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Copy pathmongo_pipeline.py
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84 lines (72 loc) · 2.35 KB
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# -*- coding: utf-8 -*-
"""
Created on 2021-04-18 14:12:21
---------
@summary: 导出数据
---------
@author: Mkdir700
@email: mkdir700@gmail.com
"""
from typing import Dict, List, Tuple
from feapder.db.mongodb import MongoDB
from feapder.pipelines import BasePipeline
from feapder.utils.log import log
class MongoPipeline(BasePipeline):
def __init__(self):
self._to_db = None
@property
def to_db(self):
if not self._to_db:
self._to_db = MongoDB()
return self._to_db
def save_items(self, table, items: List[Dict]) -> bool:
"""
保存数据
Args:
table: 表名
items: 数据，[{},{},...]
Returns: 是否保存成功 True / False
若False，不会将本批数据入到去重库，以便再次入库
"""
try:
add_count = self.to_db.add_batch(coll_name=table, datas=items)
datas_size = len(items)
log.info(
"共导出 %s 条数据到 %s, 新增 %s条, 重复 %s 条"
% (datas_size, table, add_count, datas_size - add_count)
)
return True
except Exception as e:
log.exception(e)
return False
def update_items(self, table, items: List[Dict], update_keys=Tuple) -> bool:
"""
更新数据
Args:
table: 表名
items: 数据，[{},{},...]
update_keys: 更新的字段, 如 ("title", "publish_time")
Returns: 是否更新成功 True / False
若False，不会将本批数据入到去重库，以便再次入库
"""
try:
add_count = self.to_db.add_batch(
coll_name=table,
datas=items,
update_columns=update_keys or list(items[0].keys()),
)
datas_size = len(items)
update_count = datas_size - add_count
msg = "共导出 %s 条数据到 %s, 新增 %s 条, 更新 %s 条" % (
datas_size,
table,
add_count,
update_count,
)
if update_keys:
msg += " 更新字段为 {}".format(update_keys)
log.info(msg)
return True
except Exception as e:
log.exception(e)
return False