fix(reference): prevent empty string in ecotax_price by setting a default value (#451)

* fix(reference): prevent empty string in ecotax_price by setting a default value

* CHANGELOG.md

* Update inc/reference.class.php

Co-authored-by: Romain B. <[email protected]>

* Update inc/reference.class.php

Co-authored-by: Romain B. <[email protected]>

---------

Co-authored-by: Romain B. <[email protected]>

Author: MyvTsv

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ## [Unreleased]
 
 - Fix icon for `transfer` action
+- Fix reference form error when ecotax_price field is not set
 
 ## [2.11.1] - 2025-07-11
 

inc/reference.class.php

@@ -325,6 +325,10 @@ public function prepareInputForAdd($input)
             return false;
         }
 
+        if (empty($input["ecotax_price"])) {
+            $input["ecotax_price"] = 0;
+        }
+
         return $input;
     }
 
@@ -740,7 +744,7 @@ public function showForm($id, $options = [])
                 'type'  => 'number',
                 'step'  => PLUGIN_ORDER_NUMBER_STEP,
                 'min'   => 0,
-                'value' => $this->fields['ecotax_price'],
+                'value' => Html::formatNumber($this->fields["ecotax_price"], true),
             ]
         );
         echo "</td>";