From a0182707121a0c0fd9927fb24d83e6ac96e376b1 Mon Sep 17 00:00:00 2001
From: Andreas Scherbaum <andreasscherbaum@users.noreply.github.com>
Date: Sun, 3 May 2020 21:29:30 +0200
Subject: [PATCH] Add CAST for "value" column when selecting mf_hCalendar data
 (#115)

Otherwise PostgreSQL will throw an "operator does not exist" error
---
 .../serendipity_plugin_microformats.php                | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/serendipity_event_microformats/serendipity_plugin_microformats.php b/serendipity_event_microformats/serendipity_plugin_microformats.php
index 2253acaa..4d43cad9 100644
--- a/serendipity_event_microformats/serendipity_plugin_microformats.php
+++ b/serendipity_event_microformats/serendipity_plugin_microformats.php
@@ -153,7 +153,13 @@ class serendipity_plugin_microformats extends serendipity_plugin
                                 'mf_hCalendar_enddate'  => 'DTEND',
                                 'mf_hCalendar_desc'     => 'DESC');
             if ($this->get_config('include_entries') === true) {
-                $query = 'SELECT * FROM ' . $serendipity['dbPrefix'] . 'entryproperties WHERE property LIKE \'mf_hCalendar_%\' AND entryid IN (SELECT entryid FROM ' . $serendipity['dbPrefix'] . 'entryproperties WHERE property = \'mf_hCalendar_startdate\' AND value > (' . time() . ($this->get_config('purge') !== false ? ' - ' . 86400 * intval($this->get_config('purge')) : ' ') . '))';
+                if ($serendipity['dbType'] == "postgres") {
+                    // "value" needs to be casted to INT, otherwise PostgreSQL will raise an error:
+                    // operator does not exist: text > integer
+                    $query = 'SELECT * FROM ' . $serendipity['dbPrefix'] . 'entryproperties WHERE property LIKE \'mf_hCalendar_%\' AND entryid IN (SELECT entryid FROM ' . $serendipity['dbPrefix'] . 'entryproperties WHERE property = \'mf_hCalendar_startdate\' AND value::INT > (' . time() . ($this->get_config('purge') !== false ? ' - ' . 86400 * intval($this->get_config('purge')) : ' ') . '))';
+                } else {
+                    $query = 'SELECT * FROM ' . $serendipity['dbPrefix'] . 'entryproperties WHERE property LIKE \'mf_hCalendar_%\' AND entryid IN (SELECT entryid FROM ' . $serendipity['dbPrefix'] . 'entryproperties WHERE property = \'mf_hCalendar_startdate\' AND value > (' . time() . ($this->get_config('purge') !== false ? ' - ' . 86400 * intval($this->get_config('purge')) : ' ') . '))';
+                }
                 $result = serendipity_db_query($query, false, 'assoc');
                 $counter = count($event)-1;
                 if (is_array($result)) {
@@ -205,4 +211,4 @@ class serendipity_plugin_microformats extends serendipity_plugin
             echo '<div style="text-align:right;"><a href="http://microformats.org/wiki/hcalendar" title="hCalendar microformat enabled"><img src="' . $serendipity['baseURL'] . 'plugins/' . $plugin_dir . '/img/icon-hcalendar.png" width=29" height="18" alt="hCalendar" style="border:none;" /></a></div>';
         }
     }
-}
\ No newline at end of file
+}