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@ -3,9 +3,8 @@ from __future__ import with_statement |
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import logging |
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from logging.config import fileConfig |
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from flask import current_app |
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from alembic import context |
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from flask import current_app |
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# this is the Alembic Config object, which provides |
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# access to the values within the .ini file in use. |
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@ -14,17 +13,19 @@ config = context.config |
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# Interpret the config file for Python logging. |
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# This line sets up loggers basically. |
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fileConfig(config.config_file_name) |
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logger = logging.getLogger('alembic.env') |
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logger = logging.getLogger("alembic.env") |
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# add your model's MetaData object here |
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# for 'autogenerate' support |
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# from myapp import mymodel |
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# target_metadata = mymodel.Base.metadata |
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config.set_main_option( |
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'sqlalchemy.url', |
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str(current_app.extensions['migrate'].db.get_engine().url).replace( |
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'%', '%%')) |
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target_metadata = current_app.extensions['migrate'].db.metadata |
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"sqlalchemy.url", |
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str(current_app.extensions["migrate"].db.get_engine().url).replace( |
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"%", "%%" |
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), |
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) |
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target_metadata = current_app.extensions["migrate"].db.metadata |
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# other values from the config, defined by the needs of env.py, |
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# can be acquired: |
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@ -65,20 +66,20 @@ def run_migrations_online(): |
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# when there are no changes to the schema |
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# reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html |
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def process_revision_directives(context, revision, directives): |
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if getattr(config.cmd_opts, 'autogenerate', False): |
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if getattr(config.cmd_opts, "autogenerate", False): |
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script = directives[0] |
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if script.upgrade_ops.is_empty(): |
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directives[:] = [] |
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logger.info('No changes in schema detected.') |
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logger.info("No changes in schema detected.") |
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connectable = current_app.extensions['migrate'].db.get_engine() |
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connectable = current_app.extensions["migrate"].db.get_engine() |
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with connectable.connect() as connection: |
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context.configure( |
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connection=connection, |
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target_metadata=target_metadata, |
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process_revision_directives=process_revision_directives, |
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**current_app.extensions['migrate'].configure_args |
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**current_app.extensions["migrate"].configure_args, |
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) |
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with context.begin_transaction(): |
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