petrjasek · September 4, 2014 14:54 · Sep 4, 2014
diff --git a/layers.py b/layers.py
@@ -0,0 +1,27 @@
+
+def controller_layer(doc):
+    doc['ctr'] = 1
+    yield doc
+    doc['ctr'] = 2
+    return doc
+
+def service_layer(doc):
+    doc['srv'] = 1
+    yield doc
+    doc['srv'] = 2
+    return doc
+
+def data_layer(doc):
+    doc['data'] = 1
+    yield doc
+    doc['data'] = 2
+    return doc
+
+x = {}
+
+for doc in controller_layer(x):
+    for doc in service_layer(x):
+        for doc in data_layer(x):
+            print('save', doc)
+
+print('done', x)
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