added condition to batchInsert against empty arrays

model/MongoDbCommand.php

@@ -125,11 +125,14 @@ class InsertMongoCommand extends MongoDbCommand
 
     protected function concreteExecute()
     {
+        $result = null;
         if (!$this->multiple) {
             $result = $this->collection->insert($this->data, array('safe' => $this->safe));
             $this->insertId = $this->data['_id'];
         } else {
-            $result = $this->collection->batchInsert($this->data, array('safe' => $this->safe));
+            if (count($this->data)) {
+                $result = $this->collection->batchInsert($this->data, array('safe' => $this->safe));
+            }
         }
         return $result;
     }

tests/model/MongoDbCommandTest.php

@@ -151,6 +151,9 @@ class MongoDbCommandTest extends PHPUnit_Framework_TestCase
 
         $this->assertArrayHasKey('n', $cmd->execute());
 
+        $cmd->bindParam('data', array());
+        $cmd->execute();
+
         $cmd = MongoCommandBuilder::factory(MongoCommandBuilder::FIND, $this->collection);
         $cmd->bindParam('condition', array('name' => 'first object'))->bindParam('fields', array());
         $result = $cmd->execute();
@@ -161,6 +164,8 @@ class MongoDbCommandTest extends PHPUnit_Framework_TestCase
         $cmd->bindParam('condition', array('name' => 'equal object'))->bindParam('fields', array());
         $result = $cmd->execute();
         $this->assertEquals(2, $result->count());
+
+
     }
 
     /**

tests/model/MongoModelTest.php

@@ -126,6 +126,7 @@ class MongoModelTest extends PHPUnit_Framework_TestCase
         $this->model->batchInsert($data);
         $this->assertEquals(1, $this->model->count(array('name' => 'first object')));
         $this->assertEquals(2, $this->model->count(array('name' => 'equal object')));
+        $this->model->batchInsert(array());
     }
 
     /**