Extend manufacturer and make volume frendly

dcc/metadata/admin.py

@@ -14,12 +14,14 @@ class DecoderAdmin(admin.ModelAdmin):
     readonly_fields = ("image_thumbnail",)
     list_display = ("__str__", "interface")
     list_filter = ("manufacturer", "interface")
+    search_fields = ("__str__",)
 
 
 @admin.register(Scale)
 class ScaleAdmin(admin.ModelAdmin):
     list_display = ("scale", "ratio", "gauge")
     list_filter = ("ratio", "gauge")
+    search_fields = list_display
 
 
 @admin.register(Company)
@@ -27,20 +29,26 @@ class CompanyAdmin(admin.ModelAdmin):
     readonly_fields = ("logo_thumbnail",)
     list_display = ("name", "country")
     list_filter = list_display
+    search_fields = ("name",)
 
 
 @admin.register(Manufacturer)
 class ManufacturerAdmin(admin.ModelAdmin):
     readonly_fields = ("logo_thumbnail",)
+    list_display = ("name", "category")
+    list_filter = ("category",)
+    search_fields = ("name",)
 
 
 @admin.register(Tag)
 class TagAdmin(admin.ModelAdmin):
     readonly_fields = ("slug",)
     list_display = ("name", "slug")
+    search_fields = ("name",)
 
 
 @admin.register(RollingStockType)
 class RollingStockTypeAdmin(admin.ModelAdmin):
     list_display = ("__str__",)
     list_filter = ("type", "category")
+    search_fields = list_display

dcc/metadata/migrations/0006_manufacturer_category.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.0.3 on 2022-04-04 19:14
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('metadata', '0005_alter_company_freelance_alter_decoder_sound'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='manufacturer',
+            name='category',
+            field=models.CharField(choices=[('model', 'Model train'), ('real', 'Real train')], default='model', max_length=64),
+            preserve_default=False,
+        ),
+    ]

dcc/metadata/migrations/0007_alter_manufacturer_category.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.0.3 on 2022-04-04 19:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('metadata', '0006_manufacturer_category'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='manufacturer',
+            name='category',
+            field=models.CharField(choices=[('model', 'Model train manufacturer'), ('real', 'Real train manufacturer')], max_length=64),
+        ),
+    ]

dcc/metadata/models.py

@@ -8,9 +8,15 @@ from dcc.utils import get_image_preview, slugify
 
 class Manufacturer(models.Model):
     name = models.CharField(max_length=128, unique=True)
+    category = models.CharField(
+        max_length=64, choices=settings.MANUFACTURER_TYPES
+    )
     website = models.URLField(blank=True)
     logo = models.ImageField(upload_to="images/", null=True, blank=True)
 
+    class Meta:
+        ordering = ["category", "name"]
+
     def __str__(self):
         return self.name