fix: leancloud.Query#get using get ACL permission, not find (#283)

Author: aisk

leancloud/object_.py

@@ -481,13 +481,22 @@ def clear(self):
     def _dump_save(self):
         return {k:v.dump() for k,v in iteritems(self._changes)}
 
-    def fetch(self):
+    def fetch(self, select=None, include=None):
         """
         从服务器获取当前对象所有的值，如果与本地值不同，将会覆盖本地的值。
 
         :return: 当前对象
         """
-        response = client.get('/classes/{0}/{1}'.format(self._class_name, self.id), {})
+        data = {}
+        if select:
+            if not isinstance(select, (list, tuple)):
+                raise TypeError('select parameter must be a list or a tuple')
+            data['keys'] = ','.join(select)
+        if include:
+            if not isinstance(include, (list, tuple)):
+                raise TypeError('include parameter must be a list or a tuple')
+            data['include'] = ','.join(include)
+        response = client.get('/classes/{0}/{1}'.format(self._class_name, self.id), data)
         self._update_data(response.json())
 
     def is_new(self):

leancloud/query.py

@@ -206,8 +206,11 @@ def get(self, object_id):
         :return: 查询结果
         :rtype: Object
         """
-        self.equal_to('objectId', object_id)
-        return self.first()
+        if not object_id:
+            raise LeanCloudError(code=101, error='Object not found.')
+        obj = self._query_class.create_without_data(object_id)
+        obj.fetch(select=self._select, include=self._include)
+        return obj
 
     def find(self):
         """

tests/test_object.py

@@ -212,12 +212,10 @@ def test_fetch(): # type: () -> None
     album.set('parent', band)
     album.save()
 
-    query = leancloud.Query(Album)
-    album_1 = query.get(album.id)
-    assert album_1.get('parent').get('name') is None
-
-    album_1.get('parent').fetch()
+    album_1 = Album.create_without_data(album.id)
+    album_1.fetch(include=['parent'], select=['name', 'parent'])
     assert album_1.get('parent').get('name') == 'Nightwish'
+    assert not album_1.has('title')
 
     album.destroy()
     band.destroy()