[DDC-901] Docs DQL Custom Walkers CountSqlWalker example error

Sun, 12 Dec 2010 07:13:01 +0000

Getting invalid SQL when using the CountSqlWalker example in the DQL Custom Walkers docs:

SELECT count(DISTINCT z0_.) AS sclr0 FROM ...

From what looks like this part of the example:

...
$pathExpression = new PathExpression(
    PathExpression::TYPE_STATE_FIELD | PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION, $parentName, array(
    $parent['metadata']->getSingleIdentifierFieldName())
);
...

If you move the field name (3rd parameter) out of the array, it seems to work:

...
$pathExpression = new PathExpression(
    PathExpression::TYPE_STATE_FIELD | PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION, $parentName, 
    $parent['metadata']->getSingleIdentifierFieldName()
);
...

SELECT count(DISTINCT z0_.id) AS sclr0 FROM ...

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[DDC-901] Docs DQL Custom Walkers CountSqlWalker example error