week 5 homeworks

students/KevinCavanaugh/final_project/DataModel_KevinCavanaugh.py

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+from datetime import datetime
+
+
+class Product(object):
+
+    def __init__(self, product_id: int, product_name: str):
+        self.product_id = product_id
+        self.product_name = product_name
+
+    def __str__(self):
+        return f'{self.product_id},{self.product_name}'
+
+    def __repr__(self):
+        return f'{Product},[{str(self.__dict__())}'
+
+    def __dict__(self):
+        return {"product_id": self.product_id, "product_name": self.product_name}
+
+    @property
+    def product_id(self):
+        return self.__product_id
+
+    @product_id.setter
+    def product_id(self, product_id):
+        if type(product_id) is not int:
+            raise TypeError("Requires integer!")
+        if product_id <= 0:
+            raise ValueError("Requires value greater than zero!")
+        else:
+            self.__product_id = product_id
+
+    @property
+    def product_name(self):
+        return self.__product_name
+
+    @product_name.setter
+    def product_name(self, product_name):
+        self.__product_name = str(product_name).strip()
+
+    # Add properties and validation
+    # product_id > 0
+
+
+class InventoryCount(object):
+
+    def __init__(self, product: Product, count: int):
+        self.product = product
+        self.count = count
+
+    @property
+    def count(self):
+        return self.__count
+
+    @count.setter
+    def count(self, count):
+        if type(count) is not int: raise TypeError("Requires integer!")
+        if count <= 0:
+            raise ValueError("Requires value greater than zero!")
+        else:
+            self.__count = count
+
+    @property
+    def product(self):
+        return self.__product
+
+    @product.setter
+    def product(self, product):
+        if type(product) is not Product:
+            raise TypeError("Requires product object!")
+        else:
+            self.__product = product
+
+    # Add properties and validation
+    # count >= 0
+    # product is Product
+
+
+class Inventory(object):
+    def __init__(self, inventory_id: int, inventory_date: datetime.date, inventory_counts: InventoryCount = [None]):
+        self.inventory_id = inventory_id
+        self.inventory_date = inventory_date
+        if inventory_counts is not None:
+            self.inventory_counts = inventory_counts
+
+    @property
+    def inventory_id(self):
+        return self.__inventory_id
+
+    @inventory_id.setter
+    def inventory_id(self, inventory_id):
+        if inventory_id <= 0:
+            raise ValueError("Requires value greater than zero!")
+        else:
+            self.__inventory_id = inventory_id
+
+    @property
+    def inventory_date(self):
+        return self.__inventory_date
+
+    @inventory_date.setter
+    def inventory_date(self, inventory_date):
+        # if type(inventory_date) is not datetime:
+        #     raise TypeError("Requires datetime object!")
+        # else:
+        self.__inventory_date = inventory_date
+
+    @property
+    def inventory_counts(self):
+        return self.__inventory_counts
+
+    @inventory_counts.setter
+    def inventory_counts(self, inventory_counts):
+        # if type(inventory_counts) is not InventoryCount:
+        #     raise TypeError("Requires InventoryCount Object")
+        # else:
+        self.__inventory_counts = inventory_counts
+
+
+    # Add properties and validation
+    # inventory_id > 0
+    # date is datetime
+    # inventory_count is inventory_count
+
+
+if __name__ == '__main__':
+    p1 = Product(100, "ProdA")
+    p2 = Product(200, "ProdB")
+    ic1 = InventoryCount(p1, 15)
+    ic2 = InventoryCount(p2, 45)
+    invJan0119 = Inventory(1, '2020-01-01', [ic1,ic2])
+    for ic in invJan0119.inventory_counts:
+        print('Jan 2019 -', ic.product.product_name, ' = ', ic.count)
+    print(p1, str(p1), p1.__str__())
+    print(repr(p1))
+    print(p1.__dict__())