fix : corrections de tous les retours

migrations/Version20260213114000.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260213114000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Allow only one bovin_shipment row per shipment.';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // Keep one row per shipment (latest id), required before adding unique index.
+        $this->addSql(<<<'SQL'
+            DELETE FROM bovin_shipment bs
+            USING (
+                SELECT id, ROW_NUMBER() OVER (PARTITION BY shipment_id ORDER BY id DESC) AS rn
+                FROM bovin_shipment
+                WHERE shipment_id IS NOT NULL
+            ) d
+            WHERE bs.id = d.id
+              AND d.rn > 1
+            SQL);
+
+        $this->addSql('DROP INDEX IF EXISTS uniq_bovin_shipment');
+        $this->addSql('CREATE UNIQUE INDEX uniq_bovin_shipment_one_type ON bovin_shipment (shipment_id)');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('DROP INDEX IF EXISTS uniq_bovin_shipment_one_type');
+        $this->addSql('CREATE UNIQUE INDEX uniq_bovin_shipment ON bovin_shipment (shipment_id, shipment_type_id)');
+    }
+}