hub/persistence/repositories/CityRepo.py

56 lines
1.7 KiB
Python

"""
City repository with database CRUD operations
SPDX - License - Identifier: LGPL - 3.0 - or -later
Copyright © 2022 Concordia CERC group
Project Coder Peter Yefi peteryefi@gmail.com
"""
from city_model_structure.city import City
from persistence.models import City as ModelCity
from persistence import BaseRepo
from sqlalchemy.exc import SQLAlchemyError
from sqlalchemy import select
class CityRepo(BaseRepo):
def __init__(self):
super().__init__()
def insert(self, city: City):
model_city = ModelCity()
model_city.name = city.name
model_city.longitude = city.longitude
model_city.latitude = city.latitude
model_city.country_code = city.country_code
model_city.time_zone = city.time_zone
try:
self.session.add(model_city)
self.session.flush()
self.session.commit()
return model_city
except SQLAlchemyError as err:
print(f'Error while adding city: {err}')
def get_by_id(self, city_id: int) -> ModelCity:
"""
Fetch a City based on the id
:param city_id: the city id
:return: a city
"""
try:
return self.session.execute(select(ModelCity).where(ModelCity.id == city_id)).first()[0]
except SQLAlchemyError as err:
print(f'Error while fetching city: {err}')
def get_by_name(self, city_name: str) -> [ModelCity]:
"""
Fetch city based on the name
:param city_name: the name of the building
:return: [ModelCity] with the provided name
"""
try:
result_set = self.session.execute(select(ModelCity).where(ModelCity.name == city_name))
return [building[0] for building in result_set]
except SQLAlchemyError as err:
print(f'Error while fetching city by name: {err}')