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Make database execute within the app context

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This commit is contained in:
Matthew Welch 2021-03-22 22:39:55 -07:00
parent c843e4b99a
commit 6ad7f2817a
2 changed files with 48 additions and 31 deletions
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5
QuizTheWord/app.py
View File

@ -6,8 +6,9 @@ from QuizTheWord.admin import admin
app = Flask(__name__) app = Flask(__name__)
environment_configuration = os.environ['CONFIGURATION_SETUP'] environment_configuration = os.environ['CONFIGURATION_SETUP']
with app.app_context():
app.config.from_object(environment_configuration) app.config.from_object(environment_configuration)
user_datastore = SQLAlchemySessionUserDatastore(database.Session, database.User, database.Role) user_datastore = SQLAlchemySessionUserDatastore(database.get_session(), database.User, database.Role)
security = Security(app, user_datastore) security = Security(app, user_datastore)
app.register_blueprint(admin.Admin) app.register_blueprint(admin.Admin)
@ -72,4 +73,6 @@ def error_404(e):
if __name__ == "__main__": if __name__ == "__main__":
with app.app_context():
database.init_db()
app.run() app.run()

66
QuizTheWord/database.py
View File

@ -3,21 +3,35 @@ from flask_security import UserMixin, RoleMixin
import sqlalchemy import sqlalchemy
from typing import Union, Optional, Literal, Type, List, Tuple from typing import Union, Optional, Literal, Type, List, Tuple
import random import random
import os from sqlalchemy import Column, JSON, String, Integer, create_engine, ForeignKey, func, ARRAY, Boolean, UnicodeText, \
from sqlalchemy import Column, JSON, String, Integer, create_engine, ForeignKey, func, ARRAY, Boolean, UnicodeText, DateTime DateTime
from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.ext.associationproxy import association_proxy from sqlalchemy.ext.associationproxy import association_proxy
from sqlalchemy.orm import sessionmaker, relationship, scoped_session from sqlalchemy.orm import sessionmaker, relationship, scoped_session
from werkzeug.utils import import_string
environment_configuration = os.environ['CONFIGURATION_SETUP'] def get_scoped_session():
config = import_string(environment_configuration) engine = create_engine(current_app.config["DB_URL"])
engine = create_engine(config.DB_URL)
session_factory = sessionmaker(bind=engine) session_factory = sessionmaker(bind=engine)
Session = scoped_session(session_factory) Base.query = scoped_session(session_factory).query_property() # This is for compatibility with Flask-Security-Too which assumes usage of Flask-Sqlalchemy
return scoped_session(session_factory)
def get_session() -> sqlalchemy.orm.session.Session:
if "session" not in g:
Session = get_scoped_session()
Session.query_property()
g.session = Session()
return g.session
def init_db():
engine = create_engine(current_app.config["DB_URL"])
Base.metadata.create_all(engine)
Base = declarative_base() Base = declarative_base()
Base.query = Session.query_property()
class User(Base, UserMixin): class User(Base, UserMixin):
@ -152,11 +166,8 @@ class MultipleChoice(Base):
} }
Base.metadata.create_all(engine)
def add_multiple_choice_question(question, answer, addresses, difficulty, hint, wrong_answers): def add_multiple_choice_question(question, answer, addresses, difficulty, hint, wrong_answers):
session: sqlalchemy.orm.session.Session = Session() session = get_session()
question_id = session.query(AllQuestions).count() question_id = session.query(AllQuestions).count()
base_question = AllQuestions(question_id, question, answer, addresses) base_question = AllQuestions(question_id, question, answer, addresses)
multiple_choice_question = MultipleChoice(question_id, difficulty, hint, wrong_answers, base_question) multiple_choice_question = MultipleChoice(question_id, difficulty, hint, wrong_answers, base_question)
@ -166,51 +177,54 @@ def add_multiple_choice_question(question, answer, addresses, difficulty, hint,
def get_all_questions() -> List[AllQuestions]: def get_all_questions() -> List[AllQuestions]:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
return session.query(AllQuestions).all() return session.query(AllQuestions).all()
def get_all_hidden_answer() -> List[HiddenAnswer]: def get_all_hidden_answer() -> List[HiddenAnswer]:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
return session.query(HiddenAnswer).all() return session.query(HiddenAnswer).all()
def get_all_multiple_choice() -> List[MultipleChoice]: def get_all_multiple_choice() -> List[MultipleChoice]:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
