Comit inicial

.gitignore

@@ -0,0 +1,174 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/latest/usage/project/#working-with-version-control
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc

app.py

@@ -0,0 +1,19 @@
+from flask import Flask
+from flask_sqlalchemy import SQLAlchemy
+
+app = Flask(__name__)
+app.config.from_object('config.Config')  # Configurações do banco
+
+db = SQLAlchemy(app)  # Inicializa o banco
+
+
+@app.before_request
+def create_tables():
+    db.create_all()
+
+@app.route('/')
+def home():
+    return "Banco de dados configurado!"
+
+if __name__ == '__main__':
+    app.run(debug=True)

config.py

@@ -0,0 +1,7 @@
+import os
+
+BASE_DIR = os.path.abspath(os.path.dirname(__file__))
+
+class Config:
+    SQLALCHEMY_DATABASE_URI = f"sqlite:///{os.path.join(BASE_DIR, 'instance', 'database.db')}"
+    SQLALCHEMY_TRACK_MODIFICATIONS = False

crud.py

@@ -0,0 +1,18 @@
+from database import SessionLocal
+from models import User
+
+# Criando uma nova sessão
+session = SessionLocal()
+
+# Criando um novo usuário
+new_user = User(name="João", email="joao@email.com")
+session.add(new_user)
+session.commit()
+
+# Buscando todos os usuários
+users = session.query(User).all()
+for user in users:
+    print(user.id, user.name, user.email)
+
+# Fechando a sessão
+session.close()

database.py

@@ -0,0 +1,16 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, declarative_base
+
+# Configuração do banco de dados
+DATABASE_URL = "sqlite:///./test.db"  # SQLite
+# DATABASE_URL = "postgresql://user:password@localhost/dbname"  # PostgreSQL
+# DATABASE_URL = "mysql+mysqlconnector://user:password@localhost/dbname"  # MySQL
+
+# Criando o engine
+engine = create_engine(DATABASE_URL, echo=True)
+
+# Criando uma sessão
+SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False)
+
+# Base para os modelos ORM
+Base = declarative_base()

models.py

@@ -0,0 +1,10 @@
+from app import db  # Importa o banco de dados inicializado
+
+# Modelo de exemplo (Usuário)
+class User(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    name = db.Column(db.String(80), nullable=False)
+    email = db.Column(db.String(120), unique=True, nullable=False)
+
+    def __repr__(self):
+        return f"<User {self.name}>"