AyeCode / invoicing

includes/api/class-getpaid-rest-crud-controller.php

Spacing +117 added lines, -117 removed lines

@@ -8,7 +8,7 @@ 
  * @version 1.0.19
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * GetPaid REST CRUD controller class.
@@ -38,7 +38,7 @@ 
 	 *
 	 * @see register_rest_route()
 	 */
-	public function register_namespace_routes( $namespace ) {
+	public function register_namespace_routes($namespace) {
 
 		register_rest_route(
 			$namespace,
@@ -46,22 +46,22 @@ 
 			array(
 				array(
 					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_items' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+					'callback'            => array($this, 'get_items'),
+					'permission_callback' => array($this, 'get_items_permissions_check'),
 					'args'                => $this->get_collection_params(),
 				),
 				array(
 					'methods'             => WP_REST_Server::CREATABLE,
-					'callback'            => array( $this, 'create_item' ),
-					'permission_callback' => array( $this, 'create_item_permissions_check' ),
-					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::CREATABLE ),
+					'callback'            => array($this, 'create_item'),
+					'permission_callback' => array($this, 'create_item_permissions_check'),
+					'args'                => $this->get_endpoint_args_for_item_schema(WP_REST_Server::CREATABLE),
 				),
-				'schema' => array( $this, 'get_public_item_schema' ),
+				'schema' => array($this, 'get_public_item_schema'),
 			)
 		);
 
 		$get_item_args = array(
-			'context' => $this->get_context_param( array( 'default' => 'view' ) ),
+			'context' => $this->get_context_param(array('default' => 'view')),
 		);
 
 		register_rest_route(
@@ -70,35 +70,35 @@ 
 			array(
 				'args'   => array(
 					'id' => array(
-						'description' => __( 'Unique identifier for the object.', 'invoicing' ),
+						'description' => __('Unique identifier for the object.', 'invoicing'),
 						'type'        => 'integer',
 					),
 				),
 				array(
 					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_item' ),
-					'permission_callback' => array( $this, 'get_item_permissions_check' ),
+					'callback'            => array($this, 'get_item'),
+					'permission_callback' => array($this, 'get_item_permissions_check'),
 					'args'                => $get_item_args,
 				),
 				array(
 					'methods'             => WP_REST_Server::EDITABLE,
-					'callback'            => array( $this, 'update_item' ),
-					'permission_callback' => array( $this, 'update_item_permissions_check' ),
-					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
+					'callback'            => array($this, 'update_item'),
+					'permission_callback' => array($this, 'update_item_permissions_check'),
+					'args'                => $this->get_endpoint_args_for_item_schema(WP_REST_Server::EDITABLE),
 				),
 				array(
 					'methods'             => WP_REST_Server::DELETABLE,
-					'callback'            => array( $this, 'delete_item' ),
-					'permission_callback' => array( $this, 'delete_item_permissions_check' ),
+					'callback'            => array($this, 'delete_item'),
+					'permission_callback' => array($this, 'delete_item_permissions_check'),
 					'args'                => array(
 						'force' => array(
 							'type'        => 'boolean',
 							'default'     => false,
-							'description' => __( 'Whether to bypass Trash and force deletion.', 'invoicing' ),
+							'description' => __('Whether to bypass Trash and force deletion.', 'invoicing'),
 						),
 					),
 				),
-				'schema' => array( $this, 'get_public_item_schema' ),
+				'schema' => array($this, 'get_public_item_schema'),
 			)
 		);
 
@@ -110,14 +110,14 @@ 
 	 * @param GetPaid_Data $object Object to save.
 	 * @return WP_Error|GetPaid_Data
 	 */
-	protected function save_object( $object ) {
+	protected function save_object($object) {
 		$object->save();
 
-		if ( ! empty( $object->last_error ) ) {
-			return new WP_Error( 'rest_cannot_save', $object->last_error, array( 'status' => 400 ) );
+		if (!empty($object->last_error)) {
+			return new WP_Error('rest_cannot_save', $object->last_error, array('status' => 400));
 		}
 
-		return new $this->crud_class( $object->get_id() );
+		return new $this->crud_class($object->get_id());
 	}
 
 	/**
@@ -128,21 +128,21 @@ 
 	 * @param int|WP_Post $object_id Supplied ID.
 	 * @return GetPaid_Data|WP_Error GetPaid_Data object if ID is valid, WP_Error otherwise.
 	 */
-	protected function get_object( $object_id ) {
+	protected function get_object($object_id) {
 
 		// Do we have an object?
-		if ( empty( $this->crud_class ) || ! class_exists( $this->crud_class ) ) {
-			return new WP_Error( 'no_crud_class', __( 'You need to specify a CRUD class for this controller', 'invoicing' ) );
+		if (empty($this->crud_class) || !class_exists($this->crud_class)) {
+			return new WP_Error('no_crud_class', __('You need to specify a CRUD class for this controller', 'invoicing'));
 		}
 
 		// Fetch the object.
-		$object = new $this->crud_class( $object_id );
-		if ( ! empty( $object->last_error ) ) {
-			return new WP_Error( 'rest_object_invalid_id', $object->last_error, array( 'status' => 404 ) );
+		$object = new $this->crud_class($object_id);
+		if (!empty($object->last_error)) {
+			return new WP_Error('rest_object_invalid_id', $object->last_error, array('status' => 404));
 		}
 
 		$this->data_object = $object;
-		return $object->get_id() ? $object : new WP_Error( 'rest_object_invalid_id', __( 'Invalid ID.', 'invoicing' ), array( 'status' => 404 ) );
+		return $object->get_id() ? $object : new WP_Error('rest_object_invalid_id', __('Invalid ID.', 'invoicing'), array('status' => 404));
 
 	}
 
@@ -152,17 +152,17 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function get_item( $request ) {
+	public function get_item($request) {
 
 		// Fetch the item.
-		$object = $this->get_object( $request['id'] );
+		$object = $this->get_object($request['id']);
 
-		if ( is_wp_error( $object ) ) {
+		if (is_wp_error($object)) {
 			return $object;
 		}
 
 		// Generate a response.
-		return rest_ensure_response( $this->prepare_item_for_response( $object, $request ) );
+		return rest_ensure_response($this->prepare_item_for_response($object, $request));
 
