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[Sandbox-CVS] Sandbox/ianbicking/misc ShoppingCartExample.py,NONE,1.1 ShoppingCart.py,NONE,1.1
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From: <ian...@us...> - 2003-08-26 19:56:25
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Update of /cvsroot/webware-sandbox/Sandbox/ianbicking/misc
In directory sc8-pr-cvs1:/tmp/cvs-serv20429
Added Files:
ShoppingCartExample.py ShoppingCart.py
Log Message:
Added (old) shopping cart
--- NEW FILE: ShoppingCartExample.py ---
from lib.SitePage import *
from lib.ShoppingCart import ShoppingCart
from urllib import quote
from lib.Invoice import Invoice
from lib.Item import Item
class ShoppingCartExample(SitePage):
def title(self):
return 'Shopping cart'
def writeContent(self):
req = self.request()
pieces = asList(req.field('piece_name', None))
ses = self.session()
shoppingCart = ses.value('shoppingCart', None) or \
ShoppingCart(displayer=PieceDisplayer,
minShipping=5.00)
shoppingCart.act(req.fields())
ses.setValue('shoppingCart', shoppingCart)
if req.hasField('checkout'):
return self.checkout()
self.write(shoppingCart.html())
self.write('<br><a href="%s">Return to %s</a>\n'
% (req.field('returnTo'),
req.field('returnToDesc')))
def checkout(self):
ses = self.session()
shoppingCart = ses.value('shoppingCart')
vars = {}
vars['cmd'] = '_xclick'
vars['business'] = resources.paypalBusiness
totalItems = 0
totalPrice = 0.0
totalShipping = 0.0
itemNames = []
invoicePieceInserts = []
insertItems = []
for itemID, item in shoppingCart.items.items():
quantity = shoppingCart.itemQuantity[itemID]
insertItems.append((itemID, quantity))
totalItems += quantity
totalPrice += item.price() * quantity
totalShipping += item.shipping() * quantity
if quantity == 1:
itemNames.append(item.description())
elif quantity != 0:
itemNames.append('%i of %s' % (quantity, item.description()))
itemName = ", ".join(itemNames)
if len(itemName) > 127:
itemName = "shopping cart with %i items" % totalItems
totalShipping = max(5.0, totalShipping)
invoice = Invoice.new(status = 'pending_paypal_return',
totalPrice=totalPrice,
totalShipping=totalShipping)
invoice.set(items=insertItems)
vars['item_name'] = itemName
vars['item_number'] = str(invoice.id())
vars['amount'] = '%.2f' % totalPrice
vars['shipping'] = '%.2f' % totalShipping
vars['return'] = 'http://murphyarts.colorstudy.net/emily/thankyou/%i' % invoice.id()
url = 'https://www.paypal.com/cgi-bin/webscr?'
url += '&'.join(map(lambda x: x[0] + '=' + quote(x[1]),
vars.items()))
self.response().sendRedirect(url)
class PieceDisplayer:
fieldOrder = (('Description', 'description'), (' ', 'image'))
def __init__(self, id):
self._id = id
def image(self):
return Item(self._id).thumbImgSrc()
def maxQuantity(self):
return Item(self._id).inventory()
def price(self):
return Item(self._id).price()
def shipping(self):
return Item(self._id).shipping()
def description(self):
return Item(self._id).title()
--- NEW FILE: ShoppingCart.py ---
from StdLib import asList, htmlEncode
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
True, False = (1==1), (0==1)
class ShoppingCart:
def __init__(self, displayer=None, minShipping=0.00,
checkoutButton='<input type="submit" name="checkout" value="Purchase now">'):
self.itemQuantity = {}
self.items = {}
self.itemDisplayer = displayer
self.minShipping = minShipping
self.messages = []
self.checkoutButton = checkoutButton
def act(self, fields):
for item in asList(fields.get('addItem', [])):
self.itemQuantity[item] = self.itemQuantity.get(item, 0) + 1
if not self.items.has_key(item):
self.items[item] = self.itemDisplayer(item)
for item in asList(fields.get('deleteItem', [])):
del self.itemQuantity[item]
del self.items[item]
for key, value in fields.items():
if key.startswith("editItem-"):
item = key[10:]
try:
