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import pymongo
import os
from config import DATABASE, COLLECTION
from logger import get_logger
logger = get_logger()
class DBWrite:
"""
Inserts processed news into MongoDB
"""
def __init__(self):
self.url = os.getenv('DB_URL')
self.database = DATABASE
self.collection = COLLECTION
self.__client = None
self.__error = 0
def __connect(self):
try:
self.__client = pymongo.MongoClient(self.url)
_ = self.__client.list_database_names()
except Exception as conn_exception:
self.__error = 1
self.__close_connection()
self.__client = None
raise
def __insert(self, documents):
try:
db = self.__client[self.database]
coll = db[self.collection]
coll.drop()
coll.insert_many(documents=documents)
except Exception as insert_err:
self.__error = 1
self.__close_connection()
raise
def __close_connection(self):
if self.__client is not None:
self.__client.close()
self.__client = None
def insert_news_into_db(self, documents: list):
logger.warning('Entering insert_news_into_db()')
if self.url is not None:
if self.__error == 0:
self.__connect()
if self.__error == 0:
self.__insert(documents=documents)
if self.__error == 0:
print("Insertion Successful")
if self.__client is not None:
self.__close_connection()
logger.warning('Exiting insert_news_into_db()')
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