fix comment

Co-authored-by: Thomas Casteleyn <thomas.casteleyn@super-visions.com>

application/cmdbabstract.class.inc.php

@@ -175,6 +175,10 @@ abstract class cmdbAbstractObject extends CMDBObject implements iDisplay
 	 */
 	protected $sDisplayMode;
 	protected $aFieldsMap;
+    /**
+     * @var array Store posted values in order to be used in GetAttributeFlags
+     */
+    protected $aPostedValues = [];
 
 	/**
 	 * If true, bypass IsActionAllowedOnAttribute when writing this object
@@ -3794,6 +3798,32 @@ HTML;
 		return $aWriteableAttList;
 	}
 
+    /**
+     * function to test if the posted value or if not exists the existing value matches the expected value
+     * this is used to check the current value in GetAttributeFlags function (useful to manage dynamic readonly attributes)
+     * @param $sAttCode
+     */
+    public function GetCurrentValueInScreen($sAttCode)
+    {
+        if (array_key_exists($sAttCode, $this->aPostedValues)) {
+            return $this->aPostedValues[$sAttCode];
+        }
+        return $this->Get($sAttCode);
+    }
+
+    /*
+     * This function checks if the value of the attribute has been modified in screen
+     * this is used to check if field has been modified in GetAttributeFlags function (useful to manage dynamic readonly attributes)
+     * @param $sAttCode
+     */
+    public function IsModifiedValueInScreen($sAttCode)
+    {
+        if (array_key_exists($sAttCode, $this->aPostedValues)) {
+            return $this->aPostedValues[$sAttCode] != $this->Get($sAttCode);
+        }
+        return false;
+    }
+
     /**
 	 * Compute the attribute flags depending on the object state
 	 */
@@ -3986,6 +4016,7 @@ HTML;
 
 		$aErrors = [];
 		$aFinalValues = [];
+		$this->aPostedValues = $aValues; // Store the values for later use (e.g. in GetAttributeFlags)
 		foreach ($this->GetWriteableAttList(array_keys($aValues), $aErrors, $aAttFlags) as $sAttCode => $oAttDef) {
 			$aFinalValues[$sAttCode] = $aValues[$sAttCode];
 		}