#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/views.py

@@ -6,12 +6,13 @@ from django.shortcuts import render, get_object_or_404
 
 from intervention.forms import NewInterventionForm, EditInterventionForm, ShareInterventionForm, NewRevocationForm, \
     RunCheckForm, NewDeductionForm
-from intervention.models import Intervention, Revocation
+from intervention.models import Intervention, Revocation, InterventionDocument, RevocationDocument
 from intervention.tables import InterventionTable
 from konova.contexts import BaseContext
 from konova.decorators import *
 from konova.forms import SimpleGeomForm, NewDocumentForm, RemoveModalForm, RecordModalForm
 from konova.sub_settings.django_settings import DEFAULT_DATE_FORMAT
+from konova.utils.documents import remove_document, get_document
 from konova.utils.message_templates import FORM_INVALID, INTERVENTION_INVALID
 from konova.utils.user_checks import in_group
 
@@ -94,6 +95,60 @@ def new_document_view(request: HttpRequest, id: str):
     )
 
 
+@login_required
+def get_revocation_view(request: HttpRequest, doc_id: str):
+    """ Returns the revocation document as downloadable file
+
+    Wraps the generic document fetcher function from konova.utils.
+
+    Args:
+        request (HttpRequest): The incoming request
+        doc_id (str): The document id
+
+    Returns:
+
+    """
+    doc = get_object_or_404(RevocationDocument, id=doc_id)
+    return get_document(doc)
+
+
+@login_required
+def get_document_view(request: HttpRequest, doc_id: str):
+    """ Returns the document as downloadable file
+
+    Wraps the generic document fetcher function from konova.utils.
+
+    Args:
+        request (HttpRequest): The incoming request
+        doc_id (str): The document id
+
+    Returns:
+
+    """
+    doc = get_object_or_404(InterventionDocument, id=doc_id)
+    return get_document(doc)
+
+
+@login_required
+def remove_document_view(request: HttpRequest, doc_id: str):
+    """ Removes the document from the database and file system
+
+    Wraps the generic functionality from konova.utils.
+
+    Args:
+        request (HttpRequest): The incoming request
+        doc_id (str): The document id
+
+    Returns:
+
+    """
+    doc = get_object_or_404(InterventionDocument, id=doc_id)
+    return remove_document(
+        request,
+        doc
+    )
+
+
 @login_required
 @any_group_check
 def open_view(request: HttpRequest, id: str):