return session.query(MultipleChoice).all() return session.query(MultipleChoice).all()
def get_category_count(category: Union[Type[MultipleChoice], Type[HiddenAnswer], Type[AllQuestions]]) -> int: def get_category_count(category: Union[Type[MultipleChoice], Type[HiddenAnswer], Type[AllQuestions]]) -> int:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
return session.query(category).count() return session.query(category).count()
def get_question(category: Union[Type[MultipleChoice], Type[HiddenAnswer], Type[AllQuestions]], question_id: int) -> Optional[Union[MultipleChoice, HiddenAnswer, AllQuestions]]: def get_question(category: Union[Type[MultipleChoice], Type[HiddenAnswer], Type[AllQuestions]], question_id: int) -> \
session: sqlalchemy.orm.session.Session = Session() Optional[Union[MultipleChoice, HiddenAnswer, AllQuestions]]:
session = get_session()
return session.query(category).filter(category.question_id == question_id).one_or_none() return session.query(category).filter(category.question_id == question_id).one_or_none()
def get_random_question_of_difficulty(category: Union[Type[MultipleChoice], Type[HiddenAnswer]], difficulty: Literal[1, 2, 3]): def get_random_question_of_difficulty(category: Union[Type[MultipleChoice], Type[HiddenAnswer]],
session: sqlalchemy.orm.session.Session = Session() difficulty: Literal[1, 2, 3]):
session = get_session()
return session.query(category).filter(category.difficulty == difficulty).order_by(func.random()).first() return session.query(category).filter(category.difficulty == difficulty).order_by(func.random()).first()
def get_random_hidden_answer(difficulty: Optional[Literal[1, 2, 3]] = None) -> HiddenAnswer: def get_random_hidden_answer(difficulty: Optional[Literal[1, 2, 3]] = None) -> HiddenAnswer:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
if difficulty is not None: if difficulty is not None:
return session.query(HiddenAnswer).filter(HiddenAnswer.difficulty == difficulty).order_by(func.random()).first() return session.query(HiddenAnswer).filter(HiddenAnswer.difficulty == difficulty).order_by(func.random()).first()
return session.query(HiddenAnswer).order_by(func.random()).first() return session.query(HiddenAnswer).order_by(func.random()).first()
def get_random_multiple_choice(difficulty: Optional[Literal[1, 2, 3]] = None) -> MultipleChoice: def get_random_multiple_choice(difficulty: Optional[Literal[1, 2, 3]] = None) -> MultipleChoice:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
if difficulty is not None: if difficulty is not None:
return session.query(MultipleChoice).filter(MultipleChoice.difficulty == difficulty).order_by(func.random()).first() return session.query(MultipleChoice).filter(MultipleChoice.difficulty == difficulty).order_by(
func.random()).first()
return session.query(MultipleChoice).order_by(func.random()).first() return session.query(MultipleChoice).order_by(func.random()).first()
def check_answer(question_id: int, guess: str) -> Tuple[bool, str]: def check_answer(question_id: int, guess: str) -> Tuple[bool, str]:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
question: AllQuestions = session.query(AllQuestions).filter(AllQuestions.question_id == question_id).one_or_none() question: AllQuestions = session.query(AllQuestions).filter(AllQuestions.question_id == question_id).one_or_none()
if question: if question:
answer = question.answer answer = question.answer
@ -218,7 +232,7 @@ def check_answer(question_id: int, guess: str) -> Tuple[bool, str]:
def query_all_questions(offset, limit, query: dict = None, sort=None, order=None) -> Tuple[List[AllQuestions], int]: def query_all_questions(offset, limit, query: dict = None, sort=None, order=None) -> Tuple[List[AllQuestions], int]:
session: sqlalchemy.orm.session.Session = Session() session = get_session()
query_params = [] query_params = []
if query is not None: if query is not None:
for key in query.keys(): for key in query.keys():
@ -239,7 +253,7 @@ def query_all_questions(offset, limit, query: dict = None, sort=None, order=None
def update_question(question_id, question_text, answer, addresses): def update_question(question_id, question_text, answer, addresses):
session: sqlalchemy.orm.session.Session = Session() session = get_session()
question: AllQuestions = session.query(AllQuestions).get(question_id) question: AllQuestions = session.query(AllQuestions).get(question_id)
question.question = question_text question.question = question_text
question.answer = answer question.answer = answer