moved everything to a new module called backend
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backend/migrations/README
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backend/migrations/README
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Generic single-database configuration.
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45
backend/migrations/alembic.ini
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45
backend/migrations/alembic.ini
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# A generic, single database configuration.
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[alembic]
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# template used to generate migration files
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# file_template = %%(rev)s_%%(slug)s
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# set to 'true' to run the environment during
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# the 'revision' command, regardless of autogenerate
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# revision_environment = false
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# Logging configuration
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[loggers]
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keys = root,sqlalchemy,alembic
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[handlers]
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keys = console
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[formatters]
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keys = generic
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[logger_root]
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level = WARN
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handlers = console
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qualname =
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[logger_sqlalchemy]
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level = WARN
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handlers =
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qualname = sqlalchemy.engine
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[logger_alembic]
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level = INFO
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handlers =
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qualname = alembic
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[handler_console]
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class = StreamHandler
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args = (sys.stderr,)
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level = NOTSET
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formatter = generic
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[formatter_generic]
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format = %(levelname)-5.5s [%(name)s] %(message)s
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datefmt = %H:%M:%S
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95
backend/migrations/env.py
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95
backend/migrations/env.py
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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 sqlalchemy import engine_from_config
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from sqlalchemy import pool
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from alembic import context
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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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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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# 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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from flask import current_app
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config.set_main_option('sqlalchemy.url',
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current_app.config.get('SQLALCHEMY_DATABASE_URI'))
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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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# my_important_option = config.get_main_option("my_important_option")
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# ... etc.
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def run_migrations_offline():
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=url, target_metadata=target_metadata, literal_binds=True
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online():
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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# this callback is used to prevent an auto-migration from being generated
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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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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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connectable = engine_from_config(
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config.get_section(config.config_ini_section),
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prefix='sqlalchemy.',
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poolclass=pool.NullPool,
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)
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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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)
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with context.begin_transaction():
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context.run_migrations()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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24
backend/migrations/script.py.mako
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24
backend/migrations/script.py.mako
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"""${message}
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Revision ID: ${up_revision}
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Revises: ${down_revision | comma,n}
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Create Date: ${create_date}
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"""
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from alembic import op
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import sqlalchemy as sa
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${imports if imports else ""}
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# revision identifiers, used by Alembic.
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revision = ${repr(up_revision)}
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down_revision = ${repr(down_revision)}
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branch_labels = ${repr(branch_labels)}
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depends_on = ${repr(depends_on)}
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def upgrade():
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${upgrades if upgrades else "pass"}
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def downgrade():
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${downgrades if downgrades else "pass"}
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136
backend/migrations/versions/b154e49921e0_.py
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136
backend/migrations/versions/b154e49921e0_.py
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"""empty message
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Revision ID: b154e49921e0
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Revises:
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Create Date: 2019-04-11 14:44:25.836132
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"""
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision = 'b154e49921e0'
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down_revision = None
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branch_labels = None
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depends_on = None
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def upgrade():
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('blacklist_tokens',
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sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
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sa.Column('token', sa.String(length=500), nullable=False),
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sa.Column('blacklisted_on', sa.DateTime(), nullable=False),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('token')
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)
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op.create_table('example_data_item',
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sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
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sa.Column('mac', sa.String(length=32), nullable=False),
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sa.Column('uuid', sa.String(length=36), nullable=False),
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sa.Column('some_string_value', sa.String(), nullable=True),
