/
DiscussionRepository.php
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/
DiscussionRepository.php
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<?php
/*
* This file is part of Flarum.
*
* (c) Toby Zerner <toby.zerner@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Flarum\Core\Repository;
use Flarum\Core\Discussion;
use Flarum\Core\User;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Query\Expression;
class DiscussionRepository
{
/**
* Get a new query builder for the discussions table.
*
* @return Builder
*/
public function query()
{
return Discussion::query();
}
/**
* Find a discussion by ID, optionally making sure it is visible to a
* certain user, or throw an exception.
*
* @param int $id
* @param User $user
* @return \Flarum\Core\Discussion
*/
public function findOrFail($id, User $user = null)
{
$query = Discussion::where('id', $id);
return $this->scopeVisibleTo($query, $user)->firstOrFail();
}
/**
* Get the IDs of discussions which a user has read completely.
*
* @param User $user
* @return array
*/
public function getReadIds(User $user)
{
return Discussion::leftJoin('users_discussions', 'users_discussions.discussion_id', '=', 'discussions.id')
->where('user_id', $user->id)
->where('read_number', '>=', new Expression('last_post_number'))
->lists('id')
->all();
}
/**
* Scope a query to only include records that are visible to a user.
*
* @param Builder $query
* @param User $user
* @return Builder
*/
protected function scopeVisibleTo(Builder $query, User $user = null)
{
if ($user !== null) {
$query->whereVisibleTo($user);
}
return $query;
}
}