ee_routes__routes',
-                array_replace_recursive(
-                    $instance->_register_config_routes(),
-                    $instance->_register_meta_routes(),
-                    $instance->_register_model_routes(),
-                    $instance->_register_rpc_routes()
-                )
-            );
-            update_option(self::saved_routes_option_names, $routes, true);
-        }
-    }
-
-
-    /**
-     * Gets all the route information relating to EE models
-     *
-     * @return array @see get_ee_route_data
-     * @deprecated since version 4.9.1
-     */
-    protected function _register_model_routes()
-    {
-        $model_routes = array();
-        foreach (self::versions_served() as $version => $hidden_endpoint) {
-            $model_routes[ EED_Core_Rest_Api::ee_api_namespace
-                           . $version ] = $this->_get_config_route_data_for_version($version, $hidden_endpoint);
-        }
-        return $model_routes;
-    }
-
-
-    /**
-     * Decides whether or not to add write endpoints for this model.
-     *
-     * Currently, this defaults to exclude all global tables and models
-     * which would allow inserting WP core data (we don't want to duplicate
-     * what WP API does, as it's unnecessary, extra work, and potentially extra bugs)
-     *
-     * @param EEM_Base $model
-     * @return bool
-     */
-    public static function should_have_write_endpoints(EEM_Base $model)
-    {
-        if ($model->is_wp_core_model()) {
-            return false;
-        }
-        foreach ($model->get_tables() as $table) {
-            if ($table->is_global()) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-
-    /**
-     * Gets the names of all models which should have plural routes (eg `ee/v4.8.36/events`)
-     * in this versioned namespace of EE4
-     *
-     * @param $version
-     * @return array keys are model names (eg 'Event') and values ar either classnames (eg 'EEM_Event')
-     */
-    public static function model_names_with_plural_routes($version)
-    {
-        $model_version_info = new ModelVersionInfo($version);
-        $models_to_register = $model_version_info->modelsForRequestedVersion();
-        // let's not bother having endpoints for extra metas
-        unset(
-            $models_to_register['Extra_Meta'],
-            $models_to_register['Extra_Join'],
-            $models_to_register['Post_Meta']
-        );
-        return apply_filters(
-            'FHEE__EED_Core_REST_API___register_model_routes',
-            $models_to_register
-        );
-    }
-
-
-    /**
-     * Gets the route data for EE models in the specified version
-     *
-     * @param string  $version
-     * @param boolean $hidden_endpoint
-     * @return array
-     * @throws EE_Error
-     */
-    protected function _get_model_route_data_for_version($version, $hidden_endpoint = false)
-    {
-        $model_routes = array();
-        $model_version_info = new ModelVersionInfo($version);
-        foreach (EED_Core_Rest_Api::model_names_with_plural_routes($version) as $model_name => $model_classname) {
-            $model = \EE_Registry::instance()->load_model($model_name);
-            // if this isn't a valid model then let's skip iterate to the next item in the loop.
-            if (! $model instanceof EEM_Base) {
-                continue;
-            }
-            // yes we could just register one route for ALL models, but then they wouldn't show up in the index
-            $plural_model_route = EED_Core_Rest_Api::get_collection_route($model);
-            $singular_model_route = EED_Core_Rest_Api::get_entity_route($model, '(?P<id>[^\/]+)');
-            $model_routes[ $plural_model_route ] = array(
-                array(
-                    'callback'        => array(
-                        'EventEspresso\core\libraries\rest_api\controllers\model\Read',
-                        'handleRequestGetAll',
-                    ),
-                    'callback_args'   => array($version, $model_name),
-                    'methods'         => WP_REST_Server::READABLE,
-                    'hidden_endpoint' => $hidden_endpoint,
-                    'args'            => $this->_get_read_query_params($model, $version),
-                    '_links'          => array(
-                        'self' => rest_url(EED_Core_Rest_Api::ee_api_namespace . $version . $singular_model_route),
-                    ),
-                ),
-                'schema' => array(
-                    'schema_callback' => array(
-                        'EventEspresso\core\libraries\rest_api\controllers\model\Read',
-                        'handleSchemaRequest',
-                    ),
-                    'callback_args'   => array($version, $model_name),
-                ),
-            );
-            $model_routes[ $singular_model_route ] = array(
-                array(
-                    'callback'        => array(
-                        'EventEspresso\core\libraries\rest_api\controllers\model\Read',
-                        'handleRequestGetOne',
-                    ),
-                    'callback_args'   => array($version, $model_name),
-                    'methods'         => WP_REST_Server::READABLE,
-                    'hidden_endpoint' => $hidden_endpoint,
-                    'args'            => $this->_get_response_selection_query_params($model, $version, true),
-                ),
-            );
-            if (apply_filters(
-                'FHEE__EED_Core_Rest_Api___get_model_route_data_for_version__add_write_endpoints',
-                EED_Core_Rest_Api::should_have_write_endpoints($model),
-                $model
-            )) {
-                $model_routes[ $plural_model_route ][] = array(
-                    'callback'        => array(
-                        'EventEspresso\core\libraries\rest_api\controllers\model\Write',
-                        'handleRequestInsert',
-                    ),
-                    'callback_args'   => array($version, $model_name),
-                    'methods'         => WP_REST_Server::CREATABLE,
-                    'hidden_endpoint' => $hidden_endpoint,
-                    'args'            => $this->_get_write_params($model_name, $model_version_info, true),
-                );
-                $model_routes[ $singular_model_route ] = array_merge(
-                    $model_routes[ $singular_model_route ],
-                    array(
-                        array(
-                            'callback'        => array(
-                                'EventEspresso\core\libraries\rest_api\controllers\model\Write',
-                                'handleRequestUpdate',
-                            ),
-                            'callback_args'   => array($version, $model_name),
-                            'methods'         => WP_REST_Server::EDITABLE,
-                            'hidden_endpoint' => $hidden_endpoint,
-                            'args'            => $this->_get_write_params($model_name, $model_version_info),
-                        ),
-                        array(
-                            'callback'        => array(
-                                'EventEspresso\core\libraries\rest_api\controllers\model\Write',
-                                'handleRequestDelete',
-                            ),
-                            'callback_args'   => array($version, $model_name),
-                            'methods'         => WP_REST_Server::DELETABLE,
-                            'hidden_endpoint' => $hidden_endpoint,
-                            'args'            => $this->_get_delete_query_params($model, $version),
-                        ),
-                    )
-                );
-            }
-            foreach ($model->relation_settings() as $relation_name => $relation_obj) {
-                $related_route = EED_Core_Rest_Api::get_relation_route_via(
-                    $model,
-                    '(?P<id>[^\/]+)',
-                    $relation_obj
-                );
-                $model_routes[ $related_route ] = array(
-                    array(
-                        'callback'        => array(
-                            'EventEspresso\core\libraries\rest_api\controllers\model\Read',
-                            'handleRequestGetRelated',
-                        ),
-                        'callback_args'   => array($version, $model_name, $relation_name),
-                        'methods'         => WP_REST_Server::READABLE,
-                        'hidden_endpoint' => $hidden_endpoint,
-                        'args'            => $this->_get_read_query_params($relation_obj->get_other_model(), $version),
-                    ),
-                );
-
-                $related_write_route = $related_route . '/' . '(?P<related_id>[^\/]+)';
-                $model_routes[ $related_write_route ] = array(
-                    array(
-                        'callback'        => array(
-                            'EventEspresso\core\libraries\rest_api\controllers\model\Write',
-                            'handleRequestAddRelation',
-                        ),
-                        'callback_args'   => array($version, $model_name, $relation_name),
-                        'methods'         => WP_REST_Server::EDITABLE,
-                        'hidden_endpoint' => $hidden_endpoint,
-                        'args'            => $this->_get_add_relation_query_params($model, $relation_obj->get_other_model(), $version)
-                    ),
-                    array(
-                        'callback'        => array(
-                            'EventEspresso\core\libraries\rest_api\controllers\model\Write',
-                            'handleRequestRemoveRelation',
-                        ),
-                        'callback_args'   => array($version, $model_name, $relation_name),
-                        'methods'         => WP_REST_Server::DELETABLE,
-                        'hidden_endpoint' => $hidden_endpoint,
-                        'args'            => array()
-                    ),
-                );
-            }
-        }
-        return $model_routes;
-    }
-
-
-    /**
-     * Gets the relative URI to a model's REST API plural route, after the EE4 versioned namespace,
-     * excluding the preceding slash.
-     * Eg you pass get_plural_route_to('Event') = 'events'
-     *
-     * @param EEM_Base $model
-     * @return string
-     */
-    public static function get_collection_route(EEM_Base $model)
-    {
-        return EEH_Inflector::pluralize_and_lower($model->get_this_model_name());
-    }
-
-
-    /**
-     * Gets the relative URI to a model's REST API singular route, after the EE4 versioned namespace,
-     * excluding the preceding slash.
-     * Eg you pass get_plural_route_to('Event', 12) = 'events/12'
-     *
-     * @param EEM_Base $model eg Event or Venue
-     * @param string   $id
-     * @return string
-     */
-    public static function get_entity_route($model, $id)
-    {
-        return EED_Core_Rest_Api::get_collection_route($model) . '/' . $id;
-    }
-
-
-    /**
-     * Gets the relative URI to a model's REST API singular route, after the EE4 versioned namespace,
-     * excluding the preceding slash.
-     * Eg you pass get_plural_route_to('Event', 12) = 'events/12'
-     *
-     * @param EEM_Base               $model eg Event or Venue
-     * @param string                 $id
-     * @param EE_Model_Relation_Base $relation_obj
-     * @return string
-     */
-    public static function get_relation_route_via(EEM_Base $model, $id, EE_Model_Relation_Base $relation_obj)
-    {
-        $related_model_name_endpoint_part = ModelRead::getRelatedEntityName(
-            $relation_obj->get_other_model()->get_this_model_name(),
-            $relation_obj
-        );
-        return EED_Core_Rest_Api::get_entity_route($model, $id) . '/' . $related_model_name_endpoint_part;
-    }
-
-
-    /**
-     * Adds onto the $relative_route the EE4 REST API versioned namespace.
