From afe27d2da41ab2b729aecd4516746bc43ba1e72a Mon Sep 17 00:00:00 2001
From: Awais Ansari <79941147+awais-ansari@users.noreply.github.com>
Date: Thu, 11 Aug 2022 12:35:37 +0500
Subject: [PATCH] fix: pinned post sorting issue (#243)

---
 src/discussions/posts/PostsList.jsx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/discussions/posts/PostsList.jsx b/src/discussions/posts/PostsList.jsx
index 4c9265d0..056db78f 100644
--- a/src/discussions/posts/PostsList.jsx
+++ b/src/discussions/posts/PostsList.jsx
@@ -1,6 +1,7 @@
 import React, { useContext, useEffect } from 'react';
 import PropTypes from 'prop-types';
 
+import uniqBy from 'lodash/uniqBy';
 import { useDispatch, useSelector } from 'react-redux';
 
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
@@ -54,7 +55,9 @@ function PostsList({ posts, topics, intl }) {
   const checkIsSelected = (id) => window.location.pathname.includes(id);
 
   let lastPinnedIdx = null;
-  const postInstances = posts && posts.map((post, idx) => {
+  const sortedPosts = uniqBy(posts, 'id').sort((a, b) => b.pinned - a.pinned);
+
+  const postInstances = sortedPosts.map((post, idx) => {
     if (post.pinned && lastPinnedIdx !== false) {
       lastPinnedIdx = idx;
     } else if (lastPinnedIdx != null && lastPinnedIdx !== false) {