[TASK] Add CitaviProject class, integrate first handling for uploaded projects.

frontend/views.py

@@ -125,20 +125,37 @@ class UpdateProjectView(ProtectedFormView, SingleObjectMixin):
         self.success_url = self.success_url + self.project_id + '/update'
         return super(UpdateProjectView, self).post(request, *args, **kwargs)
     
-    """ This form_valid handles the file uploads and triggers a citavi schema import and things. """
     def form_valid(self, form, *args, **kwargs):
+        """ This form_valid handles the file upload. """
         original_file = form.files[u'file']
         original_filename = str(original_file)
-        relative_path = default_storage.save('tmp/project_' + self.project_id + '.ctt4', ContentFile(original_file.read()))
-        path = os.path.join(settings.MEDIA_ROOT, relative_path)
         
-        #TODO: Actually validate that we get an SQLite3 file!
+        """ Put file into temporary folder for analysis """
+        relative_path = default_storage.save('tmp/project_' + str(self.project_id) + '.ctt4', ContentFile(original_file.read()))
+        temp_sqlite = os.path.join(settings.MEDIA_ROOT, relative_path)
         
-        # Store this in the project model
-        project = Project.objects.get(id=self.project_id)
-        project.associated_filename = original_filename
-        project.save()
+        """ Test if SQLite is a valid citavi project. """
+        from service import Citavi
+        citavi_project = Citavi.CitaviProject(temp_sqlite)
+        citavi_project_valid = citavi_project.is_valid()
+        """ Free temporary ressources. """
+        del citavi_project
+        default_storage.delete(temp_sqlite)
         
+        if citavi_project_valid == False:
+            """ TODO: Put up an error message or something. """
+            pass
+        else:            
+            """ Actually store file in citavi folder """
+            relative_path = default_storage.save('citavi/project_' + str(self.project_id) + '.ctt4', ContentFile(original_file.read()))
+            sqlite_path = os.path.join(settings.MEDIA_ROOT, relative_path)
+
+            """ Store new original filename in Project """
+            project = Project.objects.get(id=self.project_id)
+            project.associated_filename = original_filename
+            project.save()
+            
+            """ Refresh identities from citavi project. """
+            # TODO
         return super(UpdateProjectView, self).form_valid(form)
-    
-        
+