OCA\Circles\Db\CoreRequestBuilder

Complexity

Total Complexity

41

Size/Duplication

Total Lines	445
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

26 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	10	1
A	limitToId()	0	3	1
A	limitToUniqueId()	0	3	1
A	limitToAddressBookId()	0	3	1
A	limitToContactGroup()	0	3	1
A	limitToContactId()	0	3	1
A	limitToToken()	0	3	1
A	limitToUserId()	0	3	1
A	limitToUserType()	0	3	1
A	limitToCircleId()	0	3	1
A	limitToShareId()	0	3	1
A	limitToShortenUniqueId()	0	12	2
A	limitToGroupId()	0	3	1
A	limitToName()	0	3	1
A	limitToStatus()	0	3	1
A	limitToShareType()	0	3	1
A	limitToShareWith()	0	3	1
A	limitToLevel()	0	17	4
A	generateLimitToLevelMultipleTableRequest()	0	13	4
A	limitToMembersAndAlmost()	0	12	2
A	limitToDBField()	0	5	2
A	limitToDBFieldOrGreater()	0	5	2
A	limitToNCGroupUser()	0	15	3
A	rightJoinCircles()	0	14	2
A	leftJoinCircle()	0	21	2
A	leftJoinNCGroupAndUser()	0	26	2

<?php
/**
 * Created by PhpStorm.
 * User: maxence
 * Date: 7/4/17
 * Time: 5:01 PM
 */

namespace OCA\Circles\Db;


use Doctrine\DBAL\Query\QueryBuilder;
use OCA\Circles\Model\Circle;
use OCA\Circles\Model\Member;
use OCA\Circles\Service\ConfigService;
use OCA\Circles\Service\MiscService;
use OCA\Circles\Service\TimezoneService;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
use OCP\IL10N;

class CoreRequestBuilder {

	const TABLE_FILE_SHARES = 'share';
	const SHARE_TYPE = 7;

	const TABLE_CIRCLES = 'circles_circles';
	const TABLE_MEMBERS = 'circles_members';
	const TABLE_GROUPS = 'circles_groups';
	const TABLE_SHARES = 'circles_shares';
	const TABLE_LINKS = 'circles_links';
	const TABLE_TOKENS = 'circles_tokens';

	const NC_TABLE_GROUP_USER = 'group_user';

	/** @var IDBConnection */
	protected $dbConnection;

	/** @var IL10N */
	protected $l10n;

	/** @var ConfigService */
	protected $configService;

	/** @var TimezoneService */
	protected $timezoneService;

	/** @var MiscService */
	protected $miscService;

	/** @var string */
	protected $default_select_alias;

	/** @var bool */
	protected $leftJoinedNCGroupAndUser = false;

	/**
	 * RequestBuilder constructor.
	 *
	 * @param IL10N $l10n
	 * @param IDBConnection $connection
	 * @param ConfigService $configService
	 * @param TimezoneService $timezoneService
	 * @param MiscService $miscService
	 */
	public function __construct(
		IL10N $l10n, IDBConnection $connection, ConfigService $configService,
		TimezoneService $timezoneService, MiscService $miscService
	) {
		$this->l10n = $l10n;
		$this->dbConnection = $connection;
		$this->configService = $configService;
		$this->timezoneService = $timezoneService;
		$this->miscService = $miscService;
	}


	/**
	 * Limit the request by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param int $id
	 */
	protected function limitToId(IQueryBuilder &$qb, $id) {
		$this->limitToDBField($qb, 'id', $id);
	}


	/**
	 * Limit the request by its UniqueId.
	 *
	 * @param IQueryBuilder $qb
	 * @param int $uniqueId
	 */
	protected function limitToUniqueId(IQueryBuilder &$qb, $uniqueId) {
		$this->limitToDBField($qb, 'unique_id', $uniqueId);
	}


	/**
	 * Limit the request by its addressbookId.
	 *
	 * @param IQueryBuilder $qb
	 * @param int $bookId
	 */
	protected function limitToAddressBookId(IQueryBuilder &$qb, $bookId) {
		$this->limitToDBField($qb, 'contact_addressbook', (string)$bookId);
	}



	/**
	 * Limit the request by its addressbookId.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $groupName
	 */
	protected function limitToContactGroup(IQueryBuilder &$qb, $groupName) {
		$this->limitToDBField($qb, 'contact_groupname', $groupName);
	}


	/**
	 * Limit the request to the Circle by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $contactId
	 */
	protected function limitToContactId(IQueryBuilder &$qb, $contactId) {
		$this->limitToDBField($qb, 'contact_id', $contactId);
	}


	/**
	 * Limit the request by its Token.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $token
	 */
	protected function limitToToken(IQueryBuilder &$qb, $token) {
		$this->limitToDBField($qb, 'token', $token);
	}


