Thomas Peetz
98 lines
3.6 KiB
Python
98 lines
3.6 KiB
Python
"""
|
|
import data from json file to MariaDB
|
|
"""
|
|
from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter
|
|
|
|
from typing import Any, AnyStr, Dict, List
|
|
import os
|
|
import json
|
|
from pathlib import Path
|
|
from sqlalchemy import create_engine
|
|
from sqlalchemy.orm import sessionmaker, Session
|
|
from db.models.base import Base
|
|
from db.models import registry
|
|
from config import get_logger
|
|
|
|
parser = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormatter)
|
|
parser.add_argument('--verbose', '-v', action='count', default=0)
|
|
parser.add_argument('--dry-run', '-m', action='store_true')
|
|
parser.add_argument('--cleanup', '-c', action='store_true')
|
|
parser.add_argument('--file', '-f', default='~/data.json')
|
|
args = parser.parse_args()
|
|
|
|
DB_USER: str = os.getenv("DB_USER", "kontor")
|
|
DB_PASSWORD: str = os.getenv("DB_PASSWORD", "kontor")
|
|
DB_SERVER: str = os.getenv("DB_SERVER", "127.0.0.1")
|
|
DB_PORT: int = int(os.getenv("DB_PORT", 5432))
|
|
DB_DBNAME: str = os.getenv("DB_DBNAME", "kontor")
|
|
DATABASE_URL: str = f"postgresql://{DB_USER}:{DB_PASSWORD}@{DB_SERVER}:{DB_PORT}/{DB_DBNAME}"
|
|
|
|
|
|
def cleanup_database(db: Session, log, dry_run: bool):
|
|
log.debug("cleanup_database")
|
|
# get tables from registry
|
|
for table in registry:
|
|
log.info(f"{table}")
|
|
model = registry[table]
|
|
entries = db.query(model).all()
|
|
for entry in entries:
|
|
if not dry_run:
|
|
db.delete(entry)
|
|
db.commit()
|
|
|
|
def load_data(filename: str, log) -> Dict[AnyStr, Dict[AnyStr, Any]]:
|
|
log.debug("load_data")
|
|
import_file = Path(filename)
|
|
if not import_file.exists():
|
|
log.info(f"File {filename} does not exist. Do nothing.")
|
|
raise FileNotFoundError()
|
|
log.info("read json file")
|
|
with open(filename, 'r') as json_file:
|
|
json_load = json.load(json_file)
|
|
return json_load
|
|
|
|
def get_ids(items: List[Any]) -> List[AnyStr]:
|
|
result: List[AnyStr] = []
|
|
for item in items:
|
|
result.append(item.id)
|
|
return result
|
|
|
|
def update_item(db: Session, import_data: Dict[AnyStr, Any], item: Any, dry_run: bool, log):
|
|
for (key, value) in import_data.items():
|
|
existing_value = getattr(item, str(key))
|
|
if existing_value != value:
|
|
if not dry_run:
|
|
log.info(f"update {key}({existing_value}) with {value}")
|
|
setattr(model, str(key), value)
|
|
db.add(item)
|
|
db.commit()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
logger = get_logger(args.verbose, "kontor")
|
|
logger.info('kontor.import started')
|
|
engine = create_engine(DATABASE_URL)
|
|
Base.metadata.create_all(bind=engine, checkfirst=True)
|
|
SessionLocal = sessionmaker(bind=engine)
|
|
with SessionLocal() as db:
|
|
if args.cleanup:
|
|
cleanup_database(db, logger, args.dry_run)
|
|
data = load_data(args.file, logger)
|
|
for tablename in data:
|
|
model = registry[tablename]
|
|
existing_items = db.query(model).all()
|
|
existing_ids = get_ids(existing_items)
|
|
logger.debug(f"found {len(existing_items)} for table {tablename}")
|
|
import_items = data[tablename]
|
|
for import_item in import_items:
|
|
if import_item['id'] in existing_ids:
|
|
logger.debug(f"update {import_item['id']}")
|
|
existing_item = db.get(model, import_item['id'])
|
|
update_item(db, import_item, existing_item, args.dry_run, logger)
|
|
existing_ids.remove(import_item['id'])
|
|
else:
|
|
logger.debug(f"import {import_item['id']}")
|
|
logger.info(f"remaining items for {tablename}: {len(existing_ids)}")
|
|
logger.info('kontor.import finished')
|
|
|