[TASK] Use IDs instead of objects

Classes/SGalinski/TypoScriptReferenceFrontend/Domain/Model/Attribute.php

@@ -55,12 +55,12 @@ class Attribute {
 	private $typo3Group = Attribute::NORMAL_GROUP;
 
 	/**
-	 * @var Attribute
+	 * @var int
 	 */
 	private $type;
 
 	/**
-	 * @var Attribute
+	 * @var int
 	 */
 	private $parent;
 
@@ -204,7 +204,7 @@ class Attribute {
 	/**
 	 * Set parent
 	 *
-	 * @param Attribute $parent
+	 * @param int $parent
 	 * @return Attribute
 	 */
 	public function setParent($parent) {
@@ -214,9 +214,9 @@ class Attribute {
 	}
 
 	/**
-	 * Get parent
+	 * Get parent id.
 	 *
-	 * @return Attribute
+	 * @return int
 	 */
 	public function getParent() {
 		return $this->parent;
@@ -295,14 +295,14 @@ class Attribute {
 	}
 
 	/**
-	 * @return Attribute
+	 * @return int
 	 */
 	public function getType() {
 		return $this->type;
 	}
 
 	/**
-	 * @param Attribute $type
+	 * @param int $type
 	 * @return Attribute
 	 */
 	public function setType($type) {
@@ -354,10 +354,10 @@ class Attribute {
 			$attributeArray ['maxVersion'] = $this->maxVersion;
 		}
 		if (isset($this->parent)) {
-			$attributeArray ['parent'] = $this->parent->getId();
+			$attributeArray ['parent'] = $this->parent;
 		}
 		if (isset($this->type)) {
-			$attributeArray ['type'] = $this->type->getId();
+			$attributeArray ['type'] = $this->type;
 		}
 		if (isset($this->typo3Group)) {
 			$attributeArray ['typo3Group'] = $this->typo3Group;
@@ -408,14 +408,12 @@ class Attribute {
 			$this->maxVersion = NULL;
 		}
 		if (isset($attribute->parent)) {
-			$this->parent = new Attribute();
-			$this->parent->setId($attribute->parent);
+			$this->parent = $attribute->parent;
 		} else {
 			$this->parent = NULL;
 		}
 		if (isset($attribute->type)) {
-			$this->type = new Attribute();
-			$this->type->setId($attribute->type);
+			$this->type = $attribute->type;
 		} else {
 			$this->type = NULL;
 		}