Add snapshot exports and PROJECT_SNAPSHOT_EXPORTS to settings

rdmo/core/settings.py

@@ -203,6 +203,7 @@
     'PROJECT_ISSUES',
     'PROJECT_VIEWS',
     'PROJECT_EXPORTS',
+    'PROJECT_SNAPSHOT_EXPORTS',
     'PROJECT_IMPORTS',
     'PROJECT_IMPORTS_LIST',
     'PROJECT_SEND_ISSUE',
@@ -294,6 +295,8 @@
     ('json', _('JSON'), 'rdmo.projects.exports.JSONExport'),
 ]
 
+PROJECT_SNAPSHOT_EXPORTS = []
+
 PROJECT_IMPORTS = [
     ('xml', _('RDMO XML'), 'rdmo.projects.imports.RDMOXMLImport'),
 ]

rdmo/core/static/core/css/base.scss

@@ -97,9 +97,12 @@ a {
 
 .btn-link {
     color: $link-color;
+    padding: 0;
+    text-decoration: none;
 
     &:hover {
         color: $link-color-hover;
+        text-decoration: none;
     }
 }
 

rdmo/projects/exports.py

@@ -10,7 +10,8 @@
 from rdmo.views.utils import ProjectWrapper
 
 from .renderers import XMLRenderer
-from .serializers.export import ProjectSerializer as ExportSerializer
+from .serializers.export import ProjectSerializer as ProjectExportSerializer
+from .serializers.export import SnapshotSerializer as SnapshotExportSerializer
 
 
 class Export(Plugin):
@@ -155,11 +156,18 @@ def render(self):
 class RDMOXMLExport(Export):
 
     def render(self):
-        serializer = ExportSerializer(self.project)
+        if self.project:
+            content_disposition = f'attachment; filename="{self.project.title}.xml"'
+            serializer = ProjectExportSerializer(self.project)
+
+        else:
+            content_disposition = f'attachment; filename="{self.snapshot.title}.xml"'
+            serializer = SnapshotExportSerializer(self.snapshot)
+
         xmldata = XMLRenderer().render(serializer.data)
         response = HttpResponse(prettify_xml(xmldata), content_type="application/xml")
 
         if settings.EXPORT_CONTENT_DISPOSITION == 'attachment':
-            response['Content-Disposition'] = f'attachment; filename="{self.project.title}.xml"'
+            response['Content-Disposition'] = content_disposition
 
         return response

rdmo/projects/rules.py

@@ -99,6 +99,7 @@ def is_site_manager_for_current_site(user, request):
 rules.add_perm('projects.add_snapshot_object', is_project_manager | is_project_owner | is_site_manager)
 rules.add_perm('projects.change_snapshot_object', is_project_manager | is_project_owner | is_site_manager)
 rules.add_perm('projects.rollback_snapshot_object', is_project_manager | is_project_owner | is_site_manager)
+rules.add_perm('projects.export_snapshot_object', is_project_owner | is_project_manager | is_site_manager)
 
 rules.add_perm('projects.view_value_object', is_project_member | is_site_manager)
 rules.add_perm('projects.add_value_object', is_project_author | is_project_manager | is_project_owner | is_site_manager)

rdmo/projects/serializers/export.py

@@ -39,6 +39,40 @@ class SnapshotSerializer(serializers.ModelSerializer):
 
     values = serializers.SerializerMethodField()
 
+    catalog = serializers.CharField(source='catalog.uri', default=None, read_only=True)
+    tasks = serializers.SerializerMethodField()
+    views = serializers.SerializerMethodField()
+
+    class Meta:
+        model = Snapshot
+        fields = (
+            'title',
+            'description',
+            'catalog',
+            'tasks',
+            'views',
+            'values',
+            'created',
+            'updated'
+        )
+
+    def get_values(self, obj):
+        values = Value.objects.filter(project=obj.project, snapshot=obj) \
+                              .select_related('attribute', 'option')
+        serializer = ValueSerializer(instance=values, many=True)
+        return serializer.data
+
+    def get_tasks(self, obj):
+        return [task.uri for task in obj.project.tasks.all()]
+
+    def get_views(self, obj):
+        return [view.uri for view in obj.project.views.all()]
+
+
+class ProjectSnapshotSerializer(serializers.ModelSerializer):
+
+    values = serializers.SerializerMethodField()
+
     class Meta:
         model = Snapshot
         fields = (
@@ -57,7 +91,7 @@ def get_values(self, obj):
 
 class ProjectSerializer(serializers.ModelSerializer):
 
-    snapshots = SnapshotSerializer(many=True)
+    snapshots = ProjectSnapshotSerializer(many=True)
     values = serializers.SerializerMethodField()
 
     catalog = serializers.CharField(source='catalog.uri', default=None, read_only=True)

rdmo/projects/templates/projects/project_detail_snapshots.html

@@ -54,6 +54,24 @@ <h2>{% trans 'Snapshots' %}</h2>
                             title="{% trans 'Rollback to snapshot' %}">
                         </a>
                         {% endif %}
+
+                        {% has_perm 'projects.export_project_object' request.user project as can_export_project %}
+                        {% if settings.PROJECT_SNAPSHOT_EXPORTS and can_export_project %}
+                        <span class="dropdown">
+                            <button class="btn-link fa fa-download" title="{% trans 'Export snapshot' %}"
+                                    data-toggle="dropdown"></button>
+
+                            <ul class="dropdown-menu" aria-labelledby="dropdownMenuButton">
+                                {% for key, label, class in settings.PROJECT_SNAPSHOT_EXPORTS %}
+                                <li>
+                                    <a href="{% url 'snapshot_export' project.id snapshot.id key %}" target="_blank">
+                                        {{ label }}
+                                    </a>
+                                </li>
+                                {% endfor %}
+                            {% endif %}
+                            </ul>
+                        </span>
                     </td>
                 </tr>
                 {% endfor %}

