Loopback discoverAndBuildModels not generating models

Question

I\'m trying to get Loopback to discover and build my first table. I\'ve used the simple example on their page at the bottom here:

http://docs.strongloop.com/display/LB/D

Answer 1

Seems that discovery scripts only shows the output and doesn't create the model files. I found some instructions on loopback docs:

http://docs.strongloop.com/display/public/LB/Discovering+models+from+relational+databases

In section Basic Procedure, the second step:

2. Use fs.writeFile() to save the output in common/models/model-name.json.

So you can try the following approach:

1. Setup your mysql data in yourloopbackproject/server/datasources.json file:

{
  "db": {
    "name": "db",
    "connector": "memory"
  },
  "accountDs": {
    "host": "mysqlServerName",
    "port": 3306,
    "database": "databaseName",
    "username": "username",
    "password": "password!",
    "name": "accountDs",
    "connector": "mysql"
  }
}

2. Create the models folder if doesn't exist: yourloopbackproject/common/models.

3. Create discovery-and-build.js script on yourloopbackproject/server/bin folder:

var path = require('path');
var fs = require('fs');
var app = require(path.resolve(__dirname, '../server'));
var outputPath = path.resolve(__dirname, '../../common/models');

var dataSource = app.dataSources.accountDs;

function schemaCB(err, schema) {
  if(schema) {
    console.log("Auto discovery success: " + schema.name);
    var outputName = outputPath + '/' +schema.name + '.json';
    fs.writeFile(outputName, JSON.stringify(schema, null, 2), function(err) {
      if(err) {
        console.log(err);
      } else {
        console.log("JSON saved to " + outputName);
      }
    });
  }
  if(err) {
    console.error(err);
    return;
  }
  return;
};

dataSource.discoverSchema('tableName',{schema:'schemaName'},schemaCB);

This script is based on: http://www.reddit.com/r/strongloop/comments/2upy76/autodiscoveryjs_recipe/

4. After the script execution you will find a .json file on models folder. Go to step 3 on Basic Procedure section: http://docs.strongloop.com/display/public/LB/Discovering+models+from+relational+databases

5. Follow these steps to expose your model over REST: http://docs.strongloop.com/display/public/LB/Exposing+models+over+REST

I hope this helps!