From 639c71739b8deeb2b944dae94f13cb5651285f8a Mon Sep 17 00:00:00 2001
From: ternite <7860777+ternite@users.noreply.github.com>
Date: Tue, 31 Jan 2023 08:09:13 +0100
Subject: [PATCH] added functionality so that in case of multiple commands
 setting the same field will result in only the first field being set

---
 conf/default.php              |  6 ++++++
 conf/metadata.php             |  6 ++++++
 lang/de-informal/settings.php |  5 +++++
 lang/de/settings.php          |  5 +++++
 lang/en/settings.php          |  5 +++++
 syntax.php                    | 18 ++++++++++++++----
 6 files changed, 41 insertions(+), 4 deletions(-)
 create mode 100644 conf/default.php
 create mode 100644 conf/metadata.php
 create mode 100644 lang/de-informal/settings.php
 create mode 100644 lang/de/settings.php
 create mode 100644 lang/en/settings.php

diff --git a/conf/default.php b/conf/default.php
new file mode 100644
index 0000000..ebd67f9
--- /dev/null
+++ b/conf/default.php
@@ -0,0 +1,6 @@
+<?php
+/**
+ * Default config settings of the fields plugin.
+ */
+
+$conf['firstfielddefinitionwins'] = 1;
diff --git a/conf/metadata.php b/conf/metadata.php
new file mode 100644
index 0000000..3ef9b6b
--- /dev/null
+++ b/conf/metadata.php
@@ -0,0 +1,6 @@
+<?php
+/**
+ * Options for the fields plugin
+ */
+ 
+$meta['firstfielddefinitionwins']   = array('onoff');
diff --git a/lang/de-informal/settings.php b/lang/de-informal/settings.php
new file mode 100644
index 0000000..02137a3
--- /dev/null
+++ b/lang/de-informal/settings.php
@@ -0,0 +1,5 @@
+<?php
+
+/**
+ */
+$lang['firstfielddefinitionwins'] = 'Bei mehreren Definitionen von field auf einer Seite wird die erste verwendet. (Im Fall von false, wird das letzte verwendet.)';
diff --git a/lang/de/settings.php b/lang/de/settings.php
new file mode 100644
index 0000000..02137a3
--- /dev/null
+++ b/lang/de/settings.php
@@ -0,0 +1,5 @@
+<?php
+
+/**
+ */
+$lang['firstfielddefinitionwins'] = 'Bei mehreren Definitionen von field auf einer Seite wird die erste verwendet. (Im Fall von false, wird das letzte verwendet.)';
diff --git a/lang/en/settings.php b/lang/en/settings.php
new file mode 100644
index 0000000..6e91b58
--- /dev/null
+++ b/lang/en/settings.php
@@ -0,0 +1,5 @@
+<?php
+/**
+ * English language file for config settings.
+ */
+$lang['firstfielddefinitionwins'] = 'In case of multiple definitions of a particular field, the first will be used. (The value false will apply the last definition, instead.)';
diff --git a/syntax.php b/syntax.php
index 16edafd..f5624f5 100644
--- a/syntax.php
+++ b/syntax.php
@@ -16,7 +16,8 @@ class syntax_plugin_fields extends DokuWiki_Syntax_Plugin {
      * Constructor. Loads helper plugin.
      */
     public function __construct() {
-        $this->helper = $this->loadHelper('fields');
+        $this->fields_helper = plugin_load('helper','fields');
+        $this->usecounter_helper = plugin_load('helper','usecounter');
     }
 
     /**
@@ -70,7 +71,7 @@ public function render($format, Doku_Renderer $renderer, $data) {
                 $renderer->doc .= $renderer->fields[$field_name];
                 return true;
             } elseif ($format == 'odt') {
-                $renderer->doc .= $this->helper->ODTDisplayUserField($renderer, $field_name);
+                $renderer->doc .= $this->fields_helper->ODTDisplayUserField($renderer, $field_name);
                 return true;
             }
         } else {
@@ -82,8 +83,17 @@ public function render($format, Doku_Renderer $renderer, $data) {
                 $renderer->fields[$field_name] = htmlentities($field_value);
                 return true;
             } elseif ($format == 'odt') {
-                $this->helper->ODTSetUserField($renderer, $field_name,
-                    $renderer->_xmlEntities($field_value));
+                if ($this->getConf('firstfielddefinitionwins')) {
+                    if ($this->usecounter_helper && $this->usecounter_helper->amountOfUses('fields_'.$field_name) == 0) {
+                        $this->fields_helper->ODTSetUserField($renderer, $field_name, $renderer->_xmlEntities($field_value));
+                    }
+                    
+                    if ($this->usecounter_helper) {
+                        $this->usecounter_helper->incUsageOf('fields_'.$field_name);
+                    }
+                } else {
+                    $this->fields_helper->ODTSetUserField($renderer, $field_name, $renderer->_xmlEntities($field_value));
+                }
                 return true;
             }
         }