Add migrations

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Rien Maertens 2019-02-13 20:31:21 +01:00
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commit ddfa2d02b2
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@ -2,6 +2,7 @@ import json
from functools import wraps from functools import wraps
from flask import Flask, request, Response, abort, render_template from flask import Flask, request, Response, abort, render_template
from flask_sqlalchemy import SQLAlchemy from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
import requests import requests
import config import config
import re import re
@ -14,6 +15,7 @@ app.config['SQLALCHEMY_DATABASE_URI'] = config.DATABASE_URL
# Supress Flask warning # Supress Flask warning
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app) db = SQLAlchemy(app)
migrate = Migrate(app, db)
response_setting = "in_channel" response_setting = "in_channel"

1
migrations/README Normal file
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@ -0,0 +1 @@
Generic single-database configuration.

45
migrations/alembic.ini Normal file
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# 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

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migrations/env.py Normal file
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@ -0,0 +1,90 @@
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.zzzcomputing.com/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()
except Exception as exception:
logger.error(exception)
raise exception
finally:
connection.close()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()

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migrations/script.py.mako Normal file
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@ -0,0 +1,24 @@
"""${message}
Revision ID: ${up_revision}
Revises: ${down_revision | comma,n}
Create Date: ${create_date}
"""
from alembic import op
import sqlalchemy as sa
${imports if imports else ""}
# revision identifiers, used by Alembic.
revision = ${repr(up_revision)}
down_revision = ${repr(down_revision)}
branch_labels = ${repr(branch_labels)}
depends_on = ${repr(depends_on)}
def upgrade():
${upgrades if upgrades else "pass"}
def downgrade():
${downgrades if downgrades else "pass"}

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@ -0,0 +1,46 @@
"""Initial migration
Revision ID: 49d24a3cb696
Revises:
Create Date: 2019-02-13 19:22:05.984105
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '49d24a3cb696'
down_revision = None
branch_labels = None
depends_on = None
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.create_table('quote',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('quoter', sa.String(length=255), nullable=False),
sa.Column('quotee', sa.String(length=255), nullable=True),
sa.Column('channel', sa.String(length=255), nullable=False),
sa.Column('quote', sa.String(length=1023), nullable=False),
sa.Column('created_at', sa.DateTime(), nullable=False),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('quote')
)
op.create_table('user',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('username', sa.String(length=255), nullable=False),
sa.Column('authorized', sa.Boolean(), nullable=True),
sa.Column('admin', sa.Boolean(), nullable=True),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('username')
)
# ### end Alembic commands ###
def downgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.drop_table('user')
op.drop_table('quote')
# ### end Alembic commands ###

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@ -1,13 +1,20 @@
alembic==1.0.7
certifi==2018.8.24 certifi==2018.8.24
chardet==3.0.4 chardet==3.0.4
click==6.7 click==6.7
Flask==1.0.2 Flask==1.0.2
Flask-Migrate==2.3.1
Flask-SQLAlchemy==2.3.2 Flask-SQLAlchemy==2.3.2
idna==2.7 idna==2.7
itsdangerous==0.24 itsdangerous==0.24
Jinja2==2.10 Jinja2==2.10
Mako==1.0.7
MarkupSafe==1.0 MarkupSafe==1.0
PyBug==1.2.1
python-dateutil==2.8.0
python-editor==1.0.4
requests==2.19.1 requests==2.19.1
six==1.12.0
SQLAlchemy==1.2.12 SQLAlchemy==1.2.12
urllib3==1.23 urllib3==1.23
Werkzeug==0.14.1 Werkzeug==0.14.1