mongoose-migrate

    0.2.4 • Public • Published

    Mongoose migrate

    Fork of visionmedia/node-migrate. Keeps track of the migrations in a mongodb collection instead of .migrate file.

    Installation

    $ npm install mongoose-migrate -g

    or include it in package.json

    Usage

    mongoose-migrate needs an env variable NODE_MONGOOSE_MIGRATIONS_CONFIG which points to the path of the config file. The config file should contain

    // Path : ./config/migrations.js
    module.exports = {
      development: {
        schema: { 'migration': {} },
        modelName: 'Migration',
        db: process.env.MONGOHQ_URL || 'mongodb://localhost/app_development'
      },
      test: { ... },
      production: { ... }
    }

    and then run the migrate command

    $ NODE_MONGOOSE_MIGRATIONS_CONFIG=./config/migrations.js mongoose-migrate

    I created this fork because everytime I used to deploy to heroku, it used to deploy in a different folder and the .migrate file was not available anymore.


    node migrate

    Abstract migration framework for node

    Installation

    $ npm install migrate
    

    Usage

    Usage: migrate [options] [command]
    
    Options:
    
       -c, --chdir <path>   change the working directory
    
    Commands:
    
       down             migrate down
       up               migrate up (the default command)
       create [title]   create a new migration file with optional [title]
    
    

    Creating Migrations

    To create a migration, execute migrate create with an optional title. node-migrate will create a node module within ./migrations/ which contains the following two exports:

    exports.up = function(next){
      next();
    };
    
    exports.down = function(next){
      next();
    };
    

    All you have to do is populate these, invoking next() when complete, and you are ready to migrate!

    For example:

    $ migrate create add-pets
    $ migrate create add-owners
    

    The first call creates ./migrations/000-add-pets.js, which we can populate:

      var db = require('./db');
    
      exports.up = function(next){
        db.rpush('pets', 'tobi');
        db.rpush('pets', 'loki');
        db.rpush('pets', 'jane', next);
      };
    
      exports.down = function(next){
        db.rpop('pets');
        db.rpop('pets', next);
      };
    

    The second creates ./migrations/001-add-owners.js, which we can populate:

      var db = require('./db');
    
      exports.up = function(next){
        db.rpush('owners', 'taylor');
        db.rpush('owners', 'tj', next);
      };
    
      exports.down = function(next){
        db.rpop('owners');
        db.rpop('owners', next);
      };
    

    Running Migrations

    When first running the migrations, all will be executed in sequence.

      $ migrate
      up : migrations/000-add-pets.js
      up : migrations/001-add-jane.js
      up : migrations/002-add-owners.js
      up : migrations/003-coolest-pet.js
      migration : complete
    

    Subsequent attempts will simply output "complete", as they have already been executed in this machine. node-migrate knows this because it stores the current state in ./migrations/.migrate which is typically a file that SCMs like GIT should ignore.

      $ migrate
      migration : complete
    

    If we were to create another migration using migrate create, and then execute migrations again, we would execute only those not previously executed:

      $ migrate
      up : migrates/004-coolest-owner.js
    

    You can also run migrations incrementally by specifying a migration.

      $ migrate up 002-coolest-pet.js
      up : migrations/000-add-pets.js
      up : migrations/001-add-jane.js
      up : migrations/002-add-owners.js
      migration : complete
    

    This will run up-migrations upto (and including) 002-coolest-pet.js. Similarly you can run down-migrations upto (and including) a specific migration, instead of migrating all the way down.

      $ migrate down 001-add-jane.js
      down : migrations/002-add-owners.js
      down : migrations/001-add-jane.js
      migration : complete
    

    License

    (The MIT License)

    Copyright (c) 2011 TJ Holowaychuk <tj@vision-media.ca>

    Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    Install

    npm i mongoose-migrate

    DownloadsWeekly Downloads

    25

    Version

    0.2.4

    License

    none

    Last publish

    Collaborators

    • madhums