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sa.Column('name', sa.String(length=128), nullable=False),
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sa.Column('description', sa.String(length=4096), nullable=True),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_example_data_item_mac'), 'example_data_item', ['mac'], unique=True)
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op.create_index(op.f('ix_example_data_item_name'), 'example_data_item', ['name'], unique=False)
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op.create_index(op.f('ix_example_data_item_some_string_value'), 'example_data_item', ['some_string_value'], unique=False)
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op.create_index(op.f('ix_example_data_item_uuid'), 'example_data_item', ['uuid'], unique=True)
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op.create_table('group',
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sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
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sa.Column('name', sa.Unicode(length=63), nullable=False),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('name')
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)
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op.create_table('permission',
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sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
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sa.Column('name', sa.Unicode(length=63), nullable=False),
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sa.Column('description', sa.Unicode(length=255), nullable=True),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('name')
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)
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op.create_table('group_permission',
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sa.Column('group_id', sa.Integer(), nullable=False),
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sa.Column('permission_id', sa.Integer(), nullable=False),
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sa.ForeignKeyConstraint(['group_id'], ['group.id'], onupdate='CASCADE', ondelete='CASCADE'),
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sa.ForeignKeyConstraint(['permission_id'], ['permission.id'], onupdate='CASCADE', ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('group_id', 'permission_id')
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)
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op.create_table('user',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('social_id', sa.Unicode(length=63), nullable=True),
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sa.Column('nickname', sa.Unicode(length=63), nullable=True),
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sa.Column('first_name', sa.Unicode(length=63), nullable=True),
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sa.Column('last_name', sa.Unicode(length=63), nullable=True),
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sa.Column('email', sa.String(length=120), nullable=False),
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sa.Column('lang', sa.Unicode(length=32), nullable=True),
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sa.Column('timezone', sa.Unicode(length=63), nullable=True),
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sa.Column('example_data_item_id', sa.Integer(), nullable=True),
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sa.Column('about_me', sa.Unicode(length=255), nullable=True),
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sa.Column('role', sa.Unicode(length=63), nullable=True),
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sa.Column('password', sa.String(length=255), nullable=True),
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sa.Column('registered_on', sa.DateTime(), nullable=False),
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sa.Column('external_user', sa.Boolean(), nullable=True),
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sa.Column('last_seen', sa.DateTime(), nullable=True),
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sa.Column('jwt_exp_delta_seconds', sa.Integer(), nullable=True),
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sa.ForeignKeyConstraint(['example_data_item_id'], ['example_data_item.id'], ),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('social_id')
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)
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op.create_index(op.f('ix_user_email'), 'user', ['email'], unique=True)
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op.create_index(op.f('ix_user_first_name'), 'user', ['first_name'], unique=False)
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op.create_index(op.f('ix_user_last_name'), 'user', ['last_name'], unique=False)
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op.create_index(op.f('ix_user_nickname'), 'user', ['nickname'], unique=True)
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op.create_table('acquaintances',
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sa.Column('me_id', sa.Integer(), nullable=True),
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sa.Column('acquaintance_id', sa.Integer(), nullable=True),
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sa.ForeignKeyConstraint(['acquaintance_id'], ['user.id'], ),
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sa.ForeignKeyConstraint(['me_id'], ['user.id'], )
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)
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op.create_table('followers',
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sa.Column('follower_id', sa.Integer(), nullable=True),
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sa.Column('followed_id', sa.Integer(), nullable=True),
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sa.ForeignKeyConstraint(['followed_id'], ['user.id'], ),
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sa.ForeignKeyConstraint(['follower_id'], ['user.id'], )
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)
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op.create_table('post',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('body', sa.String(length=140), nullable=True),
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sa.Column('timestamp', sa.DateTime(), nullable=True),
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sa.Column('user_id', sa.Integer(), nullable=True),
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sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_table('user_group',
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sa.Column('user_id', sa.Integer(), nullable=False),
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sa.Column('group_id', sa.Integer(), nullable=False),
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sa.ForeignKeyConstraint(['group_id'], ['group.id'], onupdate='CASCADE', ondelete='CASCADE'),
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sa.ForeignKeyConstraint(['user_id'], ['user.id'], onupdate='CASCADE', ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('user_id', 'group_id')
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)
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# ### end Alembic commands ###
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def downgrade():
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_table('user_group')
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op.drop_table('post')
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op.drop_table('followers')
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op.drop_table('acquaintances')
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op.drop_index(op.f('ix_user_nickname'), table_name='user')
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op.drop_index(op.f('ix_user_last_name'), table_name='user')
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op.drop_index(op.f('ix_user_first_name'), table_name='user')
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op.drop_index(op.f('ix_user_email'), table_name='user')
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op.drop_table('user')
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op.drop_table('group_permission')
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op.drop_table('permission')
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op.drop_table('group')
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op.drop_index(op.f('ix_example_data_item_uuid'), table_name='example_data_item')
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op.drop_index(op.f('ix_example_data_item_some_string_value'), table_name='example_data_item')
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op.drop_index(op.f('ix_example_data_item_name'), table_name='example_data_item')
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op.drop_index(op.f('ix_example_data_item_mac'), table_name='example_data_item')
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op.drop_table('example_data_item')
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op.drop_table('blacklist_tokens')
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# ### end Alembic commands ###
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