[Fix]: Data values not formatted when coming from fields plugin custom fields

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## Unreleased
+
+### Fixed
+
+- Fix an issue where data are not formatted when coming from a field plugin's custom field.
+
 ## [2.15.10] - 2026-08-07
 
 ### Fixed

inc/commoninjectionlib.class.php

@@ -1098,6 +1098,14 @@ private function reformatThirdPass()
                 //Get search option associated with the field
                 $option = self::findSearchOption($searchOptions, $field);
 
+                if ($option && !isset($option['checktype'])) {
+                    // In some cases, float datatype is wrongly detected as string, decimal or number, so we check that first.
+                    //Regex matches all decimal formats accepted by glpi
+                    $option['checktype'] = (preg_match('/^(?:(?:\d{1,3}(?: \d{3})+|\d+)[.,]|\d{1,3}(?:,\d{3})+\.)\d+$/', $value) !== 0)
+                        ? "float"
+                        : $option['datatype'];
+                }
+
                 // Check some types
                 switch ($option['checktype'] ?? 'text') {
                     case "date":
@@ -1397,7 +1405,7 @@ private function checkType($injectionClass, $option, $field_name, $data, $mandat
     {
 
         if (!empty($option)) {
-            $field_type = ($option['checktype'] ?? 'text');
+            $field_type = ($option['checktype'] ?? $option['datatype'] ?? 'text');
 
             //If no data provided AND this mapping is not mandatory
             if (