def crawl_one_shop(shop, tb_category, term_factory, db):
shop_id = shop[0]
shop_type = shop[1]
shop_url = shop[2]
shop_termLimits = shop[3]
# 白名单模式暂时没有使用上,shop.mode
defaultCampaign = list(db.execute(
"select id, default_uctrac_price from campaign where shop_id=%s and system_status = 1 and delete_flag = 0" % shop_id))
if not defaultCampaign:
logger.error("can not get the default campaign for shop: %s", shop_id)
return
"""
1.setting shop crawl_status=2
2.crawler
3.setting shop crawl_status=0
"""
db.execute("update shop set crawl_status=%s where id=%s", SHOP_CRAWL_STATUS_CRAWLING, shop_id)
# 店铺的所有商品num id,从新品列表抓取获得,这里注意:可能有多条记录
allTbNumIds = list(db.execute("SELECT itemids FROM tb_shop_item WHERE shopid = %s", shop_id))
tb_numids = []
for ids in allTbNumIds:
tb_numids.extend(ids[0].split(','))
tb_numids_set = set(tb_numids)
logger.info("crawling shop: %s %s, taobao online num %s", shop_id, shop_url, len(tb_numids_set))
# 过滤
new_numids_set, offShelf_numids_set, common_numids_set = filterNumIds(db, shop_id, tb_numids_set)
logger.info("stat taobao shop %s: new_num:%s, offline_num:%s, common_num:%s" % (shop_id, len(new_numids_set), len(offShelf_numids_set), len(common_numids_set)))
new_num = 0
off2On_num = 0
black_num = 0
if len(new_numids_set) > 0:
new_item_list = doCrawl(shop_id, new_numids_set)
if new_item_list:
for dict_item in new_item_list:
num_id = str(dict_item['num_iid'])
n_cid = dict_item['cid']
tb_title = dict_item['title']
tb_detail_url = str(dict_item['detail_url'])
tb_price = float(dict_item['price'])
tb_pic_url = str(dict_item['pic_url'])
volume = 0
if dict_item.has_key('volume'):
volume = dict_item['volume']
try:
#检查该商品是否重新上架
db_item = list(db.execute(
"select id, title, pic_url, local_pic_url, price, manual_set, status from item where shop_id=%s and num_id='%s'" % (shop_id, num_id)))
if db_item:
#update
db_status = int(db_item[0][6])
db_manual_set = int(db_item[0][5])
db_price = float(db_item[0][4])
db_local_pic_url = db_item[0][3]
db_pic_url = db_item[0][2]
db_title = db_item[0][1]
db_item_id = int(db_item[0][0])
if db_status == ITEM_STATUS_BLACKLIST:
black_num += 1
continue
item = TaobaoItem(shop_id, db_item_id, num_id)
item.status = ITEM_STATUS_ACTIVE # 先置为上线状态，再检查其他属性是否有变化
# 人工设置了图片和title
if db_manual_set == 1:
if not imgExists(shop_id, db_local_pic_url):
# 图片不存在，需要重新下载,且检查价格
item.local_pic_url = db_local_pic_url
item.setPicUrl(tb_pic_url)
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
else:
# 图片存在,只检查价格
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
else:
if tb_title != db_title:
item.title = tb_title
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
# 图片路径有变化，或者原图片不存在了，都需要重新下载
if tb_pic_url != db_pic_url or not imgExists(shop_id, db_local_pic_url):
item.local_pic_url = db_local_pic_url
item.setPicUrl(tb_pic_url)
# TODO
# dbItem是下线状态，可能要重新匹配terms，
# 原来下线时并没有删除对应的item_term, 但不排除其他渠道删除，以后有需求再处理
#
item.db_update(db)
off2On_num += 1
else:
#add
item = TaobaoItem(shop_id, 0, num_id)
item.title = tb_title
item.detail_url = tb_detail_url.replace("spm=(\\.|\\d)*", "spm=2014.12669715.0.0")
item.price = tb_price
item.pic_url = tb_pic_url
item.volume = volume
item.category = tb_category.getCategoryPath(n_cid) # --->
item.termIds = item.matchTaobaoTerms(term_factory, str(shop_termLimits)) # --->
item.setPicUrl(tb_pic_url)
item.setCampaign(defaultCampaign)
item.status = ITEM_STATUS_ACTIVE
item.db_create(db)
new_num += 1
except:
logger.error("%s: %s creating failed %s", shop_id, num_id, traceback.format_exc())
continue
logger.info("shop %s crawler: new %s, back on line %s, black %s", shop_id, new_num, off2On_num, black_num)
if offShelf_numids_set:
#offline
