Zend Enable SQL Query logging - zend-framework

Question

I am using this to retrieve the database connection atm.
$db = Zend_Db_Table::getDefaultAdapter();
I do set this up in my config like this:
resources.db.adapter = pdo_mysql
resources.db.isDefaultTableAdapter = true
resources.db.params.host = localhost
resources.db.params.username = root
resources.db.params.password = password
resources.db.params.dbname = db
resources.db.params.profiler.enabled = true
resources.db.params.profiler.class = Zend_Db_Profiler
I would like to output everything to a sql.log for example. Is this possible to apply on the default adapter? for example through the settings, so I can ignore it in production environment?
Much appriciated.
I did look at: How to enable SQL output to log file with Zend_Db? but it didn't seem to cover my issue.
/Marcus

Answer 1

There is an example of extending Zend_Db_Profiler so you can write the queries to /logs/db-queries.log file.
So you have to do the following:
Create My_Db_Profiler_Log class in the library folder
Add the following lines to the application.ini
resources.db.params.profiler.enabled = true
resources.db.params.profiler.class = My_Db_Profiler_Log
Note: be aware, that the log file will become very big, very soon! So it is a good idea to log only the queries you are interested in. And this example should be considered only as a starting point in implementation of such a logging system.
Here is the code for the custom profiler class:
<?php
class My_Db_Profiler_Log extends Zend_Db_Profiler {
/**
* Zend_Log instance
* #var Zend_Log
*/
protected $_log;
/**
* counter of the total elapsed time
* #var double
*/
protected $_totalElapsedTime;
public function __construct($enabled = false) {
parent::__construct($enabled);
$this->_log = new Zend_Log();
$writer = new Zend_Log_Writer_Stream(APPLICATION_PATH . '/logs/db-queries.log');
$this->_log->addWriter($writer);
}
/**
* Intercept the query end and log the profiling data.
*
* #param integer $queryId
* #throws Zend_Db_Profiler_Exception
* #return void
*/
public function queryEnd($queryId) {
$state = parent::queryEnd($queryId);
if (!$this->getEnabled() || $state == self::IGNORED) {
return;
}
// get profile of the current query
$profile = $this->getQueryProfile($queryId);
// update totalElapsedTime counter
$this->_totalElapsedTime += $profile->getElapsedSecs();
// create the message to be logged
$message = "\r\nElapsed Secs: " . round($profile->getElapsedSecs(), 5) . "\r\n";
$message .= "Query: " . $profile->getQuery() . "\r\n";
// log the message as INFO message
$this->_log->info($message);
}
}
?>

Answer 2

Extend the Zend_Db_Profiler to write to an SQL.log and attach the profiler to your db adapter
<?php
class File_Profiler extends Zend_Db_Profiler {
/**
* The filename to save the queries
*
* #var string
*/
protected $_filename;
/**
* The file handle
*
* #var resource
*/
protected $_handle = null;
/**
* Class constructor
*
* #param string $filename
*/
public function __construct( $filename ) {
$this->_filename = $filename;
}
/**
* Change the profiler status. If the profiler is not enabled no
* query will be written to the destination file
*
* #param boolean $enabled
*/
public function setEnabled( $enabled ) {
parent::setEnabled($enabled);
if( $this->getEnabled() ) {
if( !$this->_handle ) {
if( !($this->_handle = #fopen($this->_filename, "a")) ) {
throw new Exception("Unable to open filename {$this->_filename} for query profiling");
}
}
}
else {
if( $this->_handle ) {
#fclose($this->_handle);
}
}
}
/**
* Intercept parent::queryEnd to catch the query and write it to a file
*
* #param int $queryId
*/
public function queryEnd($queryId) {
$state = parent::queryEnd($queryId);
if(!$this->getEnabled() || $state == self::IGNORED) {
return;
}
$profile = $this->getQueryProfile($queryId);
#fwrite($this->_handle, round($profile->getElapsedSecs(),5) . " " . $profile->getQuery() . " " . ($params=$profile->getQueryParams())?$params:null);
}
}
Haven't test it, but it should do the trick. Give it a try and let me know.
Btw you do know that you can log all queries on the mysql as well?

Answer 3

this will let you see sql queries to the web page , IT MIGHT BE OFF TOPIC but it helpful
I am highly recommend you to use ZF debug bar , it will give you very handy information
i am using it to see my doctrine queries , and it had support for zend db too
https://github.com/jokkedk/ZFDebug