Add further logging output

src/Dumper/Context/AbstractDumperContext.php

@@ -156,8 +156,13 @@ private function createLogger(OutputInterface $applicationOutput)
             return new NullLogger();
         }
 
+        $minLevel = Logger::INFO;
+        if ($applicationOutput->getVerbosity() >= OutputInterface::VERBOSITY_VERY_VERBOSE) {
+            $minLevel = Logger::DEBUG;
+        }
+
         $logger = new Logger('snakedumper');
-        $logger->pushHandler(new StreamHandler(fopen('php://stderr', 'w')));
+        $logger->pushHandler(new StreamHandler(fopen('php://stderr', 'w'), $minLevel));
 
         return $logger;
     }

src/Dumper/Sql/DataLoader.php

@@ -9,6 +9,7 @@
 use Doctrine\DBAL\Query\QueryBuilder;
 use Doctrine\DBAL\Schema\Table;
 use InvalidArgumentException;
+use Psr\Log\LoggerInterface;
 
 /**
  * This class helps to query the appropriate data that should be dumped.
@@ -20,13 +21,19 @@ class DataLoader
      * @var ConnectionHandler
      */
     private $connectionHandler;
+    /**
+     * @var LoggerInterface
+     */
+    private $logger;
 
     /**
      * @param ConnectionHandler $connectionHandler
+     * @param LoggerInterface   $logger
      */
-    public function __construct(ConnectionHandler $connectionHandler)
+    public function __construct(ConnectionHandler $connectionHandler, LoggerInterface $logger)
     {
         $this->connectionHandler = $connectionHandler;
+        $this->logger = $logger;
     }
 
     /**
@@ -43,6 +50,7 @@ public function executeSelectQuery(TableConfiguration $tableConfig, Table $table
     {
         list($query, $parameters) = $this->buildSelectQuery($tableConfig, $table, $harvestedValues);
 
+        $this->logger->debug('Executing select query' . $query);
         $result = $this->connectionHandler->getConnection()->prepare($query);
         $result->execute($parameters);
 

src/Dumper/Sql/Dumper/TableContentsDumper.php

@@ -61,7 +61,7 @@ public function __construct(SqlDumperContext $context) {
         $this->dumpOutput = $context->getDumpOutput();
         $this->logger = $context->getLogger();
 
-        $this->dataLoader = new DataLoader($this->connectionHandler);
+        $this->dataLoader = new DataLoader($this->connectionHandler, $context->getLogger());
     }
 
     /**
@@ -108,6 +108,7 @@ private function dumpTableContent(Table $table, TableConfiguration $tableConfig)
         $bufferCount = 0; // number of rows in buffer
         $buffer = array(); // array to buffer rows
 
+        $this->logger->info('Querying table ' . $table->getName());
         $rowCount = $this->dataLoader->countRows($tableConfig, $table, $this->harvestedValues);
         $result = $this->dataLoader->executeSelectQuery($tableConfig, $table, $this->harvestedValues);
 

src/Dumper/Sql/Tests/DataLoaderTest.php

@@ -8,6 +8,7 @@
 use Digilist\SnakeDumper\Dumper\Sql\DataLoader;
 use Doctrine\DBAL\Query\QueryBuilder;
 use Doctrine\DBAL\Schema\Table;
+use Psr\Log\NullLogger;
 
 class DataLoaderTest extends AbstractSqlTest
 {
@@ -30,7 +31,7 @@ public function setUp()
         parent::setUp();
 
         $dbConfig = new DatabaseConfiguration(['connection' => $this->connection]);
-        $this->dataLoader = new DataLoader(new ConnectionHandler($dbConfig));
+        $this->dataLoader = new DataLoader(new ConnectionHandler($dbConfig), new NullLogger());
 
         $refl = new \ReflectionObject($this->dataLoader);
         $createSelectQueryBuilder = $refl->getMethod('createSelectQueryBuilder');