sails-migrations
v2.1.0
Published
The missing, migrations, arm of the octopus
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THIS PROJECT IS LOOKING FOR A MAINTAINER
unfortunatly i do not have the time to support this project. so, please help :)
sails-migrations
sails-migrations provides an easy way to manage database migrations with sails, based on the amazing https://github.com/tgriesser/knex lib. This means you can have fine-grained control over your schema/data transformations between versions.
Supported sails versions:
sails-migrations supports sails versions 0.9X up to 0.11.2, for both MySQL & PostgreSQL.
Please let us know if you encounter any problem working with sails-migrations by opening an issue.
As of version 2.0 we've moved to using knex schema builder.
NOTE
sails-migrations up until (including) 0.1 supported Sails versions 0.9 & 0.10RC8
When upgrading to 2.0, notice that you'll need to change your old migrations code to work with knex instead of waterline.
What db migrations are and how/when to use them:
DB migrations allows you to change your database schema/data in a controlled way by making small atomic/ordered data to your DB, for a better answer, read this
Installing:
First run
npm install -g sails-migrations
this will install the global CLI sails-migrations.
Next you'll need to install sails-migrations within the project you would like to work on:
npm install --save sails-migrations
Usage
Fairly simple, there are a few basic commands
db:drop
- Just as the name suggests, reads your sails config, and DROPS the db. use with care.db:create
- Same but different, creates the db you specified in your sails config.generate <name>
- Generate a new blank migrations file, after you run this command, you need to open the new file, which by default is saved to\db\migrations\
, after you run this command, you should open this file, and put your migration information. for the migration syntex, please refer to the Knex documentationmigrate
- Runs all the not-yet-runned migrations from the last run of migrate, all of those migrations are saved as abatch
.rollback
- Runs the revert function on each migration in the lastbatch
.status
- Prints a nice table of all the committed/uncommitted migrations.
Example apps
You can checkout some example Sails apps.
Commands
For a list of commands, simply run sails-migrations from your command prompt.
Working with migrations
For a more detailed documentation, please refer to http://knexjs.org/ A migration constitutes of two parts:
up
: determines what should be performed when you want to forward your database to this version.down
: should be the exact reverse of the up method, so, for example, if on the up phase you created a table, the down phase should delete that table.