-     * Eg if given '4.8.36' and 'events', will return 'ee/v4.8.36/events'
-     *
-     * @param string $relative_route
-     * @param string $version
-     * @return string
-     */
-    public static function get_versioned_route_to($relative_route, $version = '4.8.36')
-    {
-        return '/' . EED_Core_Rest_Api::ee_api_namespace . $version . '/' . $relative_route;
-    }
-
-
-    /**
-     * Adds all the RPC-style routes (remote procedure call-like routes, ie
-     * routes that don't conform to the traditional REST CRUD-style).
-     *
-     * @deprecated since 4.9.1
-     */
-    protected function _register_rpc_routes()
-    {
-        $routes = array();
-        foreach (self::versions_served() as $version => $hidden_endpoint) {
-            $routes[ self::ee_api_namespace . $version ] = $this->_get_rpc_route_data_for_version(
-                $version,
-                $hidden_endpoint
-            );
-        }
-        return $routes;
-    }
-
-
-    /**
-     * @param string  $version
-     * @param boolean $hidden_endpoint
-     * @return array
-     */
-    protected function _get_rpc_route_data_for_version($version, $hidden_endpoint = false)
-    {
-        $this_versions_routes = array();
-        // checkin endpoint
-        $this_versions_routes['registrations/(?P<REG_ID>\d+)/toggle_checkin_for_datetime/(?P<DTT_ID>\d+)'] = array(
-            array(
-                'callback'        => array(
-                    'EventEspresso\core\libraries\rest_api\controllers\rpc\Checkin',
-                    'handleRequestToggleCheckin',
-                ),
-                'methods'         => WP_REST_Server::CREATABLE,
-                'hidden_endpoint' => $hidden_endpoint,
-                'args'            => array(
-                    'force' => array(
-                        'required'    => false,
-                        'default'     => false,
-                        'description' => __(
-                        // @codingStandardsIgnoreStart
-                            'Whether to force toggle checkin, or to verify the registration status and allowed ticket uses',
-                            // @codingStandardsIgnoreEnd
-                            'event_espresso'
-                        ),
-                    ),
-                ),
-                'callback_args'   => array($version),
-            ),
-        );
-        return apply_filters(
-            'FHEE__EED_Core_Rest_Api___register_rpc_routes__this_versions_routes',
-            $this_versions_routes,
-            $version,
-            $hidden_endpoint
-        );
-    }
-
-
-    /**
-     * Gets the query params that can be used when request one or many
-     *
-     * @param EEM_Base $model
-     * @param string   $version
-     * @return array
-     */
-    protected function _get_response_selection_query_params(\EEM_Base $model, $version, $single_only = false)
-    {
-        $query_params = array(
-            'include'   => array(
-                'required' => false,
-                'default'  => '*',
-                'type'     => 'string',
-            ),
-            'calculate' => array(
-                'required'          => false,
-                'default'           => '',
-                'enum'              => self::$_field_calculator->retrieveCalculatedFieldsForModel($model),
-                'type'              => 'string',
-                // because we accept a CSV'd list of the enumerated strings, WP core validation and sanitization
-                // freaks out. We'll just validate this argument while handling the request
-                'validate_callback' => null,
-                'sanitize_callback' => null,
-            ),
-            'password' => array(
-                'required' => false,
-                'default' => '',
-                'type' => 'string'
-            )
-        );
-        return apply_filters(
-            'FHEE__EED_Core_Rest_Api___get_response_selection_query_params',
-            $query_params,
-            $model,
-            $version
-        );
-    }
-
-
-    /**
-     * Gets the parameters acceptable for delete requests
-     *
-     * @param \EEM_Base $model
-     * @param string    $version
-     * @return array
-     */
-    protected function _get_delete_query_params(\EEM_Base $model, $version)
-    {
-        $params_for_delete = array(
-            'allow_blocking' => array(
-                'required' => false,
-                'default'  => true,
-                'type'     => 'boolean',
-            ),
-        );
-        $params_for_delete['force'] = array(
-            'required' => false,
-            'default'  => false,
-            'type'     => 'boolean',
-        );
-        return apply_filters(
-            'FHEE__EED_Core_Rest_Api___get_delete_query_params',
-            $params_for_delete,
-            $model,
-            $version
-        );
-    }
-
-    protected function _get_add_relation_query_params(\EEM_Base $source_model, \EEM_Base $related_model, $version)
-    {
-        // if they're related through a HABTM relation, check for any non-FKs
-        $all_relation_settings = $source_model->relation_settings();
-        $relation_settings = $all_relation_settings[ $related_model->get_this_model_name() ];
-        $params = array();
-        if ($relation_settings instanceof EE_HABTM_Relation && $relation_settings->hasNonKeyFields()) {
-            foreach ($relation_settings->getNonKeyFields() as $field) {
-                /* @var $field EE_Model_Field_Base */
-                $params[ $field->get_name() ] = array(
-                    'required' => ! $field->is_nullable(),
-                    'default' => ModelDataTranslator::prepareFieldValueForJson($field, $field->get_default_value(), $version),
-                    'type' => $field->getSchemaType(),
-                    'validate_callbaack' => null,
-                    'sanitize_callback' => null
-                );
-            }
-        }
-        return $params;
-    }
-
-
-    /**
-     * Gets info about reading query params that are acceptable
-     *
-     * @param \EEM_Base $model eg 'Event' or 'Venue'
-     * @param  string   $version
-     * @return array    describing the args acceptable when querying this model
-     * @throws EE_Error
-     */
-    protected function _get_read_query_params(\EEM_Base $model, $version)
-    {
-        $default_orderby = array();
-        foreach ($model->get_combined_primary_key_fields() as $key_field) {
-            $default_orderby[ $key_field->get_name() ] = 'ASC';
-        }
-        return array_merge(
-            $this->_get_response_selection_query_params($model, $version),
-            array(
-                'where'    => array(
-                    'required'          => false,
-                    'default'           => array(),
-                    'type'              => 'object',
-                    // because we accept an almost infinite list of possible where conditions, WP
-                    // core validation and sanitization freaks out. We'll just validate this argument
-                    // while handling the request
-                    'validate_callback' => null,
-                    'sanitize_callback' => null,
-                ),
-                'limit'    => array(
-                    'required'          => false,
-                    'default'           => EED_Core_Rest_Api::get_default_query_limit(),
-                    'type'              => array(
-                        'array',
-                        'string',
-                        'integer',
-                    ),
-                    // because we accept a variety of types, WP core validation and sanitization
-                    // freaks out. We'll just validate this argument while handling the request
-                    'validate_callback' => null,
-                    'sanitize_callback' => null,
-                ),
-                'order_by' => array(
-                    'required'          => false,
-                    'default'           => $default_orderby,
-                    'type'              => array(
-                        'object',
-                        'string',
-                    ),// because we accept a variety of types, WP core validation and sanitization
-                    // freaks out. We'll just validate this argument while handling the request
-                    'validate_callback' => null,
-                    'sanitize_callback' => null,
-                ),
-                'group_by' => array(
-                    'required'          => false,
-                    'default'           => null,
-                    'type'              => array(
-                        'object',
-                        'string',
-                    ),
-                    // because we accept  an almost infinite list of possible groupings,
-                    // WP core validation and sanitization
-                    // freaks out. We'll just validate this argument while handling the request
-                    'validate_callback' => null,
-                    'sanitize_callback' => null,
-                ),
-                'having'   => array(
-                    'required'          => false,
-                    'default'           => null,
-                    'type'              => 'object',
-                    // because we accept an almost infinite list of possible where conditions, WP
-                    // core validation and sanitization freaks out. We'll just validate this argument
-                    // while handling the request
-                    'validate_callback' => null,
-                    'sanitize_callback' => null,
-                ),
-                'caps'     => array(
-                    'required' => false,
-                    'default'  => EEM_Base::caps_read,
-                    'type'     => 'string',
-                    'enum'     => array(
-                        EEM_Base::caps_read,
-                        EEM_Base::caps_read_admin,
-                        EEM_Base::caps_edit,
-                        EEM_Base::caps_delete,
-                    ),
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * Gets parameter information for a model regarding writing data
-     *
-     * @param string           $model_name
-     * @param ModelVersionInfo $model_version_info
-     * @param boolean          $create                                       whether this is for request to create (in
-     *                                                                       which case we need all required params) or
-     *                                                                       just to update (in which case we don't
-     *                                                                       need those on every request)
-     * @return array
-     */
-    protected function _get_write_params(
-        $model_name,
-        ModelVersionInfo $model_version_info,
-        $create = false
-    ) {
-        $model = EE_Registry::instance()->load_model($model_name);
-        $fields = $model_version_info->fieldsOnModelInThisVersion($model);
-        $args_info = array();
-        foreach ($fields as $field_name => $field_obj) {
-            if ($field_obj->is_auto_increment()) {
-                // totally ignore auto increment IDs
-                continue;
-            }
-            $arg_info = $field_obj->getSchema();
-            $required = $create && ! $field_obj->is_nullable() && $field_obj->get_default_value() === null;
-            $arg_info['required'] = $required;
-            // remove the read-only flag. If it were read-only we wouldn't list it as an argument while writing, right?
