EMA views

* splits ema/views.py (+700 lines) into separate files in new module
    * view files can now be found in /ema/views/...

ema/views/share.py

@@ -0,0 +1,77 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: ksp-servicestelle@sgdnord.rlp.de
+Created on: 19.08.22
+
+"""
+from django.contrib import messages
+from django.contrib.auth.decorators import login_required
+from django.http import HttpRequest
+from django.shortcuts import get_object_or_404, redirect
+from django.utils.translation import gettext_lazy as _
+
+from ema.models import Ema
+from intervention.forms.modals.share import ShareModalForm
+from konova.decorators import conservation_office_group_required, shared_access_required
+
+
+@login_required
+def share_view(request: HttpRequest, id: str, token: str):
+    """ Performs sharing of an ema
+
+    If token given in url is not valid, the user will be redirected to the dashboard
+
+    Args:
+        request (HttpRequest): The incoming request
+        id (str): EMA's id
+        token (str): Access token for EMA
+
+    Returns:
+
+    """
+    user = request.user
+    obj = get_object_or_404(Ema, id=id)
+    # Check tokens
+    if obj.access_token == token:
+        # Send different messages in case user has already been added to list of sharing users
+        if obj.is_shared_with(user):
+            messages.info(
+                request,
+                _("{} has already been shared with you").format(obj.identifier)
+            )
+        else:
+            messages.success(
+                request,
+                _("{} has been shared with you").format(obj.identifier)
+            )
+            obj.share_with_user(user)
+        return redirect("ema:detail", id=id)
+    else:
+        messages.error(
+            request,
+            _("Share link invalid"),
+            extra_tags="danger",
+        )
+        return redirect("home")
+
+
+@login_required
+@conservation_office_group_required
+@shared_access_required(Ema, "id")
+def create_share_view(request: HttpRequest, id: str):
+    """ Renders sharing form for an Ema
+
+    Args:
+        request (HttpRequest): The incoming request
+        id (str): Ema's id
+
+    Returns:
+
+    """
+    obj = get_object_or_404(Ema, id=id)
+    form = ShareModalForm(request.POST or None, instance=obj, request=request)
+    return form.process_request(
+        request,
+        msg_success=_("Share settings updated")
+    )