#18 File upload in certain folders

* refactors documents and file upload to be distributed into different subfolders, depending on the type of document (InterventionDocument, RevocationDocument, ...)
* refactors Document model into AbstractDocument
* subclasses RevocationDocument, InterventionDocument, COmpensationDocument, EmaDocument and EcoAccountDocument from AbstractDocument to provide proper functionality for each
* adds new specialized routes for each new document type (opening, removing)
* drops generic get and remove routes for documents

intervention/forms.py

@@ -15,9 +15,8 @@ from django.urls import reverse
 from django.utils.translation import gettext_lazy as _
 
 from compensation.models import EcoAccountDeduction, EcoAccount
-from intervention.models import Intervention, Revocation
+from intervention.models import Intervention, Revocation, RevocationDocument
 from konova.forms import BaseForm, BaseModalForm
-from konova.models import Document
 from konova.settings import DEFAULT_LAT, DEFAULT_LON, DEFAULT_ZOOM, ZB_GROUP, ETS_GROUP
 from konova.utils.messenger import Messenger
 from konova.utils.user_checks import in_group
@@ -372,19 +371,9 @@ class NewRevocationForm(BaseModalForm):
                 user=self.user,
                 action=UserAction.EDITED
             )
-            if self.cleaned_data["file"]:
-                document = Document.objects.create(
-                    title="revocation_of_{}".format(self.instance.identifier),
-                    date_of_creation=self.cleaned_data["date"],
-                    comment=self.cleaned_data["comment"],
-                    file=self.cleaned_data["file"],
-                )
-            else:
-                document = None
             revocation = Revocation.objects.create(
                 date=self.cleaned_data["date"],
                 comment=self.cleaned_data["comment"],
-                document=document,
                 created=created_action,
             )
             self.instance.modified = edited_action
@@ -392,6 +381,15 @@ class NewRevocationForm(BaseModalForm):
             self.instance.log.add(edited_action)
             self.instance.legal.revocation = revocation
             self.instance.legal.save()
+
+            if self.cleaned_data["file"]:
+                RevocationDocument.objects.create(
+                    title="revocation_of_{}".format(self.instance.identifier),
+                    date_of_creation=self.cleaned_data["date"],
+                    comment=self.cleaned_data["comment"],
+                    file=self.cleaned_data["file"],
+                    instance=revocation
+                )
         return revocation