some view quirks

app/views/group_offers/index.html.slim

@@ -93,11 +93,10 @@ table.table.table-striped
           = link_to t_action(:show), group_offer_path(offer)
           = link_to t('download'), group_offer_path(offer, format: :pdf)
           = link_to t_action(:edit), edit_group_offer_path(offer)
-          - if policy(GroupOffer).destroy?
-            = link_to t_action(:delete), group_offer_path(offer), confirm_deleting(offer)
-          = link_to "#{ offer.active? ? t('.deactivate') : t('.activate') }",
-            change_active_state_group_offer_path(offer), method: :put, remote: :true
-          = link_to_if(policy(GroupOffer).initiate_termination?, 'Beenden', initiate_termination_group_offer_path(offer)) { '' }
+          - if offer.period_end.blank?
+            = link_to "#{ offer.active? ? t('.deactivate') : t('.activate') }",
+              change_active_state_group_offer_path(offer), method: :put, remote: :true
+            = link_to_if(policy(GroupOffer).initiate_termination?, 'Beenden', initiate_termination_group_offer_path(offer)) { '' }
 
 
 nav.navbar.section-navigation

app/views/group_offers/initiate_termination.html.slim

@@ -19,9 +19,8 @@ h2 class=('disabled-title' if @group_offer.group_assignments.running.any?) Endda
   p.text-danger.text-bigger-1 Um das Gruppenangebot zu beenden, müssen erst alle zugehörigen Gruppeneinsätze beendet sein.
 
 = simple_form_for(@group_offer, method: :put, url: submit_initiate_termination_group_offer_path(@group_offer)) do |f|
-  = f.input :period_end, as: :date_picker, disabled: @group_offer.group_assignments.running.any?
-  p.text-info.m-b-10.text-bigger-1
+  = f.input :period_end, as: :date_picker, wrapper: :date_picker, disabled: @group_offer.group_assignments.running.any?
+  p.text-info.m-b-10.m-t-10.text-bigger-1
     em Die Voreinstellung für das Enddatum kann auf ein beliebiges Datum angepasst werden
   hr
-
-  = f.button :submit, disabled: @group_offer.group_assignments.running.any?
+  input.btn.btn-default type='submit' name='commit' value='Gruppenangebots Ende setzen' data-disable-with='Gruppenangebot aktualisieren'

config/initializers/simple_form_bootstrap.rb

@@ -112,15 +112,18 @@ SimpleForm.setup do |config|
     end
   end
 
-  config.wrappers :date_picker, tag: 'div', class: 'form-group date form_datetime input-date-picker', error_class: 'has-error' do |b|
+  config.wrappers :date_picker, tag: 'div', class: 'input-group date form_datetime input-date-picker', error_class: 'has-error' do |b|
     b.use :html5
+    b.use :placeholder
     b.optional :readonly
     b.use :label, class: 'control-label'
-    b.use :input, class: 'input-sm form-control', data: { provide: 'datepicker' }
+
+    b.use :input, class: 'form-control', data: { provide: 'datepicker' }
     b.use :error, wrap_with: { tag: 'span', class: 'help-block' }
     b.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
   end
 
+
   config.wrappers :date_picker_inline, tag: 'div', class: 'date form_datetime input-date-picker field-wrapper-inline', error_class: 'has-error' do |b|
     b.use :html5
     b.optional :readonly