Add category and get_category method

app/fax_queue/resources/classes/fax_queue.php

@@ -34,6 +34,7 @@ class fax_queue {
 	 */
 	const app_name = 'fax_queue';
 	const app_uuid = '3656287f-4b22-4cf1-91f6-00386bf488f4';
+	const app_category = 'queue';
 
 	/**
 	 * Set in the constructor. Must be a database object and cannot be null.
@@ -55,7 +56,6 @@ class fax_queue {
 	 */
 	private $name;
 	private $table;
-	private $category;
 	private $toggle_field;
 	private $toggle_values;
 	private $location;
@@ -78,12 +78,20 @@ class fax_queue {
 		//assign the variables
 		$this->name          = 'fax_queue';
 		$this->table         = 'fax_queue';
-		$this->category      = 'queue';
 		$this->toggle_field  = '';
 		$this->toggle_values = ['true', 'false'];
 		$this->location      = 'fax_queue.php';
 	}
 
+	/**
+	 * Get the category of this class.
+	 *
+	 * @return string The constant category value.
+	 */
+	public static function get_category(): string {
+		return self::app_category;
+	}
+
 	/**
 	 * Deletes one or more records.
 	 *
@@ -291,7 +299,6 @@ class fax_queue {
 
 			//copy the checked records
 			if (is_array($records) && @sizeof($records) != 0) {
-
 				//get checked records
 				foreach ($records as $record) {
 					if ($record['checked'] == 'true' && is_uuid($record['fax_queue_uuid'])) {