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Python+MongoDBメモ

Last updated at Posted at 2022-01-20

Python+MongoDBメモ

Pythonを使ってMongoDBを操作したかったので色々調べたのでメモ
随時更新予定

Pythonドライバをインストール

pip install pymongo dnspython

MongoDB接続

import pymongo

client = pymongo.MongoClient(
"mongodb+srv://[User]:[Password]@cluster0.8tpbm.mongodb.net/myFirstDatabase?retryWrites=true&w=majority")

DB追加、選択

testが存在しない場合は新規作成

db = client.test

コレクション追加、選択

testが存在しない場合は新規作成

collection = db.test

データ追加

account = {
    'account_id': 100001,
    'limit': 9000,
    'products': ['TEST1', 'TEST1-1']
}

result = collection.insert_one(account)
print(result.inserted_id)

複数件のデータ追加

accounts = [
    {'account_id': 100002, 'limit': 9000, 'products': ['TEST2', 'TEST2-1']},
    {'account_id': 100003, 'limit': 9000, 'products': ['TEST3', 'TEST3-1']}
]

result = collection.insert_many(accounts)
print(result.inserted_ids)

データ取得

account = collection.find_one({"account_id": 123456})
print(account)

複数件のデータ取得

accounts = collection.find({'$or': [{'account_id': 100002}, {'account_id': 100003}]},
sort=[('account_id', pymongo.ASCENDING)])
result = [v for v in accounts]
print(result)

データ更新

update = collection.update_one({"account_id": 100001}, {'$set': {'limit': 8000}})
print(update.matched_count)

複数件のデータ更新

update = collection.update_many({'$or': [{'account_id': 100002}, {'account_id': 100003}]},
{'$set': {'limit': 9000}})
print(update.matched_count)

データ削除

result = collection.delete_one({"account_id": 100001})
print(result.deleted_count)

複数件のデータ削除

result = collection.delete_many({'$or': [{'account_id': 100002}, {'account_id': 100003}]})
print(result.deleted_count)
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