I have to create this query:
SELECT * FROM books AS b
LEFT JOIN
(
SELECT bu.book_id, bu.user_id
FROM books_users AS bu
WHERE bu.user_id = 5
) AS bud
ON a.id = bud.book_id
ORDER BY b.owners DESC LIMIT 2
reading doc I have do this:
$dbo = $this->Book->BooksUser->getDataSource();
$conditionsSubQuery['bu.user_id'] = 5;
$subQuery = $dbo->buildStatement(
array(
'fields' => array('bu.book_id', 'bu.user_id'),
'table' => 'books_users',
'alias' => 'bu',
'conditions' => $conditionsSubQuery,
'order' => null,
'limit' => null,
'group' => null,
),
$this->Book->BooksUser
);
$subQuery2 = 'SELECT * FROM books AS b LEFT JOIN
('.$subQuery.') AS
bu ON b.id = bu.book_id ORDER BY b.owners DESC LIMIT 2';
$subQueryExpression = $dbo->expression($subQuery2);
In the end subQueryExpression contain SQL but now I have two
questions:
1) I have write the subquery in cake style. How can avoid to write
pure SQL (see $subQuery2) and rewrite main query in "cake style"???
2) subQueryExpression is just an SQL string so it need query()
function to execute, how avoid this?
Regards
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