Extend properties

dcc/roster/admin.py

@@ -5,6 +5,7 @@ from roster.models import (
     RollingStock,
     RollingStockImage,
     RollingStockDocument,
+    RollingStockProperty,
 )
 
 
@@ -35,9 +36,19 @@ class RollingStockImageInline(admin.TabularInline):
     readonly_fields = ("image_thumbnail",)
 
 
+class RollingStockPropertyInline(admin.TabularInline):
+    model = RollingStockProperty
+    min_num = 0
+    extra = 0
+
+
 @admin.register(RollingStock)
 class RollingStockAdmin(admin.ModelAdmin):
-    inlines = (RollingStockImageInline, RollingStockDocInline)
+    inlines = (
+        RollingStockImageInline,
+        RollingStockDocInline,
+        RollingStockPropertyInline
+    )
     readonly_fields = ("creation_time", "updated_time")
     list_display = (
         "__str__",

dcc/roster/migrations/0010_rollingstockproperty.py

@@ -0,0 +1,24 @@
+# Generated by Django 4.0.3 on 2022-04-07 09:19
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('metadata', '0008_property_alter_manufacturer_options_and_more'),
+        ('roster', '0009_remove_rollingclass_wheel_arrangement'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='RollingStockProperty',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('value', models.CharField(max_length=256)),
+                ('property', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='metadata.property')),
+                ('rolling_stock', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='roster.rollingstock')),
+            ],
+        ),
+    ]

dcc/roster/models.py

@@ -59,6 +59,9 @@ class RollingClassProperty(models.Model):
     def __str__(self):
         return self.property.name
 
+    class Meta:
+        verbose_name_plural = "Properties"
+
 
 class RollingStock(models.Model):
     uuid = models.UUIDField(primary_key=True, default=uuid4, editable=False)
@@ -133,6 +136,23 @@ class RollingStockImage(models.Model):
         return "{0}".format(os.path.basename(self.image.name))
 
 
+class RollingStockProperty(models.Model):
+    rolling_stock = models.ForeignKey(
+        RollingStock,
+        on_delete=models.CASCADE,
+        null=False,
+        blank=False
+    )
+    property = models.ForeignKey(Property, on_delete=models.CASCADE)
+    value = models.CharField(max_length=256)
+
+    def __str__(self):
+        return self.property.name
+
+    class Meta:
+        verbose_name_plural = "Properties"
+
+
 # @receiver(models.signals.post_delete, sender=Cab)
 # def post_save_image(sender, instance, *args, **kwargs):
 #     try: