Initial content as generated from scaffold

rattail_tutorial/db/alembic/README

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+Generic single-database configuration.

rattail_tutorial/db/alembic/env.py

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+# -*- coding: utf-8; mode: python; -*-
+"""
+Alembic environment script
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+from alembic import context
+from sqlalchemy.orm import configure_mappers
+
+from rattail.config import make_config
+from rattail.db.util import get_default_engine
+from rattail.db.continuum import configure_versioning
+
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+alembic_config = context.config
+
+# use same config file for Rattail
+rattail_config = make_config(alembic_config.config_file_name, usedb=False, versioning=False)
+
+# configure Continuum..this is trickier than we want but it works..
+configure_versioning(rattail_config, force=True)
+from rattail_tutorial.db import model
+configure_mappers()
+
+# needed for 'autogenerate' support
+target_metadata = model.Base.metadata
+
+
+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.
+
+    """
+    engine = get_default_engine(rattail_config)
+    context.configure(
+        url=engine.url,
+        target_metadata=target_metadata)
+
+    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.
+
+    """
+    engine = get_default_engine(rattail_config)
+    connection = engine.connect()
+    context.configure(
+        connection=connection,
+        target_metadata=target_metadata)
+
+    try:
+        with context.begin_transaction():
+            context.run_migrations()
+    finally:
+        connection.close()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

rattail_tutorial/db/alembic/script.py.mako

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+# -*- coding: utf-8; mode: python; -*-
+# -*- coding: utf-8 -*-
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+from alembic import op
+import sqlalchemy as sa
+import rattail.db.types
+${imports if imports else ""}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

rattail_tutorial/db/model/__init__.py

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+# -*- coding: utf-8; mode: python; -*-
+"""
+Rattail Tutorial data models
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+# bring in all the normal stuff from Rattail
+from rattail.db.model import *
+
+# add Rattail Tutorial models
+from .core import Rattail_tutorialCustomer

rattail_tutorial/db/model/core.py

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+# -*- coding: utf-8; mode: python -*-
+"""
+Rattail core data model extensions
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+import sqlalchemy as sa
+from sqlalchemy import orm
+
+from rattail.db import model
+from rattail.db.core import uuid_column
+
+
+class Rattail_tutorialCustomer(model.Base):
+    """
+    Rattail Tutorial extensions to core Customer model
+    """
+    __tablename__ = 'rattail_tutorial_customer'
+    __table_args__ = (
+        sa.ForeignKeyConstraint(['uuid'], ['customer.uuid'], name='rattail_tutorial_customer_fk_customer'),
+    )
+
+    uuid = uuid_column(default=None)
+
+    customer = orm.relationship(
+        model.Customer,
+        doc="""
+        Customer to which this extension record pertains.
+        """,
+        backref=orm.backref(
+            '_rattail_tutorial',
+            uselist=False,
+            cascade='all, delete-orphan',
+            doc="""
+            Rattail Tutorial-specific extension record for the customer.
+            """),
+    )
+
+    mail_list_synced = sa.Column(sa.Boolean(), nullable=False, default=False, doc="""
+    Flag indicating whether the customer's email address has been synced to the
+    general mailing list.
+    """)