add meta/models controller to get public models paths

website/src/controllers/api-v3/email.js

@@ -8,7 +8,7 @@ import {
 let api = {};
 
 /**
- * @api {post} /unsubscribe Unsubscribe an email or user from email notifications
+ * @api {post} /email/unsubscribe Unsubscribe an email or user from email notifications
  * @apiVersion 3.0.0
  * @apiName UnsubscribeEmail
  * @apiGroup Unsubscribe

website/src/controllers/api-v3/meta/modelsPaths.js

@@ -0,0 +1,39 @@
+import mongoose from 'mongoose';
+
+let api = {};
+
+let tasksModels = ['habit', 'daily', 'todo', 'reward'];
+let allModels = ['user', 'tag', 'challenge', 'group'].concat(tasksModels);
+
+/**
+ * @api {get} /meta/models/:model/paths Get all paths for the specified model. Doesn't require authentication
+ * @apiVersion 3.0.0
+ * @apiName GetUserModelPaths
+ * @apiGroup Meta
+ *
+ * @apiParam {string="user","group","challenge","tag","habit","daily","todo","reward"} model The name of the model
+ *
+ * @apiSuccess {object} paths A key-value object made of fieldPath: fieldType (like {'field.nested': Boolean})
+ */
+api.getModelPaths = {
+  method: 'GET',
+  url: '/meta/models/:model/paths',
+  async handler (req, res) {
+    req.checkParams('model', res.t('modelNotFound')).notEmpty().isIn(allModels);
+
+    let validationErrors = req.validationErrors();
+    if (validationErrors) throw validationErrors;
+
+    let model = req.params.model;
+    // tasks models are lowercase, the others have the first letter uppercase (User, Group)
+    if (tasksModels.indexOf(model) === -1) {
+      model = model.charAt(0).toUpperCase() + model.slice(1);
+    }
+
+    model = mongoose.model(model);
+
+    res.respond(200, model.getModelPaths());
+  },
+};
+
+export default api;