python-patterns/mvc.py at master · Bot123123/python-patterns · GitHub

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#!/usr/bin/env python
# -*- coding: utf-8 -*-


classModel(object):

products= {
'milk': {'price': 1.50, 'quantity': 10},
'eggs': {'price': 0.20, 'quantity': 100},
'cheese': {'price': 2.00, 'quantity': 10}
 }


classView(object):

defproduct_list(self, product_list):
print('PRODUCT LIST:')
forproductinproduct_list:
print(product)
print('')

defproduct_information(self, product, product_info):
print('PRODUCT INFORMATION:')
print('Name: %s, Price: %.2f, Quantity: %d\n'%
 (product.title(), product_info.get('price', 0),
product_info.get('quantity', 0)))

defproduct_not_found(self, product):
print('That product "%s" does not exist in the records'%product)


classController(object):

def__init__(self):
self.model=Model()
self.view=View()

defget_product_list(self):
product_list=self.model.products.keys()
self.view.product_list(product_list)

defget_product_information(self, product):
product_info=self.model.products.get(product, None)
ifproduct_infoisnotNone:
self.view.product_information(product, product_info)
else:
self.view.product_not_found(product)


if__name__=='__main__':

controller=Controller()
controller.get_product_list()
controller.get_product_information('cheese')
controller.get_product_information('eggs')
controller.get_product_information('milk')
controller.get_product_information('arepas')

### OUTPUT ###
# PRODUCT LIST:
# cheese
# eggs
# milk
#
# PRODUCT INFORMATION:
# Name: Cheese, Price: 2.00, Quantity: 10
#
# PRODUCT INFORMATION:
# Name: Eggs, Price: 0.20, Quantity: 100
#
# PRODUCT INFORMATION:
# Name: Milk, Price: 1.50, Quantity: 10
#
# That product "arepas" does not exist in the records