-            unset($arg_info['readonly']);
-            $schema_properties = $field_obj->getSchemaProperties();
-            if (isset($schema_properties['raw'])
-                && $field_obj->getSchemaType() === 'object'
-            ) {
-                // if there's a "raw" form of this argument, use those properties instead
-                $arg_info = array_replace(
-                    $arg_info,
-                    $schema_properties['raw']
-                );
-            }
-            $arg_info['default'] = ModelDataTranslator::prepareFieldValueForJson(
-                $field_obj,
-                $field_obj->get_default_value(),
-                $model_version_info->requestedVersion()
-            );
-            // we do our own validation and sanitization within the controller
-            if (function_exists('rest_validate_value_from_schema')) {
-                $sanitize_callback = array(
-                    'EED_Core_Rest_Api',
-                    'default_sanitize_callback',
-                );
-            } else {
-                $sanitize_callback = null;
-            }
-            $arg_info['sanitize_callback'] = $sanitize_callback;
-            $args_info[ $field_name ] = $arg_info;
-            if ($field_obj instanceof EE_Datetime_Field) {
-                $gmt_arg_info = $arg_info;
-                $gmt_arg_info['description'] = sprintf(
-                    esc_html__(
-                        '%1$s - the value for this field in UTC. Ignored if %2$s is provided.',
-                        'event_espresso'
-                    ),
-                    $field_obj->get_nicename(),
-                    $field_name
-                );
-                $args_info[ $field_name . '_gmt' ] = $gmt_arg_info;
-            }
-        }
-        return $args_info;
-    }
-
-
-    /**
-     * Replacement for WP API's 'rest_parse_request_arg'.
-     * If the value is blank but not required, don't bother validating it.
-     * Also, it uses our email validation instead of WP API's default.
-     *
-     * @param                 $value
-     * @param WP_REST_Request $request
-     * @param                 $param
-     * @return bool|true|WP_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    public static function default_sanitize_callback($value, WP_REST_Request $request, $param)
-    {
-        $attributes = $request->get_attributes();
-        if (! isset($attributes['args'][ $param ])
-            || ! is_array($attributes['args'][ $param ])) {
-            $validation_result = true;
-        } else {
-            $args = $attributes['args'][ $param ];
-            if ((
-                    $value === ''
-                    || $value === null
-                )
-                && (! isset($args['required'])
-                    || $args['required'] === false
-                )
-            ) {
-                // not required and not provided? that's cool
-                $validation_result = true;
-            } elseif (isset($args['format'])
-                      && $args['format'] === 'email'
-            ) {
-                $validation_result = true;
-                if (! self::_validate_email($value)) {
-                    $validation_result = new WP_Error(
-                        'rest_invalid_param',
-                        esc_html__(
-                            'The email address is not valid or does not exist.',
-                            'event_espresso'
-                        )
-                    );
-                }
-            } else {
-                $validation_result = rest_validate_value_from_schema($value, $args, $param);
-            }
-        }
-        if (is_wp_error($validation_result)) {
-            return $validation_result;
-        }
-        return rest_sanitize_request_arg($value, $request, $param);
-    }
-
-
-    /**
-     * Returns whether or not this email address is valid. Copied from EE_Email_Validation_Strategy::_validate_email()
-     *
-     * @param $email
-     * @return bool
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    protected static function _validate_email($email)
-    {
-        try {
-            EmailAddressFactory::create($email);
-            return true;
-        } catch (EmailValidationException $e) {
-            return false;
-        }
-    }
-
-
-    /**
-     * Gets routes for the config
-     *
-     * @return array @see _register_model_routes
-     * @deprecated since version 4.9.1
-     */
-    protected function _register_config_routes()
-    {
-        $config_routes = array();
-        foreach (self::versions_served() as $version => $hidden_endpoint) {
-            $config_routes[ self::ee_api_namespace . $version ] = $this->_get_config_route_data_for_version(
-                $version,
-                $hidden_endpoint
-            );
-        }
-        return $config_routes;
-    }
-
-
-    /**
-     * Gets routes for the config for the specified version
-     *
-     * @param string  $version
-     * @param boolean $hidden_endpoint
-     * @return array
-     */
-    protected function _get_config_route_data_for_version($version, $hidden_endpoint)
-    {
-        return array(
-            'config'    => array(
-                array(
-                    'callback'        => array(
-                        'EventEspresso\core\libraries\rest_api\controllers\config\Read',
-                        'handleRequest',
-                    ),
-                    'methods'         => WP_REST_Server::READABLE,
-                    'hidden_endpoint' => $hidden_endpoint,
-                    'callback_args'   => array($version),
-                ),
-            ),
-            'site_info' => array(
-                array(
-                    'callback'        => array(
-                        'EventEspresso\core\libraries\rest_api\controllers\config\Read',
-                        'handleRequestSiteInfo',
-                    ),
-                    'methods'         => WP_REST_Server::READABLE,
-                    'hidden_endpoint' => $hidden_endpoint,
-                    'callback_args'   => array($version),
-                ),
-            ),
-        );
-    }
-
-
-    /**
-     * Gets the meta info routes
-     *
-     * @return array @see _register_model_routes
-     * @deprecated since version 4.9.1
-     */
-    protected function _register_meta_routes()
-    {
-        $meta_routes = array();
-        foreach (self::versions_served() as $version => $hidden_endpoint) {
-            $meta_routes[ self::ee_api_namespace . $version ] = $this->_get_meta_route_data_for_version(
-                $version,
-                $hidden_endpoint
-            );
-        }
-        return $meta_routes;
-    }
-
-
-    /**
-     * @param string  $version
-     * @param boolean $hidden_endpoint
-     * @return array
-     */
-    protected function _get_meta_route_data_for_version($version, $hidden_endpoint = false)
-    {
-        return array(
-            'resources' => array(
-                array(
-                    'callback'        => array(
-                        'EventEspresso\core\libraries\rest_api\controllers\model\Meta',
-                        'handleRequestModelsMeta',
-                    ),
-                    'methods'         => WP_REST_Server::READABLE,
-                    'hidden_endpoint' => $hidden_endpoint,
-                    'callback_args'   => array($version),
-                ),
-            ),
-        );
-    }
-
-
-    /**
-     * Tries to hide old 4.6 endpoints from the
-     *
-     * @param array $route_data
-     * @return array
-     * @throws \EE_Error
-     */
-    public static function hide_old_endpoints($route_data)
-    {
-        // allow API clients to override which endpoints get hidden, in case
-        // they want to discover particular endpoints
-        // also, we don't have access to the request so we have to just grab it from the superglobal
-        $force_show_ee_namespace = ltrim(
-            EEH_Array::is_set($_REQUEST, 'force_show_ee_namespace', ''),
-            '/'
-        );
-        foreach (EED_Core_Rest_Api::get_ee_route_data() as $namespace => $relative_urls) {
-            foreach ($relative_urls as $resource_name => $endpoints) {
-                foreach ($endpoints as $key => $endpoint) {
-                    // skip schema and other route options
-                    if (! is_numeric($key)) {
-                        continue;
-                    }
-                    // by default, hide "hidden_endpoint"s, unless the request indicates
-                    // to $force_show_ee_namespace, in which case only show that one
-                    // namespace's endpoints (and hide all others)
-                    if (($force_show_ee_namespace !== '' && $force_show_ee_namespace !== $namespace)
-                        || ($endpoint['hidden_endpoint'] && $force_show_ee_namespace === '')
-                    ) {
-                        $full_route = '/' . ltrim($namespace, '/');
-                        $full_route .= '/' . ltrim($resource_name, '/');
-                        unset($route_data[ $full_route ]);
-                    }
-                }
-            }
-        }
-        return $route_data;
-    }
-
-
-    /**
-     * Returns an array describing which versions of core support serving requests for.
-     * Keys are core versions' major and minor version, and values are the
-     * LOWEST requested version they can serve. Eg, 4.7 can serve requests for 4.6-like
-     * data by just removing a few models and fields from the responses. However, 4.15 might remove
-     * the answers table entirely, in which case it would be very difficult for
-     * it to serve 4.6-style responses.
-     * Versions of core that are missing from this array are unknowns.
-     * previous ver
-     *
-     * @return array
-     */
-    public static function version_compatibilities()
-    {
-        return apply_filters(
-            'FHEE__EED_Core_REST_API__version_compatibilities',
-            array(
-                '4.8.29' => '4.8.29',
-                '4.8.33' => '4.8.29',
-                '4.8.34' => '4.8.29',
-                '4.8.36' => '4.8.29',
-            )
-        );
-    }
-
-
-    /**
-     * Gets the latest API version served. Eg if there
-     * are two versions served of the API, 4.8.29 and 4.8.32, and
-     * we are on core version 4.8.34, it will return the string "4.8.32"
-     *
-     * @return string
-     */
-    public static function latest_rest_api_version()
-    {
-        $versions_served = \EED_Core_Rest_Api::versions_served();
-        $versions_served_keys = array_keys($versions_served);
-        return end($versions_served_keys);
-    }
-
-
-    /**
-     * Using EED_Core_Rest_Api::version_compatibilities(), determines what version of
-     * EE the API can serve requests for. Eg, if we are on 4.15 of core, and
-     * we can serve requests from 4.12 or later, this will return array( '4.12', '4.13', '4.14', '4.15' ).
