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authorCédric Bonhomme <cedric@cedricbonhomme.org>2015-02-18 21:39:28 +0100
committerCédric Bonhomme <cedric@cedricbonhomme.org>2015-02-18 21:39:28 +0100
commit045bb9edc5f8b4a1c130811cc39f19417904beed (patch)
tree85132a63b0ae8c48d9743d64dca0c87858077abe /alembic
parentUpdated README. (diff)
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Alembic is magic!
Diffstat (limited to 'alembic')
-rw-r--r--alembic/README1
-rw-r--r--alembic/alembic.ini68
-rw-r--r--alembic/env.py72
-rw-r--r--alembic/script.py.mako24
-rw-r--r--alembic/versions/48f561c0ce6_add_column_entry_id.py24
5 files changed, 189 insertions, 0 deletions
diff --git a/alembic/README b/alembic/README
new file mode 100644
index 00000000..98e4f9c4
--- /dev/null
+++ b/alembic/README
@@ -0,0 +1 @@
+Generic single-database configuration. \ No newline at end of file
diff --git a/alembic/alembic.ini b/alembic/alembic.ini
new file mode 100644
index 00000000..b0341552
--- /dev/null
+++ b/alembic/alembic.ini
@@ -0,0 +1,68 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = .
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# max length of characters to apply to the
+# "slug" field
+#truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; this defaults
+# to alembic/versions. When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat alembic/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+# 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/alembic/env.py b/alembic/env.py
new file mode 100644
index 00000000..fccd445a
--- /dev/null
+++ b/alembic/env.py
@@ -0,0 +1,72 @@
+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
+target_metadata = None
+
+# 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, 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 = 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/alembic/script.py.mako b/alembic/script.py.mako
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+++ b/alembic/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+def upgrade():
+ ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+ ${downgrades if downgrades else "pass"}
diff --git a/alembic/versions/48f561c0ce6_add_column_entry_id.py b/alembic/versions/48f561c0ce6_add_column_entry_id.py
new file mode 100644
index 00000000..3f52a7a9
--- /dev/null
+++ b/alembic/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')
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