class CCart(object):
def __init__(self):
self.scart = STrade()
self.sproduct = SProducts()
@token_required
def add(self):
"""添加购物车"""
data = parameter_required(('skuid', ))
skuid = data.get('skuid')
try:
num = int(data.get('canums', 1))
except TypeError as e:
raise ParamsError('num参数类型错误')
usid = request.user.id
is_exists = self.scart.get_card_one({'USid': usid, 'SKUid': skuid})
if is_exists:
# 已存在
caid = is_exists.CAid
with self.scart.auto_commit() as session:
new_nums = is_exists.CAnums
if new_nums <= 0:
# 数目过小则为删除
session.query(Carts).filter_by_({'CAid': caid}).update({
'isdelete': True
})
msg = '删除购物车成功'
else:
# 更新数据
session.query(Carts).filter_by_({'CAid': caid}).update({
'CAnums': Carts.CAnums + num
})
msg = '更新购物车成功'
else:
# 不存在
with self.scart.auto_commit() as session:
sku = session.query(ProductSku).filter_by_({'SKUid': skuid}).first_('sku不存在')
prid = sku.PRid
product = session.query(Products).filter_by_({'PRid': prid}).first_('商品不存在')
pbid = product.PBid
if num <= 0:
raise ParamsError('num参数错误')
cart = Carts.create({
'CAid': str(uuid.uuid4()),
'USid': usid,
'SKUid': skuid,
'CAnums': num,
'PBid': pbid,
'PRid': prid
})
msg = '添加购物车成功'
session.add(cart)
return Success(msg)
@token_required
def update(self):
"""更新购物车"""
data = parameter_required(('caid', ))
caid = data.get('caid')
usid = request.user.id
card = self.scart.get_card_one({'CAid': caid, 'USid': usid}, error='购物车不存在') # card就是cart.
# 默认的sku和数量
skuid = data.get('skuid') or card.SKUid
try:
num = int(data.get('canums', card.CAnums))
if num < 0:
raise TypeError()
except TypeError as e:
raise ParamsError('num类型错误')
msg = '更新成功'
with self.scart.auto_commit() as session:
# 数量为0执行删除
if num == 0:
session.query(Carts).filter_by({'CAid': caid}).delete_()
msg = '删除成功'
else:
session.query(ProductSku).filter_by_({'SKUid': skuid}).first_('商品sku不存在')
session.query(Carts).filter_by({'CAid': caid}).update({
'SKUid': skuid,
'CAnums': num
})
return Success(msg)
@token_required
def list(self):
"""个人购物车列表"""
usid = request.user.id
my_carts = self.scart.get_card_list({'USid': usid})
pb_list = []
new_cart_list = []
product_num = 0
for cart in my_carts:
pbid = cart.PBid
product = self.sproduct.get_product_by_prid(cart.PRid) # 商品
if not product:
continue
product.PRattribute = json.loads(product.PRattribute)
pb = self.sproduct.get_product_brand_one({'PBid': pbid})
if not pb:
continue
cart_sku = self.sproduct.get_sku_one({'SKUid': cart.SKUid}) # 购物车的sku
if not cart_sku:
continue
cart_sku.SKUattriteDetail = json.loads(cart_sku.SKUattriteDetail)
# skuvalue = self.sproduct.get_sku_value({'PRid': cart.PRid}) # 商品的skuvalue
# 填充商品
product.hide('PRdesc')
product.fill('PRstatus_en', ProductStatus(product.PRstatus).name)
# 商品sku
skus = self.sproduct.get_sku({'PRid': product.PRid})
sku_value_item = []
for sku in skus:
sku.SKUattriteDetail = json.loads(sku.SKUattriteDetail)
sku_value_item.append(sku.SKUattriteDetail)
product.fill('skus', skus)
# 商品sku value
sku_value_item_reverse = []
for index, name in enumerate(product.PRattribute):
value = list(set([attribute[index] for attribute in sku_value_item]))
value = sorted(value)
temp = {
'name': name,
'value': value
}
sku_value_item_reverse.append(temp)
product.fill('SkuValue', sku_value_item_reverse)
# 填充购物车
cart.fill('sku', cart_sku)
cart.fill('product', product)
# 小计
# cart.subtotal =
# 数量
product_num += 1
# 店铺分组
if pbid not in pb_list:
new_cart_list.append({'cart': [cart], 'pb': pb})
pb_list.append(pbid)
else:
index = pb_list.index(pbid)
new_cart_list[index]['cart'].append(cart)
return Success(data=new_cart_list).get_body(product_num=product_num)
@token_required
def destroy(self):
"""批量个人购物车"""
data = parameter_required()
usid = request.user.id
caids = data.get('caids')
if isinstance(caids, list) and len(caids) == 0:
raise ParamsError('caids 为空')
if not caids:
caids = []
if not isinstance(caids, list):
raise ParamsError('caids 参数错误')
# 删除
with self.scart.auto_commit() as session:
session.query(Carts).filter_(
Carts.CAid.in_(caids),
Carts.USid == usid
).delete_(synchronize_session=False)
return Success('删除成功')
class CCart(object):
def __init__(self):
self.scart = STrade()
self.sproduct = SProducts()
@token_required
def add(self):
"""添加购物车"""
data = parameter_required(('skuid', ))
try:
cafrom = CartFrom(data.get('cafrom')).value
current_app.logger.info('获取到了cafrom value = {}'.format(cafrom))
except:
current_app.logger.info('cafrom 参数异常')
cafrom = 10
contentid = data.get('contentid')
# todo 前端目前只会在限时活动传该参数
if cafrom == CartFrom.time_limited.value and not contentid:
current_app.logger.info('miss content cafrom {}'.format(cafrom))
raise ParamsError('非活动商品加入购物车参数异常')
skuid = data.get('skuid')
try:
num = int(data.get('canums', 1))
except TypeError as e:
raise ParamsError('num参数类型错误')
usid = request.user.id
is_exists = self.scart.get_card_one({
'USid': usid,
'SKUid': skuid,
'CAfrom': cafrom
})
if is_exists:
# 已存在
caid = is_exists.CAid
with self.scart.auto_commit() as session:
new_nums = is_exists.CAnums
if new_nums <= 0:
# 数目过小则为删除
session.query(Carts).filter_by_({
'CAid': caid
}).update({'isdelete': True})
msg = '删除购物车成功'
else:
# 更新数据
session.query(Carts).filter_by_({
'CAid': caid
}).update({'CAnums': Carts.CAnums + num})
msg = '更新购物车成功'
else:
# 不存在
with self.scart.auto_commit() as session:
sku = session.query(ProductSku).filter_by_({
'SKUid': skuid
}).first_('sku不存在')
prid = sku.PRid
product = session.query(Products).filter_by_({
'PRid': prid
}).first_('商品不存在')
pbid = product.PBid
if num <= 0:
raise ParamsError('num参数错误')
cart = Carts.create({
'CAid': str(uuid.uuid4()),
'USid': usid,
'SKUid': skuid,
'CAnums': num,
'PBid': pbid,
'PRid': prid,
'Contentid': contentid,
'CAfrom': cafrom
})
msg = '添加购物车成功'
session.add(cart)
return Success(msg)
@token_required
def update(self):
"""更新购物车"""
data = parameter_required(('caid', ))
caid = data.get('caid')
usid = request.user.id
card = self.scart.get_card_one({
'CAid': caid,
'USid': usid
},
error='购物车不存在') # card就是cart.
