Initial file uploding w/ new "files" app

apps/files/models.py

@@ -0,0 +1,22 @@
+from django.db import models
+
+from apps.map.models import CaseStudy, CaseStudyDraft
+
+
+class BaseFile(models.Model):
+    file = models.FileField(
+        upload_to='.',
+    )
+    case_study = models.ForeignKey(
+        CaseStudy, related_name='files', blank=True, null=True,
+    )
+    case_study_draft = models.ForeignKey(
+        CaseStudyDraft, related_name='files', blank=True, null=True
+    )
+
+    class Meta:
+        abstract = True
+
+
+class File(BaseFile):
+    pass