 	}
 
@@ -172,38 +172,38 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function create_item( $request ) {
+	public function create_item($request) {
 
 		// Can not create an existing item.
-		if ( ! empty( $request['id'] ) ) {
+		if (!empty($request['id'])) {
 			/* translators: %s: post type */
-			return new WP_Error( "getpaid_rest_{$this->post_type}_exists", __( 'Cannot create existing resource.', 'invoicing' ), array( 'status' => 400 ) );
+			return new WP_Error("getpaid_rest_{$this->post_type}_exists", __('Cannot create existing resource.', 'invoicing'), array('status' => 400));
 		}
 
 		// Generate a GetPaid_Data object from the request.
-		$object = $this->prepare_item_for_database( $request );
-		if ( is_wp_error( $object ) ) {
+		$object = $this->prepare_item_for_database($request);
+		if (is_wp_error($object)) {
 			return $object;
 		}
 
 		// Save the object.
-		$object = $this->save_object( $object );
-		if ( is_wp_error( $object ) ) {
+		$object = $this->save_object($object);
+		if (is_wp_error($object)) {
 			return $object;
 		}
 
 		// Save special fields.
-		$save_special = $this->update_additional_fields_for_object( $object, $request );
-		if ( is_wp_error( $save_special ) ) {
-			$object->delete( true );
+		$save_special = $this->update_additional_fields_for_object($object, $request);
+		if (is_wp_error($save_special)) {
+			$object->delete(true);
 			return $save_special;
 		}
 
-		$request->set_param( 'context', 'edit' );
-		$response = $this->prepare_item_for_response( $object, $request );
-		$response = rest_ensure_response( $response );
-		$response->set_status( 201 );
-		$response->header( 'Location', rest_url( sprintf( '/%s/%s/%d', $this->namespace, $this->rest_base, $object->get_id() ) ) );
+		$request->set_param('context', 'edit');
+		$response = $this->prepare_item_for_response($object, $request);
+		$response = rest_ensure_response($response);
+		$response->set_status(201);
+		$response->header('Location', rest_url(sprintf('/%s/%s/%d', $this->namespace, $this->rest_base, $object->get_id())));
 
 		return $response;
 	}
@@ -214,35 +214,35 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function update_item( $request ) {
+	public function update_item($request) {
 
 		// Fetch the item.
-		$object = $this->get_object( $request['id'] );
-		if ( is_wp_error( $object ) ) {
+		$object = $this->get_object($request['id']);
+		if (is_wp_error($object)) {
 			return $object;
 		}
 
 		// Prepare the item for saving.
-		$object = $this->prepare_item_for_database( $request );
-		if ( is_wp_error( $object ) ) {
+		$object = $this->prepare_item_for_database($request);
+		if (is_wp_error($object)) {
 			return $object;
 		}
 
 		// Save the item.
-		$object = $this->save_object( $object );
-		if ( is_wp_error( $object ) ) {
+		$object = $this->save_object($object);
+		if (is_wp_error($object)) {
 			return $object;
 		}
 
 		// Save special fields (those added via hooks).
-		$save_special = $this->update_additional_fields_for_object( $object, $request );
-		if ( is_wp_error( $save_special ) ) {
+		$save_special = $this->update_additional_fields_for_object($object, $request);
+		if (is_wp_error($save_special)) {
 			return $save_special;
 		}
 
-		$request->set_param( 'context', 'edit' );
-		$response = $this->prepare_item_for_response( $object, $request );
-		return rest_ensure_response( $response );
+		$request->set_param('context', 'edit');
+		$response = $this->prepare_item_for_response($object, $request);
+		return rest_ensure_response($response);
 	}
 
 	/**
@@ -251,14 +251,14 @@ 
 	 * @param GetPaid_Data    $object GetPaid_Data object.
 	 * @return array Links for the given object.
 	 */
-	protected function prepare_links( $object ) {
+	protected function prepare_links($object) {
 
 		$links = array(
 			'self'       => array(
-				'href'   => rest_url( sprintf( '/%s/%s/%d', $this->namespace, $this->rest_base, $object->get_id() ) ),
+				'href'   => rest_url(sprintf('/%s/%s/%d', $this->namespace, $this->rest_base, $object->get_id())),
 			),
 			'collection' => array(
-				'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
+				'href'   => rest_url(sprintf('/%s/%s', $this->namespace, $this->rest_base)),
 			),
 		);
 
@@ -282,8 +282,8 @@ 
 	 * @param  array $schema Schema.
 	 * @return bool
 	 */
-	public function filter_writable_props( $schema ) {
-		return empty( $schema['readonly'] );
+	public function filter_writable_props($schema) {
+		return empty($schema['readonly']);
 	}
 
 	/**
@@ -293,43 +293,43 @@ 
 	 * @param  WP_REST_Request $request Request object.
 	 * @return GetPaid_Data|WP_Error Data object or WP_Error.
 	 */
-	protected function prepare_item_for_database( $request ) {
+	protected function prepare_item_for_database($request) {
 
 		// Do we have an object?
-		if ( empty( $this->crud_class ) || ! class_exists( $this->crud_class ) ) {
-			return new WP_Error( 'no_crud_class', __( 'You need to specify a CRUD class for this controller', 'invoicing' ) );
+		if (empty($this->crud_class) || !class_exists($this->crud_class)) {
+			return new WP_Error('no_crud_class', __('You need to specify a CRUD class for this controller', 'invoicing'));
 		}
 
 		// Prepare the object.
-		$id        = isset( $request['id'] ) ? absint( $request['id'] ) : 0;
-		$object    = new $this->crud_class( $id );
+		$id        = isset($request['id']) ? absint($request['id']) : 0;
+		$object    = new $this->crud_class($id);
 
 		// Abort if an error exists.
-		if ( ! empty( $object->last_error ) ) {
-			return new WP_Error( 'invalid_item', $object->last_error );
+		if (!empty($object->last_error)) {
+			return new WP_Error('invalid_item', $object->last_error);
 		}
 
 		$schema    = $this->get_item_schema();
-		$data_keys = array_keys( array_filter( $schema['properties'], array( $this, 'filter_writable_props' ) ) );
+		$data_keys = array_keys(array_filter($schema['properties'], array($this, 'filter_writable_props')));
 
