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libraries/fof40/Model/DataModel/Behaviour/Created.php

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+<?php
+/**
+ * @package   FOF
+ * @copyright Copyright (c)2010-2022 Nicholas K. Dionysopoulos / Akeeba Ltd
+ * @license   GNU General Public License version 3, or later
+ */
+
+namespace FOF40\Model\DataModel\Behaviour;
+
+defined('_JEXEC') || die;
+
+use FOF40\Event\Observer;
+use FOF40\Model\DataModel;
+
+/**
+ * FOF model behavior class to updated the created_by and created_on fields on newly created records.
+ *
+ * This behaviour is added to DataModel by default. If you want to remove it you need to do
+ * $this->behavioursDispatcher->removeBehaviour('Created');
+ *
+ * @since  3.0
+ */
+class Created extends Observer
+{
+	/**
+	 * Add the created_on and created_by fields in the fieldsSkipChecks list of the model. We expect them to be empty
+	 * so that we can fill them in through this behaviour.
+	 *
+	 * @param   DataModel  $model
+	 */
+	public function onBeforeCheck(DataModel &$model)
+	{
+		$model->addSkipCheckField('created_on');
+		$model->addSkipCheckField('created_by');
+	}
+
+	/**
+	 * @param   DataModel  $model
+	 * @param   \stdClass  $dataObject
+	 */
+	public function onBeforeCreate(DataModel &$model, &$dataObject)
+	{
+		// Handle the created_on field
+		if ($model->hasField('created_on'))
+		{
+			$nullDate   = $model->isNullableField('created_on') ? null : $model->getDbo()->getNullDate();
+			$created_on = $model->getFieldValue('created_on');
+
+			if (empty($created_on) || ($created_on == $nullDate))
+			{
+				$model->setFieldValue('created_on', $model->getContainer()->platform->getDate()->toSql(false, $model->getDbo()));
+
+				$createdOnField              = $model->getFieldAlias('created_on');
+				$dataObject->$createdOnField = $model->getFieldValue('created_on');
+			}
+		}
+
+		// Handle the created_by field
+		if ($model->hasField('created_by'))
+		{
+			$created_by = $model->getFieldValue('created_by');
+
+			if (empty($created_by))
+			{
+				$model->setFieldValue('created_by', $model->getContainer()->platform->getUser()->id);
+
+				$createdByField              = $model->getFieldAlias('created_by');
+				$dataObject->$createdByField = $model->getFieldValue('created_by');
+			}
+		}
+	}
+}