Update fields.py

ImageFields can show_urls=True instead of file names

rest_framework/fields.py

@@ -988,6 +988,15 @@ class ImageField(FileField):
         'invalid_image': _("Upload a valid image. The file you uploaded was "
                            "either not an image or a corrupted image."),
     }
+    
+    def __init__(self, *args, **kwargs):
+        self.show_url = kwargs.pop('show_url', False)
+        super(ImageField, self).__init__(*args, **kwargs)
+
+    def to_native(self, value):
+        if self.show_url:
+            return value.url
+        return value.name
 
     def from_native(self, data):
         """