db.execute("update item set status=2 where num_id in (%s)" % ', '.join("'" + str(s) + "'" for s in offShelf_numids_set))
logger.info("shop %s crawler: offline %s", shop_id, len(offShelf_numids_set))
"""
# 原有的逻辑中，是将已经抓取过的item过滤掉，不进行处理。
# 如果想更新title/price/pic_url速度更块一些的话，可以打开此部分代码，可保证至少4小时内全部更新一遍
update_num = 0
if common_numids_set:
#validate price pic_url
common_item_list = doCrawl(shop_id, common_numids_set)
if common_item_list:
for dict_item in common_item_list:
num_id = str(dict_item['num_iid'])
tb_title = dict_item['title']
tb_price = float(dict_item['price'])
tb_pic_url = str(dict_item['pic_url'])
db_item = list(db.execute("select id, title, pic_url, local_pic_url, price, manual_set, volume from item where shop_id=%s and num_id=%s and status = 1" % (shop_id, num_id)))
if db_item:
db_volume = int(db_item[0][6])
db_manual_set = int(db_item[0][5])
db_price = float(db_item[0][4])
db_local_pic_url = db_item[0][3]
db_pic_url = db_item[0][2]
db_title = db_item[0][1]
db_item_id = db_item[0][0]
item = TaobaoItem(shop_id, db_item_id, num_id)
is_update = False
if db_manual_set == 1:
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
is_update = True
else:
if dict_item.has_key('volume'):
if int(dict_item['volume']) != db_volume:
item.volume = int(dict_item['volume'])
is_update = True
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
is_update = True
if tb_title != db_title:
item.title = tb_title
is_update = True
if tb_pic_url != db_pic_url or not imgExists(shop_id, db_local_pic_url):
item.local_pic_url = db_local_pic_url
item.setPicUrl(tb_pic_url)
is_update = True
if is_update:
item.db_update(db)
update_num += 1
logger.info("shop %s: common %s, update %s ", shop_id, len(common_numids_set), update_num)
"""
db.execute("update shop set crawl_status=%s where id=%s", SHOP_CRAWL_STATUS_NONE, shop_id)
def crawl_one_shop(shop, tb_category, term_factory, db):
shop_id = shop[0]
shop_type = shop[1]
shop_url = shop[2]
shop_termLimits = shop[3]
# 白名单模式暂时没有使用上,shop.mode
defaultCampaign = list(db.execute(
"select id, default_uctrac_price from campaign where shop_id=%s and system_status = 1 and delete_flag = 0" % shop_id))
if not defaultCampaign:
logger.error("can not get the default campaign for shop: %s", shop_id)
return
"""
1.setting shop crawl_status=2
2.crawler
3.setting shop crawl_status=0
"""
db.execute("update shop set crawl_status=%s where id=%s", SHOP_CRAWL_STATUS_CRAWLING, shop_id)
# 店铺的所有商品num id,从新品列表抓取获得,这里注意:可能有多条记录
allTbNumIds = list(db.execute("SELECT itemids FROM tb_shop_item WHERE shopid = %s", shop_id))
tb_numids = []
for ids in allTbNumIds:
tb_numids.extend(ids[0].split(','))
tb_numids_set = set(tb_numids)
logger.info("crawling shop: %s %s, taobao online num %s", shop_id, shop_url, len(tb_numids_set))
# 过滤
new_numids_set, offShelf_numids_set, common_numids_set = filterNumIds(db, shop_id, tb_numids_set)
logger.info("stat taobao shop %s: new_num:%s, offline_num:%s, common_num:%s" % (shop_id, len(new_numids_set), len(offShelf_numids_set), len(common_numids_set)))
new_num = 0
off2On_num = 0
black_num = 0
if len(new_numids_set) > 0:
new_item_list = doCrawl(shop_id, new_numids_set)
if new_item_list:
for dict_item in new_item_list:
num_id = str(dict_item['num_iid'])
n_cid = dict_item['cid']
tb_title = dict_item['title']
tb_detail_url = str(dict_item['detail_url'])
tb_price = float(dict_item['price'])
tb_pic_url = str(dict_item['pic_url'])
volume = 0
if dict_item.has_key('volume'):
volume = dict_item['volume']
try:
#检查该商品是否重新上架
db_item = list(db.execute(
"select id, title, pic_url, local_pic_url, price, manual_set, status from item where shop_id=%s and num_id='%s'" % (shop_id, num_id)))
if db_item:
#update
