|
import pymongo |
|
import os |
|
|
|
|
|
class DBOperations: |
|
""" |
|
Inserts processed news into MongoDB |
|
""" |
|
def __init__(self): |
|
self.url = os.getenv('DB_URL') |
|
self.database = "rss_news_db" |
|
self.collection = "rss_news" |
|
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): |
|
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() |
|
|