Use TEXT instead of STRING for tokens

Signed-off-by: Pedro Ferreira <pedro.ferreira@cern.ch>

lib/migrations/20180326103000-use-text-in-tokens.js

@@ -0,0 +1,23 @@
+'use strict'
+
+module.exports = {
+  up: function (queryInterface, Sequelize) {
+    return queryInterface.changeColumn('Users', 'accessToken', {
+      type: Sequelize.TEXT
+    }).then(function () {
+      return queryInterface.changeColumn('Users', 'refreshToken', {
+        type: Sequelize.TEXT
+      })
+    })
+  },
+
+  down: function (queryInterface, Sequelize) {
+    return queryInterface.changeColumn('Users', 'accessToken', {
+      type: Sequelize.STRING
+    }).then(function () {
+      return queryInterface.changeColumn('Users', 'refreshToken', {
+        type: Sequelize.STRING
+      })
+    })
+  }
+}