Seeding Sails.js Models

ActivityType.js

/**
* ActivityType.js
*
*
*
*	****** NOTE - Seed Data / Default DB Data *******
* 	On server/app lift, there are default activity types loaded into the database.
* 		1. model's are assigned a key `seedData` of the data to be inserted to dB
* 				and this data is available in the global `Model`.seedData
* 		2. config/models.js has custom methods that are attached to all models on server
* 				lift, `Model`.seed(callback) which look for `Model`.seedData
* 		3. Finally, config/bootstrap.js will invoke `Model`.seed(callback)
*
*
* 		* This model, ActivityType *
* 			Default data uses `name` as the index on the frontend since we cannot
* 			predict the id that would be assigned on different DB migration actions
* 			in the future. Organization specific activity types are searched by
* 			attribute `organization` and indexed by organization & name
*
*/

var defaultActivityTypes = [{name : 'running'}, {name : 'hiking'}];

module.exports = {

  // this is the default activityTypes that get added to the DB in config/bootstrap.js
  seedData: defaultActivityTypes,

  attributes: {
    
  }
};

bootstrap.js

/**
 * Bootstrap
 * (sails.config.bootstrap)
 *
 * An asynchronous bootstrap function that runs before your Sails app gets lifted.
 * This gives you an opportunity to set up your data model, run jobs, or perform some special logic.
 *
 * For more information on bootstrapping your app, check out:
 * http://sailsjs.org/#!/documentation/reference/sails.config/sails.config.bootstrap.html
 */

module.exports.bootstrap = function(cb) {

  /**
   * Seed ActivityType defaults into DB
   *
   * We invoke this last in bootstrap.js file because it's async and we hand it
   * the callback to be invoked when complete.
   *
   */
   // async is global
   async.series([
 		ActivityType.seed
 		],cb);

  // It's very important to trigger this callback method when you are finished
  // with the bootstrap!  (otherwise your server will never lift, since it's waiting on the bootstrap)
  // cb();
};

models.js

/**
 * Default model configuration
 * (sails.config.models)
 *
 * Unless you override them, the following properties will be included
 * in each of your models.
 *
 * For more info on Sails models, see:
 * http://sailsjs.org/#!/documentation/concepts/ORM
 */

module.exports.models = {

  /***************************************************************************
  *                                                                          *
  * Your app's default connection. i.e. the name of one of your app's        *
  * connections (see `config/connections.js`)                                *
  *                                                                          *
  ***************************************************************************/
  connection: 'mongoServer',

  /***************************************************************************
  *                                                                          *
  * How and whether Sails will attempt to automatically rebuild the          *
  * tables/collections/etc. in your schema.                                  *
  *                                                                          *
  * See http://sailsjs.org/#!/documentation/concepts/ORM/model-settings.html  *
  *                                                                          *
  ***************************************************************************/
  migrate: 'safe',


  /**
   * This method adds records to the database
   *
   * To use add a variable 'seedData' in your model and call the
   * method in the bootstrap.js file
   */
  seed: function (callback) {
    var self = this;
    var modelName = self.adapter.identity.charAt(0).toUpperCase() + self.adapter.identity.slice(1);
    if (!self.seedData) {
      sails.log.debug('No data avaliable to seed ' + modelName);
      callback();
      return;
    }
    self.count().exec(function (err, count) {
      if (!err && count === 0) {
        sails.log.debug('Seeding ' + modelName + '...');
        if (self.seedData instanceof Array) {
          self.seedArray(callback);
        }else{
          self.seedObject(callback);
        }
      } else {
        sails.log.debug(modelName + ' had models, so no seed needed');
        callback();
      }
    });
  },
  seedArray: function (callback) {
    var self = this;
    var modelName = self.adapter.identity.charAt(0).toUpperCase() + self.adapter.identity.slice(1);
    self.findOrCreate(self.seedData).exec(function (err, results) {
      if (err) {
        sails.log.debug(err);
        callback();
      } else {
        sails.log.debug(modelName + ' seed planted');
        callback();
      }
    });
  },
  seedObject: function (callback) {
    var self = this;
    var modelName = self.adapter.identity.charAt(0).toUpperCase() + self.adapter.identity.slice(1);
    self.findOrCreate(self.seedData).exec(function (err, results) {
      if (err) {
        sails.log.debug(err);
        callback();
      } else {
        sails.log.debug(modelName + ' seed planted');
        callback();
      }
    });

  }
};