installed plugin Easy Digital Downloads version 3.1.0.3

wp-content/plugins/easy-digital-downloads/includes/utils/exceptions/class-attribute-not-found.php

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+<?php
+/**
+ * Attribute_Not_Found exception class
+ *
+ * @package     EDD
+ * @subpackage  Classes/Utilities
+ * @copyright   Copyright (c) 2018, Easy Digital Downloads, LLC
+ * @license     http://opensource.org/licenses/gpl-2.0.php GNU Public License
+ * @since       3.0
+ */
+namespace EDD\Utils\Exceptions;
+
+/**
+ * Implements an Attribute_Not_Found exception thrown when a given
+ * attribute is not found.
+ *
+ * @since 3.0
+ *
+ * @see \OutOfBoundsException
+ * @see \EDD_Exception
+ */
+class Attribute_Not_Found extends \OutOfBoundsException implements \EDD_Exception {
+
+	/**
+	 * Retrieves an informed Attribute_Not_Found instance via late-static binding.
+	 *
+	 * @since 3.0
+	 *
+	 * @param string     $attribute_name Attribute resulting in the exception.
+	 * @param string     $collection     Collection the attribute belongs to.
+	 * @param int        $code           Optional. Exception code. Default null.
+	 * @param \Exception $previous       Optional. Previous exception (used for chaining).
+	 *                                   Default null.
+	 * @return \EDD\Utils\Exceptions\Attribute_Not_Found Exception instance.
+	 */
+	public static function from_attr( $attribute_name, $collection, $code = null, $previous = null ) {
+		$message = sprintf( 'The \'%1$s\' attribute does not exist for \'%2$s\'.',
+			$attribute_name,
+			$collection
+		);
+
+		return new static( $message, $code, $previous);
+	}
+
+}