Comments on: Propel Queries using Custom SQL, Peer Classes, and Criterion Objects

By: Scott Meves

Scott Meves — Wed, 03 Mar 2010 08:00:16 +0000

Hi Phuc, these functions only work with Symfony 1.0.

By: Phuc

Phuc — Mon, 01 Mar 2010 07:56:54 +0000

Hi,
Thank you for this acticle. But i have a problem when use propel sql like that :
$con = Propel::getConnection(DATABASE_NAME);
$sql = “SELECT books.* FROM books
WHERE NOT EXISTS (SELECT id FROM review WHERE book_id = book.id)”;
$stmt = $con->createStatement();
$rs = $stmt->executeQuery($sql, ResultSet::FETCHMODE_NUM);
$books = BookPeer::populateObjects($rs);
Result : Call to undefined method DebugPDO::createStatement()
I use symfony 1.27 .
And have error the same if i use prepareStatement();
Could you help me?

By: Kamil

Kamil — Wed, 06 Jan 2010 12:21:34 +0000

Thank you, really usefull tips.
Cheers

By: Manel

Manel — Fri, 05 Jun 2009 07:28:26 +0000

Thanks!!! You have saved my day!!!

I need to order a query putting the null values of one field at the end.

I’ve combined your tip with this: http://www.shawnolson.net/a/730/mysql-sort-order-with-null.html. I hope that this can help anyone.

By: Maksym

Maksym — Tue, 12 May 2009 12:01:43 +0000

Thank you!!!
Method to compare to column in one table is great!
It’s what I’m looking for

By: Rowan

Rowan — Tue, 16 Dec 2008 21:47:29 +0000

bharathkumar, see the propel criteria generator: http://propel.jondh.me.uk/

By: bharathkumar

bharathkumar — Sat, 29 Nov 2008 07:03:26 +0000

SELECT Persons.LastName, Persons.FirstName, Orders.OrderNo
FROM Persons
INNER JOIN Orders
ON Persons.P_Id=Orders.P_Id
ORDER BY Persons.LastName;

how to write this code in propel

By: smente

smente — Tue, 03 Jun 2008 15:24:25 +0000

Thank You.

By: Scott Meves

Scott Meves — Fri, 29 Feb 2008 16:15:33 +0000

Tommy, I think you are right that you will have to hydrate the objects on your own. The FavoriteBook example added the 'cnt' column purely to help sort the results, but if you wanted to retrieve that column along side the book objects, you could do something like this:


$c = new Criteria();
$c->addJoin(BookPeer::ID, FavoriteBookPeer::BOOK_ID, Criteria::LEFT_JOIN);
$c->addAsColumn('cnt', 'COUNT('.FavoriteBookPeer::BOOK_ID.')');
$c->addGroupByColumn(BookPeer::ID);
$c->addDescendingOrderByColumn('cnt');

$rs = BookPeer::doSelectRS($c);
$n = BookPeer::NUM_COLUMNS;
$results = array();
while($rs->next()) {
  $book = new Book();
  $book->hydrate($rs);
  $bookCount = $rs->getInt($n+1);
  // or you could do $bookCount = $rs->getString('cnt') but that break if you added conflicting column names
  $results[] = array($book, $bookCount);
}

By: tommy

tommy — Fri, 29 Feb 2008 14:52:05 +0000

Thanks for this cool article, but how I am able to use the ‘cnt’ property in an object?

$c->addAsColumn(‘cnt’, ‘COUNT(‘.FavoriteBookPeer::BOOK_ID.’)');

addAsColumns doesn’t get hydrated so I have to do it on my own, right?

Regards,
tommy