Refactored code.

extensions/sphinx/Schema.php

@@ -502,20 +502,20 @@ class Schema extends Object
     }
 
     /**
-     * Handles database error
+     * Converts a DB exception to a more concrete one if possible.
      *
      * @param \Exception $e
      * @param string $rawSql SQL that produced exception
-     * @throws Exception
+     * @return Exception
      */
-    public function handleException(\Exception $e, $rawSql)
+    public function convertException(\Exception $e, $rawSql)
     {
         if ($e instanceof Exception) {
-            throw $e;
+            return $e;
         } else {
             $message = $e->getMessage()  . "\nThe SQL being executed was: $rawSql";
             $errorInfo = $e instanceof \PDOException ? $e->errorInfo : null;
-            throw new Exception($message, $errorInfo, (int) $e->getCode(), $e);
+            return new Exception($message, $errorInfo, (int) $e->getCode(), $e);
         }
     }
 

framework/db/Command.php

@@ -321,7 +321,7 @@ class Command extends \yii\base\Component
             return $n;
         } catch (\Exception $e) {
             Yii::endProfile($token, __METHOD__);
-            $this->db->getSchema()->handleException($e, $rawSql);
+            throw $this->db->getSchema()->convertException($e, $rawSql);
         }
     }
 
@@ -456,7 +456,7 @@ class Command extends \yii\base\Component
             return $result;
         } catch (\Exception $e) {
             Yii::endProfile($token, 'yii\db\Command::query');
-            $this->db->getSchema()->handleException($e, $rawSql);
+            throw $this->db->getSchema()->convertException($e, $rawSql);
         }
     }
 

framework/db/Connection.php

@@ -432,7 +432,7 @@ class Connection extends Component
         }
         $token = 'Opening DB connection: ' . $this->dsn;
         try {
-            Yii::trace($token, __METHOD__);
+            Yii::info($token, __METHOD__);
             Yii::beginProfile($token, __METHOD__);
             $this->pdo = $this->createPdoInstance();
             $this->initConnection();

framework/db/Schema.php

@@ -496,28 +496,27 @@ abstract class Schema extends Object
     }
 
     /**
-     * Handles database error
+     * Converts a DB exception to a more concrete one if possible.
      *
      * @param \Exception $e
      * @param string $rawSql SQL that produced exception
-     * @throws Exception
+     * @return Exception
      */
-    public function handleException(\Exception $e, $rawSql)
+    public function convertException(\Exception $e, $rawSql)
     {
         if ($e instanceof Exception) {
-            throw $e;
-        } else {
+            return $e;
+        }
+
         $exceptionClass = '\yii\db\Exception';
         foreach ($this->exceptionMap as $error => $class) {
             if (strpos($e->getMessage(), $error) !== false) {
                 $exceptionClass = $class;
             }
         }
-
         $message = $e->getMessage()  . "\nThe SQL being executed was: $rawSql";
         $errorInfo = $e instanceof \PDOException ? $e->errorInfo : null;
-            throw new $exceptionClass($message, $errorInfo, (int) $e->getCode(), $e);
-        }
+        return new $exceptionClass($message, $errorInfo, (int) $e->getCode(), $e);
     }
 
     /**