Add static method get_config

docs/configuration.rst

@@ -65,6 +65,16 @@ once.
         'etc' => 'etc'
     ));
 
+Use the ``get_config`` method to read current settings.
+
+.. code-block:: php
+
+    <?php
+    $isLoggingEnabled = ORM::get_config('logging');
+    ORM::configure('logging', false);
+    // some crazy loop we don't want to log
+    ORM::configure('logging', $isLoggingEnabled);
+
 Database authentication details
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 

idiorm.php

@@ -196,6 +196,19 @@ public static function configure($key, $value = null, $connection_name = self::D
             }
         }
 
+        /**
+         * Retrieve configuration options by key, or as whole array.
+         * @param string $key
+         * @param string $connection_name Which connection to use
+         */
+        public static function get_config($key = null, $connection_name = self::DEFAULT_CONNECTION) {
+            if ($key) {
+                return self::$_config[$connection_name][$key];
+            } else {
+                return self::$_config[$connection_name];
+            }
+        }
+
         /**
          * Despite its slightly odd name, this is actually the factory
          * method used to acquire instances of the class. It is named

test/ConfigTest.php

@@ -97,4 +97,27 @@ public function testInstanceIdColumnThree() {
         $this->tearDownIdColumnOverrides();
     }
 
-}
+    public function testGetConfig() {
+        $this->assertTrue(ORM::get_config('logging'));
+        ORM::configure('logging', false);
+        $this->assertFalse(ORM::get_config('logging'));
+    }
+
+    public function testGetConfigArray() {
+        $expected = array(
+            'connection_string' => 'sqlite::memory:',
+            'id_column' => 'primary_key',
+            'id_column_overrides' => array(),
+            'error_mode' => PDO::ERRMODE_EXCEPTION,
+            'username' => null,
+            'password' => null,
+            'driver_options' => null,
+            'identifier_quote_character' => '`',
+            'logging' => true,
+            'caching' => false,
+            'return_result_sets' => false,
+        );
+        $this->assertEquals($expected, ORM::get_config());
+    }
+
+}