Example—logging database activity
The following example shows how to log database activity using the Magento\Framework\DB\LoggerInterface, which has two implementations:
- Logs nothing (default):
Magento\Framework\DB\Logger\Quiet - Logs to the Magento
var/logdirectory:Magento\Framework\DB\Logger\File
You can also use the Magento CLI to enable and disable database logging.
To change the default configuration of \Magento\Framework\DB\Logger\LoggerProxy, edit your app/etc/di.xml.
First, change the default values of loggerAlias and logCallStack arguments to:
<type name="Magento\Framework\DB\Logger\LoggerProxy">
<arguments>
<argument name="loggerAlias" xsi:type="const">Magento\Framework\DB\Logger\LoggerProxy::LOGGER_ALIAS_FILE</argument>
<argument name="logAllQueries" xsi:type="init_parameter">Magento\Framework\Config\ConfigOptionsListConstants::CONFIG_PATH_DB_LOGGER_LOG_EVERYTHING</argument>
<argument name="logQueryTime" xsi:type="init_parameter">Magento\Framework\Config\ConfigOptionsListConstants::CONFIG_PATH_DB_LOGGER_QUERY_TIME_THRESHOLD</argument>
<argument name="logCallStack" xsi:type="boolean">false</argument>
</arguments>
</type>
After that, provide the file path for Magento\Framework\DB\Logger\File:
<type name="Magento\Framework\DB\Logger\File">
<arguments>
<argument name="debugFile" xsi:type="string">log/db.log</argument>
</arguments>
</type>
