70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
|
import os
|
||
|
|
import sys
|
||
|
|
from logging.config import fileConfig
|
||
|
|
|
||
|
|
from alembic import context
|
||
|
|
from sqlalchemy import engine_from_config, pool
|
||
|
|
|
||
|
|
# Add the project root to sys.path so that models can be imported.
|
||
|
|
sys.path.insert(0, os.path.realpath(os.path.join(os.path.dirname(__file__), "..")))
|
||
|
|
|
||
|
|
from app import create_app
|
||
|
|
from models import db
|
||
|
|
|
||
|
|
# Create the Flask application to get the database URI.
|
||
|
|
app = create_app()
|
||
|
|
|
||
|
|
# Alembic Config object.
|
||
|
|
config = context.config
|
||
|
|
|
||
|
|
# Override the sqlalchemy.url with the value from the Flask config.
|
||
|
|
config.set_main_option("sqlalchemy.url", app.config["SQLALCHEMY_DATABASE_URI"])
|
||
|
|
|
||
|
|
# Set up Python logging from the alembic.ini [loggers] section.
|
||
|
|
if config.config_file_name is not None:
|
||
|
|
fileConfig(config.config_file_name)
|
||
|
|
|
||
|
|
# Target metadata for 'autogenerate' support.
|
||
|
|
target_metadata = db.metadata
|
||
|
|
|
||
|
|
|
||
|
|
def run_migrations_offline() -> None:
|
||
|
|
"""Run migrations in 'offline' mode.
|
||
|
|
|
||
|
|
Configures the context with just a URL and not an Engine.
|
||
|
|
"""
|
||
|
|
url = config.get_main_option("sqlalchemy.url")
|
||
|
|
context.configure(
|
||
|
|
url=url,
|
||
|
|
target_metadata=target_metadata,
|
||
|
|
literal_binds=True,
|
||
|
|
dialect_opts={"paramstyle": "named"},
|
||
|
|
)
|
||
|
|
|
||
|
|
with context.begin_transaction():
|
||
|
|
context.run_migrations()
|
||
|
|
|
||
|
|
|
||
|
|
def run_migrations_online() -> None:
|
||
|
|
"""Run migrations in 'online' mode.
|
||
|
|
|
||
|
|
Creates an Engine and associates a connection with the context.
|
||
|
|
"""
|
||
|
|
connectable = engine_from_config(
|
||
|
|
config.get_section(config.config_ini_section, {}),
|
||
|
|
prefix="sqlalchemy.",
|
||
|
|
poolclass=pool.NullPool,
|
||
|
|
)
|
||
|
|
|
||
|
|
with connectable.connect() as connection:
|
||
|
|
context.configure(connection=connection, target_metadata=target_metadata)
|
||
|
|
|
||
|
|
with context.begin_transaction():
|
||
|
|
context.run_migrations()
|
||
|
|
|
||
|
|
|
||
|
|
if context.is_offline_mode():
|
||
|
|
run_migrations_offline()
|
||
|
|
else:
|
||
|
|
run_migrations_online()
|