`yii\mongodb\Query::select` now allows excluding fields

extensions/mongodb/CHANGELOG.md

@@ -4,7 +4,7 @@ Yii Framework 2 mongodb extension Change Log
 2.0.3 under development
 -----------------------
 
-- no changes in this release.
+- Bug #7010: Fixed `yii\mongodb\Query::select` now allows excluding fields (Sammaye, klimov-paul)
 
 
 2.0.2 January 11, 2015

extensions/mongodb/Query.php

@@ -41,8 +41,8 @@ class Query extends Component implements QueryInterface
     use QueryTrait;
 
     /**
-     * @var array the fields of the results to return. For example, `['name', 'group_id']`.
-     * The "_id" field is always returned. If not set, if means selecting all columns.
+     * @var array the fields of the results to return. For example: `['name', 'group_id']`, `['name' => true, '_id' => false]`.
+     * Unless directly excluded, the "_id" field is always returned. If not set, it means selecting all columns.
      * @see select()
      */
     public $select = [];
@@ -377,8 +377,12 @@ class Query extends Component implements QueryInterface
     {
         $selectFields = [];
         if (!empty($this->select)) {
-            foreach ($this->select as $fieldName) {
-                $selectFields[$fieldName] = true;
+            foreach ($this->select as $key => $value) {
+                if (is_numeric($key)) {
+                    $selectFields[$value] = true;
+                } else {
+                    $selectFields[$key] = $value;
+                }
             }
         }
         return $selectFields;

tests/unit/extensions/mongodb/QueryRunTest.php

@@ -262,4 +262,21 @@ class QueryRunTest extends MongoDbTestCase
         $this->assertEquals('name1', $rows[0]['name']);
         $this->assertEquals('name5', $rows[1]['name']);
     }
+
+    /**
+     * @see https://github.com/yiisoft/yii2/issues/7010
+     */
+    public function testSelect()
+    {
+        $connection = $this->getConnection();
+        $query = new Query;
+        $rows = $query->from('customer')
+            ->select(['name' => true, '_id' => false])
+            ->limit(1)
+            ->all($connection);
+        $row = array_pop($rows);
+        $this->assertArrayHasKey('name', $row);
+        $this->assertArrayNotHasKey('address', $row);
+        $this->assertArrayNotHasKey('_id', $row);
+    }
 }