-# -*- coding: utf-8 -*-
-#######################################################################################
-# Copyright © 2009 Benoît Pin <pin@cri.ensmp.fr> #
-# Plinn - http://plinn.org #
-# #
-# #
-# This program is free software; you can redistribute it and/or #
-# modify it under the terms of the GNU General Public License #
-# as published by the Free Software Foundation; either version 2 #
-# of the License, or (at your option) any later version. #
-# #
-# This program is distributed in the hope that it will be useful, #
-# but WITHOUT ANY WARRANTY; without even the implied warranty of #
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
-# GNU General Public License for more details. #
-# #
-# You should have received a copy of the GNU General Public License #
-# along with this program; if not, write to the Free Software #
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. #
-#######################################################################################
-""" Cart definition used to store buyable prints
-
-"""
-from Globals import InitializeClass, Persistent, PersistentMapping
-from Acquisition import Implicit
-from AccessControl import ModuleSecurityInfo
-from Products.CMFCore.utils import getToolByName
-from exceptions import SoldOutError, CartLockedError
-from tool import COPIES_COUNTERS
-from order import CopiesCounters
-
-from logging import getLogger
-console = getLogger('Products.photoprint.cart')
-
-CART_ITEM_KEYS = ['cmf_uid', 'printing_template', 'quantity']
-
-msecurity = ModuleSecurityInfo('Products.photoprint.cart')
-msecurity.declarePublic('PrintCart')
-
-class PrintCart(Persistent, Implicit) :
- """
- items are store like that:
- {<uid>:
- {<template>:quantity
- ,...}
- , ...
- }
- """
-
- __allow_access_to_unprotected_subobjects__ = 1
-
- def __init__(self) :
- self._uids = PersistentMapping()
- self._order = tuple() # products sequence order
- self._shippingInfo = PersistentMapping()
- self._confirmed = False
- self.pendingOrderPath = ''
-
- def setShippingInfo(self, **kw) :
- self._shippingInfo.update(kw)
-
- @property
- def locked(self):
- return self._confirmed
-
- def append(self, context, item) :
- if self.locked :
- raise CartLockedError
- assert isinstance(item, dict)
- keys = item.keys()
- keys.sort()
- assert keys == CART_ITEM_KEYS
-
- pptool = getToolByName(context, 'portal_photo_print')
- uidh = getToolByName(context, 'portal_uidhandler')
-
- uid = item['cmf_uid']
- template = item['printing_template']
- quantity = item['quantity']
-
- photo = uidh.getObject(uid)
- pOptions = pptool.getPrintingOptionsContainerFor(photo)
- template = getattr(pOptions, template)
- templateId = template.getId()
-
- reference = template.productReference
-
- # check / update counters
- if template.maxCopies :
- if not hasattr(photo.aq_base, COPIES_COUNTERS) :
- setattr(photo, COPIES_COUNTERS, CopiesCounters())
- counters = getattr(photo, COPIES_COUNTERS)
- alreadySold = counters.get(reference)
-
- if (alreadySold + quantity) > template.maxCopies :
- raise SoldOutError(template.maxCopies - alreadySold)
- else :
- counters[reference] = alreadySold + quantity
-
- if not self._uids.has_key(uid) :
- self._uids[uid] = PersistentMapping()
- self._order = self._order + (uid,)
-
- if not self._uids[uid].has_key(templateId) :
- self._uids[uid][templateId] = PersistentMapping()
- self._uids[uid][templateId]['reference'] = reference
- self._uids[uid][templateId]['quantity'] = 0
-
- self._uids[uid][templateId]['quantity'] += quantity
-
- def update(self, context, item) :
- if self.locked :
- raise CartLockedError
- assert isinstance(item, dict)
- keys = item.keys()
- keys.sort()
- assert keys == CART_ITEM_KEYS
-
- pptool = getToolByName(context, 'portal_photo_print')
- uidh = getToolByName(context, 'portal_uidhandler')
-
- uid = item['cmf_uid']
- template = item['printing_template']
- quantity = item['quantity']
-
- photo = uidh.getObject(uid)
- pOptions = pptool.getPrintingOptionsContainerFor(photo)
- template = getattr(pOptions, template)
- templateId = template.getId()
- reference = template.productReference
-
- currentQuantity = self._uids[uid][templateId]['quantity']
- delta = quantity - currentQuantity
- if template.maxCopies :
- counters = getattr(photo, COPIES_COUNTERS)
- if delta > 0 :
- already = counters[reference]
- if (already + delta) > template.maxCopies :
- raise SoldOutError(template.maxCopies - already)
- counters[reference] += delta
-
- self._uids[uid][templateId]['quantity'] += delta
-
- def remove(self, context, uid, templateId) :
- if self.locked :
- raise CartLockedError
- pptool = getToolByName(context, 'portal_photo_print')
- uidh = getToolByName(context, 'portal_uidhandler')
-
- photo = uidh.getObject(uid)
- pOptions = pptool.getPrintingOptionsContainerFor(photo)
- template = getattr(pOptions, templateId)
- reference = template.productReference
-
- quantity = self._uids[uid][templateId]['quantity']
- if template.maxCopies :
- counters = getattr(photo, COPIES_COUNTERS)
- counters[reference] -= quantity
-
- del self._uids[uid][templateId]
- if not self._uids[uid] :
- del self._uids[uid]
- self._order = tuple([u for u in self._order if u != uid])
-
-
- def __iter__(self) :
- for uid in self._order :
- item = {}
- item['cmf_uid'] = uid
- for templateId, rq in self._uids[uid].items() :
- item['printing_template'] = templateId
- item['quantity'] = rq['quantity']
- yield item
-
- def __nonzero__(self) :
- return len(self._order) > 0
-
projects / photoprint.git / blobdiff