Updated form to accommodate new datatype.

src/Entity/File.php

@@ -23,7 +23,7 @@ class File
     private $extension;
 
     #[ORM\Column(type: 'string', length: 255)]
-    private $type;
+    private $type = 'ebook';
 
     #[ORM\ManyToOne(targetEntity: Book::class, inversedBy: 'files')]
     #[ORM\JoinColumn(nullable: false)]
@@ -75,7 +75,7 @@ class File
         return $this->type;
     }
 
-    public function setType(string $type): self
+    public function setType(string $type = 'ebook'): self
     {
         $this->type = $type;