add model localization middleware to integrate mongoose model binding and localization

src/index.js

@@ -21,6 +21,7 @@ import authValidate from './auth/validate';
 import authRequestHandlers from './auth/requestHandlers';
 import passwordResetConfig from './auth/passwordResets/passwordReset.config';
 import validateConfig from './utilities/validateConfig';
+import setModelLocaleMiddleware from './mongoose/setModelLocale.middleware';
 
 class Payload {
 
@@ -138,7 +139,10 @@ class Payload {
       }
 
       this.models[config.labels.singular] = model;
-      options.router.all(`/${config.slug}*`, bindModelMiddleware(model));
+      options.router.all(`/${config.slug}*`,
+        bindModelMiddleware(model),
+        setModelLocaleMiddleware()
+      );
 
       options.router.route(`/${config.slug}`)
         .get(config.policies.read, query)

src/mongoose/requestHandlers/create.js

@@ -1,17 +1,16 @@
-import httpStatus from 'http-status';
-
-const create = (req, res) => {
-  req.model.setDefaultLocale(req.locale); // TODO - move to middleware
-  req.model.create(req.body, (err, result) => {
-    if (err)
-      return res.status(httpStatus.INTERNAL_SERVER_ERROR).json({ error: err });
-
-    return res.status(httpStatus.CREATED)
-      .json({
-        message: 'success',
-        result: result.toJSON({ virtuals: true })
-      });
-  });
-};
-
-export default create;
+import httpStatus from 'http-status';
+
+const create = (req, res) => {
+  req.model.create(req.body, (err, result) => {
+    if (err)
+      return res.status(httpStatus.INTERNAL_SERVER_ERROR).json({ error: err });
+
+    return res.status(httpStatus.CREATED)
+      .json({
+        message: 'success',
+        result: result.toJSON({ virtuals: true })
+      });
+  });
+};
+
+export default create;

src/mongoose/requestHandlers/update.js

@@ -1,7 +1,6 @@
 import httpStatus from 'http-status';
 
 const update = (req, res) => {
-  req.model.setDefaultLocale(req.locale); // TODO - move to middleware
   req.model.findOne({ _id: req.params.id }, '', {}, (err, doc) => {
     if (!doc)
       return res.status(httpStatus.NOT_FOUND).send('Not Found');

src/mongoose/setModelLocale.middleware.js

@@ -0,0 +1,9 @@
+const setModelLocaleMiddleware = () => {
+  return (req, res, next) => {
+    if (req.locale && req.model.setDefaultLocale)
+      req.model.setDefaultLocale(req.locale);
+    next();
+  };
+};
+
+export default setModelLocaleMiddleware;