diff options
Diffstat (limited to 'migrations')
| -rwxr-xr-x | migrations/README | 1 | ||||
| -rw-r--r-- | migrations/alembic.ini | 45 | ||||
| -rwxr-xr-x | migrations/env.py | 87 | ||||
| -rwxr-xr-x | migrations/script.py.mako | 22 | ||||
| -rw-r--r-- | migrations/versions/0cd36ecdd937_.py | 42 |
5 files changed, 197 insertions, 0 deletions
diff --git a/migrations/README b/migrations/README new file mode 100755 index 0000000..98e4f9c --- /dev/null +++ b/migrations/README @@ -0,0 +1 @@ +Generic single-database configuration.
\ No newline at end of file diff --git a/migrations/alembic.ini b/migrations/alembic.ini new file mode 100644 index 0000000..f8ed480 --- /dev/null +++ b/migrations/alembic.ini @@ -0,0 +1,45 @@ +# A generic, single database configuration. + +[alembic] +# template used to generate migration files +# file_template = %%(rev)s_%%(slug)s + +# set to 'true' to run the environment during +# the 'revision' command, regardless of autogenerate +# revision_environment = false + + +# Logging configuration +[loggers] +keys = root,sqlalchemy,alembic + +[handlers] +keys = console + +[formatters] +keys = generic + +[logger_root] +level = WARN +handlers = console +qualname = + +[logger_sqlalchemy] +level = WARN +handlers = +qualname = sqlalchemy.engine + +[logger_alembic] +level = INFO +handlers = +qualname = alembic + +[handler_console] +class = StreamHandler +args = (sys.stderr,) +level = NOTSET +formatter = generic + +[formatter_generic] +format = %(levelname)-5.5s [%(name)s] %(message)s +datefmt = %H:%M:%S diff --git a/migrations/env.py b/migrations/env.py new file mode 100755 index 0000000..4593816 --- /dev/null +++ b/migrations/env.py @@ -0,0 +1,87 @@ +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: http://alembic.readthedocs.org/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() diff --git a/migrations/script.py.mako b/migrations/script.py.mako new file mode 100755 index 0000000..9570201 --- /dev/null +++ b/migrations/script.py.mako @@ -0,0 +1,22 @@ +"""${message} + +Revision ID: ${up_revision} +Revises: ${down_revision} +Create Date: ${create_date} + +""" + +# revision identifiers, used by Alembic. +revision = ${repr(up_revision)} +down_revision = ${repr(down_revision)} + +from alembic import op +import sqlalchemy as sa +${imports if imports else ""} + +def upgrade(): + ${upgrades if upgrades else "pass"} + + +def downgrade(): + ${downgrades if downgrades else "pass"} diff --git a/migrations/versions/0cd36ecdd937_.py b/migrations/versions/0cd36ecdd937_.py new file mode 100644 index 0000000..349cab9 --- /dev/null +++ b/migrations/versions/0cd36ecdd937_.py @@ -0,0 +1,42 @@ +"""empty message + +Revision ID: 0cd36ecdd937 +Revises: None +Create Date: 2016-11-01 05:25:42.691768 + +""" + +# revision identifiers, used by Alembic. +revision = '0cd36ecdd937' +down_revision = None + +from alembic import op +import sqlalchemy as sa + + +def upgrade(): + ### commands auto generated by Alembic - please adjust! ### + op.create_table('URL', + sa.Column('id', sa.Integer(), nullable=False), + sa.Column('url', sa.UnicodeText(), nullable=True), + sa.PrimaryKeyConstraint('id'), + sa.UniqueConstraint('url') + ) + op.create_table('file', + sa.Column('id', sa.Integer(), nullable=False), + sa.Column('sha256', sa.String(), nullable=True), + sa.Column('ext', sa.UnicodeText(), nullable=True), + sa.Column('mime', sa.UnicodeText(), nullable=True), + sa.Column('addr', sa.UnicodeText(), nullable=True), + sa.Column('removed', sa.Boolean(), nullable=True), + sa.PrimaryKeyConstraint('id'), + sa.UniqueConstraint('sha256') + ) + ### end Alembic commands ### + + +def downgrade(): + ### commands auto generated by Alembic - please adjust! ### + op.drop_table('file') + op.drop_table('URL') + ### end Alembic commands ### |