added Blog entity

src/Entity/User.php

@@ -3,6 +3,8 @@
 namespace App\Entity;
 
 use App\Repository\UserRepository;
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Security\Core\User\UserInterface;
 
@@ -59,6 +61,16 @@ class User implements UserInterface
      */
     private $lastLoginAt;
 
+    /**
+     * @ORM\OneToMany(targetEntity=Blog::class, mappedBy="author")
+     */
+    private $blogs;
+
+    public function __construct()
+    {
+        $this->blogs = new ArrayCollection();
+    }
+
     public function getId(): ?int
     {
         return $this->id;
@@ -194,4 +206,34 @@ class User implements UserInterface
 
         return $this;
     }
+
+    /**
+     * @return Collection|Blog[]
+     */
+    public function getBlogs(): Collection
+    {
+        return $this->blogs;
+    }
+
+    public function addBlog(Blog $blog): self
+    {
+        if (!$this->blogs->contains($blog)) {
+            $this->blogs[] = $blog;
+            $blog->setAuthor($this);
+        }
+
+        return $this;
+    }
+
+    public function removeBlog(Blog $blog): self
+    {
+        if ($this->blogs->removeElement($blog)) {
+            // set the owning side to null (unless already changed)
+            if ($blog->getAuthor() === $this) {
+                $blog->setAuthor(null);
+            }
+        }
+
+        return $this;
+    }
 }