Add another use case example

django · Oct 22, 2018 · 535ca97 · 535ca97
1 parent c063935
commit 535ca97
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/docs/topics/files.txt b/docs/topics/files.txt
@@ -216,6 +216,14 @@ storage on one deployment, but local storage on another.
 
              return super(MyCustomStorage2, self).__init__(...)
 
+    class MyStorage(Storage):
+        # Adding a call method makes the instance callable
+        def __call__(self):
+            if ...:
+                self.location = ...
+            return self
+
     class MyModel(models.Model):
         my_file = models.FileField(storage=MyCustomStorage)
         my_image = models.ImageField(storage=MyCustomStorage2)
+        my_image2 = models.ImageField(storage=MyStorage())