-     * We also indicate whether or not this version should be put in the index or not
-     *
-     * @return array keys are API version numbers (just major and minor numbers), and values
-     * are whether or not they should be hidden
-     */
-    public static function versions_served()
-    {
-        $versions_served = array();
-        $possibly_served_versions = EED_Core_Rest_Api::version_compatibilities();
-        $lowest_compatible_version = end($possibly_served_versions);
-        reset($possibly_served_versions);
-        $versions_served_historically = array_keys($possibly_served_versions);
-        $latest_version = end($versions_served_historically);
-        reset($versions_served_historically);
-        // for each version of core we have ever served:
-        foreach ($versions_served_historically as $key_versioned_endpoint) {
-            // if it's not above the current core version, and it's compatible with the current version of core
-            if ($key_versioned_endpoint === $latest_version) {
-                // don't hide the latest version in the index
-                $versions_served[ $key_versioned_endpoint ] = false;
-            } elseif ($key_versioned_endpoint >= $lowest_compatible_version
-                && $key_versioned_endpoint < EED_Core_Rest_Api::core_version()
-            ) {
-                // include, but hide, previous versions which are still supported
-                $versions_served[ $key_versioned_endpoint ] = true;
-            } elseif (apply_filters(
-                'FHEE__EED_Core_Rest_Api__versions_served__include_incompatible_versions',
-                false,
-                $possibly_served_versions
-            )) {
-                // if a version is no longer supported, don't include it in index or list of versions served
-                $versions_served[ $key_versioned_endpoint ] = true;
-            }
-        }
-        return $versions_served;
-    }
-
-
-    /**
-     * Gets the major and minor version of EE core's version string
-     *
-     * @return string
-     */
-    public static function core_version()
-    {
-        return apply_filters(
-            'FHEE__EED_Core_REST_API__core_version',
-            implode(
-                '.',
-                array_slice(
-                    explode(
-                        '.',
-                        espresso_version()
-                    ),
-                    0,
-                    3
-                )
-            )
-        );
-    }
-
-
-    /**
-     * Gets the default limit that should be used when querying for resources
-     *
-     * @return int
-     */
-    public static function get_default_query_limit()
-    {
-        // we actually don't use a const because we want folks to always use
-        // this method, not the const directly
-        return apply_filters(
-            'FHEE__EED_Core_Rest_Api__get_default_query_limit',
-            50
-        );
-    }
-
-
-    /**
-     *
-     * @param string $version api version string (i.e. '4.8.36')
-     * @return array
-     */
-    public static function getCollectionRoutesIndexedByModelName($version = '')
-    {
-        $version = empty($version) ? self::latest_rest_api_version() : $version;
-        $model_names = self::model_names_with_plural_routes($version);
-        $collection_routes = array();
-        foreach ($model_names as $model_name => $model_class_name) {
-            $collection_routes[ strtolower($model_name) ] = '/' . self::ee_api_namespace . $version . '/'
-                                                            . EEH_Inflector::pluralize_and_lower($model_name);
-        }
-        return $collection_routes;
-    }
-
-
-    /**
-     * Returns an array of primary key names indexed by model names.
-     * @param string $version
-     * @return array
-     */
-    public static function getPrimaryKeyNamesIndexedByModelName($version = '')
-    {
-        $version = empty($version) ? self::latest_rest_api_version() : $version;
-        $model_names = self::model_names_with_plural_routes($version);
-        $primary_key_items = array();
-        foreach ($model_names as $model_name => $model_class_name) {
-            $primary_keys = $model_class_name::instance()->get_combined_primary_key_fields();
-            foreach ($primary_keys as $primary_key_name => $primary_key_field) {
-                if (count($primary_keys) > 1) {
-                    $primary_key_items[ strtolower($model_name) ][] = $primary_key_name;
-                } else {
-                    $primary_key_items[ strtolower($model_name) ] = $primary_key_name;
-                }
-            }
-        }
-        return $primary_key_items;
-    }
-
-    /**
-     * Determines the EE REST API debug mode is activated, or not.
-     * @since 4.9.76.p
-     * @return bool
-     */
-    public static function debugMode()
-    {
-        static $debug_mode = null; // could be class prop
-        if ($debug_mode === null) {
-            $debug_mode = defined('EE_REST_API_DEBUG_MODE') && EE_REST_API_DEBUG_MODE;
-        }
-        return $debug_mode;
-    }
-
-
-
-    /**
-     *    run - initial module setup
-     *
-     * @access    public
-     * @param  WP $WP
-     * @return    void
-     */
-    public function run($WP)
-    {
-    }
+	const ee_api_namespace = Domain::API_NAMESPACE;
+
+	const ee_api_namespace_for_regex = 'ee\/v([^/]*)\/';
+
+	const saved_routes_option_names = 'ee_core_routes';
+
+	/**
+	 * string used in _links response bodies to make them globally unique.
+	 *
+	 * @see http://v2.wp-api.org/extending/linking/
+	 */
+	const ee_api_link_namespace = 'https://api.eventespresso.com/';
+
+	/**
+	 * @var CalculatedModelFields
+	 */
+	protected static $_field_calculator;
+
+
+	/**
+	 * @return EED_Core_Rest_Api|EED_Module
+	 */
+	public static function instance()
+	{
+		self::$_field_calculator = LoaderFactory::getLoader()->load('EventEspresso\core\libraries\rest_api\CalculatedModelFields');
+		return parent::get_instance(__CLASS__);
+	}
+
+
+	/**
+	 *    set_hooks - for hooking into EE Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function set_hooks()
+	{
+		self::set_hooks_both();
+	}
+
+
+	/**
+	 *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function set_hooks_admin()
+	{
+		self::set_hooks_both();
+	}
+
+
+	public static function set_hooks_both()
+	{
+		add_action('rest_api_init', array('EED_Core_Rest_Api', 'register_routes'), 10);
+		add_action('rest_api_init', array('EED_Core_Rest_Api', 'set_hooks_rest_api'), 5);
+		add_filter('rest_route_data', array('EED_Core_Rest_Api', 'hide_old_endpoints'), 10, 2);
+		add_filter(
+			'rest_index',
+			array('EventEspresso\core\libraries\rest_api\controllers\model\Meta', 'filterEeMetadataIntoIndex')
+		);
+		EED_Core_Rest_Api::invalidate_cached_route_data_on_version_change();
+	}
+
+
+	/**
+	 * sets up hooks which only need to be included as part of REST API requests;
+	 * other requests like to the frontend or admin etc don't need them
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function set_hooks_rest_api()
+	{
+		// set hooks which account for changes made to the API
+		EED_Core_Rest_Api::_set_hooks_for_changes();
+	}
+
+
+	/**
+	 * public wrapper of _set_hooks_for_changes.
+	 * Loads all the hooks which make requests to old versions of the API
+	 * appear the same as they always did
+	 *
+	 * @throws EE_Error
+	 */
+	public static function set_hooks_for_changes()
+	{
+		self::_set_hooks_for_changes();
+	}
+
+
+	/**
+	 * Loads all the hooks which make requests to old versions of the API
+	 * appear the same as they always did
+	 *
+	 * @throws EE_Error
+	 */
+	protected static function _set_hooks_for_changes()
+	{
+		$folder_contents = EEH_File::get_contents_of_folders(array(EE_LIBRARIES . 'rest_api' . DS . 'changes'), false);
+		foreach ($folder_contents as $classname_in_namespace => $filepath) {
+			// ignore the base parent class
+			// and legacy named classes
+			if ($classname_in_namespace === 'ChangesInBase'
+				|| strpos($classname_in_namespace, 'Changes_In_') === 0
+			) {
+				continue;
+			}
+			$full_classname = 'EventEspresso\core\libraries\rest_api\changes\\' . $classname_in_namespace;
+			if (class_exists($full_classname)) {
+				$instance_of_class = new $full_classname;
+				if ($instance_of_class instanceof ChangesInBase) {
+					$instance_of_class->setHooks();
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * Filters the WP routes to add our EE-related ones. This takes a bit of time
+	 * so we actually prefer to only do it when an EE plugin is activated or upgraded
+	 *
+	 * @throws \EE_Error
+	 */
+	public static function register_routes()
+	{
+		foreach (EED_Core_Rest_Api::get_ee_route_data() as $namespace => $relative_routes) {
+			foreach ($relative_routes as $relative_route => $data_for_multiple_endpoints) {
+				/**
+				 * @var array     $data_for_multiple_endpoints numerically indexed array
+				 *                                         but can also contain route options like {
+				 * @type array    $schema                      {
+				 * @type callable $schema_callback
+				 * @type array    $callback_args               arguments that will be passed to the callback, after the