 		// Handle all writable props.
-		foreach ( $data_keys as $key ) {
-			$value = $request[ $key ];
+		foreach ($data_keys as $key) {
+			$value = $request[$key];
 
-			if ( ! is_null( $value ) ) {
-				switch ( $key ) {
+			if (!is_null($value)) {
+				switch ($key) {
 
 					case 'meta_data':
-						if ( is_array( $value ) ) {
-							foreach ( $value as $meta ) {
-								$object->update_meta_data( $meta['key'], $meta['value'], isset( $meta['id'] ) ? $meta['id'] : '' );
+						if (is_array($value)) {
+							foreach ($value as $meta) {
+								$object->update_meta_data($meta['key'], $meta['value'], isset($meta['id']) ? $meta['id'] : '');
 							}
 						}
 						break;
 
 					default:
-						if ( is_callable( array( $object, "set_{$key}" ) ) ) {
-							$object->{"set_{$key}"}( $value );
+						if (is_callable(array($object, "set_{$key}"))) {
+							$object->{"set_{$key}"}($value);
 						}
 						break;
 				}
@@ -338,7 +338,7 @@ 
 		}
 
 		// Filters an object before it is inserted via the REST API..
-		return apply_filters( "getpaid_rest_pre_insert_{$this->post_type}_object", $object, $request );
+		return apply_filters("getpaid_rest_pre_insert_{$this->post_type}_object", $object, $request);
 	}
 
 	/**
@@ -348,10 +348,10 @@ 
 	 * @param  GetPaid_Meta_Data[]    $meta_data  meta data objects.
 	 * @return array
 	 */
-	protected function prepare_object_meta_data( $meta_data ) {
+	protected function prepare_object_meta_data($meta_data) {
 		$meta = array();
 
-		foreach( $meta_data as $object ) {
+		foreach ($meta_data as $object) {
 			$meta[] = $object->get_data();
 		}
 
@@ -366,14 +366,14 @@ 
 	 * @param array            $fields Fields to include.
 	 * @return array
 	 */
-	protected function prepare_invoice_items( $invoice ) {
+	protected function prepare_invoice_items($invoice) {
 		$items = array();
 
-		foreach( $invoice->get_items() as $item ) {
+		foreach ($invoice->get_items() as $item) {
 
 			$item_data = $item->prepare_data_for_saving();
 
-			if ( 'amount' == $invoice->get_template() ) {
+			if ('amount' == $invoice->get_template()) {
 				$item_data['quantity'] = 1;
 			}
 
@@ -392,52 +392,52 @@ 
 	 * @param string           $context either view or edit.
 	 * @return array
 	 */
-	protected function prepare_object_data( $object, $fields, $context = 'view' ) {
+	protected function prepare_object_data($object, $fields, $context = 'view') {
 
 		$data = array();
 
 		// Handle all writable props.
-		foreach ( array_keys( $this->get_schema_properties() ) as $key ) {
+		foreach (array_keys($this->get_schema_properties()) as $key) {
 
 			// Abort if it is not included.
-			if ( ! empty( $fields ) && ! $this->is_field_included( $key, $fields ) ) {
+			if (!empty($fields) && !$this->is_field_included($key, $fields)) {
 				continue;
 			}
 
 			// Or this current object does not support the field.
-			if ( ! $this->object_supports_field( $object, $key ) ) {
+			if (!$this->object_supports_field($object, $key)) {
 				continue;
 			}
 
 			// Handle meta data.
-			if ( $key == 'meta_data' ) {
-				$data['meta_data'] = $this->prepare_object_meta_data( $object->get_meta_data() );
+			if ($key == 'meta_data') {
+				$data['meta_data'] = $this->prepare_object_meta_data($object->get_meta_data());
 				continue;
 			}
 
 			// Handle items.
-			if ( $key == 'items' && is_a( $object, 'WPInv_Invoice' )  ) {
-				$data['items'] = $this->prepare_invoice_items( $object );
+			if ($key == 'items' && is_a($object, 'WPInv_Invoice')) {
+				$data['items'] = $this->prepare_invoice_items($object);
 				continue;
 			}
 
 			// Booleans.
-			if ( is_callable( array( $object, $key ) ) ) {
-				$data[ $key ] = $object->$key( $context );
+			if (is_callable(array($object, $key))) {
+				$data[$key] = $object->$key($context);
 				continue;
 			}
 
 			// Get object value.
-			if ( is_callable( array( $object, "get_{$key}" ) ) ) {
-				$value = $object->{"get_{$key}"}( $context );
+			if (is_callable(array($object, "get_{$key}"))) {
+				$value = $object->{"get_{$key}"}($context);
 
 				// If the value is an instance of GetPaid_Data...
-				if ( is_a( $value, 'GetPaid_Data' ) ) {
-					$value = $value->get_data( $context );
+				if (is_a($value, 'GetPaid_Data')) {
+					$value = $value->get_data($context);
 				}
 
 				// For objects, retrieves it's properties.
-				$data[ $key ] = is_object( $value ) ? get_object_vars( $value ) :  $value ;
+				$data[$key] = is_object($value) ? get_object_vars($value) : $value;
 				continue;
 			}
 
@@ -454,8 +454,8 @@ 
 	 * @param  string       $field_key The key to check for.
 	 * @return bool
 	 */
-	public function object_supports_field( $object, $field_key ) {
-		return apply_filters( 'getpaid_rest_object_supports_key', true, $object, $field_key );
+	public function object_supports_field($object, $field_key) {
+		return apply_filters('getpaid_rest_object_supports_key', true, $object, $field_key);
 	}
 
 	/**
@@ -466,27 +466,27 @@ 
 	 * @param  WP_REST_Request $request Request object.
 	 * @return WP_REST_Response
 	 */
-	public function prepare_item_for_response( $object, $request ) {
-		remove_filter( 'rest_post_dispatch', 'rest_filter_response_fields', 10 );
+	public function prepare_item_for_response($object, $request) {
+		remove_filter('rest_post_dispatch', 'rest_filter_response_fields', 10);
 
 		$this->data_object = $object;
 
