/**
* Adds equipment to invoice
*
* @param RM_Holder_iHolderable $obEntity
* @return int
*/
public function addEntity(RM_Holder_iHolderable $obEntity)
{
if (!$this->canChangeItemState()) {
return FALSE;
}
$this->_items();
if ($this->is_deleted || $this->state == RM_Holder_Invoice_State::CLOSED) {
throw new RM_Base_Exception_BadUsage(__METHOD__ . ': you can\'t add "entity" to closed invoice');
}
if ($this->_mapper->_checkInvoiceNotSaved($this)) {
$this->RM_Base_Exception_BadUsage(__METHOD__ . ': you can\'t add "entity" to not saved invoice');
}
if ($this->_mapper->_checkInOtherOpenedInvoice($this, $obEntity)) {
throw new RM_Base_Exception_BadUsage(__METHOD__ . ': you can\'t add "entity" from other open invoice');
}
$obEntity->setInvoice($this);
$obEntity->save();
return $this->_mapper->createInvoiceItem($this->_items, $this, $obEntity);
}