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e7e70daec0
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30
app.py
30
app.py
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from flask import Flask, render_template, request, jsonify
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from flask_sqlalchemy import SQLAlchemy
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# Initialize the database object
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db = SQLAlchemy()
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def create_app():
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# Create a new Flask application instance
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app = Flask(__name__)
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# Configure the SQLite database URI for the application
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app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///mydatabase.db'
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# Disable tracking modifications to SQLAlchemy objects
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app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
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# Initialize the database object with the Flask application instance
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db.init_app(app)
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# Import and initialize models, then create tables within the app context
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with app.app_context():
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from models import User # Assuming there is a file named models.py containing the User model
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from utils import check_and_create_tables # Assuming there is a file named utils.py containing the check_and_create_tables function
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check_and_create_tables(db) # Call the function to ensure tables are created if they don't exist
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return app
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if __name__ == '__main__':
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# Create and run the Flask application instance with debugging enabled
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app = create_app()
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app.run(debug=True)
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class Config:
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app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///learn.db'
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app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
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9
lernplattform/__init__.py
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9
lernplattform/__init__.py
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from flask import Flask
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from flask_sqlalchemy import SQLAlchemy
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app = Flask(__name__)
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app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///learn.db'
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app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
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db = SQLAlchemy(app)
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import lernplattform.routes
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6
lernplattform/app.py
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6
lernplattform/app.py
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from lernplattform import app
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from lernplattform.models import initialize_database
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if __name__ == '__main__':
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initialize_database() # Initialisiere die Datenbank beim Start der Anwendung
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app.run(debug=True)
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16
lernplattform/models.py
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16
lernplattform/models.py
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from lernplattform import db
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class User(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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username = db.Column(db.String(20), unique=True, nullable=False)
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email = db.Column(db.String(120), unique=True, nullable=False)
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password = db.Column(db.String(60), nullable=False)
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def __repr__(self):
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return f"User('{self.username}', '{self.email}')"
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def initialize_database():
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from lernplattform import app
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with app.app_context():
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db.create_all()
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print("Database and tables created successfully.")
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21
lernplattform/routes.py
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21
lernplattform/routes.py
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from flask import render_template, url_for, flash, redirect, jsonify
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from lernplattform import app
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from lernplattform.models import User
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@app.route('/')
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def index():
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# Render the main page with the list of users
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return render_template('index.html')
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@app.route('/users', methods=['GET'])
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def get_users():
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users = User.query.all()
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return jsonify([user.username for user in users])
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@app.route('/users', methods=['POST'])
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def create_user():
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data = request.get_json()
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new_user = User(username=data['username'], email=data['email'])
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db.session.add(new_user)
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db.session.commit()
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return jsonify({'message': 'User created'}), 201
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15
lernplattform/setup.py
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15
lernplattform/setup.py
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from setuptools import setup, find_packages
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VERSION = '0.0.1'
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setup(
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name='lernplattform',
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version=VERSION,
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license='MIT',
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description='Eine Plattform zum lernen nach dem Leitner System',
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author='Manuel Weiser',
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author_email='manuel.weiser@me.com',
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url='https://gitlab.fire-devils.org/ManuelW/Lerndatenbank',
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packages=find_packages(exclude=('tests', 'docs', instance, env, _idee, __pycache__, templates)),
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python_requires='>=3.10'
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)
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4
lernplattform/wsgi.py
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4
lernplattform/wsgi.py
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from lernplattform import app
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if __name__ == "__main__":
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app.run()
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from app import db
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class User(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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username = db.Column(db.String(80), unique=True, nullable=False)
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password = db.Column(db.String(120), unique=True, nullable=False)
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email = db.Column(db.String(120), unique=True, nullable=False)
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30
utils.py
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utils.py
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from sqlalchemy import inspect, Integer, String
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def check_and_create_tables(db):
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inspector = inspect(db.engine)
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# Überprüfen, ob die Tabelle 'user' existiert
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if not inspector.has_table('user'):
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print("Tabelle 'user' existiert nicht, sie wird erstellt.")
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db.create_all()
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else:
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print("Tabelle 'user' existiert.")
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# Überprüfen der Spalten
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columns = inspector.get_columns('user')
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column_names = [col['name'] for col in columns]
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# Benötigte Spalten
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required_columns = {
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'id': Integer,
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'username': String,
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'email': String
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}
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for col_name, col_type in required_columns.items():
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if col_name not in column_names:
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print(f"Spalte '{col_name}' fehlt, sie wird hinzugefügt.")
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with db.engine.connect() as conn:
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if col_type == Integer:
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conn.execute(f'ALTER TABLE user ADD COLUMN {col_name} INTEGER')
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elif col_type == String:
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conn.execute(f'ALTER TABLE user ADD COLUMN {col_name} STRING')
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