/**
* Initialize model comments and return comment collection
*
* @return \Magento\Sales\Model\Resource\Order\Comment\Collection\AbstractCollection
* @throws \Magento\Framework\Exception\LocalizedException
*/
public function getComments()
{
if ($this->_commentCollection === null) {
$entity = $this->getEntity();
if ($entity instanceof \Magento\Sales\Model\Order\Invoice) {
$this->_commentCollection = $this->_invoiceCollectionFactory->create();
} elseif ($entity instanceof \Magento\Sales\Model\Order\Creditmemo) {
$this->_commentCollection = $this->_memoCollectionFactory->create();
} elseif ($entity instanceof \Magento\Sales\Model\Order\Shipment) {
$this->_commentCollection = $this->_shipmentCollectionFactory->create();
} else {
throw new \Magento\Framework\Exception\LocalizedException(__('We found an invalid entity model.'));
}
$this->_commentCollection->setParentFilter($entity)->setCreatedAtOrder()->addVisibleOnFrontFilter();
}
return $this->_commentCollection;
}
/**
* Return invoice comments
*
* @return \Magento\Sales\Api\Data\InvoiceCommentInterface[]
*/
public function getComments()
{
if ($this->getData(InvoiceInterface::COMMENTS) === null && $this->getId()) {
$collection = $this->_commentCollectionFactory->create()->setInvoiceFilter($this->getId());
foreach ($collection as $comment) {
$comment->setInvoice($this);
}
$this->setData(InvoiceInterface::COMMENTS, $collection->getItems());
}
return $this->getData(InvoiceInterface::COMMENTS);
}
/**
* @param bool $reload
* @return \Magento\Sales\Model\Resource\Order\Invoice\Comment\Collection
*/
public function getCommentsCollection($reload = false)
{
if (is_null($this->_comments) || $reload) {
$this->_comments = $this->_commentCollectionFactory->create()->setInvoiceFilter($this->getId())->setCreatedAtOrder();
/**
* When invoice created with adding comment, comments collection
* must be loaded before we added this comment.
*/
$this->_comments->load();
if ($this->getId()) {
foreach ($this->_comments as $comment) {
$comment->setInvoice($this);
}
}
}
return $this->_comments;
}