ActualEntitySelector::setEntity

public function setEntity($entityTypeId, $entityId, $skipRanking = false)
{
	$entityTypeId = (int)$entityTypeId;
	$entityId = (int)$entityId;
	$isEntityTypeDynamics = \CCrmOwnerType::isUseDynamicTypeBasedApproach($entityTypeId);

	foreach($this->entities as $entity)
	{
		if (empty($entity['IS_PRIMARY']))
		{
			continue;
		}

		if ($entity['TYPE_ID'] !== $entityTypeId)
		{
			if (!$isEntityTypeDynamics || $entity['CODE'] !== 'dynamics')
			{
				continue;
			}
		}

		// check with lead type
		if ($entityTypeId === \CCrmOwnerType::Lead)
		{
			$isCurrentLeadRC = $entity['CODE'] == 'returnCustomerLeads';
			$leadRow = LeadTable::getRow([
				'select' => ['ID', 'IS_RETURN_CUSTOMER', 'CONTACT_ID', 'COMPANY_ID'],
				'filter' => ['=ID' => $entityId]
			]);
			$isLeadRC = $leadRow['IS_RETURN_CUSTOMER'] === 'Y';
			if ($isCurrentLeadRC != $isLeadRC)
			{
				continue;
			}

			if ($isLeadRC)
			{
				if ($leadRow['CONTACT_ID'] && !$this->getContactId())
				{
					$this->setEntity(\CCrmOwnerType::Contact, $leadRow['CONTACT_ID'], true);
				}
				if ($leadRow['COMPANY_ID'] && !$this->getCompanyId())
				{
					$this->setEntity(\CCrmOwnerType::Company, $leadRow['COMPANY_ID'], true);
				}
			}

			$skipRanking = true;
		}
		elseif ($entityTypeId === \CCrmOwnerType::Deal)
		{
			$dealRows = DealTable::getList([
				'select' => ['ID', 'CONTACT_ID', 'COMPANY_ID'],
				'filter' => ['=ID' => $entityId],
				'limit' => 3
			]);
			foreach ($dealRows as $dealRow)
			{
				if ($dealRow['CONTACT_ID'] && !$this->getContactId())
				{
					$this->setEntity(\CCrmOwnerType::Contact, $dealRow['CONTACT_ID'], true);
				}
				if ($dealRow['COMPANY_ID'] && !$this->getCompanyId())
				{
					$this->setEntity(\CCrmOwnerType::Company, $dealRow['COMPANY_ID'], true);
				}
			}

			$skipRanking = true;
		}
		elseif ($entityTypeId === \CCrmOwnerType::Order)
		{
			$orderRows = OrderContactCompanyTable::getList([
				'select' => ['ENTITY_TYPE_ID', 'ENTITY_ID'],
				'filter' => [
					'=ORDER_ID' => $entityId,
					'=IS_PRIMARY' => 'Y',
					'=ENTITY_TYPE_ID' => [\CCrmOwnerType::Contact, \CCrmOwnerType::Company],
				],
				'limit' => 3
			]);
			foreach ($orderRows as $orderRow)
			{
				if ($orderRow['ENTITY_TYPE_ID'] == \CCrmOwnerType::Contact && !$this->getContactId())
				{
					$this->setEntity(\CCrmOwnerType::Contact, $orderRow['ENTITY_ID'], true);
				}
				if ($orderRow['ENTITY_TYPE_ID'] == \CCrmOwnerType::Company && !$this->getCompanyId())
				{
					$this->setEntity(\CCrmOwnerType::Company, $orderRow['ENTITY_ID'], true);
				}
			}

			$skipRanking = true;
		}
		elseif ($isEntityTypeDynamics)
		{
			$dynamicFactory = Crm\Service\Container::getInstance()->getFactory($entityTypeId);
			$dynamicItem = $dynamicFactory->getItem($entityId);
			if (!$dynamicItem)
			{
				continue;
			}

			$this->setDynamicTypeId($entityTypeId);
			if ($dynamicItem->getCompanyId())
			{
				$this->setEntity(\CCrmOwnerType::Company, $dynamicItem->getCompanyId(), true);
			}

			$count = 3;
			foreach ($dynamicItem->getContacts() as $contact)
			{
				$this->setEntity(\CCrmOwnerType::Contact, $contact->getId(), true);
				if (!--$count)
				{
					break;
				}
			}

			$skipRanking = true;
		}

		$this->set($entity['CODE'], $entityId,
			[
				'skipRanking' => $skipRanking,
				'skipDuplicates' => true,
			]
		);
	}

	return $this;
}