From 0a1fc128b79eafa386e63a8b5fd9aeb5688e44a6 Mon Sep 17 00:00:00 2001
From: Pavel Dohnal <pavel@mailpoet.com>
Date: Mon, 17 May 2021 10:04:01 +0200
Subject: [PATCH] Add a code comment

[MAILPOET-3220]
---
 lib/Segments/DynamicSegments/Filters/MailPoetCustomFields.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Segments/DynamicSegments/Filters/MailPoetCustomFields.php b/lib/Segments/DynamicSegments/Filters/MailPoetCustomFields.php
index 5515d459e4..959773a5f1 100644
--- a/lib/Segments/DynamicSegments/Filters/MailPoetCustomFields.php
+++ b/lib/Segments/DynamicSegments/Filters/MailPoetCustomFields.php
@@ -92,6 +92,8 @@ class MailPoetCustomFields implements Filter {
     } elseif ($operator === 'after') {
       $queryBuilder->andWhere("subscribers_custom_field.value > $valueParam");
     } else {
+      // we always save full date in the database: 2018-03-01 00:00:00
+      // so this works even for year_month where we save the first day of the month
       $queryBuilder->andWhere("subscribers_custom_field.value = $valueParam");
     }
     return $queryBuilder;