+				 * WP_REST_Request of course
+				 * }
+				 * }
+				 */
+				// when registering routes, register all the endpoints' data at the same time
+				$multiple_endpoint_args = array();
+				foreach ($data_for_multiple_endpoints as $endpoint_key => $data_for_single_endpoint) {
+					/**
+					 * @var array     $data_for_single_endpoint {
+					 * @type callable $callback
+					 * @type string methods
+					 * @type array args
+					 * @type array _links
+					 * @type array    $callback_args            arguments that will be passed to the callback, after the
+					 * WP_REST_Request of course
+					 * }
+					 */
+					// skip route options
+					if (! is_numeric($endpoint_key)) {
+						continue;
+					}
+					if (! isset($data_for_single_endpoint['callback'], $data_for_single_endpoint['methods'])) {
+						throw new EE_Error(
+							esc_html__(
+							// @codingStandardsIgnoreStart
+								'Endpoint configuration data needs to have entries "callback" (callable) and "methods" (comma-separated list of accepts HTTP methods).',
+								// @codingStandardsIgnoreEnd
+								'event_espresso'
+							)
+						);
+					}
+					$callback = $data_for_single_endpoint['callback'];
+					$single_endpoint_args = array(
+						'methods' => $data_for_single_endpoint['methods'],
+						'args'    => isset($data_for_single_endpoint['args']) ? $data_for_single_endpoint['args']
+							: array(),
+					);
+					if (isset($data_for_single_endpoint['_links'])) {
+						$single_endpoint_args['_links'] = $data_for_single_endpoint['_links'];
+					}
+					if (isset($data_for_single_endpoint['callback_args'])) {
+						$callback_args = $data_for_single_endpoint['callback_args'];
+						$single_endpoint_args['callback'] = function (\WP_REST_Request $request) use (
+							$callback,
+							$callback_args
+						) {
+							array_unshift($callback_args, $request);
+							return call_user_func_array(
+								$callback,
+								$callback_args
+							);
+						};
+					} else {
+						$single_endpoint_args['callback'] = $data_for_single_endpoint['callback'];
+					}
+					$multiple_endpoint_args[] = $single_endpoint_args;
+				}
+				if (isset($data_for_multiple_endpoints['schema'])) {
+					$schema_route_data = $data_for_multiple_endpoints['schema'];
+					$schema_callback = $schema_route_data['schema_callback'];
+					$callback_args = $schema_route_data['callback_args'];
+					$multiple_endpoint_args['schema'] = function () use ($schema_callback, $callback_args) {
+						return call_user_func_array(
+							$schema_callback,
+							$callback_args
+						);
+					};
+				}
+				register_rest_route(
+					$namespace,
+					$relative_route,
+					$multiple_endpoint_args
+				);
+			}
+		}
+	}
+
+
+	/**
+	 * Checks if there was a version change or something that merits invalidating the cached
+	 * route data. If so, invalidates the cached route data so that it gets refreshed
+	 * next time the WP API is used
+	 */
+	public static function invalidate_cached_route_data_on_version_change()
+	{
+		if (EE_System::instance()->detect_req_type() !== EE_System::req_type_normal) {
+			EED_Core_Rest_Api::invalidate_cached_route_data();
+		}
+		foreach (EE_Registry::instance()->addons as $addon) {
+			if ($addon instanceof EE_Addon && $addon->detect_req_type() !== EE_System::req_type_normal) {
+				EED_Core_Rest_Api::invalidate_cached_route_data();
+			}
+		}
+	}
+
+
+	/**
+	 * Removes the cached route data so it will get refreshed next time the WP API is used
+	 */
+	public static function invalidate_cached_route_data()
+	{
+		// delete the saved EE REST API routes
+		foreach (EED_Core_Rest_Api::versions_served() as $version => $hidden) {
+			delete_option(EED_Core_Rest_Api::saved_routes_option_names . $version);
+		}
+	}
+
+
+	/**
+	 * Gets the EE route data
+	 *
+	 * @return array top-level key is the namespace, next-level key is the route and its value is array{
+	 * @throws \EE_Error
+	 * @type string|array $callback
+	 * @type string       $methods
+	 * @type boolean      $hidden_endpoint
+	 * }
+	 */
+	public static function get_ee_route_data()
+	{
+		$ee_routes = array();
+		foreach (self::versions_served() as $version => $hidden_endpoints) {
+			$ee_routes[ self::ee_api_namespace . $version ] = self::_get_ee_route_data_for_version(
+				$version,
+				$hidden_endpoints
+			);
+		}
+		return $ee_routes;
+	}
+
+
+	/**
+	 * Gets the EE route data from the wp options if it exists already,
+	 * otherwise re-generates it and saves it to the option
+	 *
+	 * @param string  $version
+	 * @param boolean $hidden_endpoints
+	 * @return array
+	 * @throws \EE_Error
+	 */
+	protected static function _get_ee_route_data_for_version($version, $hidden_endpoints = false)
+	{
+		$ee_routes = get_option(self::saved_routes_option_names . $version, null);
+		if (! $ee_routes || EED_Core_Rest_Api::debugMode()) {
+			$ee_routes = self::_save_ee_route_data_for_version($version, $hidden_endpoints);
+		}
+		return $ee_routes;
+	}
+
+
+	/**
+	 * Saves the EE REST API route data to a wp option and returns it
+	 *
+	 * @param string  $version
+	 * @param boolean $hidden_endpoints
+	 * @return mixed|null
+	 * @throws \EE_Error
+	 */
+	protected static function _save_ee_route_data_for_version($version, $hidden_endpoints = false)
+	{
+		$instance = self::instance();
+		$routes = apply_filters(
+			'EED_Core_Rest_Api__save_ee_route_data_for_version__routes',
+			array_replace_recursive(
+				$instance->_get_config_route_data_for_version($version, $hidden_endpoints),
+				$instance->_get_meta_route_data_for_version($version, $hidden_endpoints),
+				$instance->_get_model_route_data_for_version($version, $hidden_endpoints),
+				$instance->_get_rpc_route_data_for_version($version, $hidden_endpoints)
+			)
+		);
+		$option_name = self::saved_routes_option_names . $version;
+		if (get_option($option_name)) {
+			update_option($option_name, $routes, true);
+		} else {
+			add_option($option_name, $routes, null, 'no');
+		}
+		return $routes;
+	}
+
+
+	/**
+	 * Calculates all the EE routes and saves it to a WordPress option so we don't
+	 * need to calculate it on every request
+	 *
+	 * @deprecated since version 4.9.1
+	 * @return void
+	 */
+	public static function save_ee_routes()
+	{
+		if (EE_Maintenance_Mode::instance()->models_can_query()) {
+			$instance = self::instance();
+			$routes = apply_filters(
+				'EED_Core_Rest_Api__save_ee_routes__routes',
+				array_replace_recursive(
+					$instance->_register_config_routes(),
+					$instance->_register_meta_routes(),
+					$instance->_register_model_routes(),
+					$instance->_register_rpc_routes()
+				)
+			);
+			update_option(self::saved_routes_option_names, $routes, true);
+		}
+	}
+
+
+	/**
+	 * Gets all the route information relating to EE models
+	 *
+	 * @return array @see get_ee_route_data
+	 * @deprecated since version 4.9.1
+	 */
+	protected function _register_model_routes()
+	{
+		$model_routes = array();
+		foreach (self::versions_served() as $version => $hidden_endpoint) {
+			$model_routes[ EED_Core_Rest_Api::ee_api_namespace
+						   . $version ] = $this->_get_config_route_data_for_version($version, $hidden_endpoint);
+		}
+		return $model_routes;
+	}
+
+
+	/**
+	 * Decides whether or not to add write endpoints for this model.
+	 *
+	 * Currently, this defaults to exclude all global tables and models
+	 * which would allow inserting WP core data (we don't want to duplicate
+	 * what WP API does, as it's unnecessary, extra work, and potentially extra bugs)
+	 *
+	 * @param EEM_Base $model
+	 * @return bool
+	 */
+	public static function should_have_write_endpoints(EEM_Base $model)
+	{
+		if ($model->is_wp_core_model()) {
+			return false;
+		}
+		foreach ($model->get_tables() as $table) {
+			if ($table->is_global()) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+
+	/**
+	 * Gets the names of all models which should have plural routes (eg `ee/v4.8.36/events`)
+	 * in this versioned namespace of EE4
+	 *
+	 * @param $version
+	 * @return array keys are model names (eg 'Event') and values ar either classnames (eg 'EEM_Event')
+	 */
+	public static function model_names_with_plural_routes($version)
+	{
+		$model_version_info = new ModelVersionInfo($version);
+		$models_to_register = $model_version_info->modelsForRequestedVersion();
+		// let's not bother having endpoints for extra metas
+		unset(
+			$models_to_register['Extra_Meta'],
+			$models_to_register['Extra_Join'],
+			$models_to_register['Post_Meta']
+		);
+		return apply_filters(
+			'FHEE__EED_Core_REST_API___register_model_routes',
+			$models_to_register
+		);
+	}
+
+
+	/**
+	 * Gets the route data for EE models in the specified version
+	 *
+	 * @param string  $version
+	 * @param boolean $hidden_endpoint
+	 * @return array
+	 * @throws EE_Error
+	 */
+	protected function _get_model_route_data_for_version($version, $hidden_endpoint = false)
+	{
+		$model_routes = array();
+		$model_version_info = new ModelVersionInfo($version);
+		foreach (EED_Core_Rest_Api::model_names_with_plural_routes($version) as $model_name => $model_classname) {
+			$model = \EE_Registry::instance()->load_model($model_name);
+			// if this isn't a valid model then let's skip iterate to the next item in the loop.
