refactoring the seeddb logic to work with promises all over due to al…

…l the async behavior

config/lib/app.js

@@ -6,15 +6,18 @@
 var config = require('../config'),
   mongoose = require('./mongoose'),
   express = require('./express'),
-  chalk = require('chalk');
+  chalk = require('chalk'),
+  seed = require('./seed');
+
+function seedDB() {
+  if (config.seedDB) {
+    console.log(chalk.bold.red('Warning:  Database seeding is turned on'));
+    seed.start();
+  }
+}
 
 // Initialize Models
-mongoose.loadModels();
-
-//SeedDB
-if (config.seedDB) {
-  require('./seed');
-}
+mongoose.loadModels(seedDB);
 
 module.exports.loadModels = function loadModels() {
   mongoose.loadModels();

config/lib/mongoose.js

@@ -9,11 +9,13 @@ var config = require('../config'),
   mongoose = require('mongoose');
 
 // Load the mongoose models
-module.exports.loadModels = function () {
+module.exports.loadModels = function (callback) {
   // Globbing model files
   config.files.server.models.forEach(function (modelPath) {
     require(path.resolve(modelPath));
   });
+
+  if (callback) callback();
 };
 
 // Initialize Mongoose

config/lib/seed.js

@@ -2,93 +2,146 @@
 
 var mongoose = require('mongoose'),
   chalk = require('chalk'),
-  crypto = require('crypto'),
-  User = mongoose.model('User');
+  crypto = require('crypto');
 
-console.log(chalk.bold.red('Warning:  Database seeding is turned on'));
-
-var seedUser = {
-  username: 'user',
-  password: 'User_Password1!',
-  provider: 'local',
-  email: '[email protected]',
-  firstName: 'User',
-  lastName: 'Local',
-  displayName: 'User Local',
-  roles: ['user']
-};
-
-var seedAdmin = {
-  username: 'admin',
-  password: 'Admin_Password1!',
-  provider: 'local',
-  email: '[email protected]',
-  firstName: 'Admin',
-  lastName: 'Local',
-  displayName: 'Admin Local',
-  roles: ['user', 'admin']
-};
-
-//If production only seed admin if it does not exist
-if (process.env.NODE_ENV === 'production') {
-  //Add Local Admin
-  User.find({username: seedAdmin.username}, function (err, users) {
-    if (users.length === 0) {
-      var user = new User(seedAdmin);
-
-      // generate a random password and save 
-      User.generateRandomPassphrase()
-      .then(saveUser(user))
-      .catch(reportError);
-
-    } else {
-      console.log(seedAdmin.username + ' user exists');
-    }
+function removeUser (user) {
+  return new Promise(function (resolve, reject) {
+    var User = mongoose.model('User');
+    User.find({username: user.username}).remove(function (err) {
+        if (err) {
+          reject(new Error('Database Seeding:\t\t\tFailed to remove local ' + user.username));
+        }
+        resolve();
+    });
   });
-} else {
-
-  //Add Local User
-  User.find({username: seedUser.username}).remove(function () {
-    var user = new User(seedUser);
+}
 
-    // generate a random password and save
-    User.generateRandomPassphrase()
-    .then(saveUser(user))
-    .catch(reportError);
-  });
+function saveUser (user) {
+  return function() {
+    return new Promise(function (resolve, reject) {
+      // Then save the user
+      user.save(function (err, theuser) {
+        if (err) {
+          reject(new Error('Database Seeding:\t\t\tFailed to add local ' + user.username));
+        } else {
+          resolve(theuser);
+        }
+      });
+    });
+  };
+}
 
-  //Add Local Admin
-  User.find({username: seedAdmin.username}).remove(function () {
-    var user = new User(seedAdmin);
+function checkUserNotExists (user) {
+  return new Promise(function (resolve, reject) {
+    var User = mongoose.model('User');
+    User.find({username: user.username}, function (err, users) {
+        if (err) {
+          reject(new Error('Database Seeding:\t\t\tFailed to find local account ' + user.username));
+        }
 
-    // generate a random password and save
-    User.generateRandomPassphrase()
-    .then(saveUser(user))
-    .catch(reportError);
+        if (users.length === 0) {
+          resolve();
+        } else {
+          reject(new Error('Database Seeding:\t\t\tFailed due to local account already exists: ' + user.username));
+        }
+    });
   });
 }
 
+function reportSuccess (password) {
+  return function (user) {
+    return new Promise(function (resolve, reject) {
+      console.log(chalk.bold.red('Database Seeding:\t\t\tLocal ' + user.username + ' added with password set to ' + password));
+      resolve();
+    });
+  };
+}
+
 // save the specified user with the password provided from the resolved promise
-function saveUser(user) {
+function seedTheUser (user) {
   return function (password) {
-    // set the new password
-    user.password = password;
+    return new Promise(function (resolve, reject) {
+
+      var User = mongoose.model('User');
+      // set the new password
+      user.password = password;
 
-    // Then save the user
-    user.save(function (err) {
-      if (err) {
-        console.log('Database Seeding:\t\t\tFailed to add local ' + user.username);        
+      if (user.username === 'admin' && process.env.NODE_ENV === 'production') {
+        checkUserNotExists(user)
+        .then(saveUser(user))
+        .then(reportSuccess(password))
+        .then(function () {
+          resolve();
+        })
+        .catch(reportError);
       } else {
-        console.log(chalk.bold.red('Database Seeding:\t\t\tLocal ' + user.username + ' added with password set to ' + password));
+        removeUser(user)
+        .then(saveUser(user))
+        .then(reportSuccess(password))
+        .then(function () {
+          resolve();
+        })
+        .catch(reportError);
       }
     });
   };
 }
 
 // report the error
-function reportError(err) {
+function reportError (err) {
   console.log();
-  console.log('Database Seeding:\t\t\t Failed to generate random password');
   console.log(err);
   console.log();
 }
+
+module.exports.start = function start() {
+  var User = mongoose.model('User');
+  return new Promise(function (resolve, reject) {
+    var seedUser = {
+      username: 'user',
+      password: 'User_Password1!',
+      provider: 'local',
+      email: '[email protected]',
+      firstName: 'User',
+      lastName: 'Local',
+      displayName: 'User Local',
+      roles: ['user']
+    };
+
+    var seedAdmin = {
+      username: 'admin',
+      password: 'Admin_Password1!',
+      provider: 'local',
+      email: '[email protected]',
+      firstName: 'Admin',
+      lastName: 'Local',
+      displayName: 'Admin Local',
+      roles: ['user', 'admin']
+    };
+
+    var user = null;
+    var adminAccount = new User(seedAdmin);
+    var userAccount = new User(seedUser);
+
+    //If production only seed admin if it does not exist
+    if (process.env.NODE_ENV === 'production') {
+      User.generateRandomPassphrase()
+      .then(seedTheUser(adminAccount))
+      .then(function () {
+          resolve();
+        })
+      .catch(reportError);
+    } else {
+      // Add both Admin and User account
+
+      User.generateRandomPassphrase()
+      .then(seedTheUser(userAccount))
+      .then(User.generateRandomPassphrase)
+      .then(seedTheUser(adminAccount))
+      .then(function () {
+          resolve();
+        })
+      .catch(reportError);
+    }
+  });
+};

modules/users/tests/server/user.server.model.tests.js

@@ -238,7 +238,7 @@ describe('User Model Unit Tests:', function () {
           should.not.exist(err);
         });
       })
-      .catch(function (err) { 
+      .catch(function (err) {
         should.not.exist(err);
       });