# 默认的sku和数量
skuid = data.get('skuid') or card.SKUid
try:
num = int(data.get('canums', card.CAnums))
if num < 0:
raise TypeError()
except TypeError as e:
raise ParamsError('num类型错误')
msg = '更新成功'
with self.scart.auto_commit() as session:
# 数量为0执行删除
if num == 0:
session.query(Carts).filter_by({'CAid': caid}).delete_()
msg = '删除成功'
else:
session.query(ProductSku).filter_by_({
'SKUid': skuid
}).first_('商品sku不存在')
session.query(Carts).filter_by({
'CAid': caid
}).update({
'SKUid': skuid,
'CAnums': num
})
return Success(msg)
@token_required
def list(self):
"""个人购物车列表"""
usid = request.user.id
my_carts = self.scart.get_card_list({'USid': usid})
pb_list = []
new_cart_list = []
product_num = 0
for cart in my_carts:
pbid = cart.PBid
car_from = cart.CAfrom
product = self.sproduct.get_product_by_prid(cart.PRid) # 商品
if not product:
continue
product.PRattribute = json.loads(product.PRattribute)
pb = self.sproduct.get_product_brand_one({'PBid': pbid})
if not pb:
continue
cart_sku = self.sproduct.get_sku_one({'SKUid':
cart.SKUid}) # 购物车的sku
if not cart_sku:
continue
cart_sku.SKUattriteDetail = json.loads(cart_sku.SKUattriteDetail)
# skuvalue = self.sproduct.get_sku_value({'PRid': cart.PRid}) # 商品的skuvalue
# 填充商品
product.hide('PRdesc')
product.fill('PRstatus_en', ProductStatus(product.PRstatus).name)
# 商品sku
skus = self.sproduct.get_sku({'PRid': product.PRid})
sku_value_item = []
for sku in skus:
sku.SKUattriteDetail = json.loads(sku.SKUattriteDetail)
sku_value_item.append(sku.SKUattriteDetail)
product.fill('skus', skus)
# 商品sku value
sku_value_item_reverse = []
for index, name in enumerate(product.PRattribute):
value = list(
set([attribute[index] for attribute in sku_value_item]))
value = sorted(value)
temp = {'name': name, 'value': value}
sku_value_item_reverse.append(temp)
product.fill('SkuValue', sku_value_item_reverse)
# 填充活动商品信息
# 填充购物车
cart.fill('sku', cart_sku)
cart.fill('product', product)
if car_from == CartFrom.time_limited.value:
self._fill_tlp(cart)
# 小计
# cart.subtotal =
# 数量
product_num += 1
# 店铺分组
if pbid not in pb_list:
new_cart_list.append({'cart': [cart], 'pb': pb})
pb_list.append(pbid)
else:
index = pb_list.index(pbid)
new_cart_list[index]['cart'].append(cart)
return Success(data=new_cart_list).get_body(product_num=product_num)
@token_required
def destroy(self):
"""批量个人购物车"""
data = parameter_required()
usid = request.user.id
caids = data.get('caids')
if isinstance(caids, list) and len(caids) == 0:
raise ParamsError('caids 为空')
if not caids:
caids = []
if not isinstance(caids, list):
raise ParamsError('caids 参数错误')
# 删除
with self.scart.auto_commit() as session:
session.query(Carts).filter_(
Carts.CAid.in_(caids),
Carts.USid == usid).delete_(synchronize_session=False)
return Success('删除成功')
def _fill_tlp(self, cart):
tlp = TimeLimitedProduct.query.filter_by(
TLPid=cart.Contentid,
isdelete=False,
TLAstatus=ApplyStatus.agree.value).first()
if not tlp:
current_app.logger.info('当前活动商品尚未通过审批')
return
tla = TimeLimitedActivity.query.filter_by(TLAid=tlp.TLAid,
isdelete=False).first()
if not tla and tla.TLAstatus not in [
TimeLimitedStatus.starting.value,
TimeLimitedStatus.waiting.value
]:
current_app.logger.info('当前活动已结束或者已中止 tla = {}'.format(tlp.TLAid))
return
tls = TimeLimitedSku.query.filter_by(TLPid=tlp.TLPid,
isdelete=False,
SKUid=cart.sku.SKUid).first()
if tls:
cart.sku.fill('tlsprice', tls.SKUprice)
cart.sku.fill('tlsstock', tls.TLSstock)
cart.product.fill('tlpprice', tlp.PRprice)
cart.product.fill('tlastatus', tla.TLAstatus)