.

oef/models.py

@@ -37,6 +37,8 @@ class Formats(models.Model):
 
     inherits = models.ForeignKey('self', on_delete=models.CASCADE, null=True, blank=True)
 
+    specialties = models.ManyToManyField('Specialty', blank=True)
+
     def __str__(self):
         return self.name
 
@@ -58,4 +60,10 @@ class Formats(models.Model):
             formats.append(self.format)
 
         formats.reverse()
-        return "\n".join(formats)
+        return "\n".join(formats)
+
+class Specialty(models.Model):
+    name = models.CharField(max_length=200)
+
+    def __str__(self):
+        return self.name