M2m products topics

kitsune/products/apps.py

@@ -4,3 +4,6 @@
 class ProductsConfig(AppConfig):
     name = "kitsune.products"
     default_auto_field = "django.db.models.AutoField"
+
+    def ready(self):
+        from kitsune.products import signals  # noqa

kitsune/products/migrations/0007_remove_product_sprite_height.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.2.11 on 2024-06-06 06:31
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("products", "0006_alter_product_and_topic_images"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="product",
+            name="sprite_height",
+        ),
+    ]

kitsune/products/migrations/0008_topic_products.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.11 on 2024-06-06 06:31
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("products", "0007_remove_product_sprite_height"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="topic",
+            name="products",
+            field=models.ManyToManyField(related_name="m2m_topics", to="products.product"),
+        ),
+    ]

kitsune/products/migrations/0009_auto_20240606_0632.py

@@ -0,0 +1,24 @@
+# Generated by Django 4.2.11 on 2024-06-06 06:32
+
+import copy
+
+from django.db import migrations
+
+
+def copy_product_to_products(apps, schema_editor):
+    Topic = apps.get_model("products", "Topic")
+    for topic in Topic.objects.all():
+        if topic.product:
+            topic.products.add(topic.product)
+
+
+def m2m_backwards(apps, schema_editor): ...
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("products", "0008_topic_products"),
+    ]
+
+    operations = [migrations.RunPython(copy_product_to_products, m2m_backwards)]

kitsune/products/migrations/0010_topicslughistory.py

@@ -0,0 +1,38 @@
+# Generated by Django 4.2.11 on 2024-06-06 07:07
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("products", "0009_auto_20240606_0632"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="TopicSlugHistory",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
+                    ),
+                ),
+                ("slug", models.CharField(max_length=255)),
+                ("created", models.DateTimeField(auto_now_add=True)),
+                (
+                    "topic",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="slug_history",
+                        to="products.topic",
+                    ),
+                ),
+            ],
+            options={
+                "ordering": ["-created"],
+            },
+        ),
+    ]

kitsune/products/models.py

@@ -37,7 +37,6 @@ class Product(ModelBase):
     )
     image_offset = models.IntegerField(default=None, null=True, editable=False)
     image_cachebuster = models.CharField(max_length=32, default=None, null=True, editable=False)
-    sprite_height = models.IntegerField(default=None, null=True, editable=False)
 
     # Dictates the order in which products are displayed in product
     # lists.
@@ -96,6 +95,7 @@ class Topic(ModelBase):
 
     # Topics are product-specific
     product = models.ForeignKey(Product, on_delete=models.CASCADE, related_name="topics")
+    products = models.ManyToManyField(Product, related_name="m2m_topics")
 
     # Topics can optionally have a parent.
     parent = models.ForeignKey(
@@ -169,6 +169,15 @@ def get_absolute_url(self):
             )
 
 
+class TopicSlugHistory(ModelBase):
+    topic = models.ForeignKey(Topic, on_delete=models.CASCADE, related_name="slug_history")
+    slug = models.CharField(max_length=255)
+    created = models.DateTimeField(auto_now_add=True)
+
+    class Meta(object):
+        ordering = ["-created"]
+
+
 class Version(ModelBase):
     name = models.CharField(max_length=255)
     # We don't use a SlugField here because we want to allow dots.

kitsune/products/signals.py

@@ -0,0 +1,12 @@
+from django.db.models.signals import pre_save
+from django.dispatch import receiver
+
+from kitsune.products.models import Topic
+
+
+@receiver(pre_save, sender=Topic)
+def update_topic_slug_history(sender, instance, **kwargs):
+    if instance.pk:
+        old_instance = sender.objects.get(pk=instance.pk)
+        if old_instance.slug != instance.slug:
+            TopicSlugHistory.objects.create(topic=instance, slug=old_instance.slug)