self.itemQuantity[item] = int(value)
if not self.items.has_key(item):
self.items[item] = self.itemDisplayer(item)
self.checkQuantity(item)
except ValueError:
pass
elif key.startswith("deleteItem-"):
item = key[12:]
if self.itemQuantity.has_key(item):
del self.itemQuantity[item]
del self.items[item]
for itemID in self.items.keys():
self.checkQuantity(itemID)
self._returnTo = fields.get('returnTo', '')
self._returnToDesc = fields.get('returnToDesc', '')
def html(self, withEndForm=True):
out = StringIO()
for message in self.messages:
out.write('<span style="color: #ffffff; background-color: #990000">%s</span><br>\n' % message)
self.messages = []
if not self.items:
out.write('\n<br>Your cart is empty')
return out.getvalue()
showQuantities = False
priceTotal = 0.0
shippingTotal = 0.0
for item in self.items.keys():
if self.items[item] != 1 or self.itemQuantity[item] != 1:
showQuantities = True
out.write('<form method="POST">\n')
out.write('<input type="hidden" name="returnTo" value="%s">\n'
% htmlEncode(self._returnTo))
out.write('<input type="hidden" name="returnToDesc" value="%s">\n'
% htmlEncode(self._returnToDesc))
out.write('<table cellspacing=3>')
for description, attr in self.itemDisplayer.fieldOrder:
out.write('<th>%s</th>' % description)
out.write('<th>Price Each</th>')
if showQuantities:
out.write('<th>Quantity</th><th>Total price</th>')
out.write('<th>Shipping</th>')
for item in self.items.keys():
out.write('<tr>\n')
for description, attr in self.itemDisplayer.fieldOrder:
value = getattr(self.items[item], attr)
if type(value) is type(self.html):
value = value()
out.write('<td bgcolor="#000055">%s</td>\n' % value)
out.write('<td bgcolor="#000055">$%.2f</td>\n' % self.items[item].price())
if self.itemQuantity[item] == 1 and \
self.items[item].maxQuantity() == 1 and showQuantities:
out.write('<td bgcolor="#000055">%s</td>\n' % self.itemQuantity[item])
elif showQuantities:
out.write('<td bgcolor="#000055"><input type="text" size="2" name="editItem-%s" value="%s">\n'
% (item, self.itemQuantity[item]))
out.write('<input type="submit" value="update"></td>\n')
if showQuantities:
out.write('<td bgcolor="#000055">$%.2f</td>\n' % (self.items[item].price() * self.itemQuantity[item]))
out.write('<td bgcolor="#000055">$%.2f</td>\n' % (self.items[item].shipping() * self.itemQuantity[item]))
out.write('<td><input type="submit" name="deleteItem-%s" value="remove"></td>\n'
% item)
priceTotal += self.items[item].price() * self.itemQuantity[item]
shippingTotal += self.items[item].shipping() * self.itemQuantity[item]
out.write('</tr>\n')
totalCols = len(self.itemDisplayer.fieldOrder) + 3
if showQuantities:
totalCols += 2
out.write('<tr><td bgcolor="#000055" colspan=%i align=right>Subtotal:<td>\n'
% (totalCols - 4))
out.write('<td bgcolor="#000055">$%.2f</td>\n' % priceTotal)
if self.minShipping > shippingTotal:
out.write('<td bgcolor="#000055">$%.2f</td>\n' % self.minShipping)
out.write('<td bgcolor="#000055">($%.2f minimum shipping)</td>\n' % self.minShipping)
shippingTotal = self.minShipping
else:
out.write('<td bgcolor="#000055">$%.2f</td>\n' % shippingTotal)
out.write('<td></td>\n')
out.write('</tr>\n')
out.write('<tr><td colspan=%i bgcolor="#000055" align=right>Total:</td>\n'
% (totalCols - 1))
out.write('<td bgcolor="#000055"><b>$%.2f</b></td></tr>\n' % (priceTotal + shippingTotal))
out.write('</table>')
out.write('<center>%s</center>' % self.checkoutButton)
if withEndForm:
out.write('</form>')
return out.getvalue()
def checkQuantity(self, item):
if self.itemQuantity[item] > self.items[item].maxQuantity():
self.messages.append("I'm sorry, but you cannot order more than %i of %s" % (self.items[item].maxQuantity(), self.items[item].description()))
self.itemQuantity[item] = self.items[item].maxQuantity()
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