BF: descriptors must be bound to class, not instance -- Revert "Adjustment to UI and Business logic for injecting dependencies"

yarikoptic · yarikoptic · commit b36e630b12b8 · 2016-05-17T14:31:32.000-04:00
This reverts commit 69b507b.
diff --git a/3-tier.py b/3-tier.py
@@ -19,8 +19,7 @@ def __get__(self, obj, klas):
 class BusinessLogic(object):
     """ Business logic holding data store instances """
 
-    def __init__(self, data):
-        self.data = data
+    data = Data()
 
     def product_list(self):
         return self.data['products'].keys()
@@ -32,8 +31,8 @@ def product_information(self, product):
 class Ui(object):
     """ UI interaction class """
 
-    def __init__(self, logic):
-        self.business_logic = logic
+    def __init__(self):
+        self.business_logic = BusinessLogic()
 
     def get_product_list(self):
         print('PRODUCT LIST:')
@@ -54,9 +53,7 @@ def get_product_information(self, product):
 
 
 def main():
-    data = Data()
-    logic = BusinessLogic(data)
-    ui = Ui(logic)
+    ui = Ui()
     ui.get_product_list()
     ui.get_product_information('cheese')
     ui.get_product_information('eggs')
@@ -72,7 +69,7 @@ def main():
 # cheese
 # eggs
 # milk
-#
+# 
 # (Fetching from Data Store)
 # PRODUCT INFORMATION:
 # Name: Cheese, Price: 2.00, Quantity: 10
