def get_shopping_cart(user, db=None):
"""
Gets all ShoppingCartItems for user
:param user: User, the user to request for
:param db: optional, the database connection
"""
db = db or get_db()
cur = db.cursor()
cur.execute("""
SELECT InventoryItemID, Price, Quantity
FROM ShoppingCartItem
WHERE UserID = ?
""", [user.id_])
cart = ShoppingCart(user)
for row in cur.fetchall():
try:
item = get_inventory_item(InventoryItem(id_=row[0]), db)
cart.items.append(ShoppingCartItem(item=item, price=row[1], qty=row[2]))
except Exception as e:
print("invalid purchase item:", e)
cur.close()
return cart
def get_user_purchases(user, db=None):
"""
Gets all purchases by user.
:param user: User, the user to find purchases for
:param db: optional, the database connection
"""
db = db or get_db()
cur = db.cursor()
# insert the purchase
cur.execute("""
SELECT PurchaseID, TotalPrice, CreditCard, Address
FROM Purchase
WHERE Username=?
""", [user.username])
purchases = []
for row1 in cur.fetchall():
purchase = Purchase(username=user.username, id_=row1[0], total_price=row1[1],
credit_card=row1[2], address=Address().from_str(row1[3]))
cur.execute("""
SELECT InventoryItemID, Price, Quantity
FROM PurchaseItem
WHERE PurchaseID=?
""", [purchase.id_])
for row2 in cur.fetchall():
item = get_inventory_item(InventoryItem(row2[0]), db)
purchase.items.append(ShoppingCartItem(item=item, price=row2[1], qty=row2[2]))
purchases.append(purchase)
cur.close()
return purchases
def cart_remove():
if request.args.get('id') is None:
return redirect('/cart')
id_ = request.args.get('id')
qty = request.args.get('qty')
db.remove_from_cart(user=User(current_user.get_id()),
item=ShoppingCartItem(item=InventoryItem(id_=id_)),
qty=qty)
return redirect('/cart')
def cart_update():
for id_, qty in request.args.items():
# this makes sure we only use ints
# noinspection PyBroadException
try:
qty = int(qty)
inv_item = db.get_inventory_item(InventoryItem(id_))
if inv_item.quantity >= qty:
db.update_cart(user=User(current_user.get_id()),
item=ShoppingCartItem(item=inv_item),
qty=qty)
else:
flask.flash(
"<b>Exceeds stock:</b> {} has no more than {} items available."
.format(inv_item.name, inv_item.quantity), "warning")
except Exception:
continue
return redirect('/cart')
def get_purchase(purchase, db=None):
"""
Gets a purchase from the database based on PurchaseID
:param purchase: Purchase, must have id
:param db: optional, the database connection
"""
db = db or get_db()
cur = db.cursor()
cur.execute("""
SELECT Username, TotalPrice, CreditCard, Address
FROM Purchase
WHERE PurchaseID = ?
""", [purchase.id_])
row = cur.fetchone()
try:
purchase = Purchase(id_=purchase.id_, username=row[0], total_price=row[1],
credit_card=row[2], address=Address().from_str(row[3]))
except Exception as e:
print("invalid purchase:", e)
cur.execute("""
SELECT InventoryItemID, Price, Quantity
FROM PurchaseItem
WHERE pi.PurchaseID = ?
""", [purchase.id_])
for row in cur.fetchall():
try:
item = get_inventory_item(InventoryItem(id_=row[0]), db)
purchase.items.append(ShoppingCartItem(item=item, price=row[1], qty=row[2]))
except Exception as e:
print("invalid purchase item:", e)
cur.close()
return purchase
def clean_hdnValidationHash(self):
""" Ensures that the validation hash gotten from sent form is correct. """
given_hash = self.cleaned_data.get("hdnValidationHash")
our_hash = ShoppingCartItem.validation_hash_for_shopping_cart(request)
if not given_hash == our_hash:
self.add_common_error(CHECKOUT_ERR_MSG_INVALID_HASH)
def build_delivery_address_form(request):
""" Builds a form class representing form asking for delivery addresses for items of an order. """
def init(self, *args, **kwargs):
kwargs["initial"] = self.__initial
super(self.__class__, self).__init__(*args, **kwargs)
def has_items(self):
""" Returns True if there are items which to choose addresses for. """
return self.__items.exists()
def has_addresses(self):
""" Returns True if there are addresses which to choose from. """
return self.__addresses.exists()
def get_address_fields(self):
""" Iterates through all address field_dict in form. """
for name in self.__address_fields:
yield BoundField(self, self.__address_fields[name], name)
def get_item_address_pairs(self):
""" Iterates through all (order items / address) pairs displayed on the form. """
for field_name in self.__address_fields:
yield (self.__items.get(id__exact=field_name.split("_")[1]),
