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import os
from logging.config import fileConfig
from alembic import context
from sqlalchemy import engine_from_config
from sqlalchemy import pool
import os
import sys
# Get the absolute path to the project root directory
project_root = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
# Add the project root directory to the Python path
sys.path.insert(0, project_root)
config = context.config
fileConfig(config.config_file_name)
from core.db import Base
target_metadata = Base.metadata
def get_url():
from core import settings
return settings.POSTGRES_DATABASE_URI
def run_migrations_offline():
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
url = get_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():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
config_data = config.get_section(config.config_ini_section)
config_data["sqlalchemy.url"] = get_url()
connectable = engine_from_config(
config_data,
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()
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