From 459a6aac70349be010f4fb3656185c60796ae8ea Mon Sep 17 00:00:00 2001
From: Chris Gmyr <cmgmyr@gmail.com>
Date: Fri, 11 Nov 2016 17:02:44 -0500
Subject: [PATCH] add distinct select to fix Postgres error

---
 src/Cmgmyr/Messenger/Models/Thread.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Cmgmyr/Messenger/Models/Thread.php b/src/Cmgmyr/Messenger/Models/Thread.php
index 73a6bda..6f18d96 100644
--- a/src/Cmgmyr/Messenger/Models/Thread.php
+++ b/src/Cmgmyr/Messenger/Models/Thread.php
@@ -174,8 +174,9 @@ public function scopeForUserWithNewMessages($query, $userId)
      */
     public function scopeBetween($query, array $participants)
     {
-        $query->whereHas('participants', function ($query) use ($participants) {
-            $query->whereIn('user_id', $participants)
+        return $query->whereHas('participants', function ($q) use ($participants) {
+            $q->whereIn('user_id', $participants)
+                ->select($this->getConnection()->raw('DISTINCT(thread_id)'))
                 ->groupBy('thread_id')
                 ->havingRaw('COUNT(thread_id)=' . count($participants));
         });