self.cleaned_data.get(field_name))
def clean_hdnValidationHash(self):
""" Ensures that the validation hash gotten from sent form is correct. """
given_hash = self.cleaned_data.get("hdnValidationHash")
our_hash = ShoppingCartItem.validation_hash_for_shopping_cart(request)
if not given_hash == our_hash:
self.add_common_error(CHECKOUT_ERR_MSG_INVALID_HASH)
items = ShoppingCartItem.items_of_user_with_albums_and_addresses(
request.user)
addresses = Address.addresses_of_user(request.user)
validation_hash = ShoppingCartItem.validation_hash_for_shopping_cart(
request)
field_dict = {}
address_field_dict = {}
initial_value_dict = {}
field_dict["hdnValidationHash"] = forms.CharField(
widget=forms.HiddenInput())
initial_value_dict["hdnValidationHash"] = validation_hash
for item in items:
field_name = u"cmbAddress_" + unicode(item.id)
new_field = DeliveryAddressChoiceField(queryset=addresses,
empty_label=None,
label=item.album.title)
field_dict[field_name] = new_field
address_field_dict[field_name] = new_field
if item.deliveryAddress:
initial_value_dict[field_name] = item.deliveryAddress
members = {
"__request": request,
"__items": items,
"__addresses": addresses,
"__validation_hash": validation_hash,
"base_fields": field_dict,
"__address_fields": address_field_dict,
"__initial": initial_value_dict,
"has_items": has_items,
"has_addresses": has_addresses,
"address_fields": get_address_fields,
"item_address_pairs": get_item_address_pairs,
"clean_hdnValidationHash": clean_hdnValidationHash,
"__init__": init
}
return type("DeliveryAddressForm", (CommonAlbumizerBaseForm, ), members)
def clean_hdnValidationHash(self):
""" Ensures that the validation hash gotten from sent form is correct. """
given_hash = self.cleaned_data.get("hdnValidationHash")
our_hash = ShoppingCartItem.validation_hash_for_shopping_cart(request)
if not given_hash == our_hash:
self.add_common_error(CHECKOUT_ERR_MSG_INVALID_HASH)
def build_delivery_address_form(request):
""" Builds a form class representing form asking for delivery addresses for items of an order. """
def init(self, *args, **kwargs):
kwargs["initial"] = self.__initial
super(self.__class__, self).__init__(*args, **kwargs)
def has_items(self):
""" Returns True if there are items which to choose addresses for. """
return self.__items.exists()
def has_addresses(self):
""" Returns True if there are addresses which to choose from. """
return self.__addresses.exists()
def get_address_fields(self):
""" Iterates through all address field_dict in form. """
for name in self.__address_fields:
yield BoundField(self, self.__address_fields[name], name)
def get_item_address_pairs(self):
""" Iterates through all (order items / address) pairs displayed on the form. """
for field_name in self.__address_fields:
yield (self.__items.get(id__exact = field_name.split("_")[1]),
self.cleaned_data.get(field_name))
def clean_hdnValidationHash(self):
""" Ensures that the validation hash gotten from sent form is correct. """
given_hash = self.cleaned_data.get("hdnValidationHash")
our_hash = ShoppingCartItem.validation_hash_for_shopping_cart(request)
if not given_hash == our_hash:
self.add_common_error(CHECKOUT_ERR_MSG_INVALID_HASH)
items = ShoppingCartItem.items_of_user_with_albums_and_addresses(request.user)
addresses = Address.addresses_of_user(request.user)
validation_hash = ShoppingCartItem.validation_hash_for_shopping_cart(request)
field_dict = {}
address_field_dict = {}
initial_value_dict = {}
field_dict["hdnValidationHash"] = forms.CharField(
widget = forms.HiddenInput()
)
initial_value_dict["hdnValidationHash"] = validation_hash
for item in items:
field_name = u"cmbAddress_" + unicode(item.id)
new_field = DeliveryAddressChoiceField(
queryset = addresses,
empty_label = None,
label = item.album.title
)
field_dict[field_name] = new_field
address_field_dict[field_name] = new_field
if item.deliveryAddress:
initial_value_dict[field_name] = item.deliveryAddress
members = {
"__request": request,
"__items": items,
"__addresses": addresses,
"__validation_hash": validation_hash,
"base_fields": field_dict,
"__address_fields": address_field_dict,
"__initial": initial_value_dict,
"has_items": has_items,
"has_addresses": has_addresses,
"address_fields": get_address_fields,
"item_address_pairs": get_item_address_pairs,
"clean_hdnValidationHash": clean_hdnValidationHash,
"__init__": init
}
return type("DeliveryAddressForm", (CommonAlbumizerBaseForm,), members)
