Server: add user list sort/pagination

server/models/utils.js

@@ -0,0 +1,30 @@
+'use strict'
+
+const parallel = require('async/parallel')
+
+const utils = {
+  listForApiWithCount: listForApiWithCount
+}
+
+function listForApiWithCount (query, start, count, sort, callback) {
+  const self = this
+
+  parallel([
+    function (asyncCallback) {
+      self.find(query).skip(start).limit(count).sort(sort).exec(asyncCallback)
+    },
+    function (asyncCallback) {
+      self.count(query, asyncCallback)
+    }
+  ], function (err, results) {
+    if (err) return callback(err)
+
+    const data = results[0]
+    const total = results[1]
+    return callback(null, data, total)
+  })
+}
+
+// ---------------------------------------------------------------------------
+
+module.exports = utils