Removed file related fields from book entity except fo the cover.

migrations/Version20220520130832.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20220520130832 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE TABLE file (id INT AUTO_INCREMENT NOT NULL, book_id INT NOT NULL, file_name VARCHAR(255) NOT NULL, file_size INT NOT NULL, extension VARCHAR(255) NOT NULL, type VARCHAR(255) NOT NULL, INDEX IDX_8C9F361016A2B381 (book_id), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+        $this->addSql('ALTER TABLE file ADD CONSTRAINT FK_8C9F361016A2B381 FOREIGN KEY (book_id) REFERENCES book (id)');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('DROP TABLE file');
+    }
+}