current init

backend/migrations/Version20260326165702.php

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+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260326165702 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Rename task → task_schema, task_occurrence → task';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // 1. Drop FKs on task_occurrence that reference task
+        $this->addSql('ALTER TABLE task_occurrence DROP FOREIGN KEY FK_A2EECA5C8DB60186');
+
+        // 2. Drop FK on task.category_id
+        $this->addSql('ALTER TABLE task DROP FOREIGN KEY FK_527EDB2512469DE2');
+
+        // 3. Rename tables
+        $this->addSql('RENAME TABLE task TO task_schema');
+        $this->addSql('RENAME TABLE task_occurrence TO task');
+
+        // 4. Re-create FK: task.task_id → task_schema.id
+        $this->addSql('ALTER TABLE task ADD CONSTRAINT FK_527EDB258DB60186 FOREIGN KEY (task_id) REFERENCES task_schema (id) ON DELETE CASCADE');
+
+        // 5. Re-create FK: task_schema.category_id → category.id
+        $this->addSql('ALTER TABLE task_schema ADD CONSTRAINT FK_8327C58112469DE2 FOREIGN KEY (category_id) REFERENCES category (id) ON DELETE SET NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // Drop FKs
+        $this->addSql('ALTER TABLE task DROP FOREIGN KEY FK_527EDB258DB60186');
+        $this->addSql('ALTER TABLE task_schema DROP FOREIGN KEY FK_8327C58112469DE2');
+
+        // Rename back
+        $this->addSql('RENAME TABLE task TO task_occurrence');
+        $this->addSql('RENAME TABLE task_schema TO task');
+
+        // Re-create original FKs
+        $this->addSql('ALTER TABLE task_occurrence ADD CONSTRAINT FK_A2EECA5C8DB60186 FOREIGN KEY (task_id) REFERENCES task (id) ON DELETE CASCADE');
+        $this->addSql('ALTER TABLE task ADD CONSTRAINT FK_527EDB2512469DE2 FOREIGN KEY (category_id) REFERENCES category (id) ON DELETE SET NULL');
+    }
+}