	/**
	 * Limit the request to the User by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param $userId
	 */
	protected function limitToUserId(IQueryBuilder &$qb, $userId) {
		$this->limitToDBField($qb, 'user_id', $userId);
	}


	/**
	 * Limit the request to the Type entry.
	 *
	 * @param IQueryBuilder $qb
	 * @param int $type
	 */
	protected function limitToUserType(IQueryBuilder &$qb, $type) {
		$this->limitToDBField($qb, 'user_type', $type);
	}


	/**
	 * Limit the request to the Circle by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $circleUniqueId
	 */
	protected function limitToCircleId(IQueryBuilder &$qb, $circleUniqueId) {
		$this->limitToDBField($qb, 'circle_id', $circleUniqueId);
	}


	/**
	 * Limit the request to the Circle by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param int $shareId
	 */
	protected function limitToShareId(IQueryBuilder &$qb, int $shareId) {
		$this->limitToDBField($qb, 'share_id', $shareId);
	}


	/**
	 * Limit the request to the Circle by its Shorten Unique Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $circleUniqueId
	 * @param $length
	 */
	protected function limitToShortenUniqueId(IQueryBuilder &$qb, $circleUniqueId, $length) {
		$expr = $qb->expr();
		$pf = ($qb->getType() === QueryBuilder::SELECT) ? '`' . $this->default_select_alias . '`.' : '';

		$qb->andWhere(
			$expr->eq(
				$qb->createNamedParameter($circleUniqueId),
				$qb->createFunction('SUBSTR(' . $pf . '`unique_id`' . ', 1, ' . $length . ')')
			)
		);

	}


	/**
	 * Limit the request to the Group by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param int $groupId
	 */
	protected function limitToGroupId(IQueryBuilder &$qb, $groupId) {
		$this->limitToDBField($qb, 'group_id', $groupId);
	}


	/**
	 * Limit the search by its Name
	 *
	 * @param IQueryBuilder $qb
	 * @param string $name
	 */
	protected function limitToName(IQueryBuilder &$qb, $name) {
		$this->limitToDBField($qb, 'name', $name);
	}


	/**
	 * Limit the search by its Status (or greater)
	 *
	 * @param IQueryBuilder $qb
	 * @param string $name
	 */
	protected function limitToStatus(IQueryBuilder &$qb, $name) {
		$this->limitToDBFieldOrGreater($qb, 'status', $name);
	}


	/**
	 * Limit the request by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $type
	 */
	protected function limitToShareType(IQueryBuilder &$qb, string $type) {
		$this->limitToDBField($qb, 'share_type', $type);
	}


	/**
	 * Limit the request by its Id.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $with
	 */
	protected function limitToShareWith(IQueryBuilder &$qb, string $with) {
		$this->limitToDBField($qb, 'share_with', $with);
	}


	/**
	 * Limit the request to a minimum member level.
	 *
	 * if $pf is an array, will generate an SQL OR request to limit level in multiple tables
	 *
	 * @param IQueryBuilder $qb
	 * @param int $level
	 * @param string|array $pf
	 */
	protected function limitToLevel(IQueryBuilder &$qb, $level, $pf = '') {
		$expr = $qb->expr();

		if ($pf === '') {
			$p = ($qb->getType() === QueryBuilder::SELECT) ? $this->default_select_alias . '.' : '';
			$qb->andWhere($expr->gte($p . 'level', $qb->createNamedParameter($level)));

			return;
		}

		if (!is_array($pf)) {
			$pf = [$pf];
		}

		$orX = $this->generateLimitToLevelMultipleTableRequest($qb, $level, $pf);
		$qb->andWhere($orX);
	}


	/**
	 * @param IQueryBuilder $qb
	 * @param array $pf
	 *
	 * @return mixed
	 */
	private function generateLimitToLevelMultipleTableRequest(IQueryBuilder $qb, $level, $pf) {
		$expr = $qb->expr();
		$orX = $expr->orX();

		foreach ($pf as $p) {
			if ($p === 'g' && !$this->leftJoinedNCGroupAndUser) {
				continue;
			}
			$orX->add($expr->gte($p . '.level', $qb->createNamedParameter($level)));
		}

		return $orX;
	}


	/**
	 * Limit the search to Members and Almost members
	 *
	 * @param IQueryBuilder $qb
	 */
	protected function limitToMembersAndAlmost(IQueryBuilder &$qb) {
		$expr = $qb->expr();

		$pf = ($qb->getType() === QueryBuilder::SELECT) ? $this->default_select_alias . '.' : '';

		$orX = $expr->orX();
		$orX->add($expr->eq($pf . 'status', $qb->createNamedParameter(Member::STATUS_MEMBER)));
		$orX->add($expr->eq($pf . 'status', $qb->createNamedParameter(Member::STATUS_INVITED)));
		$orX->add($expr->eq($pf . 'status', $qb->createNamedParameter(Member::STATUS_REQUEST)));

