feat(semester-process-volunteer): add nested attribute form table to select...

feat(semester-process-volunteer): add nested attribute form table to select volunteers for semester-process

app/views/semester_processes/_form.html.slim

@@ -4,6 +4,23 @@
   .row:.col-xs-12.col-md-4
     = f.input :semester, collection: @semester.collection, selected: params[:semester], input_html: { class: 'semester-selector' }
 
+  fieldset
+    legend Freiwillige auswählen
+    .table-responsive.table-scrollable
+      table.table.table-striped
+        thead:tr
+          th
+          th Name
+          th Einsatz
+        tbody
+          = f.simple_fields_for :semester_process_volunteers do |fv|
+            tr
+              td= fv.input :selected, as: :boolean, label: false
+              td= link_to fv.object.volunteer.contact.full_name, fv.object.volunteer
+              td.index-action-cell
+                = fv.hidden_field :volunteer_id
+                - fv.object.semester_process_volunteer_missions.each do |mission|
+                  = link_to mission.mission.to_label, mission.mission
 
   .row:.col-xs-12
-      = f.button :submit
+    = f.button :submit