From ab44569e558a2835022312c7fc20accc4f00215c Mon Sep 17 00:00:00 2001
From: Cédric Bonhomme <cedric@cedricbonhomme.org>
Date: Thu, 19 Feb 2015 07:50:09 +0100
Subject: Configuration file for Alembic on Heroku.

---
 migrations/README                                  |  1 +
 migrations/alembic.ini                             | 45 +++++++++++++
 migrations/env.py                                  | 73 ++++++++++++++++++++++
 migrations/script.py.mako                          | 22 +++++++
 .../versions/48f561c0ce6_add_column_entry_id.py    | 24 +++++++
 5 files changed, 165 insertions(+)
 create mode 100755 migrations/README
 create mode 100644 migrations/alembic.ini
 create mode 100644 migrations/env.py
 create mode 100755 migrations/script.py.mako
 create mode 100644 migrations/versions/48f561c0ce6_add_column_entry_id.py

(limited to 'migrations')

diff --git a/migrations/README b/migrations/README
new file mode 100755
index 00000000..98e4f9c4
--- /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 00000000..f8ed4801
--- /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 100644
index 00000000..70961ce2
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,73 @@
+from __future__ import with_statement
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+from logging.config import fileConfig
+
+# 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)
+
+# 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.
+
+    """
+    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
+                )
+
+    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 00000000..95702017
--- /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/48f561c0ce6_add_column_entry_id.py b/migrations/versions/48f561c0ce6_add_column_entry_id.py
new file mode 100644
index 00000000..3f52a7a9
--- /dev/null
+++ b/migrations/versions/48f561c0ce6_add_column_entry_id.py
@@ -0,0 +1,24 @@
+"""add column entry_id
+
+Revision ID: 48f561c0ce6
+Revises: 
+Create Date: 2015-02-18 21:17:19.346998
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '48f561c0ce6'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column('article', sa.Column('entry_id', sa.String(), nullable=True))
+
+
+def downgrade():
+    op.drop_column('article', 'entry_id')
-- 
cgit