+			if (! $model instanceof EEM_Base) {
+				continue;
+			}
+			// yes we could just register one route for ALL models, but then they wouldn't show up in the index
+			$plural_model_route = EED_Core_Rest_Api::get_collection_route($model);
+			$singular_model_route = EED_Core_Rest_Api::get_entity_route($model, '(?P<id>[^\/]+)');
+			$model_routes[ $plural_model_route ] = array(
+				array(
+					'callback'        => array(
+						'EventEspresso\core\libraries\rest_api\controllers\model\Read',
+						'handleRequestGetAll',
+					),
+					'callback_args'   => array($version, $model_name),
+					'methods'         => WP_REST_Server::READABLE,
+					'hidden_endpoint' => $hidden_endpoint,
+					'args'            => $this->_get_read_query_params($model, $version),
+					'_links'          => array(
+						'self' => rest_url(EED_Core_Rest_Api::ee_api_namespace . $version . $singular_model_route),
+					),
+				),
+				'schema' => array(
+					'schema_callback' => array(
+						'EventEspresso\core\libraries\rest_api\controllers\model\Read',
+						'handleSchemaRequest',
+					),
+					'callback_args'   => array($version, $model_name),
+				),
+			);
+			$model_routes[ $singular_model_route ] = array(
+				array(
+					'callback'        => array(
+						'EventEspresso\core\libraries\rest_api\controllers\model\Read',
+						'handleRequestGetOne',
+					),
+					'callback_args'   => array($version, $model_name),
+					'methods'         => WP_REST_Server::READABLE,
+					'hidden_endpoint' => $hidden_endpoint,
+					'args'            => $this->_get_response_selection_query_params($model, $version, true),
+				),
+			);
+			if (apply_filters(
+				'FHEE__EED_Core_Rest_Api___get_model_route_data_for_version__add_write_endpoints',
+				EED_Core_Rest_Api::should_have_write_endpoints($model),
+				$model
+			)) {
+				$model_routes[ $plural_model_route ][] = array(
+					'callback'        => array(
+						'EventEspresso\core\libraries\rest_api\controllers\model\Write',
+						'handleRequestInsert',
+					),
+					'callback_args'   => array($version, $model_name),
+					'methods'         => WP_REST_Server::CREATABLE,
+					'hidden_endpoint' => $hidden_endpoint,
+					'args'            => $this->_get_write_params($model_name, $model_version_info, true),
+				);
+				$model_routes[ $singular_model_route ] = array_merge(
+					$model_routes[ $singular_model_route ],
+					array(
+						array(
+							'callback'        => array(
+								'EventEspresso\core\libraries\rest_api\controllers\model\Write',
+								'handleRequestUpdate',
+							),
+							'callback_args'   => array($version, $model_name),
+							'methods'         => WP_REST_Server::EDITABLE,
+							'hidden_endpoint' => $hidden_endpoint,
+							'args'            => $this->_get_write_params($model_name, $model_version_info),
+						),
+						array(
+							'callback'        => array(
+								'EventEspresso\core\libraries\rest_api\controllers\model\Write',
+								'handleRequestDelete',
+							),
+							'callback_args'   => array($version, $model_name),
+							'methods'         => WP_REST_Server::DELETABLE,
+							'hidden_endpoint' => $hidden_endpoint,
+							'args'            => $this->_get_delete_query_params($model, $version),
+						),
+					)
+				);
+			}
+			foreach ($model->relation_settings() as $relation_name => $relation_obj) {
+				$related_route = EED_Core_Rest_Api::get_relation_route_via(
+					$model,
+					'(?P<id>[^\/]+)',
+					$relation_obj
+				);
+				$model_routes[ $related_route ] = array(
+					array(
+						'callback'        => array(
+							'EventEspresso\core\libraries\rest_api\controllers\model\Read',
+							'handleRequestGetRelated',
+						),
+						'callback_args'   => array($version, $model_name, $relation_name),
+						'methods'         => WP_REST_Server::READABLE,
+						'hidden_endpoint' => $hidden_endpoint,
+						'args'            => $this->_get_read_query_params($relation_obj->get_other_model(), $version),
+					),
+				);
+
+				$related_write_route = $related_route . '/' . '(?P<related_id>[^\/]+)';
+				$model_routes[ $related_write_route ] = array(
+					array(
+						'callback'        => array(
+							'EventEspresso\core\libraries\rest_api\controllers\model\Write',
+							'handleRequestAddRelation',
+						),
+						'callback_args'   => array($version, $model_name, $relation_name),
+						'methods'         => WP_REST_Server::EDITABLE,
+						'hidden_endpoint' => $hidden_endpoint,
+						'args'            => $this->_get_add_relation_query_params($model, $relation_obj->get_other_model(), $version)
+					),
+					array(
+						'callback'        => array(
+							'EventEspresso\core\libraries\rest_api\controllers\model\Write',
+							'handleRequestRemoveRelation',
+						),
+						'callback_args'   => array($version, $model_name, $relation_name),
+						'methods'         => WP_REST_Server::DELETABLE,
+						'hidden_endpoint' => $hidden_endpoint,
+						'args'            => array()
+					),
+				);
+			}
+		}
+		return $model_routes;
+	}
+
+
+	/**
+	 * Gets the relative URI to a model's REST API plural route, after the EE4 versioned namespace,
+	 * excluding the preceding slash.
+	 * Eg you pass get_plural_route_to('Event') = 'events'
+	 *
+	 * @param EEM_Base $model
+	 * @return string
+	 */
+	public static function get_collection_route(EEM_Base $model)
+	{
+		return EEH_Inflector::pluralize_and_lower($model->get_this_model_name());
+	}
+
+
+	/**
+	 * Gets the relative URI to a model's REST API singular route, after the EE4 versioned namespace,
+	 * excluding the preceding slash.
+	 * Eg you pass get_plural_route_to('Event', 12) = 'events/12'
+	 *
+	 * @param EEM_Base $model eg Event or Venue
+	 * @param string   $id
+	 * @return string
+	 */
+	public static function get_entity_route($model, $id)
+	{
+		return EED_Core_Rest_Api::get_collection_route($model) . '/' . $id;
+	}
+
+
+	/**
+	 * Gets the relative URI to a model's REST API singular route, after the EE4 versioned namespace,
+	 * excluding the preceding slash.
+	 * Eg you pass get_plural_route_to('Event', 12) = 'events/12'
+	 *
+	 * @param EEM_Base               $model eg Event or Venue
+	 * @param string                 $id
+	 * @param EE_Model_Relation_Base $relation_obj
+	 * @return string
+	 */
+	public static function get_relation_route_via(EEM_Base $model, $id, EE_Model_Relation_Base $relation_obj)
+	{
+		$related_model_name_endpoint_part = ModelRead::getRelatedEntityName(
+			$relation_obj->get_other_model()->get_this_model_name(),
+			$relation_obj
+		);
+		return EED_Core_Rest_Api::get_entity_route($model, $id) . '/' . $related_model_name_endpoint_part;
+	}
+
+
+	/**
+	 * Adds onto the $relative_route the EE4 REST API versioned namespace.
+	 * Eg if given '4.8.36' and 'events', will return 'ee/v4.8.36/events'
+	 *
+	 * @param string $relative_route
+	 * @param string $version
+	 * @return string
+	 */
+	public static function get_versioned_route_to($relative_route, $version = '4.8.36')
+	{
+		return '/' . EED_Core_Rest_Api::ee_api_namespace . $version . '/' . $relative_route;
+	}
+
+
+	/**
+	 * Adds all the RPC-style routes (remote procedure call-like routes, ie
+	 * routes that don't conform to the traditional REST CRUD-style).
+	 *
+	 * @deprecated since 4.9.1
+	 */
+	protected function _register_rpc_routes()
+	{
+		$routes = array();
+		foreach (self::versions_served() as $version => $hidden_endpoint) {
+			$routes[ self::ee_api_namespace . $version ] = $this->_get_rpc_route_data_for_version(
+				$version,
+				$hidden_endpoint
+			);
+		}
+		return $routes;
+	}
+
+
+	/**
+	 * @param string  $version
+	 * @param boolean $hidden_endpoint
+	 * @return array
+	 */
+	protected function _get_rpc_route_data_for_version($version, $hidden_endpoint = false)
+	{
+		$this_versions_routes = array();
+		// checkin endpoint
+		$this_versions_routes['registrations/(?P<REG_ID>\d+)/toggle_checkin_for_datetime/(?P<DTT_ID>\d+)'] = array(
+			array(
+				'callback'        => array(
+					'EventEspresso\core\libraries\rest_api\controllers\rpc\Checkin',
+					'handleRequestToggleCheckin',
+				),
+				'methods'         => WP_REST_Server::CREATABLE,
+				'hidden_endpoint' => $hidden_endpoint,
+				'args'            => array(
+					'force' => array(
+						'required'    => false,
+						'default'     => false,
+						'description' => __(
+						// @codingStandardsIgnoreStart
+							'Whether to force toggle checkin, or to verify the registration status and allowed ticket uses',
+							// @codingStandardsIgnoreEnd
+							'event_espresso'
+						),
+					),
+				),
+				'callback_args'   => array($version),
+			),
+		);
+		return apply_filters(
+			'FHEE__EED_Core_Rest_Api___register_rpc_routes__this_versions_routes',
+			$this_versions_routes,
+			$version,
+			$hidden_endpoint
+		);
+	}
+
+
+	/**
+	 * Gets the query params that can be used when request one or many
+	 *
+	 * @param EEM_Base $model
+	 * @param string   $version
+	 * @return array
+	 */
+	protected function _get_response_selection_query_params(\EEM_Base $model, $version, $single_only = false)
+	{
+		$query_params = array(
+			'include'   => array(
+				'required' => false,
+				'default'  => '*',
+				'type'     => 'string',
+			),
+			'calculate' => array(
+				'required'          => false,
+				'default'           => '',
+				'enum'              => self::$_field_calculator->retrieveCalculatedFieldsForModel($model),
+				'type'              => 'string',
+				// because we accept a CSV'd list of the enumerated strings, WP core validation and sanitization
+				// freaks out. We'll just validate this argument while handling the request
+				'validate_callback' => null,
+				'sanitize_callback' => null,
+			),
+			'password' => array(
+				'required' => false,
+				'default' => '',
+				'type' => 'string'
+			)
+		);
+		return apply_filters(
+			'FHEE__EED_Core_Rest_Api___get_response_selection_query_params',
+			$query_params,
+			$model,
+			$version
+		);
+	}
+
+
+	/**
+	 * Gets the parameters acceptable for delete requests
+	 *
+	 * @param \EEM_Base $model
+	 * @param string    $version
+	 * @return array
+	 */
+	protected function _get_delete_query_params(\EEM_Base $model, $version)
+	{
+		$params_for_delete = array(
+			'allow_blocking' => array(
+				'required' => false,
+				'default'  => true,
+				'type'     => 'boolean',
+			),
+		);
+		$params_for_delete['force'] = array(
+			'required' => false,
+			'default'  => false,
+			'type'     => 'boolean',
+		);
+		return apply_filters(
+			'FHEE__EED_Core_Rest_Api___get_delete_query_params',
+			$params_for_delete,
+			$model,
+			$version
+		);
+	}
+
+	protected function _get_add_relation_query_params(\EEM_Base $source_model, \EEM_Base $related_model, $version)
+	{
+		// if they're related through a HABTM relation, check for any non-FKs
+		$all_relation_settings = $source_model->relation_settings();
+		$relation_settings = $all_relation_settings[ $related_model->get_this_model_name() ];
+		$params = array();
+		if ($relation_settings instanceof EE_HABTM_Relation && $relation_settings->hasNonKeyFields()) {
+			foreach ($relation_settings->getNonKeyFields() as $field) {
+				/* @var $field EE_Model_Field_Base */
+				$params[ $field->get_name() ] = array(
+					'required' => ! $field->is_nullable(),
+					'default' => ModelDataTranslator::prepareFieldValueForJson($field, $field->get_default_value(), $version),
+					'type' => $field->getSchemaType(),
+					'validate_callbaack' => null,
+					'sanitize_callback' => null
+				);
+			}
+		}
+		return $params;
+	}
+
+
+	/**
+	 * Gets info about reading query params that are acceptable
+	 *
+	 * @param \EEM_Base $model eg 'Event' or 'Venue'
