Keep media folder clean (#28)

* Reorg roster, portal and bookshelf media
* Extend media reorg to consists
* Delete roster and bookshelf images on delte.
   Do not delete others data that might be dedup! 
* Bump version

ram/consist/migrations/0009_alter_consist_image.py

@@ -0,0 +1,51 @@
+# Generated by Django 4.2.6 on 2023-10-31 09:41
+
+import os
+import sys
+import shutil
+import ram.utils
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+def move_images(apps, schema_editor):
+    sys.stdout.write("\n  Processing files. Please await...")
+    model = apps.get_model("consist", "Consist")
+    for r in model.objects.all():
+        if not r.image:  # exit the loop if there's no image
+            continue
+        fname = os.path.basename(r.image.path)
+        new_image = os.path.join("images", "consists", fname)
+        new_path = os.path.join(settings.MEDIA_ROOT, new_image)
+        os.makedirs(os.path.dirname(new_path), exist_ok=True)
+        try:
+            shutil.move(r.image.path, new_path)
+        except FileNotFoundError:
+            sys.stderr.write("  !! FileNotFoundError: {}\n".format(new_image))
+            pass
+        r.image.name = new_image
+        r.save()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("consist", "0008_alter_consist_options"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="consist",
+            name="image",
+            field=models.ImageField(
+                blank=True,
+                null=True,
+                storage=ram.utils.DeduplicatedStorage,
+                upload_to="images/consists",
+            ),
+        ),
+        migrations.RunPython(
+            move_images,
+            reverse_code=migrations.RunPython.noop
+        ),
+    ]

ram/consist/models.py

@@ -1,3 +1,5 @@
+import os
+
 from uuid import uuid4
 from django.db import models
 from django.urls import reverse
@@ -19,7 +21,10 @@ class Consist(models.Model):
     company = models.ForeignKey(Company, on_delete=models.CASCADE)
     era = models.CharField(max_length=32, blank=True)
     image = models.ImageField(
-        upload_to="images/", storage=DeduplicatedStorage, null=True, blank=True
+        upload_to=os.path.join("images", "consists"),
+        storage=DeduplicatedStorage,
+        null=True,
+        blank=True,
     )
     notes = RichTextUploadingField(blank=True)
     creation_time = models.DateTimeField(auto_now_add=True)