db_status = int(db_item[0][6])
db_manual_set = int(db_item[0][5])
db_price = float(db_item[0][4])
db_local_pic_url = db_item[0][3]
db_pic_url = db_item[0][2]
db_title = db_item[0][1]
db_item_id = int(db_item[0][0])
if db_status == ITEM_STATUS_BLACKLIST:
black_num += 1
continue
item = TaobaoItem(shop_id, db_item_id, num_id)
item.status = ITEM_STATUS_ACTIVE # 先置为上线状态，再检查其他属性是否有变化
# 人工设置了图片和title
if db_manual_set == 1:
if not imgExists(shop_id, db_local_pic_url):
# 图片不存在，需要重新下载,且检查价格
item.local_pic_url = db_local_pic_url
item.setPicUrl(tb_pic_url)
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
else:
# 图片存在,只检查价格
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
else:
if tb_title != db_title:
item.title = tb_title
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
# 图片路径有变化，或者原图片不存在了，都需要重新下载
if tb_pic_url != db_pic_url or not imgExists(shop_id, db_local_pic_url):
item.local_pic_url = db_local_pic_url
item.setPicUrl(tb_pic_url)
# TODO
# dbItem是下线状态，可能要重新匹配terms，
# 原来下线时并没有删除对应的item_term, 但不排除其他渠道删除，以后有需求再处理
#
item.db_update(db)
off2On_num += 1
else:
#add
item = TaobaoItem(shop_id, 0, num_id)
item.title = tb_title
item.detail_url = tb_detail_url.replace("spm=(\\.|\\d)*", "spm=2014.12669715.0.0")
item.price = tb_price
item.pic_url = tb_pic_url
item.volume = volume
item.category = tb_category.getCategoryPath(n_cid) # --->
item.termIds = item.matchTaobaoTerms(term_factory, str(shop_termLimits)) # --->
item.setPicUrl(tb_pic_url)
item.setCampaign(defaultCampaign)
item.status = ITEM_STATUS_ACTIVE
item.db_create(db)
new_num += 1
except:
logger.error("%s: %s creating failed %s", shop_id, num_id, traceback.format_exc())
continue
logger.info("shop %s crawler: new %s, back on line %s, black %s", shop_id, new_num, off2On_num, black_num)
if offShelf_numids_set:
#offline
db.execute("update item set status=2 where num_id in (%s)" % ', '.join("'" + str(s) + "'" for s in offShelf_numids_set))
logger.info("shop %s crawler: offline %s", shop_id, len(offShelf_numids_set))
"""
# 原有的逻辑中，是将已经抓取过的item过滤掉，不进行处理。
# 如果想更新title/price/pic_url速度更块一些的话，可以打开此部分代码，可保证至少4小时内全部更新一遍
update_num = 0
if common_numids_set:
#validate price pic_url
common_item_list = doCrawl(shop_id, common_numids_set)
if common_item_list:
for dict_item in common_item_list:
num_id = str(dict_item['num_iid'])
tb_title = dict_item['title']
tb_price = float(dict_item['price'])
tb_pic_url = str(dict_item['pic_url'])
db_item = list(db.execute("select id, title, pic_url, local_pic_url, price, manual_set, volume from item where shop_id=%s and num_id=%s and status = 1" % (shop_id, num_id)))
if db_item:
db_volume = int(db_item[0][6])
db_manual_set = int(db_item[0][5])
db_price = float(db_item[0][4])
db_local_pic_url = db_item[0][3]
db_pic_url = db_item[0][2]
db_title = db_item[0][1]
db_item_id = db_item[0][0]
item = TaobaoItem(shop_id, db_item_id, num_id)
is_update = False
if db_manual_set == 1:
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
is_update = True
else:
if dict_item.has_key('volume'):
if int(dict_item['volume']) != db_volume:
item.volume = int(dict_item['volume'])
is_update = True
if tb_price != db_price and quickUpdatePrice(db_item_id, db):
item.price = tb_price
is_update = True
if tb_title != db_title:
item.title = tb_title
is_update = True
if tb_pic_url != db_pic_url or not imgExists(shop_id, db_local_pic_url):
item.local_pic_url = db_local_pic_url
item.setPicUrl(tb_pic_url)
is_update = True
if is_update:
item.db_update(db)
update_num += 1
logger.info("shop %s: common %s, update %s ", shop_id, len(common_numids_set), update_num)
"""
db.execute("update shop set crawl_status=%s where id=%s", SHOP_CRAWL_STATUS_NONE, shop_id)