 		// Fetch the fields to include in this response.
-		$fields = $this->get_fields_for_response( $request );
+		$fields = $this->get_fields_for_response($request);
 
 		// Prepare object data.
-		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
-		$data    = $this->prepare_object_data( $object, $fields, $context );
-		$data    = $this->add_additional_fields_to_object( $data, $request );
-		$data    = $this->limit_object_to_requested_fields( $data, $fields );
-		$data    = $this->filter_response_by_context( $data, $context );
+		$context = !empty($request['context']) ? $request['context'] : 'view';
+		$data    = $this->prepare_object_data($object, $fields, $context);
+		$data    = $this->add_additional_fields_to_object($data, $request);
+		$data    = $this->limit_object_to_requested_fields($data, $fields);
+		$data    = $this->filter_response_by_context($data, $context);
 
 		// Prepare the response.
-		$response = rest_ensure_response( $data );
-		$response->add_links( $this->prepare_links( $object, $request ) );
+		$response = rest_ensure_response($data);
+		$response->add_links($this->prepare_links($object, $request));
 
 		// Filter item response.
-		return apply_filters( "getpaid_rest_prepare_{$this->post_type}_object", $response, $object, $request );
+		return apply_filters("getpaid_rest_prepare_{$this->post_type}_object", $response, $object, $request);
 	}
 
 }

includes/api/class-wpinv-rest-invoice-controller.php

Spacing +14 added lines, -14 removed lines

@@ -5,7 +5,7 @@ 
  * @version 1.0.19
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * REST API invoices controller class.
@@ -52,7 +52,7 @@ 
 
 
 				'customers' => array(
-					'description'       => __( 'Limit result set to invoices for specific user ids.', 'invoicing' ),
+					'description'       => __('Limit result set to invoices for specific user ids.', 'invoicing'),
 					'type'              => 'array',
 					'items'             => array(
 						'type'          => 'integer',
@@ -62,7 +62,7 @@ 
 				),
 
 				'exclude_customers'  	=> array(
-					'description' 		=> __( 'Exclude invoices to specific users.', 'invoicing' ),
+					'description' 		=> __('Exclude invoices to specific users.', 'invoicing'),
 					'type'        		=> 'array',
 					'items'       		=> array(
 						'type'          => 'integer',
@@ -72,7 +72,7 @@ 
 				),
 
 				'parent'  	            => array(
-					'description'       => __( 'Limit result set to those of particular parent IDs.', 'invoicing' ),
+					'description'       => __('Limit result set to those of particular parent IDs.', 'invoicing'),
 					'type'              => 'array',
 					'items'             => array(
 						'type'          => 'integer',
@@ -82,7 +82,7 @@ 
 				),
 
 				'parent_exclude'  	    => array(
-					'description'       => __( 'Limit result set to all items except those of a particular parent ID.', 'invoicing' ),
+					'description'       => __('Limit result set to all items except those of a particular parent ID.', 'invoicing'),
 					'type'              => 'array',
 					'items'             => array(
 						'type'          => 'integer',
@@ -96,7 +96,7 @@ 
 		);
 
 		// Filter collection parameters for the invoices controller.
-		return apply_filters( 'getpaid_rest_invoices_collection_params', $params, $this );
+		return apply_filters('getpaid_rest_invoices_collection_params', $params, $this);
 	}
 
 	/**
@@ -107,21 +107,21 @@ 
 	 * @param WP_REST_Request $request Request object.
 	 * @return array          $query_args
 	 */
-	protected function prepare_items_query( $prepared_args = array(), $request = null ) {
+	protected function prepare_items_query($prepared_args = array(), $request = null) {
 
-		$query_args = parent::prepare_items_query( $prepared_args );
+		$query_args = parent::prepare_items_query($prepared_args);
 
 		// Retrieve invoices for specific customers.
-		if ( ! empty( $request['customers'] ) ) {
+		if (!empty($request['customers'])) {
 			$query_args['author__in'] = $request['customers'];
 		}
 
 		// Skip invoices for specific customers.
-		if ( ! empty( $request['exclude_customers'] ) ) {
+		if (!empty($request['exclude_customers'])) {
 			$query_args['author__not_in'] = $request['exclude_customers'];
 		}
 
-		return apply_filters( 'getpaid_rest_invoices_prepare_items_query', $query_args, $request, $this );
+		return apply_filters('getpaid_rest_invoices_prepare_items_query', $query_args, $request, $this);
 
 	}
 
@@ -133,7 +133,7 @@ 
 	 * @return array A list of registered item statuses.
 	 */
 	public function get_post_statuses() {
-		return array_keys( wpinv_get_invoice_statuses( true ) );
+		return array_keys(wpinv_get_invoice_statuses(true));
 	}
 
 	/**
@@ -142,9 +142,9 @@ 
 	 * @param WPInv_Invoice $invoice Invoice to save.
 	 * @return WP_Error|WPInv_Invoice
 	 */
-	protected function save_object( $invoice ) {
+	protected function save_object($invoice) {
 		$invoice->recalculate_total();
-		return parent::save_object( $invoice );
+		return parent::save_object($invoice);
 	}
 
 }

includes/api/class-getpaid-rest-posts-controller.php

Spacing +127 added lines, -127 removed lines

@@ -8,7 +8,7 @@ 
  * @version 1.0.19
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * GetPaid REST Posts controller class.
@@ -38,9 +38,9 @@ 
 	 *
 	 * @see register_rest_route()
 	 */
-	public function register_namespace_routes( $namespace ) {
+	public function register_namespace_routes($namespace) {
 
-		parent::register_namespace_routes( $namespace );
+		parent::register_namespace_routes($namespace);
 
 		register_rest_route(
 			$namespace,
@@ -48,11 +48,11 @@ 
 			array(
 				array(
 					'methods'             => WP_REST_Server::EDITABLE,
-					'callback'            => array( $this, 'batch_items' ),
-					'permission_callback' => array( $this, 'batch_items_permissions_check' ),
-					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
+					'callback'            => array($this, 'batch_items'),
+					'permission_callback' => array($this, 'batch_items_permissions_check'),
+					'args'                => $this->get_endpoint_args_for_item_schema(WP_REST_Server::EDITABLE),
 				),
-				'schema' => array( $this, 'get_public_batch_schema' ),
+				'schema' => array($this, 'get_public_batch_schema'),
 			)
 		);
 
