Added support for populate data

src/models/plugins/paginate.plugin.js

@@ -13,6 +13,7 @@ const paginate = (schema) => {
    * Query for documents with pagination
    * @param {Object} [filter] - Mongo filter
    * @param {Object} [options] - Query options
+   * @param {string} [options.populate] - populate data fields. Hierarchy of fields should be separated by (.). Multiple sorting criteria should be separated by commas (,)
    * @param {string} [options.sortBy] - Sorting criteria using the format: sortField:(desc|asc). Multiple sorting criteria should be separated by commas (,)
    * @param {number} [options.limit] - Maximum number of results per page (default = 10)
    * @param {number} [options.page] - Current page (default = 1)
@@ -36,7 +37,20 @@ const paginate = (schema) => {
     const skip = (page - 1) * limit;
 
     const countPromise = this.countDocuments(filter).exec();
-    const docsPromise = this.find(filter).sort(sort).skip(skip).limit(limit).exec();
+    let docsPromise = this.find(filter).sort(sort).skip(skip).limit(limit);
+
+    if (options.populate) {
+      options.populate.split(',').forEach((populateOption) => {
+        docsPromise = docsPromise.populate(
+          populateOption
+            .split('.')
+            .reverse()
+            .reduce((a, b) => ({ path: b, populate: a }))
+        );
+      });
+    }
+
+    docsPromise = docsPromise.exec();
 
     return Promise.all([countPromise, docsPromise]).then((values) => {
       const [totalResults, results] = values;