2013-08-29 12:30:07 +00:00
|
|
|
Asterisk Database Manager
|
|
|
|
|
=========================
|
|
|
|
|
|
|
|
|
|
Asterisk includes optional database integration for a variety of features.
|
|
|
|
|
The purpose of this effort is to assist in managing the database schema
|
|
|
|
|
for Asterisk database integration.
|
|
|
|
|
|
|
|
|
|
This is implemented as a set of repositories that contain database schema
|
|
|
|
|
migrations, using [Alembic](http://alembic.readthedocs.org). The existing
|
|
|
|
|
repositories include:
|
|
|
|
|
|
2016-09-30 18:29:37 -03:00
|
|
|
* `cdr` - Table used for Asterisk to store CDR records
|
2013-08-29 12:30:07 +00:00
|
|
|
* `config` - Tables used for Asterisk realtime configuration
|
|
|
|
|
* `voicemail` - Tables used for `ODBC_STOARGE` of voicemail messages
|
|
|
|
|
|
|
|
|
|
Alembic uses SQLAlchemy, which has support for
|
|
|
|
|
[many databases](http://docs.sqlalchemy.org/en/rel_0_8/dialects/index.html).
|
|
|
|
|
|
|
|
|
|
IMPORTANT NOTE: This is brand new and the initial migrations are still subject
|
|
|
|
|
to change. Only use this for testing purposes for now.
|
|
|
|
|
|
|
|
|
|
Example Usage
|
|
|
|
|
-------------
|
|
|
|
|
|
|
|
|
|
First, create an ini file that contains database connection details. For help
|
|
|
|
|
with connection string details, see the
|
|
|
|
|
[SQLAlchemy docs](http://docs.sqlalchemy.org/en/rel_0_8/core/engines.html#database-urls).
|
|
|
|
|
|
|
|
|
|
$ cp config.ini.sample config.ini
|
|
|
|
|
... edit config.ini and change sqlalchemy.url ...
|
|
|
|
|
|
|
|
|
|
Next, bring the database up to date with the current schema.
|
|
|
|
|
|
|
|
|
|
$ alembic -c config.ini upgrade head
|
|
|
|
|
|
|
|
|
|
In the future, as additional database migrations are added, you can run
|
|
|
|
|
alembic again to migrate the existing tables to the latest schema.
|
|
|
|
|
|
|
|
|
|
$ alembic -c config.ini upgrade head
|
|
|
|
|
|
|
|
|
|
The migrations support both upgrading and downgrading. You could go all the
|
|
|
|
|
way back to where you started with no tables by downgrading back to the base
|
|
|
|
|
revision.
|
|
|
|
|
|
|
|
|
|
$ alembic -c config.ini downgrade base
|
|
|
|
|
|
|
|
|
|
`base` and `head` are special revisions. You can refer to specific revisions
|
|
|
|
|
to upgrade or downgrade to, as well.
|
|
|
|
|
|
|
|
|
|
$ alembic -c config.ini upgrade 4da0c5f79a9c
|
|
|
|
|
|
|
|
|
|
Offline Mode
|
|
|
|
|
------------
|
|
|
|
|
|
|
|
|
|
If you would like to just generate the SQL statements that would have been
|
|
|
|
|
executed, you can use alembic's offline mode.
|
|
|
|
|
|
|
|
|
|
$ alembic -c config.ini upgrade head --sql
|
|
|
|
|
|
|
|
|
|
Adding Database Migrations
|
|
|
|
|
--------------------------
|
|
|
|
|
|
|
|
|
|
The best way to learn about how to add additional database migrations is to
|
|
|
|
|
refer to the [Alembic documentation](http://alembic.readthedocs.org).
|