@@ -66,7 +66,7 @@ 
 	 * @param int    $object_id Post ID.
 	 * @return bool
 	 */
-	public function check_post_permissions( $context = 'read', $object_id = 0 ) {
+	public function check_post_permissions($context = 'read', $object_id = 0) {
 
 		$contexts = array(
 			'read'   => 'read_private_posts',
@@ -76,11 +76,11 @@ 
 			'batch'  => 'edit_others_posts',
 		);
 
-		$cap              = $contexts[ $context ];
-		$post_type_object = get_post_type_object( $this->post_type );
-		$permission       = current_user_can( $post_type_object->cap->$cap, $object_id );
+		$cap              = $contexts[$context];
+		$post_type_object = get_post_type_object($this->post_type);
+		$permission       = current_user_can($post_type_object->cap->$cap, $object_id);
 
-		return apply_filters( 'getpaid_rest_check_permissions', $permission, $context, $object_id, $this->post_type );
+		return apply_filters('getpaid_rest_check_permissions', $permission, $context, $object_id, $this->post_type);
 	}
 
 	/**
@@ -89,8 +89,8 @@ 
 	 * @param  WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|boolean
 	 */
-	public function get_items_permissions_check( $request ) {
-		return $this->check_post_permissions() ? true : new WP_Error( 'rest_cannot_view', __( 'Sorry, you cannot list resources.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+	public function get_items_permissions_check($request) {
+		return $this->check_post_permissions() ? true : new WP_Error('rest_cannot_view', __('Sorry, you cannot list resources.', 'invoicing'), array('status' => rest_authorization_required_code()));
 	}
 
 	/**
@@ -99,8 +99,8 @@ 
 	 * @param  WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|boolean
 	 */
-	public function create_item_permissions_check( $request ) {
-		return $this->check_post_permissions( 'create' ) ? true : new WP_Error( 'rest_cannot_create', __( 'Sorry, you are not allowed to create resources.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+	public function create_item_permissions_check($request) {
+		return $this->check_post_permissions('create') ? true : new WP_Error('rest_cannot_create', __('Sorry, you are not allowed to create resources.', 'invoicing'), array('status' => rest_authorization_required_code()));
 	}
 
 	/**
@@ -109,11 +109,11 @@ 
 	 * @param  WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|boolean
 	 */
-	public function get_item_permissions_check( $request ) {
-		$post = get_post( (int) $request['id'] );
+	public function get_item_permissions_check($request) {
+		$post = get_post((int) $request['id']);
 
-		if ( $post && ! $this->check_post_permissions( 'read', $post->ID ) ) {
-			return new WP_Error( 'rest_cannot_view', __( 'Sorry, you cannot view this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+		if ($post && !$this->check_post_permissions('read', $post->ID)) {
+			return new WP_Error('rest_cannot_view', __('Sorry, you cannot view this resource.', 'invoicing'), array('status' => rest_authorization_required_code()));
 		}
 
 		return true;
@@ -125,11 +125,11 @@ 
 	 * @param  WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|boolean
 	 */
-	public function update_item_permissions_check( $request ) {
-		$post = get_post( (int) $request['id'] );
+	public function update_item_permissions_check($request) {
+		$post = get_post((int) $request['id']);
 
-		if ( $post && ! $this->check_post_permissions( 'edit', $post->ID ) ) {
-			return new WP_Error( 'rest_cannot_edit', __( 'Sorry, you are not allowed to edit this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+		if ($post && !$this->check_post_permissions('edit', $post->ID)) {
+			return new WP_Error('rest_cannot_edit', __('Sorry, you are not allowed to edit this resource.', 'invoicing'), array('status' => rest_authorization_required_code()));
 		}
 
 		return true;
@@ -141,11 +141,11 @@ 
 	 * @param  WP_REST_Request $request Full details about the request.
 	 * @return bool|WP_Error
 	 */
-	public function delete_item_permissions_check( $request ) {
-		$post = get_post( (int) $request['id'] );
+	public function delete_item_permissions_check($request) {
+		$post = get_post((int) $request['id']);
 
-		if ( $post && ! $this->check_post_permissions( 'delete', $post->ID ) ) {
-			return new WP_Error( 'rest_cannot_delete', __( 'Sorry, you are not allowed to delete this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+		if ($post && !$this->check_post_permissions('delete', $post->ID)) {
+			return new WP_Error('rest_cannot_delete', __('Sorry, you are not allowed to delete this resource.', 'invoicing'), array('status' => rest_authorization_required_code()));
 		}
 
 		return true;
@@ -158,15 +158,15 @@ 
 	 *
 	 * @return boolean|WP_Error
 	 */
-	public function batch_items_permissions_check( $request ) {
-		return $this->check_post_permissions( 'batch' ) ? true : new WP_Error( 'rest_cannot_batch', __( 'Sorry, you are not allowed to batch manipulate this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+	public function batch_items_permissions_check($request) {
+		return $this->check_post_permissions('batch') ? true : new WP_Error('rest_cannot_batch', __('Sorry, you are not allowed to batch manipulate this resource.', 'invoicing'), array('status' => rest_authorization_required_code()));
 	}
 
 	/**
 	 * @deprecated
 	 */
-	public function get_post( $object_id ) {
-		return $this->get_object( $object_id );
+	public function get_post($object_id) {
+		return $this->get_object($object_id);
     }
 
 	/**
@@ -175,14 +175,14 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function get_item( $request ) {
+	public function get_item($request) {
 
 		// Fetch item.
-		$response = parent::get_item( $request );
+		$response = parent::get_item($request);
 
 		// (Maybe) add a link to the html pagee.
-		if ( $this->public && ! is_wp_error( $response ) ) {
-			$response->link_header( 'alternate', get_permalink( $this->data_object->get_id() ), array( 'type' => 'text/html' ) );
+		if ($this->public && !is_wp_error($response)) {
+			$response->link_header('alternate', get_permalink($this->data_object->get_id()), array('type' => 'text/html'));
 		}
 
 		return $response;
@@ -194,13 +194,13 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function create_item( $request ) {
+	public function create_item($request) {
 
