Rework user-interface for editing recurring tasks

app/views/tasks/_form.html.haml

@@ -1,31 +1,11 @@
-- content_for :javascript do
-  :javascript
-    $(function() {
-      $("#task_user_list").tokenInput("#{users_path(:format => :json)}", {
-        crossDomain: false,
-        prePopulate: $("#task_user_list").data("pre"),
-        hintText: '#{escape_javascript(t('.search.hint'))}',
-        noResultText: '#{escape_javascript(t('.search.noresult'))}',
-        searchingText: '#{escape_javascript(t('.search.placeholder'))}',
-        theme: 'facebook'
-      });
-    });
-
-- content_for :sidebar do
-  = render "shared/workgroup_members"
-
-= simple_form_for @task do |f|
-  = f.hidden_field :current_user_id
-  = f.input :name
-  = f.input :description, as: :text, input_html: {rows: 10}
-  = f.input :duration, :as => :select, :collection => 1..3
-  = f.input :user_list, :as => :string, :input_html => { 'data-pre' => @task.users.map(&:token_attributes).to_json }
-  = f.input :required_users
-  = f.association :workgroup
-  = f.input :due_date, as: :date_picker
-  = f.input :done
-  .form-actions
-    = f.submit class: 'btn btn-primary'
-    - if @task.new_record? or @task.periodic?
-      = f.submit t('.submit.periodic'), name: 'periodic', class: 'btn'
-    = link_to t('ui.or_cancel'), :back
+= form.hidden_field :current_user_id
+= form.input :name
+= form.input :description, as: :text, input_html: {rows: 10}
+= form.input :duration, :as => :select, :collection => 1..3
+- unless local_assigns[:periodic]
+  = form.input :user_list, :as => :string, :input_html => { 'data-pre' => form.object.users.map(&:token_attributes).to_json }
+= form.input :required_users
+= form.association :workgroup
+= form.input :due_date, as: :date_picker
+- unless local_assigns[:periodic]
+  = form.input :done