		$qb->andWhere($orX);
	}


	/**
	 * @param IQueryBuilder $qb
	 * @param string $field
	 * @param string|integer $value
	 */
	private function limitToDBField(IQueryBuilder &$qb, $field, $value) {
		$expr = $qb->expr();
		$pf = ($qb->getType() === QueryBuilder::SELECT) ? $this->default_select_alias . '.' : '';
		$qb->andWhere($expr->eq($pf . $field, $qb->createNamedParameter($value)));
	}


	/**
	 * @param IQueryBuilder $qb
	 * @param string $field
	 * @param string|integer $value
	 */
	private function limitToDBFieldOrGreater(IQueryBuilder &$qb, $field, $value) {
		$expr = $qb->expr();
		$pf = ($qb->getType() === QueryBuilder::SELECT) ? $this->default_select_alias . '.' : '';
		$qb->andWhere($expr->gte($pf . $field, $qb->createNamedParameter($value)));
	}


	/**
	 * link to the groupId/UserId of the NC DB.
	 * If userId is empty, we add the uid of the NCGroup Table in the select list with 'user_id'
	 * alias
	 *
	 * @param IQueryBuilder $qb
	 * @param string $userId
	 */
	protected function limitToNCGroupUser(IQueryBuilder $qb, $userId = '') {
		$expr = $qb->expr();

		$pf = ($qb->getType() === QueryBuilder::SELECT) ? $this->default_select_alias . '.' : '';

		$and = $expr->andX($expr->eq($pf . 'group_id', 'ncgu.gid'));
		if ($userId !== '') {
			$and->add($expr->eq('ncgu.uid', $qb->createNamedParameter($userId)));
		} else {
			$qb->selectAlias('ncgu.uid', 'user_id');
		}

		$qb->from(self::NC_TABLE_GROUP_USER, 'ncgu');
		$qb->andWhere($and);
	}


	/**
	 * Right Join the Circles table
	 *
	 * @param IQueryBuilder $qb
	 *
	 * @deprecated not used (14/07/17)
	 */
	protected function rightJoinCircles(IQueryBuilder &$qb) {
		$expr = $qb->expr();
		$pf = ($qb->getType() === QueryBuilder::SELECT) ? $this->default_select_alias . '.' : '';

		$qb->from(self::TABLE_CIRCLES, 'c')
		   ->andWhere(
			   $expr->eq(
				   $pf . 'circle_id',
				   $qb->createFunction(
					   'SUBSTR(`c`.`unique_id`, 1, ' . Circle::SHORT_UNIQUE_ID_LENGTH . ')'
				   )
			   )
		   );
	}


	/**
	 * Left Join circle table to get more information about the circle.
	 *
	 * @param IQueryBuilder $qb
	 */
	protected function leftJoinCircle(IQueryBuilder &$qb) {
		if ($qb->getType() !== QueryBuilder::SELECT) {
			return;
		}

		$expr = $qb->expr();
		$pf = $this->default_select_alias . '.';

		/** @noinspection PhpMethodParametersCountMismatchInspection */
		$qb->selectAlias('lc.type', 'circle_type')
		   ->selectAlias('lc.name', 'circle_name')
		   ->leftJoin(
			   $this->default_select_alias, CoreRequestBuilder::TABLE_CIRCLES, 'lc',
			   $expr->eq(
				   $pf . 'circle_id',
				   $qb->createFunction(
					   'SUBSTR(`lc`.`unique_id`, 1, ' . Circle::SHORT_UNIQUE_ID_LENGTH . ')'
				   )
			   )
		   );
	}


	/**
	 * link to the groupId/UserId of the NC DB.
	 *
	 * @param IQueryBuilder $qb
	 * @param string $userId
	 * @param string $field
	 */
	protected function leftJoinNCGroupAndUser(IQueryBuilder $qb, $userId, $field) {
		if (!$this->configService->isLinkedGroupsAllowed()) {
			return;
		}

		$expr = $qb->expr();
		$qb->leftJoin(
			$this->default_select_alias, self::NC_TABLE_GROUP_USER, 'ncgu',
			$expr->eq('ncgu.uid', $qb->createNamedParameter($userId))
		);

		/** @noinspection PhpMethodParametersCountMismatchInspection */
		$qb->leftJoin(
			$this->default_select_alias, CoreRequestBuilder::TABLE_GROUPS, 'g',
			$expr->andX(
				$expr->eq('ncgu.gid', 'g.group_id'),
				$expr->eq(
					'g.circle_id', $qb->createFunction(
					'SUBSTR(' . $field . ', 1, ' . Circle::SHORT_UNIQUE_ID_LENGTH . ')'
				)
				)
			)
		);

		$this->leftJoinedNCGroupAndUser = true;
	}
}