 		// Create item.
-		$response = parent::create_item( $request );
+		$response = parent::create_item($request);
 
 		// Fire a hook after an item is created.
-		if ( ! is_wp_error( $response ) ) {
+		if (!is_wp_error($response)) {
 
 			/**
 			 * Fires after a single item is created or updated via the REST API.
@@ -209,7 +209,7 @@ 
 			 * @param WP_REST_Request $request   Request object.
 			 * @param boolean         $creating  True when creating item, false when updating.
 			 */
-			do_action( "getpaid_rest_insert_{$this->post_type}", $this->data_object, $request, true );
+			do_action("getpaid_rest_insert_{$this->post_type}", $this->data_object, $request, true);
 
 		}
 
@@ -223,13 +223,13 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function update_item( $request ) {
+	public function update_item($request) {
 
 		// Create item.
-		$response = parent::update_item( $request );
+		$response = parent::update_item($request);
 
 		// Fire a hook after an item is created.
-		if ( ! is_wp_error( $response ) ) {
+		if (!is_wp_error($response)) {
 
 			/**
 			 * Fires after a single item is created or updated via the REST API.
@@ -238,7 +238,7 @@ 
 			 * @param WP_REST_Request $request   Request object.
 			 * @param boolean         $creating  True when creating item, false when updating.
 			 */
-			do_action( "getpaid_rest_insert_{$this->post_type}", $this->data_object, $request, false );
+			do_action("getpaid_rest_insert_{$this->post_type}", $this->data_object, $request, false);
 
 		}
 
@@ -252,7 +252,7 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function get_items( $request ) {
+	public function get_items($request) {
 
 		$args                         = array();
 		$args['offset']               = $request['offset'];
@@ -266,17 +266,17 @@ 
 		$args['post_parent__in']      = $request['parent'];
 		$args['post_parent__not_in']  = $request['parent_exclude'];
 		$args['s']                    = $request['search'];
-		$args['post_status']          = wpinv_parse_list( $request['status'] );
+		$args['post_status']          = wpinv_parse_list($request['status']);
 
 		$args['date_query'] = array();
 
 		// Set before into date query. Date query must be specified as an array of an array.
-		if ( isset( $request['before'] ) ) {
+		if (isset($request['before'])) {
 			$args['date_query'][0]['before'] = $request['before'];
 		}
 
 		// Set after into date query. Date query must be specified as an array of an array.
-		if ( isset( $request['after'] ) ) {
+		if (isset($request['after'])) {
 			$args['date_query'][0]['after'] = $request['after'];
 		}
 
@@ -285,54 +285,54 @@ 
 		$args['fields']    = 'ids';
 
 		// Filter the query arguments for a request.
-		$args       = apply_filters( "getpaid_rest_{$this->post_type}_query", $args, $request );
-		$query_args = $this->prepare_items_query( $args, $request );
+		$args       = apply_filters("getpaid_rest_{$this->post_type}_query", $args, $request);
+		$query_args = $this->prepare_items_query($args, $request);
 
 		$posts_query = new WP_Query();
-		$query_result = $posts_query->query( $query_args );
+		$query_result = $posts_query->query($query_args);
 
 		$posts = array();
-		foreach ( $query_result as $post_id ) {
-			if ( ! $this->check_post_permissions( 'read', $post_id ) ) {
+		foreach ($query_result as $post_id) {
+			if (!$this->check_post_permissions('read', $post_id)) {
 				continue;
 			}
 
-			$data    = $this->prepare_item_for_response( $this->get_object( $post_id ), $request );
-			$posts[] = $this->prepare_response_for_collection( $data );
+			$data    = $this->prepare_item_for_response($this->get_object($post_id), $request);
+			$posts[] = $this->prepare_response_for_collection($data);
 		}
 
 		$page        = (int) $query_args['paged'];
 		$total_posts = $posts_query->found_posts;
 
-		if ( $total_posts < 1 ) {
+		if ($total_posts < 1) {
 			// Out-of-bounds, run the query again without LIMIT for total count.
-			unset( $query_args['paged'] );
+			unset($query_args['paged']);
 			$count_query = new WP_Query();
-			$count_query->query( $query_args );
+			$count_query->query($query_args);
 			$total_posts = $count_query->found_posts;
 		}
 
-		$max_pages = ceil( $total_posts / (int) $query_args['posts_per_page'] );
+		$max_pages = ceil($total_posts / (int) $query_args['posts_per_page']);
 
-		$response = rest_ensure_response( $posts );
-		$response->header( 'X-WP-Total', (int) $total_posts );
-		$response->header( 'X-WP-TotalPages', (int) $max_pages );
+		$response = rest_ensure_response($posts);
+		$response->header('X-WP-Total', (int) $total_posts);
+		$response->header('X-WP-TotalPages', (int) $max_pages);
 
 		$request_params = $request->get_query_params();
-		$base = add_query_arg( $request_params, rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ) );
+		$base = add_query_arg($request_params, rest_url(sprintf('/%s/%s', $this->namespace, $this->rest_base)));
 
-		if ( $page > 1 ) {
+		if ($page > 1) {
 			$prev_page = $page - 1;
-			if ( $prev_page > $max_pages ) {
+			if ($prev_page > $max_pages) {
 				$prev_page = $max_pages;
 			}
-			$prev_link = add_query_arg( 'page', $prev_page, $base );
-			$response->link_header( 'prev', $prev_link );
+			$prev_link = add_query_arg('page', $prev_page, $base);
+			$response->link_header('prev', $prev_link);
 		}
-		if ( $max_pages > $page ) {
+		if ($max_pages > $page) {
 			$next_page = $page + 1;
-			$next_link = add_query_arg( 'page', $next_page, $base );
-			$response->link_header( 'next', $next_link );
+			$next_link = add_query_arg('page', $next_page, $base);
+			$response->link_header('next', $next_link);
 		}
 
 		return $response;
@@ -344,26 +344,26 @@ 
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_REST_Response|WP_Error
 	 */
-	public function delete_item( $request ) {
+	public function delete_item($request) {
 
 		// Fetch the item.
-		$item = $this->get_object( $request['id'] );
-		if ( is_wp_error( $item ) ) {
+		$item = $this->get_object($request['id']);
+		if (is_wp_error($item)) {
 			return $item;
 		}
 
