Added arbitrary files and links to boxes

boxes/models.py

@@ -110,3 +110,50 @@ class Thing(models.Model):
 
     def __str__(self):
         return self.name
+
+
+def thing_file_upload_path(instance, filename):
+    """Generate a custom path for thing files in format: things/files/<thing_id>/<filename>"""
+    return f'things/files/{instance.thing.id}/{filename}'
+
+
+class ThingFile(models.Model):
+    """A file attachment for a Thing."""
+
+    thing = models.ForeignKey(
+        Thing,
+        on_delete=models.CASCADE,
+        related_name='files'
+    )
+    file = models.FileField(upload_to=thing_file_upload_path)
+    title = models.CharField(max_length=255, help_text='Descriptive name for the file')
+    uploaded_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        ordering = ['-uploaded_at']
+
+    def __str__(self):
+        return f'{self.thing.name} - {self.title}'
+
+    def filename(self):
+        """Return the original filename."""
+        return os.path.basename(self.file.name)
+
+
+class ThingLink(models.Model):
+    """A hyperlink for a Thing."""
+
+    thing = models.ForeignKey(
+        Thing,
+        on_delete=models.CASCADE,
+        related_name='links'
+    )
+    url = models.URLField(max_length=2048)
+    title = models.CharField(max_length=255, help_text='Descriptive title for the link')
+    uploaded_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        ordering = ['-uploaded_at']
+
+    def __str__(self):
+        return f'{self.thing.name} - {self.title}'