Refactoring to avoid collisions.

README.md

@@ -21,12 +21,17 @@ pip3 install --upgrade pip
 pip3 install -f src/requirements.txt
 ```
 
-## Installation
-
-Run it manually via:
+Test if your installation works:
 ```
 python3 src/manage.py test
 ```
 
+## Installation
+
+Run it manually via:
+```
+python3 src/manage.py runserver
+```
+
 For production environments, gunicorn or a similar UWSGI implementation, preferably using a webserver as a proxy is recommended.
 

src/pdns/migrations/0006_rename_domain_name_pdnsdomain_name_and_more.py

@@ -0,0 +1,45 @@
+# Generated by Django 5.2.5 on 2025-10-24 09:41
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pdns", "0005_pdnsdomain_domain_type"),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name="pdnsdomain",
+            old_name="domain_name",
+            new_name="name",
+        ),
+        migrations.RenameField(
+            model_name="pdnsdomain",
+            old_name="domain_type",
+            new_name="type",
+        ),
+        migrations.AddField(
+            model_name="pdnsdomain",
+            name="last_loaded",
+            field=models.DateTimeField(
+                editable=False, null=True, verbose_name="Last loaded"
+            ),
+        ),
+        migrations.AddField(
+            model_name="pdnsdomain",
+            name="last_notified",
+            field=models.PositiveIntegerField(
+                editable=False, null=True, verbose_name="Last notified serial"
+            ),
+        ),
+        migrations.AddField(
+            model_name="pdnsdomain",
+            name="serial",
+            field=models.PositiveIntegerField(
+                default=1970010101, verbose_name="Serial"
+            ),
+            preserve_default=False,
+        ),
+    ]

src/pdns/migrations/0007_rename_type_pdnsdomain_domain_type_and_more.py

@@ -0,0 +1,57 @@
+# Generated by Django 5.2.5 on 2025-10-27 21:51
+
+import django.core.validators
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pdns", "0006_rename_domain_name_pdnsdomain_name_and_more"),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name="pdnsdomain",
+            old_name="type",
+            new_name="domain_type",
+        ),
+        migrations.AlterField(
+            model_name="pdnsdomain",
+            name="name",
+            field=models.CharField(
+                max_length=250,
+                validators=[
+                    django.core.validators.DomainNameValidator(
+                        message="Must be a valid domain name."
+                    )
+                ],
+                verbose_name="Name",
+            ),
+        ),
+        migrations.CreateModel(
+            name="PDNSResourceRecord",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("record_type", models.CharField(verbose_name="Type")),
+                (
+                    "domain",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="records",
+                        to="pdns.pdnsdomain",
+                        verbose_name="Domain",
+                    ),
+                ),
+            ],
+        ),
+    ]

src/pdns/models.py

@@ -5,26 +5,29 @@
 from django.db import models
 from django.utils.timezone import now
 from django.utils.translation import gettext as _
-
-# Okay, going to illustrate my thinking here:
-# A ##Context## is a set of servers that operate together as 
-# authoritative for a group of zones.
-
-# (I was going to call it a Network, but then I found out 
-# about https://doc.powerdns.com/authoritative/views.html )
-
-# All ##Servers## within a Context are presumed to be
-# using the same database and be otherwise interchangeable,
-# Although given the limitations of some backends they can 
-# be set to read-only.
+from django.core.validators import DomainNameValidator
 
 
-# Basic code structure convention for models: 
-# 1. Meta information 
-# 2. Data fields
-# 3. Functions
-# Alphabetical order within each of those categories if 
-# possible.
+"""
+    Okay, going to illustrate my thinking here:
+    A ##Context## is a set of servers that operate together
+    as authoritative for a group of zones.
+
+    (I was going to call it a Network, but then I found out 
+    about https://doc.powerdns.com/authoritative/views.html )
+
+    All ##Servers## within a Context are presumed to be
+    using the same database and be otherwise interchangeable,
+    Although given the limitations of some backends they can 
+    be set to read-only.
+"""
+
+"""
+    Basic code structure convention for models: 
+    1. Meta information 
+    2. Data fields
+    3. Functions
+"""
 
 class PDNSContext(models.Model):
     description = models.TextField(verbose_name=_('Description'),
@@ -88,8 +91,10 @@ class PDNSServer(models.Model):
         default=False
     )
 
-    # Depending on the PDNS cluster architecture certain servers
-    # might not be writeable due to the backend.
+    """
+    Depending on the PDNS cluster architecture certain servers might not 
+    be writeable due to the backend, so we allow for that.
+    """
     readonly = models.BooleanField(verbose_name=_('Read Only'),
         default=False
     )
@@ -137,12 +142,47 @@ class PDNSDomain(models.Model):
         on_delete=models.CASCADE,
     )
 
-    domain_name = models.CharField(verbose_name='Name',
+    name = models.CharField(verbose_name='Name',
         max_length=250,
+        validators=[DomainNameValidator(message=_('Must be a valid domain name.'))]
     )
 
+    # Avoiding possible collision with the 'type' soft keyword; 
+    # see https://docs.python.org/3/reference/lexical_analysis.html#soft-keywords 
+
     domain_type = models.CharField(verbose_name='Type',
         choices=DOMAIN_TYPE_CHOICES,
         default=DOMAIN_TYPE_CHOICES['NATIVE']
     )
 
+    """ 
+    ##convention## for serials is YYYYMMDDNN with NN being incremented
+     each time the domain is updated on the same day, but there is no 
+    rule against going 1,2,3,4...
+    """
+
+    serial = models.PositiveIntegerField(verbose_name=_('Serial'),
+    )
+
+    last_notified = models.PositiveIntegerField(verbose_name=_('Last notified serial'),
+        editable=False,
+        null=True
+    )
+
+    last_loaded = models.DateTimeField(verbose_name=_('Last loaded'),
+        editable=False,
+        null=True
+    )
+
+class PDNSResourceRecord(models.Model):
+    """
+        Individual record types will inherit from this and have custom
+        validators; this base class will serve for any record type we 
+        didn't put in yet.
+    """
+    domain = models.ForeignKey(PDNSDomain, verbose_name=_('Domain'),
+        on_delete=models.CASCADE,
+        related_name='records'
+    )
+
+    record_type = models.CharField(verbose_name='Type')