rdmo/projects/tests/test_view_snapshot.py

@@ -35,6 +35,13 @@
     'site': [1, 2, 3, 4, 5]
 }
 
+export_snapshot_permission_map = {
+    'owner': [1, 2, 3, 4, 5],
+    'manager': [1, 3, 5],
+    'api': [1, 2, 3, 4, 5],
+    'site': [1, 2, 3, 4, 5]
+}
+
 projects = [1, 2, 3, 4, 5]
 snapshots = [1, 3, 7, 4, 5, 6]
 
@@ -206,3 +213,26 @@ def test_snapshot_rollback_post(db, client, files, username, password, project_i
             assert response.status_code == 302
     else:
         assert response.status_code == 404
+
+
+@pytest.mark.parametrize('username,password', users)
+@pytest.mark.parametrize('project_id', projects)
+@pytest.mark.parametrize('snapshot_id', snapshots)
+def test_snapshot_export_xml(db, client, files, username, password, project_id, snapshot_id):
+    client.login(username=username, password=password)
+    project = Project.objects.get(pk=project_id)
+    project_snapshots = list(project.snapshots.values_list('id', flat=True))
+
+    url = reverse('snapshot_export', args=[project_id, snapshot_id, 'xml'])
+    response = client.get(url)
+
+    if snapshot_id in project_snapshots:
+        if project_id in export_snapshot_permission_map.get(username, []):
+            assert response.status_code == 200
+        else:
+            if password:
+                assert response.status_code == 403
+            else:
+                assert response.status_code == 302
+    else:
+        assert response.status_code == 404

rdmo/projects/urls/__init__.py

@@ -35,6 +35,7 @@
     ProjectViewExportView,
     ProjectViewView,
     SnapshotCreateView,
+    SnapshotExportView,
     SnapshotRollbackView,
     SnapshotUpdateView,
 )
@@ -109,6 +110,8 @@
             SnapshotUpdateView.as_view(), name='snapshot_update'),
     re_path(r'^(?P<project_id>[0-9]+)/snapshots/(?P<pk>[0-9]+)/rollback/$',
             SnapshotRollbackView.as_view(), name='snapshot_rollback'),
+    re_path(r'^(?P<project_id>[0-9]+)/snapshots/(?P<pk>[0-9]+)/export/(?P<format>[a-z-]+)/$',
+            SnapshotExportView.as_view(), name='snapshot_export'),
 
     re_path(r'^(?P<pk>[0-9]+)/answers/$',
             ProjectAnswersView.as_view(), name='project_answers'),

rdmo/projects/views/__init__.py

@@ -25,4 +25,4 @@
     ProjectUpdateViewsView,
 )
 from .project_view import ProjectViewExportView, ProjectViewView
-from .snapshot import SnapshotCreateView, SnapshotRollbackView, SnapshotUpdateView
+from .snapshot import SnapshotCreateView, SnapshotExportView, SnapshotRollbackView, SnapshotUpdateView

rdmo/projects/views/snapshot.py

@@ -1,10 +1,11 @@
 import logging
 
-from django.http import HttpResponseRedirect
+from django.http import Http404, HttpResponseRedirect
 from django.shortcuts import get_object_or_404
 from django.urls import reverse
 from django.views.generic import CreateView, DetailView, UpdateView
 
+from rdmo.core.plugins import get_plugin
 from rdmo.core.views import ObjectPermissionMixin, RedirectViewMixin
 
 from ..forms import SnapshotCreateForm
@@ -63,3 +64,33 @@ def post(self, request, *args, **kwargs):
             snapshot.rollback()
 
         return HttpResponseRedirect(reverse('project', args=[snapshot.project.id]))
+
+
+class SnapshotExportView(ObjectPermissionMixin, DetailView):
+    model = Snapshot
+    queryset = Snapshot.objects.all()
+    permission_required = 'projects.export_snapshot_object'
+
+    def get_queryset(self):
+        return Snapshot.objects.filter(project_id=self.kwargs['project_id'])
+
+    def get_permission_object(self):
+        return self.get_object().project
+
+    def get_export_plugin(self):
+        export_plugin = get_plugin('PROJECT_SNAPSHOT_EXPORTS', self.kwargs.get('format'))
+        if export_plugin is None:
+            raise Http404
+
+        export_plugin.request = self.request
+        export_plugin.snapshot = self.object
+
+        return export_plugin
+
+    def get(self, request, *args, **kwargs):
+        self.object = self.get_object()
+        return self.get_export_plugin().render()
+
+    def post(self, request, *args, **kwargs):
+        self.object = self.get_object()
+        return self.get_export_plugin().submit()

testing/config/settings/base.py

@@ -71,6 +71,10 @@
 
 PROJECT_REMOVE_VIEWS = True
 
+PROJECT_SNAPSHOT_EXPORTS = [
+    ('xml', _('RDMO XML'), 'rdmo.projects.exports.RDMOXMLExport'),
+]
+
 EMAIL_RECIPIENTS_CHOICES = [
     ('[email protected]', 'Emmi Email <[email protected]>'),
 ]