+	 * @param  string   $version
+	 * @return array    describing the args acceptable when querying this model
+	 * @throws EE_Error
+	 */
+	protected function _get_read_query_params(\EEM_Base $model, $version)
+	{
+		$default_orderby = array();
+		foreach ($model->get_combined_primary_key_fields() as $key_field) {
+			$default_orderby[ $key_field->get_name() ] = 'ASC';
+		}
+		return array_merge(
+			$this->_get_response_selection_query_params($model, $version),
+			array(
+				'where'    => array(
+					'required'          => false,
+					'default'           => array(),
+					'type'              => 'object',
+					// because we accept an almost infinite list of possible where conditions, WP
+					// core validation and sanitization freaks out. We'll just validate this argument
+					// while handling the request
+					'validate_callback' => null,
+					'sanitize_callback' => null,
+				),
+				'limit'    => array(
+					'required'          => false,
+					'default'           => EED_Core_Rest_Api::get_default_query_limit(),
+					'type'              => array(
+						'array',
+						'string',
+						'integer',
+					),
+					// because we accept a variety of types, WP core validation and sanitization
+					// freaks out. We'll just validate this argument while handling the request
+					'validate_callback' => null,
+					'sanitize_callback' => null,
+				),
+				'order_by' => array(
+					'required'          => false,
+					'default'           => $default_orderby,
+					'type'              => array(
+						'object',
+						'string',
+					),// because we accept a variety of types, WP core validation and sanitization
+					// freaks out. We'll just validate this argument while handling the request
+					'validate_callback' => null,
+					'sanitize_callback' => null,
+				),
+				'group_by' => array(
+					'required'          => false,
+					'default'           => null,
+					'type'              => array(
+						'object',
+						'string',
+					),
+					// because we accept  an almost infinite list of possible groupings,
+					// WP core validation and sanitization
+					// freaks out. We'll just validate this argument while handling the request
+					'validate_callback' => null,
+					'sanitize_callback' => null,
+				),
+				'having'   => array(
+					'required'          => false,
+					'default'           => null,
+					'type'              => 'object',
+					// because we accept an almost infinite list of possible where conditions, WP
+					// core validation and sanitization freaks out. We'll just validate this argument
+					// while handling the request
+					'validate_callback' => null,
+					'sanitize_callback' => null,
+				),
+				'caps'     => array(
+					'required' => false,
+					'default'  => EEM_Base::caps_read,
+					'type'     => 'string',
+					'enum'     => array(
+						EEM_Base::caps_read,
+						EEM_Base::caps_read_admin,
+						EEM_Base::caps_edit,
+						EEM_Base::caps_delete,
+					),
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * Gets parameter information for a model regarding writing data
+	 *
+	 * @param string           $model_name
+	 * @param ModelVersionInfo $model_version_info
+	 * @param boolean          $create                                       whether this is for request to create (in
+	 *                                                                       which case we need all required params) or
+	 *                                                                       just to update (in which case we don't
+	 *                                                                       need those on every request)
+	 * @return array
+	 */
+	protected function _get_write_params(
+		$model_name,
+		ModelVersionInfo $model_version_info,
+		$create = false
+	) {
+		$model = EE_Registry::instance()->load_model($model_name);
+		$fields = $model_version_info->fieldsOnModelInThisVersion($model);
+		$args_info = array();
+		foreach ($fields as $field_name => $field_obj) {
+			if ($field_obj->is_auto_increment()) {
+				// totally ignore auto increment IDs
+				continue;
+			}
+			$arg_info = $field_obj->getSchema();
+			$required = $create && ! $field_obj->is_nullable() && $field_obj->get_default_value() === null;
+			$arg_info['required'] = $required;
+			// remove the read-only flag. If it were read-only we wouldn't list it as an argument while writing, right?
+			unset($arg_info['readonly']);
+			$schema_properties = $field_obj->getSchemaProperties();
+			if (isset($schema_properties['raw'])
+				&& $field_obj->getSchemaType() === 'object'
+			) {
+				// if there's a "raw" form of this argument, use those properties instead
+				$arg_info = array_replace(
+					$arg_info,
+					$schema_properties['raw']
+				);
+			}
+			$arg_info['default'] = ModelDataTranslator::prepareFieldValueForJson(
+				$field_obj,
+				$field_obj->get_default_value(),
+				$model_version_info->requestedVersion()
+			);
+			// we do our own validation and sanitization within the controller
+			if (function_exists('rest_validate_value_from_schema')) {
+				$sanitize_callback = array(
+					'EED_Core_Rest_Api',
+					'default_sanitize_callback',
+				);
+			} else {
+				$sanitize_callback = null;
+			}
+			$arg_info['sanitize_callback'] = $sanitize_callback;
+			$args_info[ $field_name ] = $arg_info;
+			if ($field_obj instanceof EE_Datetime_Field) {
+				$gmt_arg_info = $arg_info;
+				$gmt_arg_info['description'] = sprintf(
+					esc_html__(
+						'%1$s - the value for this field in UTC. Ignored if %2$s is provided.',
+						'event_espresso'
+					),
+					$field_obj->get_nicename(),
+					$field_name
+				);
+				$args_info[ $field_name . '_gmt' ] = $gmt_arg_info;
+			}
+		}
+		return $args_info;
+	}
+
+
+	/**
+	 * Replacement for WP API's 'rest_parse_request_arg'.
+	 * If the value is blank but not required, don't bother validating it.
+	 * Also, it uses our email validation instead of WP API's default.
+	 *
+	 * @param                 $value
+	 * @param WP_REST_Request $request
+	 * @param                 $param
+	 * @return bool|true|WP_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	public static function default_sanitize_callback($value, WP_REST_Request $request, $param)
+	{
+		$attributes = $request->get_attributes();
+		if (! isset($attributes['args'][ $param ])
+			|| ! is_array($attributes['args'][ $param ])) {
+			$validation_result = true;
+		} else {
+			$args = $attributes['args'][ $param ];
+			if ((
+					$value === ''
+					|| $value === null
+				)
+				&& (! isset($args['required'])
+					|| $args['required'] === false
+				)
+			) {
+				// not required and not provided? that's cool
+				$validation_result = true;
+			} elseif (isset($args['format'])
+					  && $args['format'] === 'email'
+			) {
+				$validation_result = true;
+				if (! self::_validate_email($value)) {
+					$validation_result = new WP_Error(
+						'rest_invalid_param',
+						esc_html__(
+							'The email address is not valid or does not exist.',
+							'event_espresso'
+						)
+					);
+				}
+			} else {
+				$validation_result = rest_validate_value_from_schema($value, $args, $param);
+			}
+		}
+		if (is_wp_error($validation_result)) {
+			return $validation_result;
+		}
+		return rest_sanitize_request_arg($value, $request, $param);
+	}
+
+
+	/**
+	 * Returns whether or not this email address is valid. Copied from EE_Email_Validation_Strategy::_validate_email()
+	 *
+	 * @param $email
+	 * @return bool
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	protected static function _validate_email($email)
+	{
+		try {
+			EmailAddressFactory::create($email);
+			return true;
+		} catch (EmailValidationException $e) {
+			return false;
+		}
+	}
+
+
+	/**
+	 * Gets routes for the config
+	 *
+	 * @return array @see _register_model_routes
+	 * @deprecated since version 4.9.1
+	 */
+	protected function _register_config_routes()
+	{
+		$config_routes = array();
+		foreach (self::versions_served() as $version => $hidden_endpoint) {
+			$config_routes[ self::ee_api_namespace . $version ] = $this->_get_config_route_data_for_version(
+				$version,
+				$hidden_endpoint
+			);
+		}
+		return $config_routes;
+	}
+
+
+	/**
+	 * Gets routes for the config for the specified version
+	 *
+	 * @param string  $version
+	 * @param boolean $hidden_endpoint
+	 * @return array
+	 */
+	protected function _get_config_route_data_for_version($version, $hidden_endpoint)
+	{
+		return array(
+			'config'    => array(
+				array(
+					'callback'        => array(
+						'EventEspresso\core\libraries\rest_api\controllers\config\Read',
+						'handleRequest',
+					),
+					'methods'         => WP_REST_Server::READABLE,
+					'hidden_endpoint' => $hidden_endpoint,
+					'callback_args'   => array($version),
+				),
+			),
+			'site_info' => array(
+				array(
+					'callback'        => array(
+						'EventEspresso\core\libraries\rest_api\controllers\config\Read',
+						'handleRequestSiteInfo',
+					),
+					'methods'         => WP_REST_Server::READABLE,
+					'hidden_endpoint' => $hidden_endpoint,
+					'callback_args'   => array($version),
+				),
+			),
+		);
+	}
+
+
+	/**
+	 * Gets the meta info routes
+	 *
+	 * @return array @see _register_model_routes
+	 * @deprecated since version 4.9.1
+	 */
+	protected function _register_meta_routes()
+	{
+		$meta_routes = array();
+		foreach (self::versions_served() as $version => $hidden_endpoint) {
+			$meta_routes[ self::ee_api_namespace . $version ] = $this->_get_meta_route_data_for_version(
+				$version,
+				$hidden_endpoint
+			);
+		}
+		return $meta_routes;
+	}
+
+
+	/**
+	 * @param string  $version
+	 * @param boolean $hidden_endpoint
+	 * @return array
+	 */
+	protected function _get_meta_route_data_for_version($version, $hidden_endpoint = false)
+	{
+		return array(
+			'resources' => array(
+				array(
+					'callback'        => array(
+						'EventEspresso\core\libraries\rest_api\controllers\model\Meta',
+						'handleRequestModelsMeta',
+					),
+					'methods'         => WP_REST_Server::READABLE,
+					'hidden_endpoint' => $hidden_endpoint,
+					'callback_args'   => array($version),
+				),
+			),
+		);
+	}
+
+
+	/**
+	 * Tries to hide old 4.6 endpoints from the
+	 *
+	 * @param array $route_data
+	 * @return array
+	 * @throws \EE_Error
+	 */
+	public static function hide_old_endpoints($route_data)
+	{
+		// allow API clients to override which endpoints get hidden, in case
+		// they want to discover particular endpoints
+		// also, we don't have access to the request so we have to just grab it from the superglobal
+		$force_show_ee_namespace = ltrim(
+			EEH_Array::is_set($_REQUEST, 'force_show_ee_namespace', ''),
+			'/'
+		);
+		foreach (EED_Core_Rest_Api::get_ee_route_data() as $namespace => $relative_urls) {
+			foreach ($relative_urls as $resource_name => $endpoints) {
+				foreach ($endpoints as $key => $endpoint) {
+					// skip schema and other route options
+					if (! is_numeric($key)) {
+						continue;
+					}
+					// by default, hide "hidden_endpoint"s, unless the request indicates
+					// to $force_show_ee_namespace, in which case only show that one
+					// namespace's endpoints (and hide all others)
+					if (($force_show_ee_namespace !== '' && $force_show_ee_namespace !== $namespace)
+						|| ($endpoint['hidden_endpoint'] && $force_show_ee_namespace === '')
+					) {
+						$full_route = '/' . ltrim($namespace, '/');
+						$full_route .= '/' . ltrim($resource_name, '/');
+						unset($route_data[ $full_route ]);
+					}
+				}
+			}
+		}
+		return $route_data;
+	}
+
+
+	/**
+	 * Returns an array describing which versions of core support serving requests for.
