Add "auto_assign" to custom field.

config/forms/custom_field.php

@@ -25,7 +25,7 @@ return [
                     ],
                 ],
 
-                'auto_set_from' => [
+                'auto_assign' => [
                     'select',
                     [
                         'label' => __('Automatically Set from ID3v2 Value'),

src/Entity/CustomField.php

@@ -47,6 +47,15 @@ class CustomField
      */
     protected $short_name;
 
+    /**
+     * @ORM\Column(name="auto_assign", type="string", length=100, nullable=true)
+     *
+     * @OA\Property()
+     *
+     * @var string|null An ID3v2 field to automatically assign to this value, if it exists in the media file.
+     */
+    protected $auto_assign;
+
     /**
      * @return int
      */
@@ -97,4 +106,28 @@ class CustomField
             $this->short_name = $this->_truncateString($short_name, 100);
         }
     }
+
+    /**
+     * @return string|null
+     */
+    public function getAutoAssign(): ?string
+    {
+        return $this->auto_assign;
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasAutoAssign(): bool
+    {
+        return !empty($this->auto_assign);
+    }
+
+    /**
+     * @param string|null $auto_assign
+     */
+    public function setAutoAssign(?string $auto_assign): void
+    {
+        $this->auto_assign = $auto_assign;
+    }
 }