From dea1ccfe8674df816aa80849c5618854035ebed7 Mon Sep 17 00:00:00 2001
From: Kim Taylor <kmtaylor@gmx.com>
Date: Sat, 5 Oct 2024 11:14:26 +1000
Subject: [PATCH] Overrides can delete entries by not specifying a replacement
 field.

---
 csv-generic/gen-generic.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/csv-generic/gen-generic.php b/csv-generic/gen-generic.php
index fcbf907..ccc6cca 100644
--- a/csv-generic/gen-generic.php
+++ b/csv-generic/gen-generic.php
@@ -122,13 +122,17 @@ foreach ($lga_list as $lga) {
         foreach ($lines as $line_key => $line) {
             $match_index = array_search($override['Match Field'], $header); 
             $replace_index = array_search($override['Replace Field'], $header); 
-            if ($line[$match_index] === $override['Match Value']) { 
-                $lines[$line_key][$replace_index] = $override['Replace Value'];
+            if ($line[$match_index] === $override['Match Value']) {
+                if ($replace_index !== false)
+                    $lines[$line_key][$replace_index] = $override['Replace Value'];
+                else /* If 'Replace Field' is not matched - delete this entry */
+                    $lines[$line_key]['Delete'] = 'y';
             }
         }
     }
 
     foreach ($lines as $line) {
+        if (isset($line['Delete'])) continue;
         if (fputcsv($handle, $line) === FALSE) {
             error_log('Error writing candidate to output file');
             exit(3);