 		$supports_trash = EMPTY_TRASH_DAYS > 0;
 		$force          = $supports_trash && (bool) $request['force'];
 
-		if ( ! $this->check_post_permissions( 'delete', $item->ID ) ) {
-			return new WP_Error( "cannot_delete", __( 'Sorry, you are not allowed to delete this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+		if (!$this->check_post_permissions('delete', $item->ID)) {
+			return new WP_Error("cannot_delete", __('Sorry, you are not allowed to delete this resource.', 'invoicing'), array('status' => rest_authorization_required_code()));
 		}
 
-		$request->set_param( 'context', 'edit' );
-		$response = $this->prepare_item_for_response( $item, $request );
+		$request->set_param('context', 'edit');
+		$response = $this->prepare_item_for_response($item, $request);
 
-		if ( ! wp_delete_post( $item->ID, $force ) ) {
-			return new WP_Error( 'rest_cannot_delete', sprintf( __( 'The resource cannot be deleted.', 'invoicing' ), $this->post_type ), array( 'status' => 500 ) );
+		if (!wp_delete_post($item->ID, $force)) {
+			return new WP_Error('rest_cannot_delete', sprintf(__('The resource cannot be deleted.', 'invoicing'), $this->post_type), array('status' => 500));
 		}
 
 		return $response;
@@ -375,27 +375,27 @@ 
 	 * @param GetPaid_Data    $object GetPaid_Data object.
 	 * @return array Links for the given object.
 	 */
-	protected function prepare_links( $object ) {
+	protected function prepare_links($object) {
 
-		$links = parent::prepare_links( $object );
+		$links = parent::prepare_links($object);
 
-		if ( is_callable( array( $object, 'get_user_id' ) ) ) {
+		if (is_callable(array($object, 'get_user_id'))) {
 			$links['user'] = array(
-				'href'       => rest_url( 'wp/v2/users/' . call_user_func(  array( $object, 'get_user_id' )  ) ),
+				'href'       => rest_url('wp/v2/users/' . call_user_func(array($object, 'get_user_id'))),
 				'embeddable' => true,
 			);
 		}
 
-		if ( is_callable( array( $object, 'get_owner' ) ) ) {
-			$links['owner']  = array(
-				'href'       => rest_url( 'wp/v2/users/' . call_user_func(  array( $object, 'get_owner' )  ) ),
+		if (is_callable(array($object, 'get_owner'))) {
+			$links['owner'] = array(
+				'href'       => rest_url('wp/v2/users/' . call_user_func(array($object, 'get_owner'))),
 				'embeddable' => true,
 			);
 		}
 
-		if ( is_callable( array( $object, 'get_parent_id' ) ) && call_user_func(  array( $object, 'get_parent_id' )  ) ) {
-			$links['parent']  = array(
-				'href'       => rest_url( "$this->namespace/$this->rest_base/" . call_user_func(  array( $object, 'get_parent_id' )  ) ),
+		if (is_callable(array($object, 'get_parent_id')) && call_user_func(array($object, 'get_parent_id'))) {
+			$links['parent'] = array(
+				'href'       => rest_url("$this->namespace/$this->rest_base/" . call_user_func(array($object, 'get_parent_id'))),
 				'embeddable' => true,
 			);
 		}
@@ -411,27 +411,27 @@ 
 	 * @param WP_REST_Request $request Request object.
 	 * @return array          $query_args
 	 */
-	protected function prepare_items_query( $prepared_args = array(), $request = null ) {
+	protected function prepare_items_query($prepared_args = array(), $request = null) {
 
-		$valid_vars = array_flip( $this->get_allowed_query_vars() );
+		$valid_vars = array_flip($this->get_allowed_query_vars());
 		$query_args = array();
-		foreach ( $valid_vars as $var => $index ) {
-			if ( isset( $prepared_args[ $var ] ) ) {
-				$query_args[ $var ] = apply_filters( "getpaid_rest_query_var-{$var}", $prepared_args[ $var ], $index );
+		foreach ($valid_vars as $var => $index) {
+			if (isset($prepared_args[$var])) {
+				$query_args[$var] = apply_filters("getpaid_rest_query_var-{$var}", $prepared_args[$var], $index);
 			}
 		}
 
 		$query_args['ignore_sticky_posts'] = true;
 
-		if ( 'include' === $query_args['orderby'] ) {
+		if ('include' === $query_args['orderby']) {
 			$query_args['orderby'] = 'post__in';
-		} elseif ( 'id' === $query_args['orderby'] ) {
+		} elseif ('id' === $query_args['orderby']) {
 			$query_args['orderby'] = 'ID'; // ID must be capitalized.
-		} elseif ( 'slug' === $query_args['orderby'] ) {
+		} elseif ('slug' === $query_args['orderby']) {
 			$query_args['orderby'] = 'name';
 		}
 
-		return apply_filters( 'getpaid_rest_prepare_items_query', $query_args, $request, $this );
+		return apply_filters('getpaid_rest_prepare_items_query', $query_args, $request, $this);
 
 	}
 
@@ -450,12 +450,12 @@ 
 		 *
 		 * @param array  Array of allowed WP_Query query vars.
 		 */
-		$valid_vars = apply_filters( 'query_vars', $wp->public_query_vars );
+		$valid_vars = apply_filters('query_vars', $wp->public_query_vars);
 
-		$post_type_obj = get_post_type_object( $this->post_type );
-		if ( current_user_can( $post_type_obj->cap->edit_posts ) ) {
-			$private = apply_filters( 'getpaid_rest_private_query_vars', $wp->private_query_vars );
-			$valid_vars = array_merge( $valid_vars, $private );
+		$post_type_obj = get_post_type_object($this->post_type);
+		if (current_user_can($post_type_obj->cap->edit_posts)) {
+			$private = apply_filters('getpaid_rest_private_query_vars', $wp->private_query_vars);
+			$valid_vars = array_merge($valid_vars, $private);
 		}
 
 		// Define our own in addition to WP's normal vars.
@@ -477,10 +477,10 @@ 
 			'meta_compare',
 			'meta_value_num',
 		);
-		$valid_vars = array_merge( $valid_vars, $rest_valid );
+		$valid_vars = array_merge($valid_vars, $rest_valid);
 
