php - How to get the raw sql of doctrine -


i understand doctrine more , want analyse sql wich doctrine builds out of dql or find method.

is possible print statement out in php?

another question is: more performant, write own dqls joins or doctrine smart enough match these when use find method?

according logging doctrine sql queries in symfony2:

you can use doctrine logger such debugstack or own implementation of sqllogger interface.

$logger = new \doctrine\dbal\logging\debugstack();  /* @var doctrine\dbal\connection $connection */ $connection->getconfiguration()->setsqllogger($logger);

after execution of queries can query strings , parameters public property of logger.

var_dump($logger->queries);

you second question different. btw, said in documentation:

objects not loaded database replaced lazy load proxy instances. non-loaded collections replaced lazy-load instances fetch contained objects upon first access. relying on lazy-load mechanism leads many small queries executed against database, can affect performance of application. fetch joins solution hydrate or of entities need in single select query.


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