diff options
Diffstat (limited to 'budget/migrations/env.py')
| -rwxr-xr-x | budget/migrations/env.py | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/budget/migrations/env.py b/budget/migrations/env.py deleted file mode 100755 index e2f9a28..0000000 --- a/budget/migrations/env.py +++ /dev/null @@ -1,85 +0,0 @@ -from __future__ import with_statement -from alembic import context -from sqlalchemy import engine_from_config, pool -from logging.config import fileConfig -import logging - -# This is the Alembic Config object, which provides access to the values within -# the .ini file in use. -config = context.config - -# Interpret the config file for Python logging. This line sets up loggers -# basically. -fileConfig(config.config_file_name) -logger = logging.getLogger('alembic.env') - -# Add your model's MetaData object here for 'autogenerate' support from myapp -# import mymodel target_metadata = mymodel.Base.metadata. -from flask import current_app -config.set_main_option('sqlalchemy.url', - current_app.config.get('SQLALCHEMY_DATABASE_URI')) -target_metadata = current_app.extensions['migrate'].db.metadata - -# Other values from the config, defined by the needs of env.py, -# can be acquired: -# my_important_option = config.get_main_option("my_important_option") -# ... etc. - - -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 = config.get_main_option("sqlalchemy.url") - context.configure(url=url) - - 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. - - """ - - # This callback is used to prevent an auto-migration from being generated - # when there are no changes to the schema. - # reference: https://alembic.readthedocs.io/en/latest/cookbook.html - def process_revision_directives(context, revision, directives): - if getattr(config.cmd_opts, 'autogenerate', False): - script = directives[0] - if script.upgrade_ops.is_empty(): - directives[:] = [] - logger.info('No changes in schema detected.') - - engine = engine_from_config(config.get_section(config.config_ini_section), - prefix='sqlalchemy.', - poolclass=pool.NullPool) - - connection = engine.connect() - context.configure(connection=connection, - target_metadata=target_metadata, - process_revision_directives=process_revision_directives, - **current_app.extensions['migrate'].configure_args) - - try: - with context.begin_transaction(): - context.run_migrations() - finally: - connection.close() - -if context.is_offline_mode(): - run_migrations_offline() -else: - run_migrations_online() |
