Give permissionLevel columns defaultValue of Private

If not included from UI or otherwise excluded, make it private

server/sequelize/models/Review.js

@@ -18,6 +18,7 @@ module.exports = sequelize => sequelize.define('Review', {
   permissionLevel: {
     type: Sequelize.INTEGER,
     allowNull: false,
+    defaultValue: 0,
     references: {
       model: sequelize.models.PermissionLevel,
       key: 'id',

server/sequelize/models/Shelf.js

@@ -25,6 +25,7 @@ module.exports = sequelize => sequelize.define('Shelf', {
   permissionLevel: {
     type: Sequelize.NUMBER,
     allowNull: false,
+    defaultValue: 0,
     references: {
       model: sequelize.models.PermissionLevel,
       key: 'id',

server/sequelize/models/Status.js

@@ -18,6 +18,7 @@ module.exports = sequelize => sequelize.define('Status', {
   permissionLevel: {
     type: Sequelize.INTEGER,
     allowNull: false,
+    defaultValue: 0,
     references: {
       model: sequelize.models.PermissionLevel,
       key: 'id',

server/sequelize/models/User.js

@@ -34,6 +34,7 @@ module.exports = sequelize => sequelize.define('User', {
   permissionLevel: {
     type: Sequelize.INTEGER,
     allowNull: false,
+    defaultValue: 0,
     references: {
       model: sequelize.models.PermissionLevel,
       key: 'id',