mysql - 将 MySQL 搜索表中的一对值转换为 Eloquent 查询

Question

我在使用 Eloquent 重现这种 MySQL 查询时遇到了问题

SELECT  *
    FROM    foo
    WHERE   (column1, column2) IN (('foo', 1), ('bar', 2))

Eloquent 查询生成器中有一个方法叫做 whereIn()，但它只能接收一列作为参数:

/**
 * Add a "where in" clause to the query.
 *
 * @param  string  $column
 * @param  mixed   $values
 * @param  string  $boolean
 * @param  bool    $not
 * @return $this
 */
public function whereIn($column, $values, $boolean = 'and', $not = false)
{ 
   ...
}

所以，你不能做这样的事情

$qb = $this->model->whereIn(['column1', 'column2'], array([1, 2], [1,3], [3, 32]));

我目前正在努力寻找解决方案，但如果有人能提供帮助，我将不胜感激:)

编辑:我设法这样做了:

/**
 * ...
 */
public function findConnectionsByUser(User $user, array $userConnectionIds)
{
    $qb = $this->model->query();

    ...

    return $this->createQueryBuilderForUserConnectionsWithUserIds($qb, $user, $userConnectionIds)->get();
}

/**
 * @param Builder $qb
 * @param User    $user
 * @param array   $userConnectionIds
 *
 * @return Builder
 */
private function createQueryBuilderForUserConnectionsWithUserIds(Builder $qb, User $user, array $userConnectionIds)
{
    foreach ($userConnectionIds as $userConnectionId) {
        $qb->orWhere(array(
            array('receiver_id', $user->id),
            array('initiator_id', $userConnectionId)
        ))
            ->orWhere([
                ['receiver_id', $userConnectionId],
                ['initiator_id', $user->id]
            ]);
    }

    return $qb;
}

编辑 2(更具可扩展性的解决方案):

$qb = $this->model->query();
$oneSide = $this->model->newQuery()->where('receiver_id', '=', $user->id)
            ->whereIn('initiator_id', $userConnectionsIds);

return $qb->where('initiator_id', '=', $user->id)
            ->whereIn('receiver_id', $userConnectionsIds)
        ->union($oneSide)->get();

Answer 1

你可以尝试嵌套它们

$qb = $this->model->whereIn('column1', [1, 2, 3])
->orWhere(function ($query) {
    $query->whereIn('column2', [2, 3, 32]);
});

也不确定您是否可以像这样简单地使用 whereIn 。先试试看

$qb = $this->model->whereIn('column1', [1, 2, 3])
->whereIn('column2', [2, 3, 32]);

第一个查询读起来更像 OR，第二个更像 AND 查询。