Server: fix migration scripts

server/initializers/migrations/0010-email-user.js

@@ -0,0 +1,41 @@
+'use strict'
+
+const waterfall = require('async/waterfall')
+
+// utils = { transaction, queryInterface, sequelize, Sequelize }
+exports.up = function (utils, finalCallback) {
+  const q = utils.queryInterface
+  const Sequelize = utils.Sequelize
+
+  const data = {
+    type: Sequelize.STRING(400),
+    allowNull: false,
+    defaultValue: ''
+  }
+
+  waterfall([
+
+    function addEmailColumn (callback) {
+      q.addColumn('Users', 'email', data, { transaction: utils.transaction }).asCallback(function (err) {
+        return callback(err)
+      })
+    },
+
+    function updateWithFakeEmails (callback) {
+      const query = 'UPDATE "Users" SET "email" = CONCAT("username", \'@example.com\')'
+      utils.sequelize.query(query, { transaction: utils.transaction }).asCallback(function (err) {
+        return callback(err)
+      })
+    },
+
+    function nullOnDefault (callback) {
+      data.defaultValue = null
+
+      q.changeColumn('Users', 'email', data, { transaction: utils.transaction }).asCallback(callback)
+    }
+  ], finalCallback)
+}
+
+exports.down = function (options, callback) {
+  throw new Error('Not implemented.')
+}