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File: PKPContextQueryBuilder.inc.php
<?php
/**
 * @file classes/services/QueryBuilders/PKPContextQueryBuilder.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class PKPContextQueryBuilder
 * @ingroup query_builders
 *
 * @brief Base class for context (journals/presses) list query builder
 */

namespace PKP\Services\QueryBuilders;

use Illuminate\Database\Capsule\Manager as Capsule;
use PKP\Services\QueryBuilders\Interfaces\EntityQueryBuilderInterface;

abstract class PKPContextQueryBuilder implements EntityQueryBuilderInterface {

	/** @var string The database name for this context: `journals` or `presses` */
	protected $db;

	/** @var string The database name for this context's settings: `journal_settings` or `press_settings` */
	protected $dbSettings;

	/** @var string The column name for a context ID: `journal_id` or `press_id` */
	protected $dbIdColumn;

	/** @var boolean enabled or disabled contexts */
	protected $isEnabled = null;

	/** @var integer Filter contexts by whether or not this user can access it when logged in */
	protected $userId;

	/** @var string search phrase */
	protected $searchPhrase = null;

	/**
	 * Set isEnabled filter
	 *
	 * @param $isEnabled boolean
	 *
	 * @return \PKP\Services\QueryBuilders\PKPContextQueryBuilder
	 */
	public function filterByIsEnabled($isEnabled) {
		$this->isEnabled = $isEnabled;
		return $this;
	}

	/**
	 * Set userId filter
	 *
	 * The user id can access contexts where they are assigned to
	 * a user group. If the context is disabled, they must be
	 * assigned to ROLE_ID_MANAGER user group.
	 *
	 * @param $userId boolean
	 *
	 * @return \PKP\Services\QueryBuilders\PKPContextQueryBuilder
	 */
	public function filterByUserId($userId) {
		$this->userId = $userId;
		return $this;
	}

	/**
	 * Set query search phrase
	 *
	 * @param $phrase string
	 *
	 * @return \PKP\Services\QueryBuilders\PKPContextQueryBuilder
	 */
	public function searchPhrase($phrase) {
		$this->searchPhrase = $phrase;
		return $this;
	}

	/**
	 * @copydoc PKP\Services\QueryBuilders\Interfaces\EntityQueryBuilderInterface::getCount()
	 */
	public function getCount() {
		return $this
			->getQuery()
			->select('c.' . $this->dbIdColumn)
			->get()
			->count();
	}

	/**
	 * @copydoc PKP\Services\QueryBuilders\Interfaces\EntityQueryBuilderInterface::getIds()
	 */
	public function getIds() {
		return $this
			->getQuery()
			->select('c.' . $this->dbIdColumn)
			->pluck('c.' . $this->dbIdColumn)
			->toArray();
	}

	/**
	 * Get the name and basic data for a set of contexts
	 *
	 * This returns data from the main table and the name
	 * of the context in its primary locale.
	 *
	 * @return array
	 */
	public function getManySummary() {
		return $this
			->getQuery()
			->select([
				'c.' . $this->dbIdColumn . ' as id',
				'c.enabled',
				'cst.setting_value as name',
				'c.path as urlPath',
				'c.seq',
			])
			->leftJoin($this->dbSettings . ' as cst', function($q) {
				$q->where('cst.' . $this->dbIdColumn, '=', Capsule::raw('c.' . $this->dbIdColumn))
					->where('cst.setting_name', '=', 'name')
					->where('cst.locale', '=', Capsule::raw('c.primary_locale'));
			})
			->groupBy([
				'c.' . $this->dbIdColumn,
				'cst.setting_value',
			])
                        ->orderBy('c.seq')
			->get()
			->toArray();
	}

	/**
	 * @copydoc PKP\Services\QueryBuilders\Interfaces\EntityQueryBuilderInterface::getQuery()
	 */
	public function getQuery() {
		$this->columns[] = 'c.*';
		$q = Capsule::table($this->db . ' as c')
					->leftJoin($this->dbSettings . ' as cs', 'cs.' . $this->dbIdColumn, '=', 'c.' . $this->dbIdColumn)
					->groupBy('c.' . $this->dbIdColumn);

		if (!empty($this->isEnabled)) {
			$q->where('c.enabled', '=', 1);
		} elseif ($this->isEnabled === false) {
			$q->where('c.enabled', '!=', 1);
		}

		if (!empty($this->userId)) {
			$q->leftJoin('user_groups as ug', 'ug.context_id', '=', 'c.' . $this->dbIdColumn)
				->leftJoin('user_user_groups as uug', 'uug.user_group_id', '=', 'ug.user_group_id')
				->where(function($q) {
					$q->where('uug.user_id', '=', $this->userId)
						->where(function($q) {
							$q->where('ug.role_id', '=', ROLE_ID_MANAGER)
								->orWhere('c.enabled', '=', 1);
						});
				});
		}

		// search phrase
		if (!empty($this->searchPhrase)) {
			$words = explode(' ', $this->searchPhrase);
			if (count($words)) {
				foreach ($words as $word) {
					$q->where(function($q) use ($word) {
						$q->where(function($q) use ($word) {
								$q->where('cs.setting_name', 'name');
								$q->where('cs.setting_value', 'LIKE', "%{$word}%");
							})
							->orWhere(function($q) use ($word) {
								$q->where('cs.setting_name', 'description');
								$q->where('cs.setting_value', 'LIKE', "%{$word}%");
							})
							->orWhere(function($q) use ($word) {
								$q->where('cs.setting_name', 'acronym');
								$q->where('cs.setting_value', 'LIKE', "%{$word}%");
							})
							->orWhere(function($q) use ($word) {
								$q->where('cs.setting_name', 'abbreviation');
								$q->where('cs.setting_value', 'LIKE', "%{$word}%");
							});
					});
				}
			}
		}

		// Add app-specific query statements
		\HookRegistry::call('Context::getContexts::queryObject', array(&$q, $this));

		$q->select($this->columns);

		return $q;
	}
}