 		// Filter allowed query vars for the REST API.
-		$valid_vars = apply_filters( 'getpaid_rest_query_vars', $valid_vars, $this );
+		$valid_vars = apply_filters('getpaid_rest_query_vars', $valid_vars, $this);
 
 		return $valid_vars;
 	}
@@ -499,31 +499,31 @@ 
 			array(
 				'status' => array(
 					'default'           => $this->get_post_statuses(),
-					'description'       => __( 'Limit result set to resources assigned one or more statuses.', 'invoicing' ),
-					'type'              => array( 'array', 'string' ),
+					'description'       => __('Limit result set to resources assigned one or more statuses.', 'invoicing'),
+					'type'              => array('array', 'string'),
 					'items'             => array(
 						'enum'          => $this->get_post_statuses(),
 						'type'          => 'string',
 					),
 					'validate_callback' => 'rest_validate_request_arg',
-					'sanitize_callback' => array( $this, 'sanitize_post_statuses' ),
+					'sanitize_callback' => array($this, 'sanitize_post_statuses'),
 				),
 				'after' => array(
-					'description'        => __( 'Limit response to resources created after a given ISO8601 compliant date.', 'invoicing' ),
+					'description'        => __('Limit response to resources created after a given ISO8601 compliant date.', 'invoicing'),
 					'type'               => 'string',
 					'format'             => 'string',
 					'validate_callback'  => 'rest_validate_request_arg',
 					'sanitize_callback'  => 'sanitize_text_field',
 				),
 				'before' => array(
-					'description'        => __( 'Limit response to resources created before a given ISO8601 compliant date.', 'invoicing' ),
+					'description'        => __('Limit response to resources created before a given ISO8601 compliant date.', 'invoicing'),
 					'type'               => 'string',
 					'format'             => 'string',
 					'validate_callback'  => 'rest_validate_request_arg',
 					'sanitize_callback'  => 'sanitize_text_field',
 				),
 				'exclude' => array(
-					'description'       => __( 'Ensure result set excludes specific IDs.', 'invoicing' ),
+					'description'       => __('Ensure result set excludes specific IDs.', 'invoicing'),
 					'type'              => 'array',
 					'items'             => array(
 						'type'          => 'integer',
@@ -533,7 +533,7 @@ 
 					'validate_callback' => 'rest_validate_request_arg',
 				),
 				'include' => array(
-					'description'       => __( 'Limit result set to specific ids.', 'invoicing' ),
+					'description'       => __('Limit result set to specific ids.', 'invoicing'),
 					'type'              => 'array',
 					'items'             => array(
 						'type'          => 'integer',
@@ -543,20 +543,20 @@ 
 					'validate_callback' => 'rest_validate_request_arg',
 				),
 				'offset' => array(
-					'description'        => __( 'Offset the result set by a specific number of items.', 'invoicing' ),
+					'description'        => __('Offset the result set by a specific number of items.', 'invoicing'),
 					'type'               => 'integer',
 					'sanitize_callback'  => 'absint',
 					'validate_callback'  => 'rest_validate_request_arg',
 				),
 				'order' => array(
-					'description'        => __( 'Order sort attribute ascending or descending.', 'invoicing' ),
+					'description'        => __('Order sort attribute ascending or descending.', 'invoicing'),
 					'type'               => 'string',
 					'default'            => 'desc',
-					'enum'               => array( 'asc', 'desc' ),
+					'enum'               => array('asc', 'desc'),
 					'validate_callback'  => 'rest_validate_request_arg',
 				),
 				'orderby' => array(
-					'description'        => __( 'Sort collection by object attribute.', 'invoicing' ),
+					'description'        => __('Sort collection by object attribute.', 'invoicing'),
 					'type'               => 'string',
 					'default'            => 'date',
 					'enum'               => array(
@@ -583,25 +583,25 @@ 
 	public function get_item_schema() {
 
 		// Maybe retrieve the schema from cache.
-		if ( ! empty( $this->schema ) ) {
-			return $this->add_additional_fields_schema( $this->schema );
+		if (!empty($this->schema)) {
+			return $this->add_additional_fields_schema($this->schema);
 		}
 
-		$type   = str_replace( 'wpi_', '', $this->post_type );
+		$type   = str_replace('wpi_', '', $this->post_type);
 		$schema = array(
 			'$schema'    => 'http://json-schema.org/draft-04/schema#',
 			'title'      => $this->post_type,
 			'type'       => 'object',
-			'properties' => wpinv_get_data( "$type-schema" ),
+			'properties' => wpinv_get_data("$type-schema"),
 		);
 
 		// Filters the invoice schema for the REST API.
-        $schema = apply_filters( "wpinv_rest_{$type}_schema", $schema );
+        $schema = apply_filters("wpinv_rest_{$type}_schema", $schema);
 
 		// Cache the invoice schema.
 		$this->schema = $schema;
 
-		return $this->add_additional_fields_schema( $this->schema );
+		return $this->add_additional_fields_schema($this->schema);
 	}
 
 	/**
@@ -614,8 +614,8 @@ 
 	 * @param string          $parameter Additional parameter to pass to validation.
 	 * @return array|WP_Error A list of valid statuses, otherwise WP_Error object.
 	 */
-	public function sanitize_post_statuses( $statuses, $request, $parameter ) {
-		return array_intersect( wp_parse_slug_list( $statuses ), $this->get_post_statuses() );
+	public function sanitize_post_statuses($statuses, $request, $parameter) {
+		return array_intersect(wp_parse_slug_list($statuses), $this->get_post_statuses());
 	}
 
 	/**
@@ -637,9 +637,9 @@ 
 	 * @param  string       $field_key The key to check for.
 	 * @return bool
 	 */
-	public function object_supports_field( $object, $field_key ) {
-		$supports = parent::object_supports_field( $object, $field_key );
-		return apply_filters( "getpaid_rest_{$this->post_type}_object_supports_key", $supports, $object, $field_key );
+	public function object_supports_field($object, $field_key) {
+		$supports = parent::object_supports_field($object, $field_key);
+		return apply_filters("getpaid_rest_{$this->post_type}_object_supports_key", $supports, $object, $field_key);
 	}
 
 }