+	 * Keys are core versions' major and minor version, and values are the
+	 * LOWEST requested version they can serve. Eg, 4.7 can serve requests for 4.6-like
+	 * data by just removing a few models and fields from the responses. However, 4.15 might remove
+	 * the answers table entirely, in which case it would be very difficult for
+	 * it to serve 4.6-style responses.
+	 * Versions of core that are missing from this array are unknowns.
+	 * previous ver
+	 *
+	 * @return array
+	 */
+	public static function version_compatibilities()
+	{
+		return apply_filters(
+			'FHEE__EED_Core_REST_API__version_compatibilities',
+			array(
+				'4.8.29' => '4.8.29',
+				'4.8.33' => '4.8.29',
+				'4.8.34' => '4.8.29',
+				'4.8.36' => '4.8.29',
+			)
+		);
+	}
+
+
+	/**
+	 * Gets the latest API version served. Eg if there
+	 * are two versions served of the API, 4.8.29 and 4.8.32, and
+	 * we are on core version 4.8.34, it will return the string "4.8.32"
+	 *
+	 * @return string
+	 */
+	public static function latest_rest_api_version()
+	{
+		$versions_served = \EED_Core_Rest_Api::versions_served();
+		$versions_served_keys = array_keys($versions_served);
+		return end($versions_served_keys);
+	}
+
+
+	/**
+	 * Using EED_Core_Rest_Api::version_compatibilities(), determines what version of
+	 * EE the API can serve requests for. Eg, if we are on 4.15 of core, and
+	 * we can serve requests from 4.12 or later, this will return array( '4.12', '4.13', '4.14', '4.15' ).
+	 * We also indicate whether or not this version should be put in the index or not
+	 *
+	 * @return array keys are API version numbers (just major and minor numbers), and values
+	 * are whether or not they should be hidden
+	 */
+	public static function versions_served()
+	{
+		$versions_served = array();
+		$possibly_served_versions = EED_Core_Rest_Api::version_compatibilities();
+		$lowest_compatible_version = end($possibly_served_versions);
+		reset($possibly_served_versions);
+		$versions_served_historically = array_keys($possibly_served_versions);
+		$latest_version = end($versions_served_historically);
+		reset($versions_served_historically);
+		// for each version of core we have ever served:
+		foreach ($versions_served_historically as $key_versioned_endpoint) {
+			// if it's not above the current core version, and it's compatible with the current version of core
+			if ($key_versioned_endpoint === $latest_version) {
+				// don't hide the latest version in the index
+				$versions_served[ $key_versioned_endpoint ] = false;
+			} elseif ($key_versioned_endpoint >= $lowest_compatible_version
+				&& $key_versioned_endpoint < EED_Core_Rest_Api::core_version()
+			) {
+				// include, but hide, previous versions which are still supported
+				$versions_served[ $key_versioned_endpoint ] = true;
+			} elseif (apply_filters(
+				'FHEE__EED_Core_Rest_Api__versions_served__include_incompatible_versions',
+				false,
+				$possibly_served_versions
+			)) {
+				// if a version is no longer supported, don't include it in index or list of versions served
+				$versions_served[ $key_versioned_endpoint ] = true;
+			}
+		}
+		return $versions_served;
+	}
+
+
+	/**
+	 * Gets the major and minor version of EE core's version string
+	 *
+	 * @return string
+	 */
+	public static function core_version()
+	{
+		return apply_filters(
+			'FHEE__EED_Core_REST_API__core_version',
+			implode(
+				'.',
+				array_slice(
+					explode(
+						'.',
+						espresso_version()
+					),
+					0,
+					3
+				)
+			)
+		);
+	}
+
+
+	/**
+	 * Gets the default limit that should be used when querying for resources
+	 *
+	 * @return int
+	 */
+	public static function get_default_query_limit()
+	{
+		// we actually don't use a const because we want folks to always use
+		// this method, not the const directly
+		return apply_filters(
+			'FHEE__EED_Core_Rest_Api__get_default_query_limit',
+			50
+		);
+	}
+
+
+	/**
+	 *
+	 * @param string $version api version string (i.e. '4.8.36')
+	 * @return array
+	 */
+	public static function getCollectionRoutesIndexedByModelName($version = '')
+	{
+		$version = empty($version) ? self::latest_rest_api_version() : $version;
+		$model_names = self::model_names_with_plural_routes($version);
+		$collection_routes = array();
+		foreach ($model_names as $model_name => $model_class_name) {
+			$collection_routes[ strtolower($model_name) ] = '/' . self::ee_api_namespace . $version . '/'
+															. EEH_Inflector::pluralize_and_lower($model_name);
+		}
+		return $collection_routes;
+	}
+
+
+	/**
+	 * Returns an array of primary key names indexed by model names.
+	 * @param string $version
+	 * @return array
+	 */
+	public static function getPrimaryKeyNamesIndexedByModelName($version = '')
+	{
+		$version = empty($version) ? self::latest_rest_api_version() : $version;
+		$model_names = self::model_names_with_plural_routes($version);
+		$primary_key_items = array();
+		foreach ($model_names as $model_name => $model_class_name) {
+			$primary_keys = $model_class_name::instance()->get_combined_primary_key_fields();
+			foreach ($primary_keys as $primary_key_name => $primary_key_field) {
+				if (count($primary_keys) > 1) {
+					$primary_key_items[ strtolower($model_name) ][] = $primary_key_name;
+				} else {
+					$primary_key_items[ strtolower($model_name) ] = $primary_key_name;
+				}
+			}
+		}
+		return $primary_key_items;
+	}
+
+	/**
+	 * Determines the EE REST API debug mode is activated, or not.
+	 * @since 4.9.76.p
+	 * @return bool
+	 */
+	public static function debugMode()
+	{
+		static $debug_mode = null; // could be class prop
+		if ($debug_mode === null) {
+			$debug_mode = defined('EE_REST_API_DEBUG_MODE') && EE_REST_API_DEBUG_MODE;
+		}
+		return $debug_mode;
+	}
+
+
+
+	/**
+	 *    run - initial module setup
+	 *
+	 * @access    public
+	 * @param  WP $WP
+	 * @return    void
+	 */
+	public function run($WP)
+	{
+	}
 }

espresso.php

Indentation +80 added lines, -80 removed lines

@@ -38,103 +38,103 @@
  * @since           4.0
  */
 if (function_exists('espresso_version')) {
-    if (! function_exists('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()
-        {
-            ?>
+	if (! function_exists('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'
-                    ); ?>
+					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'
+					); ?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
-    }
-    add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
+	}
+	add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
 } else {
-    define('EE_MIN_PHP_VER_REQUIRED', '5.4.0');
-    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', '5.4.0');
+	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 {
-        define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
-        /**
-         * espresso_version
-         * Returns the plugin version
-         *
-         * @return string
-         */
-        function espresso_version()
-        {
-            return apply_filters('FHEE__espresso__espresso_version', '4.9.77.rc.000');
-        }
+		add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
+	} else {
+		define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
+		/**
+		 * espresso_version
+		 * Returns the plugin version
+		 *
+		 * @return string
+		 */
+		function espresso_version()
+		{
+			return apply_filters('FHEE__espresso__espresso_version', '4.9.77.rc.000');
+		}
 
-        /**
-         * 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);
-        }
+		/**
+		 * 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');
+		register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
 
-        require_once __DIR__ . '/core/bootstrap_espresso.php';
-        bootstrap_espresso();
-    }
+		require_once __DIR__ . '/core/bootstrap_espresso.php';
+		bootstrap_espresso();
+	}
 }
 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);
+	}
 }