fixed related name field

.vscode/settings.json

 {
-    "python.pythonPath": "/usr/bin/python3",
+    "python.pythonPath": "/Library/Frameworks/Python.framework/Versions/3.7/bin/python3",
     "python.linting.pylintEnabled": false,
     "python.linting.enabled": false,
     "python.linting.pylamaEnabled": true

ipam_proj/ipam/models.py

@@ -14,18 +14,18 @@ class Record(models.Model):
         max_length=12,
         choices=RECORD_TYPES,
     )
-    host = models.ForeignKey(Host, related_name='Host', on_delete=models.CASCADE)
+    host = models.ForeignKey(Host, related_name='record', on_delete=models.CASCADE)
     def __str__(self):
         return self.record_type + ', id: ' + str(self.id)
 
 class Adapter(models.Model):
-    host = models.OneToOneField(Host, related_name='Adapter', on_delete=models.CASCADE)
+    host = models.ForeignKey(Host, related_name='adapter', on_delete=models.CASCADE)
     adapter_name = models.CharField(max_length=50, default='Adapter')
     def __str__(self):
         return self.adapter_name + ', id: ' + str(self.id)
 
 class Mac_Addr(models.Model):
-    adapter = models.OneToOneField(Adapter, related_name='Mac',on_delete=models.CASCADE)
+    adapter = models.OneToOneField(Adapter, related_name='mac',on_delete=models.CASCADE)
     mac = models.CharField(max_length=18)
     def __str__(self):
         return self.mac + ', id: ' + str(self.id)
@@ -50,8 +50,8 @@ class Preamble(models.Model):
         return self.pa_subnet_name + ', id: ' + str(self.id)
 
 class Subnet(models.Model):
-    preamble = models.OneToOneField(Preamble, related_name='Subnet',on_delete=models.CASCADE)
-    role = models.OneToOneField(Role, related_name='Subnet', on_delete=models.SET_NULL, blank=True, null=True)
+    preamble = models.OneToOneField(Preamble, related_name='subnet',on_delete=models.CASCADE)
+    role = models.OneToOneField(Role, related_name='subnet', on_delete=models.SET_NULL, blank=True, null=True)
     subnet_name = models.CharField(max_length=128, default='Sub')
     def __str__(self):
         return self.subnet_name + ', id: ' + str(self.id)