at the end of the day, it was inevitable
This commit is contained in:
Mo Elzubeir
@@ -0,0 +1,221 @@
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<?php
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namespace CacheBundle\Repository;
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use CacheBundle\Entity\Category;
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use Doctrine\DBAL\Driver\Connection;
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use Doctrine\ORM\EntityRepository;
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/**
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* Class CategoryRepository
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* @package CacheBundle\Repository
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*/
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class CategoryRepository extends EntityRepository
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{
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/**
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* Get single entity from repository.
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*
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* @param integer $id A Entity instance id.
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* @param string $method A CRUD method name.
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*
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* @return Category|null
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*/
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public function getOne($id, $method)
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{
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$expr = $this->_em->getExpressionBuilder();
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$condition = $expr->andX($expr->eq('Category.id', ':id'));
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$parameters = [ 'id' => $id ];
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if ($method !== 'get') {
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$condition->add($expr->eq('Category.internal', false));
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}
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return $this->createQueryBuilder('Category')
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->addSelect('partial Query.{id, raw, status}')
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->where($condition)
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->setParameters($parameters)
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->getQuery()
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->getOneOrNullResult();
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}
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/**
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* Compute feed count in specified category and all childes categories.
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*
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* @param integer $id A Category entity id.
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*
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* @return integer
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*/
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public function computeFeedCounts($id)
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{
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return (int) $this->_em->getConnection()->fetchColumn("
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SELECT COUNT(feeds.id)
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FROM feeds
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WHERE
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category_id in (
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SELECT id
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FROM (
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SELECT *
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FROM categories
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ORDER BY parent_id, id
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) categories_sorted,
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(SELECT @pv := '{$id}') initialisation
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WHERE
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(
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FIND_IN_SET(parent_id, @pv) > 0
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OR id = {$id}
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)
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AND @pv := CONCAT(@pv, ',', id)
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)
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");
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}
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/**
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* Export all feeds inside this category.
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*
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* @param integer $category A Category entity id.
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* @param boolean $export Export all feeds if true and unexport otherwise.
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*
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* @return void
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*/
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public function exportFeedsIn($category, $export = true)
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{
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$this->_em->getConnection()->transactional(function (Connection $conn) use ($category, $export) {
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$conn->exec(sprintf("
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UPDATE feeds
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SET exported = %d
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WHERE
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category_id in (
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SELECT id
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FROM (
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SELECT *
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FROM categories
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ORDER BY parent_id, id
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) categories_sorted,
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(SELECT @pv := '%s') initialisation
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WHERE
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(
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FIND_IN_SET(parent_id, @pv) > 0
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OR id = %s
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)
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AND @pv := CONCAT(@pv, ',', id)
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)
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", $export, $category, $category));
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$conn->exec(sprintf("
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UPDATE categories
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SET exported = %d
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WHERE
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id in (
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SELECT id
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FROM (
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SELECT *
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FROM categories
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ORDER BY parent_id, id
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) categories_sorted,
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(SELECT @pv := '%s') initialisation
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WHERE
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(
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FIND_IN_SET(parent_id, @pv) > 0
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OR id = %s
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)
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AND @pv := CONCAT(@pv, ',', id)
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)
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", $export, $category, $category));
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});
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}
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/**
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* Get active category.
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*
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* @param integer $id A Category entity id.
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* @param integer $user Filter categories by specified owner if set.
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* @param string|array $type Filter by category types.
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*
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* @return Category|null
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*/
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public function get($id, $user = null, $type = null)
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{
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$expr = $this->_em->getExpressionBuilder();
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$condition = $expr->andX($expr->eq('Category.id', ':id'));
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$parameters = [ 'id' => $id ];
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if ($type) {
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$type = (array) $type;
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$condition->add($expr->in('Category.type', (array) $type));
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}
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if ($user !== null) {
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$condition->add($expr->eq('Category.user', ':user'));
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$parameters['user'] = $user;
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}
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return $this->createQueryBuilder('Category')
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->where($condition)
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->setParameters($parameters)
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->getQuery()
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->getOneOrNullResult();
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}
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/**
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* Get array of specified user categories.
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*
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* @param integer $user A User entity id.
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*
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* @return Category[]
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*/
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public function getList($user)
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{
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$expr = $this->_em->getExpressionBuilder();
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return $this->createQueryBuilder('Category')
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->select(
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'partial Category.{id, name, type}',
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'partial Child.{id, name, type}',
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'Feed'
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)
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->leftJoin('Category.parent', 'Parent')
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->leftJoin('Category.childes', 'Child')
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->leftJoin('Category.feeds', 'Feed')
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->where($expr->andX(
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$expr->eq('Category.user', ':user'),
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$expr->isNull('Category.parent')
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))
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->setParameter('user', $user)
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->getQuery()
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->getResult();
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}
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/**
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* Check that specified 'child' category is child of 'parent'.
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*
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* @param integer $child A Category entity id which may by child.
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* @param integer $parent A Category entity id which must by parent of
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* specified child.
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*
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* @return boolean
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*/
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public function isChildOf($child, $parent)
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{
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//
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// TODO: May be exists more efficient way to do it.
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//
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$position = (int) $this->_em
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->getConnection()
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->fetchColumn("
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SELECT
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FIND_IN_SET({$child}, lvl) AS result
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FROM (
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SELECT
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GROUP_CONCAT(lvl SEPARATOR ',') AS lvl
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FROM (
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SELECT @parent := (SELECT GROUP_CONCAT(id SEPARATOR ',')
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FROM categories
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WHERE FIND_IN_SET(parent_id, @parent)
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) AS lvl FROM categories JOIN (SELECT @parent := {$parent}) tmp ) a ) b;
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");
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return $position !== 0;
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}
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}
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